Charles M. Little, DO, FACEP
- Program Coordinator, Pandemic Taskforce
- University of Colorado Hospital
- Associate Professor
- Division of Emergency Medicine
- University of Colorado Denver School of Medicine
- Aurora, Colorado
Therefore anxiety symptoms upset stomach 150mg effexor xr amex, careful history along reported to be between 168 and 799 per 100 anxiety hotline 150mg effexor xr with visa,000 in with objective sleep data gathered in polysomnography most studies anxiety 9 year old order discount effexor xr on-line, although Japanese studies have indicated a higher prevalence of 1600 per 100 anxiety therapist order 37.5 mg effexor xr visa,0001 mood anxiety symptoms questionnaire effexor xr 75mg with visa,2 anxiety 9-5 effexor xr 37.5 mg visa. None of and multiple sleep latency testing are needed to make an accurate diagnosis. Hypocretin is a peptide derived from the Narcolepsy can begin at any age, although the dorsolateral hypothalamus that has been linked to majority of the people diagnosed with narcolepsy begin 6 multiple regulatory functions including sleep/wake to show symptoms between the ages of 10 and 25 yr. There may be a bimodal distribution with a signifcant 7 Sleep fragmentation is observed when there is a but smaller peak occurring in the fourth decade of life. Hypocretin functions whereas older cohorts report that cataplexy is the 6 through two G protein coupled receptors. Men seem to be more containing hypocretin are linked to monoamine commonly affected, with narcolepsy occurring 1. Defciencies and genetic factors contributing to the development of hypocretin can lead to abnormailities in the of this disease. Supporting the evidence for an function of these monoamine systems, which in turn environmental infuence is the fact that the disease is can mediate the symptoms of narcolespy. Dopamine not apparent at birth, but instead commonly has its has signifcant wakefulness promoting properties, as onset during the second decade of life. A higher Animal studies provided some of the earliest incidence of narcolepsy has been seen in people born in 14 evidence that hypocretin plays some role in narcolepsy. While most cases of narcolepsy can express the narcoleptic phenotype that is transmitted are sporadic, there are multiple reports of familial 10 by an autosomal recessive gene. First-degree relatives have an estimated 10 has revealed the presence of fragmented sleep, episodes a 1 to 2 per cent chance of developing narcolepsy. Genetic analysis led to the discovery prevelance of narcolepsy in the general population. Because of this observation, it has revealed a model in which mutations found in the been postulated that narcolepsy may result from an preprohypocretin promoter produce the narcolepsy autoimmune process, though this has not been verifed11. Moreover, different gene without the hypocretin 1 receptor are not observed subtypes carry various levels of frequency, specifcity, to have cataplexy-like behaviours, but do show and relationship to ethnic backgrounds10. Human pathology studies have this is the most commonly occurring feature of the revealed reductions of Hcrt1, Hcrt2, and preproHcrt tetrad22. Also in support of other times the patient is active and participating in this idea is that narcolepsy has a typical onset in the some task. This urge to sleep tends to be heightened second and third decades of life, which is common by more monotonous activity or in low stimulation in many other autoimmune disorders. Narcoleptics often report that taking a identifed monozygotic twins who were concordant for nap or succumbing to these sleep attacks help them, narcolepsy with cataplexy but found to have normal as they often feel refreshed upon waking, although cerebral spinal fuid concentrations of hypocretin-1 usually only for a short period. Patients with narcolepsy and no mutations in the hypocretin gene or hypocretin generally do not spend a greater portion of their time receptor gene, suggesting that dysfunction of the asleep compared to people who do not have narcolepsy hypocretin system may not be the only pathway to despite these recurring daytime sleep spells because narcolepsy17. The background level of have found hypocretin to be absent or reduced in the cerebrospinal fuid of narcoleptics; over 90 per cent sleepiness can also have signifcant impact on daytime of patients show signifcant reductions in hypocretin functioning, impairing concentration, work and school performance, and general quality of life24,25. However, this association is not as clear It is important to clarify that the narcoleptic patient when cataplexy is absent, with only approximately 20 is sleepy and not just fatigued, although both symptoms 40 per cent of non-cataplectic patients showing low are often reported. Fatigue is resulting due to from tumours, traumatic brain injury, associated with many medical and psychiatric illnesses. Alterations in hypocretin Individuals who suffer from fatigue do not usually have not been seen in other sleep disorders such as exhibit abnormal results on multiple sleep latency sleep apnoea, insomnia, and restless leg syndrome11. It usually occurs bilaterally and is often in as encephalitis, multiple sclerosis, genetic disorders, response to emotions such as humour, anger, surprise, 12 and tremendous joy22,23. There may symptoms are present in all patients and these may vary be twitching of the facial muscles or limbs which can 6,20 lead to a misdiagnosis of epilepsy22. Also, these symptoms can be found in other disorders, including patients may describe a general sense of weakness but other distinct sleep disorders21. Patients may also Of the four symptoms in the classic tetrad, excessive complain of simply feeling clumsy or unco-ordinated, daytime sleepiness is the one most consistently reported particularly at times involving strong emotions. Evaluating this complaint possible for cataplexy to emerge without the event is problematic, however, because it is observed in being triggered by an emotion or stress, but this is numerous other disorders related to sleep and many more unusual. In rare primary sleep disorders have daytime sleepiness as a circumstances, these can persist for hours, resulting in symptom, including sleep deprivation, delayed sleep status cataplecticus. Sleep paralysis occurs as a patient atypical depression, seasonal affective disorder, and with narcolepsy is either falling asleep or awakening. The exact cause of primary human narcolepsy Patients with narcolepsy may experience remains unknown, although loss of hypocretin appears hallucinations at sleep onset (hypnagogic) and upon 12,18 20,22,23 to play a role in most cases with cataplexy. Like normal dreams, are also other neurological insults that appear to have these phenomena tend to be visual in nature but may 19 narcolepsy symptoms as a consequence. Characteristically, these include primary narcolepsy, these entities may or may not simple forms, objects, animals, and people. Lesions of the hypothalamus and nearby types of dream-like phenomena which might include structures can produce narcolepsy-like symptoms. Multiple sclerosis, tumours, and strokes have all been In addition to the classic tetrad, patients also associated with narcolepsy as well. More global insults describe signifcant problems with insomnia, repeated such as traumatic brain injury, encephalomyelitis, awakenings, and complaints related to their level of and congenital disorders such as