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PubMed2004

Sleep problems in children with common medical disorders.

Sleep problems are common in many pediatric medical disorders and complicate management and patient outcomes. A wide range of conditions, including asthma, cystic fibrosis, sickle cell disease, gastroesophageal reflux, neuromuscular diseases, scoliosis, craniofacial abnormalities, obesity, and chromosomal disorders, have various sleep disturbances, including sleep-disordered breathing, ventilatory dysfunction, sleep-onset and sleep maintenance problems, and circadian rhythm disturbances. Given the adverse neurocognitive and physiologic outcomes associated with a deranged night's sleep, it is important for pediatricians to be able to anticipate, recognize, and appropriately manage these problems. This article reviews the known sleep-related problems of a few relatively common pediatric disorders.

Child↗

PubMed2000

Sleep arousal response to experimental thermal stimulation during sleep in human subjects free of pain and sleep problems.

Although the interaction between sleep and pain is generating considerable interest (NIH Technology Assessment Panel, 1996), it is still unknown if chronic pain is the cause or effect of poor sleep. To further this understanding, subjects free of pain and sleep problems need to be studied in order to assess their response to pain during sleep, defined as a behavioral and a physiological state in which sensory processing is altered. (For example, while auditory perception remains active, other sensory inputs are facilitated, attenuated, or suppressed (Velluti, 199746 degrees C) was statistically greater in the lighter sleep stage 2 (48.3%) than in the deeper stages 3&4 (27.9%). A nocifensive behavioral-motor response was associated with only 2.5% of the 351 heat pain stimuli. Two other markers of sleep quality-sleep stage shift and awakening-were not influenced by the thermal stimuli. None of the subjects demonstrated any burns in the morning following the thermal stimulations applied during sleep. We conclude that the processing of nociceptive inputs is attenuated across sleep stages.

Adult↗

PubMedDate not supplied

Sleep problems and institutionalization of the elderly.

This study examined the role of sleep problems in the decisions of families to institutionalize elderly relatives. Previous work on institutionalization of the elderly has given little attention to the contribution of nocturnal, sleep-related problems. Seventy-three primary caregivers of elders recently admitted to a nursing home or psychiatric hospital were asked to identify the problems the elder was having during the night and day and rate the degree to which these influenced their decision to institutionalize the elder. Seventy percent of the caregivers in each sample cited nocturnal problems in their decision to institutionalize, often because their own sleep was disrupted. The most frequent disruptive nocturnal events were micturition, pain, and complaints of sleeplessness. Sleep problems of the elderly contribute heavily to the decision to institutionalize an elder and thus to the social and economic cost of institutional care. They appear to do this largely by interfering with the sleep of caregivers. The nature, prevalence, and treatability of the sleeping problems of both elders and their caregivers need further study.

Activities of Daily Living↗

PubMed2002

Sleep problems in childhood: a longitudinal study of developmental change and association with behavioral problems.

OBJECTIVE: The objective of the study was to examine specificity, order of appearance, and developmental changes in the relationships between sleep problems and behavioral problems in children. METHOD: Four hundred ninety children were selected from a large-scale longitudinal study of children growing up in adoptive and nonadoptive (biological) families in Colorado. Parental ratings of children's sleep and behavioral problems on the Child Behavior Checklist were obtained from ages 4 to 15 years. RESULTS: Sleep problems decreased from age 4 years to mid-adolescence, but there was modest stability of individual differences across this age range (r = 0.29). Regression analyses indicated that sleep problems at age 4 predicted behavioral/emotional problems in mid-adolescence after accounting for child sex, adoptive status, and stability of behavioral/emotional problems. Finally, the correlation between sleep problems and depression/anxiety increased significantly during this age period from r = 0.39 at age 4 years to r = 0.52 at mid-adolescence. CONCLUSIONS: Early sleep problems may forecast behavioral/emotional problems, and there may be important developmental change in the overlap between sleep problems and behavioral/emotional problems.

Adolescent↗

PubMed1997

Treatment of multiple sleep problems in children with developmental disabilities: faded bedtime with response cost versus bedtime scheduling.

Sleep problems are a common concern for persons with mental retardation and severe behavior problems, yet few empirically validated treatment options exist. In the current investigation, the efficacy of a faded bedtime with response cost treatment was compared with a bedtime scheduling procedure in treating the multiple sleep problems of two groups of children with mental retardation, sleep problems, and other severe behavior problems. Faded bedtime with response cost (FBRC) consisted of systematic delay of bedtime, removal from bed if sleep was not initiated within 15 minutes (response cost), and a fading procedure to gradually advance the bedtime. The bedtime scheduling procedure consisted of a consistent sleep and wake time and prevention of daytime sleep. The sleep of children in the FBRC group improved significantly more than the sleep of children in the bedtime scheduling group. Results are discussed in terms of behavioral and biological mechanisms which may contribute to the efficacy of FBRC.

Child↗

PubMed1996

Preventing sleep problems in infants: a randomized controlled trial.

