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Sleep disorders in geriatric patients.

The elderly have more organic sleep problems disturbing sleep and contributing to insomnia than younger individuals. The most common disorders afflicting the elderly are obstructive sleep apnea, restless legs syndrome, and nocturnal myoclonus. Poor sleep habits often aggravate or contribute to the ongoing difficulty with sleeping. In the depressed elderly, characteristic EEG changes occur that may help distinguish major depression from pseudodementia; however, it should be considered that pseudodementia may be a harbinger of primary dementia. A careful sleep history and often evaluation by polysomnography are central to the management of sleep problems in the elderly. In conjunction with treatment of any underlying organic sleep disorders, brief administration of short-acting benzodiazepine sedatives for sleep onset insomnia or rapid-acting intermediate half-life benzodiazepines for sleep maintenance insomnia can be quite helpful in the elderly, especially if behavioral techniques also are employed. Elimination of medications, alcohol, and caffeine, which disturb sleep, is also an important part of the treatment approach.

Aged↗

Restless legs syndrome and periodic limb movements of sleep: fact, fad, and fiction.

Restless legs syndrome (RLS) and periodic limb movements of sleep (PLMS) are common disorders seen in sleep disorder centers. Although RLS in universally thought to cause daytime sleepiness, the role of PLMS in causing sleepiness (or any symptom!) has been more controversial. Recent publications have show that PLMS do not cause either subjective or objective sleepiness, but may be a marker for respiratory effort related arousals. In regards to patients with end-stage renal disease, PLMS may mark mortality. In this same group of patients, gabapentin and normalization of hematocrit may be effective therapies for RLS/PLMS. Melatonin may prove to be an alternative therapy for PLMS.

Anemia, Iron-Deficiency↗

Objective and subjective sleep disturbances in patients with systemic lupus erythematosus.

OBJECTIVE: To assess objective and subjective evidence of sleep disorders in patients with systemic lupus erythematosus (SLE) and to examine correlations between parameters of lupus activity, depression, and sleep disturbances. METHODS: Fourteen SLE patients and 11 normal control subjects of similar age underwent all-night polysomnography on 3 consecutive nights. The patients and controls were also evaluated for daytime sleepiness by the Multiple Sleep Latency Test and completed a sleep disorders questionnaire and the Beck Depression Inventory. RESULTS: The polysomnographic data showed that sleep in SLE patients was characterized by respiratory and movement disorders. These intrinsic primary sleep disorders are related to the symptom of restless, poor sleep at night. Lupus patients were more sleepy during the day, and their sleepiness was related to sleep fragmentation, with more arousals and stage transitions than the control group. Disease activity was associated with decreases in sleep efficiency and delta sleep and with increases in sleep fragmentation. Depression was not correlated with the activity of the disease. CONCLUSION: There is an enhanced presence of sleep disorders in patients with SLE. The most frequent primary sleep disorders are respiratory and movement disorders.

Adult↗

Partners of patients with sleep apnoea/hypopnoea syndrome: effect of CPAP treatment on sleep quality and quality of life.

BACKGROUND: The sleep apnoea/hypopnoea syndrome (SAHS) causes snoring, apnoeas, and restlessness during sleep which partners frequently complain about. A study was undertaken to determine the impact on partners of SAHS and of treatment of the patient with continuous positive airway pressure (CPAP). METHODS: Forty nine partners and patients with SAHS booked for CPAP treatment completed in house and validated questionnaires (Pittsburgh sleep quality index, Short Form 36 self-reported health status) before the patient started treatment. Twenty three couples in whom the index SAHS patient had no driving problems were recruited to a randomised crossover trial with 1 month limbs of CPAP and placebo capsule. At the end of each limb the partners' sleep was monitored by home polysomnography (PSG) and questionnaires were completed. RESULTS: Before treatment partners frequently reported moderate to severe disturbance from patient snoring/apnoeas/restlessness and had poor sleep quality and self-reported health status. In the crossover study (22 completed) the partners' objective sleep quality did not differ between CPAP and placebo, but they reported benefit from treatment of the patients with CPAP in subjective sleep quality (p=0.05) and disturbance to sleep (p=0.03). The reported change in partners' sleep quality between pre-study and following CPAP treatment correlated positively with CPAP use (r=0.5, p=0.01). CONCLUSIONS: Partners of patients with SAHS have poor sleep quality and self-reported health status but only subjective sleep quality benefits from treatment of the patient with CPAP.