Neimann-Pick type tiredness such as blurry vision, diploplia, and trouble C disease, myotonic dystrophy, and Prader-Willi with concentration and memory22,23,26. It automatic behaviours that occur at the time of increasing is unknown if the changes in hypocretin levels are a sleepiness22. These automatic behaviours are generally consequence of the primary insult or a coincidental related to routine activities that require little attention fnding. Additionally, these changes can be transient, but may involve signifcant errors or risk, such as as the low levels found in many traumatic brain injury driving. Narcolepsy is often co-morbid with other sleep patients may return to normal after six months12. The symptoms of narcolepsy and secondary effects the International Classifcation of Sleep Disorders of the disorder can have major negative effects on all consists of two classifcations of narcolepsy: with or without cataplexy21. Several scales exist to measure 31 is monitored all night to gather data on breathing, sleepiness, including the Epworth Sleepiness Scale. Ideally, the reveal snoring, sleep talking, and reveal movements or sleeping conditions are set so that the patients are best complex behaviours that the patient may be performing able to fall asleep. There is some evidence that this this could still be insuffcient for a given individual, criteria are not specifc to narcolepsy. Co-morbid medical and psychiatric Myotonic dystrophy conditions could contribute to an increased tendency Encephalomyelitis to fall asleep during the day. As such, medications that can alter alertness, diagnosed as a psychiatric illness. Patients with mood to verify their sleep habits, time in bed, and attempt to disorders often have insomnia and/or hypersomnia38. Mood disorders can There are no genetic tests currently available for be associated with psychosis, and hypnagogic/ clinical use to make a positive diagnosis of narcolepsy. Additionally, and those with narcolepsy can express some level of the genes identifed so far are specifc to various 30,41 10,37 impairment in cognitive performance. Consequently, There are also no blood tests available to confrm a the behaviours observed as a result of the sleepiness diagnosis. To further confound the involves a cataplectic event that is not initiated by an diagnosis, both often respond to treatment with stimulant emotional event such as laughter, is only associated 8 medications and there is evidence of improvement in with hypocretin defciency in 20 per cent of cases. Narcolepsy can mind that narcolepsy does not exclude other diagnoses also be misdiagnosed as a conversion disorder. Auditory lacking plaques in the hypothalamus, do not show hallucinations are experienced by both groups, though changes in hypocretin and do not exhibit the tetrad of much more commonly in patients with schizophrenia. Both of these mediations while seen by patients with schizophrenia only 29 per are available in immediate release and longer acting cent of the time40. Adderall is given in doses of 10-60 mg usually report their hallucinations to be associated with per day, with 60 mg being the maximum total daily sleep and those with schizophrenia do not generally dose. Methylphenidate comes in numerous brands and link these phenomenon to their sleep. In fact, providing stimulants to a patient with these medications can have profound side effects, schizophrenia may worsen their psychotic symptoms. Because of the noradrenergic Conversely, many antipsychotic medications may effects, amphetamines can cause hypertension. In some patients, and patient may be led astray by the resolution of the stimulants can also produce or exacerbate co-morbid psychotic symptoms. Epilepsy is have insomnia, the time of day when stimulants are a commonly occurring condition that may be given as taken must be monitored, so as not to produce even the initial diagnosis45. The presence of hallucinations sleep apnoea/hypopnoea syndrome, and shift work may confuse patients and clinicians. Its mechanism of action is not fully strategies for these neurologic disorders may overlap, understood, but it is believed to work through the particularly with dopamine agonist medications, dopaminergic, adrenergic, and histaminergic systems though such agents can also cause sleep attacks and in the hypothalamus13,51. As a defnitive cause of narcolepsy has yet to be the therapeutic range is 100 to 400 mg each day50. One drawback, most problematic issue for narcoleptics, most of the though, is compliance with the second daily dose, treatments target this particular symptom8. Stimulant which may then hinder the true effectiveness of medications have been the mainstay of therapy for this medication. These medications primarily act by 50,52 headache, dry mouth, insomnia, nausea, and anxiety. Those medications Some people also experience cardiovascular effects that infuence dopamine and norepinephrine have been including tachycardia, palpitations, or chest pain. Thus amphetamines and methylphenidate, in their complaints include diffculty in concentrating, various formulations, have been the most commonly depression, and paresthesias. Modafnil is There is some evidence that it is most effective when currently not scheduled as other stimulant medications. Multiple studies have been conducted in which modafnil is compared to traditional stimulant Another medication found to be effective for medication, with mixed results4. However, in relative low doses it can particular difference between stimulants and modafnil stimulate dopamine release, and at higher doses inhibit generally used longer washout periods, and subjects dopamine release, thereby resulting in both inhibitory received modafnil at its upper dosage limits4. It also treatment, subjects reported improvements in quality appears to promote glutamate release, further enhancing of life, mood, and a higher level of satisfaction with its stimulating properties. The effectiveness of sodium oxybate has been Modafnil is not currently approved for treatment established in placebo controlled trials4. However, it is prescribed to children and studies in which subjects have taken sodium oxabate appears to be effective55. Treatment behavioural and pharmacological (for assessed, utilizing the maintenance of wakefulness excessive sleepiness and cataplexy) test and Epworth sleepiness scale, respectively. Behavioural Findings from the study revealed that both subjective Ensure good sleep hygiene (avoid sleep deprivation) and objective effects of sodium oxalate were superior Consider use of strategic napping 58 compared to treatment with modafnil. The same Pharmacological: For excessive sleepiness study also found that modafnil did not separate from Methylphenidate placebo, however. It has also been Protriptyline called a date rape drug, being associated with sexual Desipramine assault. It has been utilized by bodybuilders because Imipramine of its ability to stimulate human growth hormone. Anticholinergic effects hypertension, or renal impairment may need additional such as blurred vision, urinary retention, orthostatic evaluation prior to starting sodium oxybate. It undergoes hypotension, constipation, dry mouth, and dizziness are signifcant frst pass metabolism in the liver, so patients common as well. In headache, nausea, dizziness, nasopharyngitis, rare circumstances, the cataplexy may progress to status somnolence, vomiting, and urinary incontinence20,57. Venlafaxine