失眠症患者的第一晚效应及其相关因素分析

目的探讨失眠症患者第一晚效应（ｆｉｒｓｔ ｎｉｇｈｔ ｅｆｆｅｃｔ,ＦＮＥ）我多导睡眠图表现及其相关因素。方法对２５例非器质性失眠症患者进行了连续两液的多导睡眠图记录和一系列量表的评定。结果第一晚的多导睡眠图显示,失眠症患者的睡眠总时间减少,睡眠潜伏延长,ＲＥＭ睡眠的潜伏期延长、时间缩短、百分比减少;完全正常（或逆转）的ＦＮＥ较少,正常ＦＮＥ较逆转ＦＮＥ更常见。患者的主观评价与上述改变基本一致,发     

Effect of Long-Term Benzodiazepines for Chronic Insomnia on Cognitive Function and Waking Electroencephalography: A Case-Control Study

Objective The relationship between benzodiazepine use and cognitive decline in insomnia patients has been reported, but still conflicting. Thus, we tried to determine whether long-term exposure of benzodiazepine might be associated with changes of cognition and electroencephalography (EEG) findings in patients with chronic insomnia. Methods Insomniacs using benzodiazepines (n=29), drug-free insomniacs (n=27), and age- and sex-matched controls (n=28) were recruited. Neurocognitive function tested with Korean version of the Consortium to Establish a Registry for Alzheimer’s Disease Assessment Packet Neuropsychological Assessment Battery, quantitative EEG in awake state, and information of benzodiazepine usage were obtained. Results Drug-free insomniacs reported more severe symptoms than insomniacs using benzodiazepine (p<0.001). Insomniacs using benzodiazepine showed a decrease of executive function in Trail Making Test A than drug-free insomniacs and controls (0.73±0.66 vs. 1.27±0.38 vs. 1.09±0.47, p<0.001) and in categorical fluency than drug-free insomniacs (-0.01±0.99 vs. 1.26±0.97, p=0.002). However, such decrease of executive function was not proportional to daily dose or cumulative dose of benzodiazepine. The EEG was not significantly different between insomniacs using benzodiazepine and drug-free insomniacs, while EEG of insomniacs showed low relative theta power in frontal and parietal regions but high relative beta power in frontal region than that of controls. Conclusion Benzodiazepine users with chronic insomnia showed an impairment of executive function compared to drug-free insomniacs and controls although they showed relatively decreased severity of insomnia symptoms. Chronic insomniacs showed a hyper-arousal manifestation in front-parietal region of brain regardless of benzodiazepine exposure.     

Efficacy of L-846 in patients with insomnia:Evaluation by polysomnography

Abstract The effects of L-846, an ultra-short-acting pyrazolopyrimidine hypnotic, on sleep were studied in nine insomniacs and two neurotic patients with insomnia. The patients were randomly assigned to receive 5 mg ( n = 6) or 10 mg ( n = 5) L-846. The study schedule comprised of one adaptation night, two baseline nights, three drug nights, and two withdrawal nights. Sleep latency and slow wave sleep (SWS) latency was largely shortened and %SWS increased in the early phase of sleep. No clear evidence of rebound insomnia was noted.     

Family studies in insomnia

OBJECTIVE: Several predisposing factors to insomnia have been hypothesized, including a familial component; however, few studies have focused on this topic. The aim of this study is to evaluate the prevalence of insomnia among first-degree relatives of chronic insomniacs and to compare the symptoms between sporadic and familial insomnia. METHODS: Two hundred fifty-six consecutive chronic insomniacs completed a clinical interview, psychometric questionnaires, a questionnaire on the family history of insomnia and, when indicated, a polysomnography. A control group was performed to estimate a base-rate incidence of insomnia in their families. RESULTS: Patients with primary (n=77) and psychiatric (n=104) insomnia were definitely included. Of those with primary insomnia, 72.7% reported familial insomnia compared with 24.1% in the noninsomnia control group. Among the psychiatric insomniacs, 43.3% reported familial insomnia. The mother was the relative most frequently affected. Comparisons between the family prevalence rates of insomnia assessed by the probands and by first-degree relatives show high concordance. A tendency to a younger age at onset was observed in familial and primary insomnia. CONCLUSION: This study reports a significant increase of familial aggregation of insomnia, warranting further genetic studies in primary insomnia with early age at onset.     