Cross-Over Studies↗

Sleep disorders.

Patients with sleep disorders present with a variety of complaints including excessive daytime sleepiness, daytime spells, inability to sleep, uncomfortable sensation in the extremities, and unusual night time behaviors. This article provides eight vignettes on patients with sleep disorders including narcolepsy, idiopathic hypersomnia, obstructive sleep apnea, restless legs syndrome, and rapid eye movement behavior disorder. The discussion provides data regarding the epidemiology, pathophysiology, and diagnostic approach for these conditions. The various treatment options for these sleep disorders are also identified.

Adjuvants, Anesthesia↗

Predictors of outcome following venlafaxine extended-release treatment of DSM-IV generalized anxiety disorder: a pooled analysis of short- and long-term studies.

This pooled analysis evaluated potential predictive abilities of baseline demographic factors, psychiatric history, and DSM-IV diagnostic criteria for short- and long-term outcome after treatment with venlafaxine extended release (XR) or placebo in patients with generalized anxiety disorder (GAD). Pooled data from 1,839 patients in five placebo-controlled studies of venlafaxine XR for GAD were analyzed by logistic regression. Odds ratios (ORs) were used to quantify pretreatment factors' abilities to predict response (50% reduction, baseline Hamilton Rating Scale for Anxiety [HAM-A] severity) and remission (total HAM-A score </=7) following venlafaxine XR or placebo treatment. All analyzed factors showed statistically significant outcome associations after 8 or 24 weeks of treatment, or both, in placebo- or venlafaxine-XR-treated patients or both. Substance abuse history, DSM-IV diagnostic criteria of sleep disturbances, difficulty concentrating, and restlessness had the strongest associations with outcome. Sleep disturbances predicted significant positive response in both groups, but more so in the placebo group. Restlessness consistently predicted poor response and lack of remission with either treatment; difficulty concentrating predicted short-term remission with placebo only. Substance abuse history predicted positive outcomes with placebo only. Sex, age, depression history, panic disorder history, prior benzodiazepine and nonbenzodiazepine use, being easily fatigued, muscle tension, and irritability were modestly outcome-predictive or showed treatment condition interactions. In the largest pooled analysis to date, pretreatment factors were associated with treatment outcome in patients with GAD receiving venlafaxine XR or placebo. The strongest trends emerged for history of substance abuse or dependence and symptoms of restlessness, sleep disturbance, and difficulty concentrating.

Adolescent↗

Restless legs syndrome and quality of sleep in type 2 diabetes.

OBJECTIVE: To investigate the presence of restless legs syndrome (RLS) and the quality of sleep in a population of type 2 diabetic patients. RESEARCH DESIGN AND METHODS: The study population was composed of 100 consecutive patients regularly attending a diabetes clinic at the University Hospital of the Federal University of Ceará. The subjects' quality of sleep was assessed by the Pittsburgh Sleep Quality Index, and excessive daytime sleepiness (EDS) was measured by the Epworth Sleepiness Scale. The RLS was diagnosed using the four minimum criteria defined by the International Restless Legs Syndrome Study Group. Other relevant clinical and laboratory parameters were obtained by interview and chart review. RESULTS: RLS was found in 27% of patients. Poor sleep quality was present in 45% of cases and was associated with age (P = 0.04), peripheral neuropathy (P = 0.001), and RLS (P = 0.000). EDS was found in 26% of patients. Logistic regression analysis revealed an association between RLS and peripheral neuropathy (odds ratio 12.85 [95% CI 2.83-58.40], P = 0.001). CONCLUSIONS: RLS is common in type 2 diabetic patients and can be a major cause of sleep disruption in these patients.

Adult↗

The clinical significance of disturbed sleep and the use of hypnotics.