and the dangers inherent in somnambulism, patients must duloxetine, both serotonin norepinephrine reuptake be cautioned regarding this potentially problematic 62 inhibitors, have been used successfully. Selegiline has signifcant disadvantages with antidepressant usage in this population63. Sexual though, as it requires a low tyramine diet and has side effects, headaches, gastrointestinal changes, and numerous interactions with other medications. It appeared effective for and neuropsychiatric evaluation did not predict cataplexy and consolidated sleep. The exact pathophysiology It appears to have wakefulness promoting properties, is not yet known, but hypocretin defciency appears to affecting the noradrenergic and histaminergic systems. The symptoms of narcolepsy can overlap with therapies are also being explored13,20. Administration many other disorders, at times leading to misdiagnosis of hypocretin has not been effcacious so far because it and inappropriate treatments. Attention to sleep hygiene and strategic use of daytime Napping for several minutes to an hour, though, does naps may also be helpful. Newer pharmacologic options not generally suit the demands of most schedules are available that may have improved side effect profles and can seriously interfere with work or school. Nonetheless, naps may be necessary for some patients Novel approaches are being explored to provide better and arrangements should be made with employers resolution of symptoms. Given the early epidemiological study on prevalence of narcolepsy in onset and lifelong aspects, career counselling may Japanese. The vigilance or concentration for extended periods of epidemiology of narcolepsy in Olmsted County, Minnesota: a time may be unsuitable options. Driving restrictions are another Treatment of narcolepsy and other hypersomnias of central origin. J taken to promote wakefulness and reduce driving Psychosom Res 2005; 59: 399-405. Dauvilliers Y, Montplaisir J, Molinari N, Carlander B, Ondze sleepiness is too sleepy to drive, multiple approaches B, Besset A, et al.
These genes control the production of chemicals in the brain that may signal sleep and wakefulness cycles anxiety insomnia effexor xr 37.5 mg fast delivery. Hypersomnia (Daytime Sleepiness) Hypersomnia anxiety untreated buy effexor xr without prescription, which refers to either excessive daytime sleepiness or excessive time spent sleeping anxiety 6th sense cheap 75mg effexor xr free shipping, is a condition in which a person has trouble staying awake during the day anxiety 5 things you can see buy effexor xr pills in toronto. People who have hypersomnia can fall asleep at any time for instance anxiety breathing generic 150 mg effexor xr mastercard, at work or while they are driving anxiety nervousness buy effexor xr 150mg with visa. They may also have other sleep-related problems, including a lack of energy and trouble thinking clearly. Occasional snoring is usually not very serious and is mostly a nuisance for your bed partner. However, if you are a habitual snorer, you not only disrupt the sleep patterns of those close to you, but you also impair your own sleep quality. However, habitual snorers can be at risk for serious health problems, including obstructive sleep apnea. Snoring occurs when the flow of air through the mouth and nose is physically obstructed. Air flow can be obstructed by a combination of factors, including: Obstructed nasal airways Some people snore only during allergy seasons or when they have a sinus infection. Deformities of the nose such as a deviated septum (a structural change in the wall that separates one nostril from the other) or nasal polyps can also cause obstruction. This can result from deep sleep, alcohol consumption, or use of some sleeping pills. When these structures vibrate and bump against one another the airway becomes obstructed, causing snoring. Page 33 | Sleep: A Basic Introduction Alcohol increases snoring as it relaxes tissue at the back of the throat causing it collapse into the airway and vibrate more easily. Dream-enacting behaviors include talking, yelling, punching, kicking, sitting, jumping from bed, arm flailing, and grabbing. An acute form may occur during withdrawal from alcohol or sedative-hypnotic drugs. In a rare case back in 2003, Jules Lowe of Manchester attacked and killed his 82 year old father while sleepwalking. Lowe had a history of sleepwalking, was under great stress and had no motive to kill his father. Sleep expert Dr Irshaad Ebrhaim testified that tests showed Lowe to be sleepwalking at the time of the attack and in 2005 Lowe was acquitted. When left untreated, the negative effects of sleep disorders can lead to further health consequences. They can also affect your performance at work, cause strain in relationships, and impair your ability to perform daily activities. These tests can be crucial in determining the right course of treatment for sleep disorders. There are significant ongoing health problems which can result from chronic cases and you can end up causing injury to yourself and other people. Page 34 | Sleep: A Basic Introduction Treatment for sleep disorders can vary depending on the type of problem and underlying cause. However it generally includes a combination of medical treatments and lifestyle changes. Page 35 | Sleep: A Basic Introduction Part 3 Sleep hygiene including and methods and techniques for dealing with insomnia and other sleep related problems Page 36 | Sleep: A Basic Introduction What is Sleep Hygiene Now we have explored what sleep is and the subsequent sleep problems that can potentially result, we can start to look at ways to deal with some of these issues, along with some useful hints and tips to promote good sleep. This recommendation was developed in the late 1970s as a method to help people with mild to moderate insomnia. Clinicians assess the sleep hygiene of people who present with insomnia and other conditions, such as depression, and offer recommendations based on the assessment. Sleep hygiene recommendations include establishing a regular sleep schedule, using naps with care, not exercising physically or mentally too close to bedtime, limiting worry, limiting exposure to light in the hours before sleep, getting out of bed if sleep does not come, not using bed for anything but sleep and sex, avoiding alcohol as well as nicotine, caffeine, and other stimulants in the hours before bedtime, and having a peaceful, comfortable and dark sleep environment. Avoiding nicotine, caffeine (including coffee, energy drinks, soft drinks, tea, chocolate, and some pain relievers), and other stimulants in the hours before bedtime is recommended by most sleep hygiene specialists, as these substances activate neurobiological systems that maintain wakefulness. Alcohol near bedtime is frequently discouraged by clinicians, because, although alcohol can induce sleepiness initially, the arousal caused by metabolizing alcohol can disrupt and significantly fragment sleep. However, because it sedates, it harms the neurological processes occurring during normal sleep. The effects of alcohol on the body wear off quickly and this leads to increased amounts of light sleep during the second half of the night. The use of alcohol to aid sleep is a short term acute measure, but Page 37 | Sleep: A Basic Introduction be weary of using this method long term as it may lead to addiction. Alcohol is also a diuretic which may mean we need to go to the toilet