Epidemiology of severe insomnia and its consequences in Germany

This is the first nation-wide face-to-face survey on the prevalence of well-defined severe insomnia and its impact on quality of life in the general population of Germany. The survey was part of an international epidemiological study, which was also conducted in Belgium, Great Britain, Ireland and Sweden. A representative sample of 1913 adults aged 18 years and over were interviewed in all parts of Germany according to the quota method. Subjects with symptomatic insomnia were identified using an algorithm compatible with the principal criteria for severe insomnia defined in the fourth revision of the Diagnostic and Statistical Manual of Mental Diseases (DSM-IV). Subjects provided data on quality of life using the Short Form 36 Health Survey (SF-36) questionnaire and on health care consumption. Prevalence of severe insomnia in Germany was found to be 4 %, which was lower than in other European countries (6–22 %). Severe insomnia was more prevalent among women, the unemployed, those living alone after divorce or separation, and those in large cities, but not more frequently in the elderly (aged 65 years and over). The majority of subjects had chronic complaints, with 74 % of them suffering from severe sleep problems for over a year's duration (average 56 ± 23 months). Consultations with general physicians, medication usage, medical tests and hospitalisation were greater among severe insomniacs compared to subjects who had no sleep complaints. The question regarding overall appreciation of quality of life was rated as bad in 22 % and good in 28 % of severe insomniacs compared to 3 % (bad) and 68 % (good) in subjects with no sleep complaints. Despite this, only 55 % of severe insomniacs had ever discussed their sleep problem with a doctor and the proportion who consulted their doctor specifically regarding sleep problems in the previous 12 months was even lower (36 %). The vast majority (73 %) was not taking hypnotic or sedative medications. In conclusion, insomnia, even when severe, is a common and a chronic complaint in Germany. This trial suggests that while, on the one hand, sleep disorders have a significant impact on patient's quality of life and consumption of health care, it is, on the other hand, a condition that is poorly recognised and for which patients are, for unknown reasons, reluctant to seek treatment. Received: 23 November 1999 / Accepted: 23 August 2000     

Insomnia and its treatment. Prevalence and correlates

Data for this report come from a nationally representative probability sample survey of noninstitutionalized adults, aged 18 to 79 years. The survey, conducted in 1979, found that insomnia afflicts 35% of all adults during the course of a year; about half of these persons experience the problem as serious. Those with serious insomnia tend to be women and older, and they are more likely than others to display high levels of psychic distress and somatic anxiety, symptoms resembling major depression, and multiple health problems. During the year prior to the survey, 2.6% of adults had used a medically prescribed hypnotic. Typically, use occurred on brief occasions, one or two days at a time, or for short durations of regular use lasting less than two weeks. The survey also found a small group of hypnotic users (11% of all users; 0.3% of all adults) who reported using the medication regularly for a year or longer. If we include anxiolytics and antidepressants, 4.3% of adults had used a medically prescribed psychotherapeutic drug that was prescribed for sleep; 3.1% had used an over-the-counter sleeping pill. The majority of serious insomniacs (85%) were untreated by either prescribed or over-the-counter medications.     

Chronic insomnia,premenopausal women and sleep disordered breathing: part 2. Comparison of nondrug treatment trials in normal breathing and UARS post menopausal women complaining of chronic insomnia