This article discusses the causes of sleeplessness and its long-term management. Sleep may be repeatedly disturbed by pain, dyspnoea, micturition, or restlessness. The sleep patterns of the diseases which produce these symptoms are given, with an explanation in physiological terms of why they disturb sleep. A knowledge of these sleep patterns provides a valuable aid to diagnosis. It is concluded that there is only one condition, senility leading to senile dementia, for which long-term night sedation is justified.

Aged↗

Dopaminergic therapy in children with restless legs/periodic limb movements in sleep and ADHD. Dopaminergic Therapy Study Group.

The long-term effects of monotherapy with levodopa or the dopamine agonist pergolide on the motor/sensory, behavioral, and cognitive variables in seven children with restless legs syndrome/periodic limb movements in sleep (RLS/PLMS) and attention-deficit-hyperactivity disorder (ADHD) were investigated. Five of the seven children had previously been treated with stimulants that had either been determined to be ineffective or to have intolerable side effects. Dopaminergic therapy improved the symptoms of RLS and reduced the number of PLMS per hour of sleep (P = 0.018) and associated arousals (P = 0.042) for the entire group. After treatment, three children no longer met the criteria for ADHD, and three reverted to normal on the Test of Variable Attention. ADHD improved in all seven as measured by the Connors parent rating scale (P<0.04) and the Child Behavior Checklist (P<0.05). A significant improvement also occurred in the visual, but not verbal, memory scores on the Wide Range Assessment of Memory and Learning (P<0.001). Five of seven children continue on dopaminergic therapy 3 years after treatment initiation, with good response. We postulate that the improvement in ADHD may be the result of the amelioration of RLS/PLMS and its associated sleep disturbance. Alternatively, ADHD and RLS/PLMS may share a common dopaminergic deficit.

Adolescent↗

Restless legs syndrome in the older adult: diagnosis and management.

Restless legs syndrome (RLS) is common in the elderly, with an estimated prevalence of 10 to 35% in individuals over 65 years of age. RLS is characterised by paraesthesias and dysaesthesias of the legs, typically occurring in the evening. The symptoms occur at rest and result in motor restlessness; movement often temporarily relieves the symptoms. Patients with poorly controlled RLS may develop related problems including insomnia (due to sleep-onset restlessness or periodic limb movements or related sleep fragmentation) and depression. RLS can be a primary disorder that develops in the young and includes familial cases. Secondary RLS occurs in association with iron-deficiency anaemia, uraemia and polyneuropathies. Typically, RLS is misdiagnosed or undiagnosed for years. In the elderly, both primary and secondary types of the disorder are common. It is thought that RLS represents lower CNS levels of, or reduced responsiveness to, dopamine. The symptoms improve with dopaminergic therapy. Ergotamine dopamine-receptor agonists such as pergolide, and the non-ergotamine dopamine-receptor agonists pramipexole and ropinirole, are becoming more commonly used to treat RLS. The dopamine precursor levodopa, in combination with carbidopa, is another effective therapeutic agent. An advantage of levodopa is lower cost than non-ergotamine and ergotamine dopamine-receptor agonists. However, the adverse effect of symptom augmentation appears to develop more frequently with levodopa than dopamine-receptor agonists; therefore, levodopa may currently be used somewhat less often as first-line therapy. Patients with painful symptoms may respond favourably to the anticonvulsants gabapentin and carbamazepine. Opioids and hypnosedatives are helpful in selected patients; however, these agents may have troubling adverse effects in the elderly. Correction of iron deficiency improves symptoms in patients with low ferritin levels. Lifestyle modification may also be helpful. Therapy is directed at symptoms, and most symptomatic patients benefit from treatment. It is important to consider RLS in the differential diagnosis of any patient with paraesthesias of the limbs.

Aged↗

Circadian rest-activity rhythms in demented and nondemented older community residents and their caregivers.