more during the night which disrupts our sleep and it also dehydrates the body meaning sleep becomes fragmented. Similarly, limit the intake of any liquids before bedtime to prevent interruptions due to urination. It is therefore advised that if you smoke and experience sleep difficulties, try and have your last cigarette at least 4 hours before bedtime. Both consumption of a large meal just before bedtime, requiring effort to metabolise it all, and hunger have been associated with disrupted sleep. It is recommended that you try and eat your main meal 2-3 hours before bed or alternatively, eat a light snack before bedtime. Cheese (along with other foods such as chocolate, pickles and tomatoes) contain tyrosine which causes the body to produce dopamine which in turn stimulates the brain and keeps it active. Nuisance noises, light, and uncomfortable temperatures have been shown to disrupt continuous sleep. It is therefore recommended that you reduce light exposure at least 30 minutes before bed. However, what is interesting is that for most of us, one of the last things we will do before bed is brush our teeth in a brightly lit bathroom. So ensure that you block out as much external light as possible, for example, by means of blackout curtains/blinds and eliminate, prevent yourself from using electronic devices (which emit blue light and signal to the brain to stop producing melatonin) before you go to bed and if you have to get up in the night, resist the temptation to put on a light. Then in a morning when you wake, it is advised to obtain at least 30 minutes of sunlight shortly after arising as this will synchronise the body clock to the new day. Page 38 | Sleep: A Basic Introduction Another recommendation that is frequently made, though less studied, includes selecting comfortable mattresses, bedding, and pillows. It is important to get a mattress that suits you and if you have a tendency to steal the duvet in the night, make sure you get two. If you can bend your pillows in half that indicates that the pillow is dead and needs replacing. Men have tendency to keep the same pillows for long periods of time and if they are not suitable, then long-standing sleep problems may persist until these are replaced accordingly. Eliminating a visible bedroom clock to prevent us focusing on the time passing when we are trying to fall asleep is another recommendation that is frequently made. Human beings have an innate tendency to want to know the time of day at all times, and that includes during the night. If you are a frequent clock watcher, it is advised to either eliminate alarm clocks from the bedroom or turn the clock faces away from you so they cannot be seen. When we wake in the middle of the night, we check the clock and subconsciously calculate how much time we have left in bed before we have to get up. Most pets are either nocturnal or have different sleep-wake patterns to humans and so they are awake when we are trying to sleep which may prevent sleep from being achieved. It is important to associate the bedroom with calm, relaxation and sleep and make it a haven for sleep. People who exercise experience better quality of sleep than those who do not, but exercising too late in the day can be activating and delay falling asleep. However, exercise should not be undertaken within 3 hours of bedtime as this stimulates the body and the mind, preventing sleep. Conversely, continuing important work activities or planning shortly before bedtime or once in bed has been shown to delay falling asleep. Similarly, good sleep hygiene involves minimizing time spent thinking about worries or anything emotionally upsetting shortly before bedtime. Trying purposefully to fall asleep may induce frustration that further prevents falling asleep, so in such situations a person may be advised to get out of bed and try something else for a brief amount of time. If we have disrupted sleep routines, for whatever reasons, that prevents us from getting to sleep at the time that we are used to and as a result we experience sleep deprivation. When we have an innocent lie in on a weekend, this will throw your body clock out of sync making it crave for extra sleep in the upcoming days to compensate for the sleep it thinks it should have had. Having a hot bath or shower before bed is also recommended as this increases the core body temperature. Afterwards the body cools down and this induces sleep as this process mimics the temperature changes that occur naturally when the body becomes sleepy. Other behaviours which are recommended with regards to sleep are to avoid napping during the day where possible, only using the bedroom for sleep, avoiding non-sleeping activities in bed such as work, emails or paperwork and try to avoid serious discussions, arguments or conversations prior to bedtime. Checking emails, social media before bed get the brain thinking a time when you should be winding down. There is also an expectation on people these days to respond immediately or people are waiting for an immediate response from someone else. Using Sleep Diaries Using a sleep diary (like the one shown on figure 6 below) is a good way of assessing how much sleep you are getting and allows you to identify certain aspects of your sleep hygiene and bedtime routines which may be contributing to your lack of sleep. Page 40 | Sleep: A Basic Introduction Please note that if you are going to use a sleep diary, it is best to complete it 20 minutes after waking. Page 41 | Sleep: A Basic Introduction Figure 6: Example of a Sleep Diary template Date How you Bed Time Time to Wake in Wake up Total Food and Temp, Activity Notes How did you slept This would involve keeping a sleep diary or journal (see below) for a couple weeks. The journal will help to identify patterns of thoughts or behaviors, stressors, etc. After identifying the possible underlying cause and the factors contributing to insomnia, the person can begin taking steps towards getting better sleep. Stimulus Control Generally, for people experiencing difficulties with sleep, spending less time in bed will result in deeper and more continuous sleep. It is therefore recommended to eliminate the use of the bed for any other activities except sleep. What I mean by this is that cognitively, we begin to associate the bedroom with sleep only. In this instance, we only sleep when we are tired and leave the bedroom if sleep is not achieved within 20 30 minutes. Eventually, after a period of time, we will expect to go to sleep when we enter the bedroom because sleeping has been the sole purpose of that room. If I set my laptop up in the dining room at home I find that I am hungrier as I have created a stimulus that when I am in that particular room, all I do is eat. The pairing of the bedroom and poor sleep will result in automatic association between the two and will evoke conditioned arousal. If we can change this thought, then sleep will automatically occur each time we go to sleep in the bedroom, because our brain is expecting this to happen. To determine whether your sleep arrangements are adequate try this quick exercise. If you have recently stayed over at a hotel, B&B or another location other than your home, did you sleep better or worse when sleeping somewhere unfamiliar If you slept better, that may indicate a slight Page 43 | Sleep: A Basic Introduction degree of conditioned arousal as you appear to have negative thoughts towards your usual sleeping place.