OBJECTIVE: The question addressed here is: Can a discrete sleep disordered breathing (SDB) play a role in the insomnia complaint of postmenopausal chronic insomniacs? To respond to the query, two groups of individuals derived from a cohort of postmenopausal chronic insomniacs recruited mostly from the community were enlisted in a treatment protocol. These subjects were all individuals identified with normal breathing (n=68) and all those recognized with Upper Airway Resistance Syndrome (UARS) (n=62) pooled from a cohort of 349 postmenopausal insomniacs. TREATMENT PROTOCOL: The 62 UARS were allocated to either treatment of chronic insomnia by behavioral approaches or treatment of SDB. Based on ENT evaluation, health professionals in charge of patients selected either treatment with nasal CPAP or treatment of nasal turbinates. A stratification correction was performed to obtain a near equal number of both treatment modalities in each of the two subgroups. The 68 individuals with normal breathing were randomly allocated to immediate behavioral treatment of insomnia or delay treatment of insomnia. The delay treatment received a list of 10 sleep hygiene recommendations by mail. METHODOLOGY: Questionnaires, visual analog scales (VAS), Epworth Sleepiness Scale (ESS), clinical interviews, clinical evaluation with oto-laryngologic clinical assessment of a presence/absence of narrow upper airway and location of narrowing. Actigraphy and polysomnography (PSG) with pressure transducer/and nasal cannula system and esophageal manometry. DATA ANALYSES: All recording data were scored blind to patient's condition. RESULTS: Two subjects in the SBD-CPAP treated group (Group B) and two subjects in the delayed treatment group (Group D) dropped out. Total sleep time was improved compared to baseline in all groups, including the delayed treatment group. One group was significantly better (ANOVA, P=.05) with a more important delta score compared to baseline, and this was the behaviorally treated non-SDB. Sleep latency was significantly decreased in the behaviorally treated group (with or without SBD), P=.05, compared to SBD-treated and delayed treatment groups. Sleep latency was, however, improved in all groups. VAS for "quality of sleep" was higher at 6 months in all the groups when compared to "baseline" values. VAS for "daytime fatigue" showed significant differences among the four groups (ANOVA, P=.01); the overall score at the end of treatment was significantly better in the SDB-treated group than the other three groups. SBD was treated either by radio frequency on nasal turbinate or by nasal CPAP. CPAP-treated patients had a lower VAS score than nasal turbinate treatment, but the difference was only a trend. The delta improvement (6-month baseline condition) in "daytime fatigue" of each subgroup was calculated and compared within and between groups. Despite the small number of subjects, the turbinate-treated subgroup was significantly different from Groups B, C and D (ANOVA, P=.05). When a similar comparison was made with the nasal CPAP group, there was only a nonsignificant trend when compared to Groups B, C and D. CONCLUSION: Abnormal breathing during sleep significantly enhanced complaints of daytime fatigue in postmenopausal chronic insomniacs and this complaint improved with SDB treatment. This improvement is significantly better compared to SDB insomniacs treated with a behavioral regimen. Behavioral treatment, however, gave the best response in the non-SDB chronic insomnia group and improved better long sleep latency even in the SDB group. These results suggest the need to find an appropriate treatment for SBD even if mild and to recognize the role of SDB in relation to symptoms seen with chronic insomnia.     

Polysomnographically determined sleep and body mass index in patients with insomnia

We assessed associations between polysomnographically determined sleep, especially the amount of slow-wave sleep (SWS), and body mass index (BMI) in patients with insomnia. One hundred and forty-one insomniacs and 55 healthy volunteers completed overnight polysomnographic recordings, and we measured height and body weight. No significant correlations were obtained between total sleep time and BMI among insomniacs. Compared with normal volunteers, insomnia patients exhibited longer sleep latency and shorter total sleep duration. While the two groups had no significant differences in BMI, insomniacs presented with more N1 but less time spend in SWS and rapid eye movement sleep (REMS). Based on their SWS time, we divided insomnia patients into three groups: short (26.99±13.88), intermediate (59.24±8.12), and long (102.21±26.17) SWS groups. The short-SWS group had significantly greater BMI than the long-SWS group. Further analyses with multiple linear regression showed a significant negative correlation between the amount of SWS and BMI scores in insomniacs, whereas no such correlation was found in healthy volunteers after controlling for potential confounds (e.g., age, sex and AHI). Our study suggests that low amounts of SWS may be associated with higher BMI in patients with insomnia.     