OBJECTIVE: Disruptive nocturnal behaviors (DNBs) of older people often threaten the caregiving arrangements on which their community tenure depends. Dementing disorders are especially prone to result in disrupted sleep and agitated behaviors ("sundowning"). The objective here was to develop an objective correlate of DNBs, by which their severity and effects on caregivers can be measured. DESIGN: Quantitative comparison of subjective sleep and motor activity patterns in older people and their caregivers. It was hypothesized that older people with reported DNBs would be more motorically active at night than their caregivers. SETTING: Subjects' homes. PARTICIPANTS: Twenty-five demented and 18 nondemented older day-care participants and their paired caregivers. MEASUREMENTS: Older subjects and caregivers simultaneously kept daily sleep logs and recorded wrist motor activity every .5 minute for 9 days. A novel method was devised to identify and exclude from analysis periods when the activity monitor was not being worn. Such periods were common. Activity data were analyzed by computing hourly means and by fitting cosine models by least squares. RESULTS: Demented older people were not significantly more active at night than their caregivers, though group differences varied by time of night. They were significantly less active in the daytime than were their caregivers. Nondemented older people were significantly more active at night than their caregivers and were as active by day as their caregivers. The caregivers of demented and nondemented older people had similar rest-activity patterns. The mean amplitudes of cosine models were smaller in the older adults. Acrophases (peaks) fell between 2 and 3 pm and did not differ significantly among the groups. CONCLUSIONS: As a result of increased nighttime motor activity and decreased daytime activity, rest-activity rhythms were flatter in older adults than in caregivers. This was not explained fully by age and does not necessarily imply that the output of a circadian pacemaker was low. Decreased daytime activity may have resulted from deficient physical stimulation or frailty. Frailty may also explain why nighttime activity was not more elevated in the demented older people. Increased nighttime activity is probably explained by depression, sleep-schedule disturbances, restless legs, or other sleep disorders. Judging by their shared variations of activity, caregivers interacted mainly with the demented older people at bedtime and at rising time in the morning.

Aged↗

[Sleep disorders and dementia].

A clinically relevant sleep-wake disturbance is found in up to half the patients with dementia, and the sundowning agitation is a common cause of institutionalisation of demented geriatric patients. The circadian rhythm of demented patients is levelled off with increased daytime sleep and disrupted night sleep. Particularly in vascular dementia, Korsakow syndrome, Parkinson's disease, and depression the alteration of sleep architecture may be pronounced, whereas in Alzheimer's disease prominent hypersomnolence or insomnia is typically only found in later stages of the diseases. Greatly increased daytime sleepiness or striking insomnia at the very beginning of suspected dementia should thus prompt the search for other, possibly treatable causes of dementia. Neuropathological and neurophysiological studies support the hypothesis of a deteriorated hypothalamic suprachiasmatic nucleus (harbouring the biological clock) as a cause for the deranged circadian sleep-wake system in dementia. Management of sundowning behaviour includes restriction of daytime sleep, exposure to bright lights, and social interaction schedules during the day. The benzodiazepines and analogues usually not being sufficiently effectual, low doses of mild neuroleptics are often needed. Whether recent reports on efficacy of melatonin in elderly insomniacs also apply to demented patients is yet uncertain. The careful search and treatment of possible extracerebral physiologic factors causing reversible hypersomnia or insomnia is an important requisite. Polysomnographic studies are needed to recognise treatable sleep disturbance which could deteriorate or mimic dementia and sundowning. Particularly, a sleep-apnea-hypopnea syndrome must be searched for at the beginning of a suspected dementia, when successful treatment is still possible. Sleep studies should also identify periodic leg movements of sleep with restless legs and/or increased daytime sleepiness, and hyperkinetic parasomnias such as REM sleep behaviour disorder which may complicate or imitate sundowning.

Aged↗

Disorders of sleep and wake in patients after subarachnoid hemorrhage.