Measurement of Nitrite in Blood Samples Using the Ferricyanide-Based Hemoglobin Oxidation Assay anxiety low blood pressure cost of effexor xr. Tocotrienols in health and disease: the other half of the natural vitamin E family anxiety symptoms gad purchase 37.5 mg effexor xr. Fenitrothion Alters Sperm Characteristics in Rats: Ameliorating Effects of Palm Oil Tocotrienol-Rich Fraction anxiety symptoms not anxious cheap effexor xr 150mg line. The discovery of the antioxidant function of vitamin E: the contribution of Henry A anxiety counseling discount effexor xr 75mg visa. Many horses have very mild or inapparent signs on first exposure anxiety symptoms edu purchase effexor xr 75mg without a prescription, and carry this virus subclinically anxiety disorder nos 3000 order 37.5mg effexor xr amex. The owners of these animals are Swamp Fever, unlikely to realize that they are infected unless serological testing is done. All infected Mountain Fever, horses, including those that are asymptomatic, become carriers and are infectious for Slow Fever, life. Infected animals must either be destroyed or remain permanently isolated from Equine Malarial Fever, other equids to prevent transmission. Species Affected Equine infectious anemia virus is reported to infect all members of the Equidae. Clinical cases occur in horses and ponies (Equus caballus), and have also been reported in mules. Some horse-adapted viral isolates replicate to low levels without clinical signs in donkeys (E. This disease appears to be absent from a few countries including Iceland and Japan. Transmission Equine infectious anemia virus is transmitted mechanically on the mouthparts of biting insects. In horses, this virus persists in blood leukocytes for life, and also occurs in plasma during febrile episodes. Symptomatic horses are more likely to transmit the disease than animals with inapparent infections; after visiting an asymptomatic carrier, only one out of every 6 million flies is likely to become a vector. High levels of viremia have also been reported during the early stages of the infection in mules. Significantly lower titers have been reported in donkeys inoculated with certain horse-adapted strains. The fly attempts to resume feeding immediately, either on the same animal or on another nearby host, resulting in the transfer of infectious blood. This virus can also be transmitted in blood transfusions or on contaminated needles, surgical instruments and teeth floats. However, it can be found in milk and semen, and horses can be infected by inoculating these secretions subcutaneously. Although venereal transmission does not seem to be a major route of spread, one stallion appears to have transmitted the virus to a mare with a vaginal tear during breeding. The possibility of aerosol transmission by infectious material during close contact was raised during the 2006 outbreak in Ireland. More severely with high morbidity and mortality rates have been reported, affected horses can become weak, depressed and but deaths are otherwise uncommon in naturally infected inappetent, with additional signs that may include jaundice, horses. Experimental inoculation with a high viral dose can tachypnea, tachycardia, ventral pitting edema, result in mortality rates as high as 80%. Anemia can occur, Diagnosis although it is more likely to be severe in chronically Clinical infected animals. Occasionally, horses become gravely ill Equine infectious anemia should be among the and may die during the acute stage. After the initial bout, differentials in individual horses with weight loss, edema most horses become asymptomatic carriers; however, some and intermittent fever. It should also be considered when animals develop recurring clinical signs that vary from mild several horses experience fever, anemia, edema, illness and failure to thrive to fever, depression, petechial progressive weakness or weight loss, particularly when new hemorrhages on the mucus membranes, weight loss, anemia animals have been introduced into the herd or a member of and dependent edema. Differential diagnosis Ophthalmic lesions, characterized by depigmentation with the differential diagnosis includes other febrile prominent choroidal vessels, have been reported in illnesses including equine viral arteritis, purpura chronically infected horses. In a recent experiment, Laboratory tests donkeys inoculated with two horse-adapted strains became infected but remained asymptomatic. Donkeys inoculated Equine infectious anemia is often confirmed by with a serially-passaged, donkey-adapted strain in China are serology. Once an animal is infected, it becomes a carrier reported to have developed clinical signs. In 3 weeks after infection; in rare cases, they may not develop chronic cases, emaciation may also be noted. Chronically infected horses that die between evidence suggests that antibody production may be delayed clinical episodes usually have no gross lesions, but some in donkeys and mules. These tests are valuable in determining the infection status Morbidity and Mortality of foals born to infected mares, because young animals may the infection rate varies with the geographic region. In addition, this technique can ensure that been seen on farms where the disease has been endemic for blood donors and horses used for vaccine or antiserum many years. Virus isolation animals in small groups separated by at least 200 yards is performed in horse leukocyte cultures; because these might be beneficial when the virus is being transmitted cells are difficult to grow, this test may not be available in within a farm. This virus does not persist in Antibody status and clinical signs in the test animal are insects, which are mechanical vectors. Public Health Samples to collect There is no evidence that equine infectious anemia is a Serum should be collected for serology. Manual for the Recognition of Exotic Diseases of State Veterinarians: Livestock. Most states also require that reactors be marked if they remain within the Acknowledgements state. Asymptomatic carriers often give PhD, Veterinary Specialist from the Center for Food birth to uninfected foals. Transmission and clinical evaluation of an equine of Equus caballus and Equus asinus to infection with two infectious anemia herd and their offspring over a 13-year pathogenic