青少年失眠状况和睡眠质量及二者相关性分析

目的调查青少年失眠状况和睡眠质量及二者之间的相关性。方法对技工学校学生统一发放4733份调查问卷,最终获得有效问卷3342份,记录社会人口学资料,包括性别、年龄、身高、体重、健康状况、户籍、是否为独生子女、父母受教育程度、家庭收入、学习压力、吸烟和饮酒等,以及睡眠和情绪相关量表评分,包括失眠严重指数(ISI)中文版、匹兹堡睡眠质量指数(PSQI)、Epworth嗜睡量表(ESS)、焦虑自评量表(SAS)和Beck抑郁量表(BDI)。结果 3342名青少年中存在失眠997例(29.83%)、日间嗜睡568例(17.00%)、焦虑243例(7.27%)和抑郁1287例(38.51%)。根据ISI中文版评分分为非失眠组(2345名)和失眠组(997例),失眠组女性(P=0.000)、健康状况不良(P=0.000)、非独生子女(P=0.006)、有学习压力(P=0.000)和吸烟(P=0.027)比例,以及ISI中文版评分(P=0.000)、ESS评分(P=0.000)、SAS评分(P=0.000)和BDI评分(P=0.000)均高于非失眠组。Pearson相关分析显示,ISI中文版评分和PSQI评分均与ESS评分(r=0.361,P=0.000;r=0.064,P=0.000)、SAS评分(r=0.326,P=0.000;r=0.069,P=0.000)和BDI评分(r=0.529,P=0.000;r=0.067,P=0.000)呈正相关,且ISI中文版评分的上述相关性(r=0.300～0.600)高于PSQI评分(r0.100)。进一步偏相关分析显示,ISI中文版评分与PSQI评分呈负相关(r=-0.056,P=0.001)。结论失眠组女性更多、健康状况更差、非独生子女更多、学习压力更大、吸烟比例更高,以及日间嗜睡、焦虑和抑郁更严重。与PSQI量表相比,ISI量表中文版与日间嗜睡、焦虑和抑郁的关系更紧密,可能更适用于筛查和评价青少年失眠状况。     

Relationship between chronic painful physical condition and insomnia

Background

A chronic painful physical condition (CPPC) can be a major cause of sleep disturbances. Few community-based surveys examined the specific relationship between these two conditions.

Methods

Eighteen thousand, nine hundred and eighty participants aged 15 years or older from five European countries (the United Kingdom, Germany, Italy, Portugal and Spain) and representative of approximately 206 millions Europeans were interviewed by telephone. The interview included questions about sleeping habits, health, sleep and mental disorders. Painful physical conditions were ascertained through questions about medical treatment, consultations and/or hospitalizations for medical reasons and a list of 42 diseases. A painful physical condition was considered chronic when it lasted at least six months. Insomnia symptoms were defined as difficulty initiating or maintaining sleep or non-restorative sleep, present at least three nights per week, lasting at least one month, and accompanied by daytime consequences.

Results

(1) The point prevalence of at least one CPPC was set at 17.1% (95% CI: 16.5-17.6%) in the sample. (2) Difficulty initiating sleep was found in 5.1% (95% CI: 4.8-5.4%) of the sample, disrupted sleep in 7.5% (95% CI: 7.2-7.9%); early morning awakenings in 4.8% (95% CI: 7.2-7.9%) and non-restorative sleep in 4.5% (95% CI: 4.2-4.8%). (3) More than 40% of individuals with insomnia symptoms reported at least one CPPC. (4) CPPC was associated with more frequent difficulty or inability to resume sleep once awake and a shorter sleep duration. (5) In middle-aged subjects (45-64 years of age), CPPC was associated with longer insomnia duration. At any age, insomnia with CPPC was associated with a greater number of daytime consequences (average of four consequences) than in insomnia without CPPC (average of 2.3 consequences). (6) In multivariate models, CPPC, especially backaches and joint/articular diseases, were at least as importantly associated with insomnia than were mood disorders with odds ratios ranging from 4.1 to 5.0 for backaches and from 3.0 to 4.8 for joint/articular diseases.

Conclusions

CPPC is associated with a worsening of insomnia on several aspects: a greater number of insomnia symptoms, more severe daytime consequences and more chronic insomnia situation. CPPC plays a major role on insomnia. Its place as major contributive factor for insomnia is as much important as mood disorders.     