BACKGROUND AND PURPOSE: To determine the frequency and severity of disorders of sleep and wake and their relation to the quality of life (QoL) in patients who have survived an episode of subarachnoid hemorrhage (SAH). METHODS: In a prospectively collected, consecutive series of 89 patients, 83 patients completed validated and frequently used questionnaires for the assessment of disorders of sleep and wake (SDL and Epworth Sleepiness Score) at least 1 year (range, 1 to 3.4 years) after the SAH. We used the modified Rankin scale for functional outcome and Short Form 36 (SF-36) to assess QoL. We related the occurrence of severe problems with sleep (insomnia or excessive daytime sleepiness score or both > or =3 on SDL) to functional outcome and to the QoL scores and compared the latter scores with data from a Dutch reference population. In a subset of 20 patients with severe problems with sleep, we performed polysomnographic and actigraphic studies at home during 48 hours. RESULTS: Twenty eight (34%) patients had severe problems with sleep. Frequently reported problems are initiating (25%) or maintaining (31%) sleep, difficulty returning (28%) asleep, tiredness (31%), and excessive sleepiness during the day (6%). QoL was considerably reduced in patients with severe problems with sleep. During the sleep monitoring studies, severe sleep fragmentation, sleep apnea, restless legs syndrome/periodic limb movement disorder, or a combination of these disorders of sleep and wake occurred in 19 of 20 patients. CONCLUSIONS: Many patients who have survived an episode of SAH have disorders of sleep and wake, which are related to the QoL.

Electromyography↗

Sleep disorders in the elderly.

Geriatric patients often complain about sleep disorders, but many of the typical sleep disturbances in the elderly are thought to be normal consequences of old age and go underdiagnosed and undertreated. Sleep disorders are estimated to affect nearly 50% of older persons. Most frequently the elderly suffer from Sleep Disordered Breathing (SDB), Periodic Limb Movements in Sleep (PLMS), Restless Legs Syndrome (RLS), morning headaches, circadian rhythm disorders, excessive daytime sleepiness, Obstructive Sleep Apnea Syndrome (OSAS), and insomnia. This review describes all these common sleep problems in the older population and their possible treatment.

Age of Onset↗

Diagnosis and therapy of sleep apnea.

The presenting symptom complex, diagnostic features, and therapeutic alternatives for obstructive and central sleep apnea are discussed in relation to two illustrative patients. Heavy snoring and restlessness during sleep in an obese individual, usually a male, may indicate obstructive apnea. Daytime hypersomnolence, intellectual deterioration, mental depression, impotence, cardiac arrhythmias, cor pulmonale, systemic hypertension, and erythrocytosis are the most common complications. Tracheostomy, the classic form of therapy, can be replaced by pharmacologic intervention in most patients. The clinical presentation of central apnea is less dramatic, but neurological and cardiac complications can occur. Therapy is less well established for this entity. Knowledge of the increased incidence of these disorders and awareness of more subtle complications indicate that sleep apnea should be placed in the differential diagnosis of pulmonary and systemic hypertension, hypersomnolence states, mental deterioration, psychiatric illness, and even insomnia.

Antidepressive Agents, Tricyclic↗

Women's health issues with fibromyalgia syndrome.

BACKGROUND: Fibromyalgia syndrome (FMS) involves multiple sensory, somatic, and cognitive symptoms that are bound to affect or be affected by physical and mental health status and behavioral components of daily life. METHODS: From a telephone survey of 442 women with and 205 women without FMS as volunteers, data were compared on (1) general health status, (2) reproductive and sleep-related diagnoses, and (3) lifestyle health behaviors. RESULTS: All multiple or logistics regression analyses for group differences were controlled for age, body mass index (BMI), race, employment status, marital status, having a college degree, low household income, and having ever been diagnosed with depression, with a Bonferroni p value correction for multiple indicators. Accordingly, FMS negatively impacted both perceived physical and mental health status, although relatively more so for physical (p < 0.017). Women with FMS were more likely to have had reproductive health or sleep-related diagnoses, including premenstrual syndrome, dysmenorrhea, breast cysts, bladder cystitis, sleep apnea, restless leg syndrome, and abnormal leg movements (p < 0.0125). They were calculated to use less than half as many calories per week as control women (689 +/- 1293 vs. 1499 +/- 1584 kcal/week, p < 0.05) and had more sleep pattern difficulties (p < 0.0125), more negative changes in sexual function (greater odds for 5 of 10 indicators at p < 0.005), and lower alcohol use (odds ratio = 0.39, p < 0.05). CONCLUSIONS: Patients with FMS deserve careful assessment for reproductive conditions and sleep-related functional disorders. Besides more research into mechanisms underlying symptoms, intervention testing specifically to alleviate sleep problems, low physical activity levels, and sexual dysfunction should be paramount.

Activities of Daily Living↗