strains of equine infectious anemia virus. Your horse, equine infectious anemia and the law Inspection Service, Veterinary Services, Centers for [online]. An outbreak of equine infectious anaemia in Ireland during 2006: the modes *Link is defunct of transmission and spread in the Kildare cluster. Interstate movement of equine infectious anemia reactors and approval of laboratories, diagnostic facilities, and research facilities. Urologists are usually the specialists who are initially responsible for assessing the male partner when male infertility is suspected. However, infertility can be a multifactorial condition requiring multidisciplinary involvement. The Male Infertility Guidelines Panel consists of urologists and endocrinologists with special training in andrology and experience in the diagnosis and treatment of male infertility. MedLine, Embase, and Cochrane databases were searched to identify original and review articles. All articles published between January 2010 (previous update) and November 2011 were considered for review. The expert panel reviewed these records and selected articles with the highest evidence. Grading aims to provide transparency between the underlying evidence and the recommendation given. When recommendations are graded, the link between the level of evidence and grade of recommendation is not directly linear. Absence of high-level evidence does not necessarily preclude a grade A recommendation, if there is overwhelming clinical experience and consensus. There may be exceptions where corroborating studies cannot be performed, perhaps for ethical or other reasons, and unequivocal recommendations are considered helpful. The quality of the underlying scientific evidence must be balanced against benefits and burdens, values and preferences and cost when a grade is assigned (2-4). For this 2012 publication all sections have been revised and limited changes were implemented. All texts can be viewed and downloaded for personal use at the society website. In 50% of involuntarily childless couples, a male infertility associated factor is found together with abnormal semen parameters. A fertile partner may compensate for the fertility problem of the man and thus infertility usually becomes manifest if both partners have reduced fertility (5). In 30-40% of cases, no male infertility associated factor is found (idiopathic male infertility). These men present with no previous history of fertility problems and have normal findings on physical examination and endocrine laboratory testing. However, semen analysis reveals a decreased number of spermatozoa (oligozoospermia), decreased sperm motility (asthenozoospermia), and many abnormal forms of sperm (teratozoospermia). Idiopathic male infertility may be explained by several factors, including endocrine disruption as a result of environmental pollution, reactive oxygen species, or genetic abnormalities. The cumulative pregnancy rate in infertile couples with 2 years of follow-up and oligozoospermia as the primary cause of infertility is 27% (7). Female age is the most important single variable influencing outcome in assisted reproduction (8). Compared to a woman aged 25 years, the fertility potential of a woman aged 35 years is reduced to 50%, to 25% at 38 years, and less than 5% at over 40 years. C In the diagnosis and management of male subfertility, the fertility status of the female partner must B also be considered, as this might determine the final outcome (8). The urologist/andrologist should examine any male with fertility problems for urogenital abnormalities. A diagnosis is mandatory to start appropriate therapy (drugs, surgery, assisted reproduction) (5). Produced by Bob Phillips, Chris Ball, Dave Sackett, Doug Badenoch, Sharon Straus, Brian Haynes, Martin Dawes since November 1998. A comprehensive andrological examination is indicated if semen analysis shows abnormalities compared with reference values (Table 4). As important treatment decisions are based on the results of semen analysis, it is essential that the complete laboratory work-up is standardised. Table 4: Lower reference limits (5th centiles and their 95% confidence intervals) for semen characteristics Parameter Lower reference limit (range) Semen volume (mL) 1. If the results are abnormal in at least two tests, further andrological investigation is indicated. As in azoospermia, in extreme cases of oligozoospermia (< 1 million spermatozoa/mL), there is an increased incidence of obstruction of the male genital tract and genetic abnormalities. A recommended method is semen centrifugation at 3000 g for 15 minutes and a thorough microscopic examination by phase contrast optics at x200 magnification of the pellet. Preliminary data indicate a stronger correlation between low inhibin B level and spermatogenic damage (6). Microsurgical testicular sperm extraction may increase retrieval rates, even though comparative studies are not yet available (14-16). After opening the testis, tubules exhibiting larger diameter are excised using micro-scissors or forceps. Then, tubules are minced using mechanical or enzymatic digestion to facilitate sperm search (17). Testicular biopsy is the best procedure to define the histological diagnosis and the possibility of finding sperm. Men who are candidates for sperm retrieval must receive appropriate genetic advice. Testicular sperm extraction: impact to testicular histology on outcome, number of biopsies to be performed and optional time for repetition. Sperm retrieval for intra-cytoplasmic sperm injection in nonobstructive azoospermia. How successful is repeat testicular sperm extraction in patients with azoospermia Is one testicular specimen sufficient for quantitative evaluation of spermatogenesis Predictors of sperm recovery and azoospermia relapse in men with nonobstructive azoospermia after varicocele repair. Testicular sperm extraction: microdissection improves sperm yield with minimal tissue excision. Conventional versus microdissection testicular sperm extraction for non obstructive azoospermia. Outcome of intracytoplasmic sperm injection in azoospermic patients: stressing the liaison between the urologist and reproductive medicine specialist. Chromosomal abnormalities in embryos derived from testicular sperm extraction tese) in men with non-obstructive azoospermia.