Heart rate variability and daytime functioning in insomniacs and normal sleepers: preliminary results

OBJECTIVES: This study examined the differences in heart rate variability (HRV) and daytime functioning between insomniacs and normal sleepers. METHODS: All participants underwent an interview, a medical examination, and a sleep measurement protocol during which they wore an actigraph and logged a sleep diary for a 7-day period to verify their eligibility. Included in the study were 18 insomniacs and 21 normal sleepers. During a laboratory session, these participants completed four paper-pencil tests of sleepiness, anxiety, fatigue, and concentration difficulty and the Wisconsin Card Sorting Test. Resting HRV was recorded under paced breathing. RESULTS: Neither did insomniacs experience cognitive impairment nor did they experience excessive daytime sleepiness compared with normal sleepers. However, insomniacs experienced higher frequency of fatigue [effect size (ES)=1.14, P=.002] compared with normal sleepers. There was also a trend toward higher trait anxiety score (ES=0.62) and concentration difficulty (ES=0.59) in insomniacs than in normal sleepers. Although a tendency toward lower resting high- frequency (HF) HRV (ES=-0.57) in insomniacs than in normal sleepers was noted, neither the resting low-frequency (LF) HRV nor the LF/HF ratio were different between groups. Subjective sleep estimates correlated to self-reported daytime consequences such as fatigue and concentration difficulty but not cognitive function. On the contrary, objective sleep estimates correlated to problem-solving/conceptualization and learning but not self-reported daytime consequences. CONCLUSIONS: Insomniacs are not sleepier during the day than normal sleepers. However, they may experience such a daytime symptom as fatigue although cognitive function remains unimpaired.     

失眠症患者的睡眠行为、应付方式及心理控制源的调查研究

目的　探讨失眠症患者的睡眠行为、应付方式及其心理控制源。方法　采用睡眠行为特征量表、应付方式问卷及内在-外在心理控制源量表对68例失眠症患者(失眠症组)和68名睡眠正常者(对照组)进行了测评,并将测评结果加以比较。结果　①失眠症组对睡眠的不合理信念、非功能性睡眠行为和夜间焦虑3个因子评分均明显高于对照组(t=6 07、7 99、17 98,P<0 01),而睡眠效率则明显低于对照组(t=15. 65,P<0.01);②失眠症组解决问题评分明显低于对照组(t=4 .41,P<0 .01),而自责评分则明显高于对照组(t=3 .13,P<0 .01);③失眠症组I-E量表评分明显高于对照组(t=19. 21,P<0. 01)。结论　失眠症患者存在对睡眠的不合理信念、非功能性睡眠行为和夜间焦虑;解决问题能力低,心理控制源为外控。     

失眠症患者主客观睡眠状况分析

目的：探讨失眠症患者主客观睡眠状况及其临床意义。方法：对71例失眠症患者及27例正常对照者进行睡眠调查及全夜多导睡眠图(PSG)检测。结果：失眠症组主观入睡时间、醒觉次数、睡眠潜伏期的评估值较PSG检测值显著增高；主客观入睡时间的评估显著不一致。结论：失眠症患者对失眠障碍主客观评估不一致，在临床诊断时应引起重视。     

新疆博州地区成人失眠与睡眠习惯自调查究

目的 调查新疆博州地区成人失眠的患病率及其影响因素,分析成人失眠与睡眠卫生习惯的相关性.方法 采用多阶段分层随机抽样方法抽取新疆博州地区≥18岁调查者803名,面对面问卷调查进行AIS失眠量表和睡眠卫生习惯量表评分,分析调查者的失眠情况及影响因素.结果 803名被调查者中失眠者192例(23.9％),失眠的主要表现为对总体睡眠质量不满意、总睡眠时间不足(＜6.5 h/夜)、比期望的时间早醒;女性的失眠率(98/354,27.7％)高于男性(94/449,20.9％),职业中军人失眠的患病率(37/99,37.3％)最高,其次为个体户/临时工(55/181,30.4％),差异均有统计学意义(P＜0.05);调查者睡眠卫生习惯量表中服用催眠药物、睡觉饥饿、喝酒助睡眠、睡前担心睡眠和白天担心睡眠的分值与AIS总分均呈正相关关系(P＜0.05),午睡或打盹的分值与AIS总分呈负相关关系(P＜0.05).结论 博州地区军人、个体户/临时工易失眠.服用催眠药物、睡觉饥饿、喝酒助睡眠、睡前或白天担心睡眠的人容易失眠.     

Prevalence and consequences of sleep disorders in a shift worker population

INTRODUCTION: Irregular work schedules often results in a disruption of the normal circadian rhythm that can causes sleepiness when wakefulness is required and insomnia during the main sleep episode. METHOD: Two physicians using the Sleep-EVAL system interviewed 817 staff members of a psychiatric hospital. The interviews were done during the working hours. In addition to a series of questions to evaluate sleep and mental disorders, the evaluation included a standard questionnaire assessing work conditions, work schedule and their consequences. Three work schedules were assessed: (1) fixed daytime schedule (n=442), (2) rotating daytime shifts (n=323) and (3) shift or nighttime work (n=52). RESULTS: Subjects working on rotating daytime shifts were younger than the two other groups and had a higher proportion of women. Participants working on rotating daytime shifts reported more frequently than the fixed daytime schedule workers to have difficulty initiating sleep (20.1% vs. 12.0%). The sleep duration of shift or nighttime workers was shorter than that of the two other groups. Furthermore, subjects working rotating daytime schedule reported to have shorter sleep duration of about 20 min when they are assigned to the morning shift. Work-related accidents were two times more frequent among the rotating daytime workers (19.5%) compared with the fixed daytime schedule workers (8.8%) and the group of nighttime or shift workers (9.6%). Sick leaves in the previous 12 months were also more frequently reported in the rotating daytime schedule group (62.8%) as compared with the daytime group (38.5%, P<.001); 51.9% of nighttime or shift workers took sick leave. CONCLUSIONS: Working on a rotating daytime shifts causes significant sleep disturbances. As consequences, these workers are more likely to feel sleepy at work and are more likely to have work-related accidents and sick leaves.     

Prevalence of insomnia and associated factors in South Korea

INTRODUCTION: In Western countries, insomnia is associated with daytime impaired functioning, as well as physical and psychiatric illnesses. However, little information exists on insomnia in Asian countries. This study investigates the prevalence and correlates of insomnia in the general population of South Korea. METHODS: A representative sample of the South Korean general population composed of 3719 noninstitutionalized individuals aged 15 years or older were interviewed by telephone using the Sleep-EVAL system. The participation rate was 91.4%. The interviews covered sleep habits, sleep symptomatology, physical and psychiatric illnesses. DSM-IV sleep and psychiatric disorder diagnoses were also assessed. RESULTS: Insomnia symptoms occurring at least three nights per week were reported by 17.0% of the sample; difficulty initiating sleep (DIS) was mentioned by 4.0% of the sample, difficulty maintaining sleep (DMS) by 11.5%, early morning awakenings (EMA) by 1.8%, and nonrestorative sleep (NRS) by 4.7% of the sample. DSM-IV insomnia disorder diagnoses were found in 5% of the sample. Over 50% of subjects with insomnia symptoms reported important daytime consequences and another 20% reported mild or moderate consequences. However, the proportion of insomnia subjects seeking medical help for their sleep problems was very low (6.8%). CONCLUSIONS: As in Western countries, insomnia is widespread in South Korea, affecting nearly one in five individuals. Many of them would benefit from medical help; however, few insomnia subjects are consulting for this problem. An educational effort is needed for both the general population and the physicians.     

佐匹克隆及三唑仑对失眠症患者多导睡眠图影响的研究

目的探讨短半衰期催眠药对失眠症患者夜间多导睡眠图（PSG）和白天多次睡眠期测定（MSLT）的影响。方法将22例非器质性失眠症患者随机分成佐匹克隆组（15mg）和三唑仑组（0.5mg）,各11例。对两组用药前后进行夜间PSG和白天MSLT检测和比较。结果用药后夜间PSG显示睡眠效率提高、觉醒和S