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These patients tend to have greatest difficulty with divergent abstract reasoning tasks compared to relatively intact convergent reasoning anxiety erectile dysfunction generic effexor xr 150 mg overnight delivery. The conceptual difference between the two being the increased demand in divergent reasoning tasks to escape a single anxiety vertigo order effexor xr 150mg line, sometimes concrete (right/wrong) answer of convergent reasoning and attempt to enact creative anxiety bc 150mg effexor xr, multi-solution divergent solutions to a stated problem anxiety jelly legs order cheapest effexor xr and effexor xr. Verbally anxiety from alcohol purchase 150 mg effexor xr amex, patients can be asked to list the similarities of a set of things and then be asked to list their dif ferences zantac anxiety symptoms cheap effexor xr 150mg on line. Both the similarities and differences should demonstrate an under standing of multiple ways the two are similar and different. The examiner can prompt for the other ways the objects are similar or different but should not provide answers. Examples that can be used may include a dog and a wolf, a shark and a whale, a house of representatives and a senate, a house and a hotel (see Table 10. Responses should include recognition that these may have multiple causes and that they can be systematically ruled out but may ultimately require seeking additional help (see Table 10. Responses are not judged for the quality of the object as a substitute for another purpose or object, but rather for the presence of divergent abstraction and creativity. For example, a brick might be used as a paper weight, a door stop, a water-saving (displacement device) device in a commode tank, or an exercise device, etc (see Table 10. In the latter task, patients could draw a sequence, two Xs, a series of crosses, or a series of triangles with intersecting lines. Again, the quality of the designs should not be judged, but rather the diversity and number. Characterization of the decision-making deficit of patients with ventromedial prefrontal cortex lesions. Hemispheric encoding/ retrieval asymmetry in episodic memory: Positron emission tomography findings. Automatic and intentional brain responses during evaluation of trustworthiness of faces. Schoenberg Abstract Emotions and mood play a central role both in the outcome and the management of neurologic illness. The importance is magnified when faced with differentiating between a primary emotional etiology for presenting complaints or neurocognitive symptoms and the possibility of emotional symptoms being the result of a neurologic injury, or a process of dysfunction as a result of an attempt to adjust to changes produced from neurologic injury or neurodegenerative process. Differentiating among these three possibilities is not easy and depends as much on eliciting a detailed psychiatric history as it does on knowledge of the possible emotional sequelae of neurologic injury and anatomical correlates of emotional functioning. This manual represents the currently accepted diagnostic criteria for men tal disorders as outlined by the American Psychiatric Association and the American Psychological Association. While there is no shortage of controversy regarding the criteria for diagnosing mental illness, this system represents the best effort thus far to provide behavioral and objective criteria to a nosologically difficult area of medicine. Each of these axes will be reviewed with an emphasis on neurologic disease and commonly associated emotional sequelae. Multiaxial Diagnostic System Axis I Axis I records the primary diagnosis of a mental disorder that is the focus of treat ment. With the exception of personality disorders and mental retardation, all men tal disorders are recorded on Axis I. This axis may contain as many primary diagnoses as are appropriate for the focus of treatment for the individual. While this table is not exhaustive, it covers the major categories which are the primary Axis I diagnoses. The second most frequent categories seen in neurologically and medically compromised populations are mood disorders (particularly depression) and anxiety disorders (particularly post-traumatic stress disorder, acute stress dis order and generalized anxiety disorder). This classification schema often has diagnoses which are more appropriate for patients with neurologic diseases for which emotional disorders are a direct result or secondary diagnosis. Examples include schizophrenia and psychoses associated with injury or illness Mood disorders Includes disorders like depression and bipolar disorders. These disorders are marked either by negative mood or by the fluctuation of mood from euphoric to dysphoric Anxiety disorders Includes generalized anxiety disorder, post-traumatic stress disorder, agoraphobia, obsessive-compulsive disorder, and simple phobias Somatoform disorders Includes disorders which are marked by an excessive concern of physical dysfunction for which physical explanations have been ruled out as the primary cause. These disorders include hypochondriasis, somatoform disorder, somatoform pain disorder, and conversion disorder. Factitious disorders Includes disorders in which the primary symptoms are produced consciously by the patient for secondary gain. While personality disorders can be a primary focus of treatment, they are not typically the focus of treatment for neuropsychologist or neurologists. Personality disorders are perva sive, long-standing and enduring personality traits which produce marked impair ment for the individual in social, interpersonal, occupational or cultural functioning. Personality disorders are not of acute onset or associated with injury or neurologic compromise. If personality or behavioral changes are associated with a neurologic injury or etiology, these changes would be listed under Axis I in the category mental dis order due to general medical condition. While individuals with neurologic injuries can display dysfunction associated with personality, the changes in personality caused by an neurologic injuries are most commonly an exacerbation of a pre-existing character istic which now begins to produce impairment in social, occupational of interper sonal functioning. For example, someone who premorbidly is cautious or distrustful of the motives of others, may exhibit frank paranoia or delusional paranoia after a brain injury or over the course of decline in a neurodegenerative disorder. For example, an acute eruption of acne vulgaris may be a contributing or exacerbating factor in a diagnosis of major depression listed in Axis I. Many conditions in neurology and neuropsychology pertain to this category and should be listed as contributing factors in the Axis I diagnosis. Differentiating between which is primary and which is secondary is often irrelevant for the treatment of both diagnoses. The decision as to primary diagnosis is often made clinically by history, assessing the temporal sequence of which presented first historically for the patient. Rather, it emphasizes the need for multiple simultaneous treatments to prevent the potential exacerbation of one condition by the other. These often are associated with current stressors experienced by the individual in their psychosocial functioning or environment. Any issue which is related to the cause, perpetuation or exacerbation of the primary diagnosis is listed and relevant to the treatment and management of the primary diagnosis. This takes into consideration the physical health and functional capacity of the person both cur rently and over the last 12 months. Cannot make decisions for self Mood/Emotions and Neurologic Illness Increased rates of psychiatric symptoms/emotional problems are associated with any acute or chronic medical illness (see Hales and Yudofsky 2008; Lezak et al. This biopsychosocial model is the predomi nate theoretical framework for understanding psychiatric symptoms/emotional problems at this time. Within this model, the psychosocial component reflects the process of adjustment to the changes produced with illness, frequently results in increased stress and elicits coping strategies which are not always adaptive to the patient within his/her environment and disease state. In examining the impact of an illness on mood, behavior and emotions, two factors are paramount. The first is an estimation of change in mood, behavior or emotions from premorbid functioning. The second issue involves examining the areas of the brain which are involved and analyzing the current and future anticipated changes in behavior and emotions. The issue of change is critical in evaluating the impact of illness on emotional and behavioral functioning. It is important to get an accurate and reliable history of past emotional functioning from which to judge change in current emotional or behavioral functioning. This is crucial in differentiating a re-emergence or exacer bation of a pre-existing condition from a new manifestation of emotional symptoms or behaviors. While this may seem trivial at first glance, it is critical for determining the etiology for the psychiatric symptom/emotional problems as well as predicting the course and outcome of emotional and behavioral deficits associated with neu rological dysfunction. As an example, the onset of visual hallucinations following a head injury of an adult patient is more likely to trigger a variety of questions and laboratory tests designed to assess for seizures or structural lesions than would be 256 J. Schoenberg the onset of visual hallucinations in an elderly patient with a history of schizophrenia. The predictive value of obtaining a history is highlighted by consistent data establishing that individuals with extensive histories of recurrent emotional and behavioral deficits are both at much greater risk for subsequent development of such symptoms post injury or illness as well as at increased risk for poorer out comes from treatment interventions than are individuals with no prior psychiatric history. Indeed, individuals with no psychiatric history are at lower risk for devel oping emotional and behavioral abnormalities following onset of neurological dysfunction or disease and have better remission rates with treatment. In addition to obtaining a history of previously diagnosed emotional or behavioral disorders, it is important to obtain a reliable description of personality characteristics as these may be exacerbated to pathological levels following an injury or illness. An assessment of these characteristics will give indications of possible areas of con cern in the development of current and future symptoms. It is also important to gain an understanding of the typical pre-injury coping skills/mechanisms of the individual, as these may be exacerbated following an injury and become a source of needed intervention or treatment. These characteristics should be explored both in regard to the past and also as they pertain to any post-injury changes. Both acute and chronic neurologic injuries/illnesses can produce emotional/behavioral changes in patients. Particularly, injuries to the frontal lobes and those affecting the cortico bulbar tracts bilaterally produce striking emotional and behavioral changes. Injuries to the orbital-frontal region which involves the inferior medial and anterior frontal lobes produce behavioral changes, which have been termed the orbital-frontal personality syndrome (see Chapter 10 for elaboration). The emotional and behavioral symptoms involved include disinhibition, impulsivity, emotional volatility and socially inappropriate behavior. These individuals are often seen as disregarding the feelings or rights of others and are helpless in stopping or avoiding what they often readily verbal ize as inappropriate behavior. This syndrome can be caused by anything that affects the orbital-frontal region, but is most frequently associated with traumatic brain inju ries or ruptures of aneurysms involving the anterior communicating artery. In addition, behavioral syndromes associated with dysfunction of the dorsal-lateral frontal cortex often results in producing decreased emotional responsiveness, poor awareness of deficits and decreased motivation or spontaneous behavior. These indi viduals are referred to as having a Dorso-Lateral-Frontal Lobe Syndrome (also termed Dysexecutive syndrome; see Chap. While these individuals are generally emotionally unresponsive, they are often capable of exaggerated emotional responses when they become emotionally stimulated and display difficulty in regulating or redirecting their emotional response. These changes can be seen with any etiology affecting the lateral and superior frontal convexities, but are most frequently associated with occlusive strokes involving the anterior branch of the middle cerebral artery or traumatic brain injuries. Interestingly, these behavioral/emotional syndromes often do not result in much change in cognitive functioning to the casual observer. Cognitive deficits are most frequently found in sustained attention, alternating attention, processing speed, and novel reasoning and problem-solving tasks requiring convergent or divergent reasoning. They do not often exhibit frank deficits in intelligence, language, visuo spatial processing, or memory when attentional variability effects are considered. A rare but interesting emotional phenomenon is pseudobulbar affect or affective incontinence (see also Chap. This arises when there are bilateral lesions involving the cortico-bulbar tracts and results in the patient displaying an affective response. These individuals often display inappropriate or grossly exaggerated emotional affective 258 J. Schoenberg behaviors such as hysterical laughter or uncontrollable crying, but upon inquiry report no subjective appreciation of happiness or sadness. While this phenomenon is rarely seen in post-acute populations, there are several documented cases of persistent syn drome symptoms for years after injury. The phenomenon is rare and occurs most fre quently in individuals with a history of neurologic injury to one cortico-bulbar tract and who then suffer an acute injury that involves the contralateral cortico-bulbar tract. Exaggerated negative dysphoria (crying) is seen much more frequently than euphoria (laughter). Again, this phenomenon is rare and typically remits or greatly improves in a few months following the injury. Differentiation from depression or psychosis can often be made by both distracting the patient on to a neutral topic (What color are my shoes Finally, injuries to the right hemisphere can produce deficits in expressive and receptive prosody, which can have profound effects on emotional functioning.
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