In the pre-school years sleep problems are one of the most common subjects on which parents seek advice from health professionals. In the majority of cases a sleepless child causes significant stress within the family, and if parents do not obtain sufficient sleep this can have a detrimental effect on their physical and emotional well-being. In a small number of cases a child who wakes frequently and will not settle back to sleep may be at risk of physical abuse. In recent years it has been suggested that it may be possible to prevent sleep problems developing by providing parents with advice in the post-natal period. Parents have stated that they find this type of intervention helpful, however, there has been no attempt to establish whether a preventive approach is effective. The aim of this research was to evaluate the efficacy of health education in reducing the incidence of sleep problems. Adopting an experimental approach, participants were randomly allocated to a control group or an intervention group. Parental knowledge of sleep and settling behaviour was manipulated when the children in the intervention group were 3 months old. The sleeping behaviour of the infants in both groups was compared 6 months later, when the children were 9 months old. Data was collected from 86 families in the intervention group and 83 families in the control group. A comprehensive analysis of the sleeping behaviour demonstrated that a significantly smaller percentage of babies in the intervention group had settling and night-waking difficulties than in the control group.

Child Behavior Disorders↗

PubMed2004

Neurologic disorders masquerading as pediatric sleep problems.

Neurologic disorders may present or masquerade as pediatric sleep problems and fool the pediatrician, which may delay diagnosis and treatment. Many of the sleep problems in children with neurologic disorders arise directly from primary dysfunction or delayed maturation of their sleep-wake regulation systems. It is important to realize that nocturnal frontal lobe seizures or cluster headaches can be mistaken for night terrors, and craniopharyngiomas or myotonic dystrophy may present as narcolepsy-cataplexy. Hypothalamic dysfunction may explain not only the impaired circadian rhythm disorders in children with profound mental retardation but also excessive sleepiness and hyperphagia in Prader-Willi and Kleine-Levin syndromes. Intellectually challenged children perform better, learn more, and are better behaved with sufficient restorative sleep.

Circadian Rhythm↗

PubMed2000

Bodily pain, sleep problems and mental distress in schoolchildren.

UNLABELLED: It has been suggested that childhood pain could be the beginning of a career with chronic disabling pain. Bodily pain is frequent in children. We examined the association between self-reported bodily pain, mental distress and sleep problems in schoolchildren to test the following hypotheses: (i) that self-reported bodily pain is associated with mental distress and sleep problems, (ii) that the association is dependent on the localization of pain, and (iii) that the association increases with number of painful areas. Eighty-six percent of the pupils (569) in the 4th form (mean age 10.5 y), 7th form (mean age 13.5 y) and 9th form (mean age 15.5 y) from all the schools in a local community answered a questionnaire about self-esteem, body-image, physical activity and bodily pain. We found a strong association between the reporting of pain, mental distress and sleep problems. Pain in the knees was the only problem reported more frequently by boys than by girls, and knee pain did not show the same association with mental distress and sleep problems as pain from other regions. CONCLUSIONS: A possible cause-effect relationship between pain, mental distress and sleep problems is discussed, and the possibility that all the complaints are the simultaneous signs of a multisymptom syndrome is introduced.

Adolescent↗

PubMed1999

Severe sleep problems among infants in a normal population in Sweden: prevalence, severity and correlates.

The aim of this study was to explore the prevalence of parentally experienced infant sleep problems, with special interest in severe problems, in a total community sample of 2518 infants aged 6-18 mo. Correlates to severe sleep problems were sought. The families were approached using a questionnaire and 83% responded. Data from the collection procedure point to a nonselective dropout. Sixteen percent of the parents reported their children as having moderate or severe difficulties in falling asleep at night (sleep refusal, bedtime struggles) and 30% reported frequent night waking. Almost all (93%) of the parents had sought help at the Child Health Centre (CHC), but only 48% were satisfied with the support and advice they got. Severe sleep problems as defined by the ICSD (International Classification of Sleep Disorders, 1990) were found in 129 of the children (6.2%), who were studied in detail, with the rest of the population as controls. Severe sleep problems were found to be correlated with parental worries and anxiety concerning infant health (although the children were reported as being as healthy as the controls), infant feeding problems and intensive parental interventional behaviour (especially feeding) during the evening and night. A common factor of insecurity in the parental role is suggested.

Anxiety↗

PubMed1995

Occult caffeine as a source of sleep problems in an older population.

OBJECTIVE: To evaluate the impact of caffeine in medication on sleep complaints in a community population of persons aged 67 or older. DESIGN: Cross-sectional analysis. SETTING: Iowa 65+ Rural Health Study. PARTICIPANTS: Those who completed their own interview, including a section on the use of medications, during the third annual in-person follow-up in 1984-1985. MEASUREMENTS MAIN OUTCOMES: trouble falling asleep or other sleep complaints. Covariates: use of caffeine-containing medication, spasmolytic, or sympathomimetic drug; number of drugs used; depressive symptoms; self-perceived health; comorbidity, hip fracture, arthritis, ulcer of stomach or intestines; and consumption of caffeinated beverages. RESULTS: The prevalence of caffeinated medication use by participants was 5.4%. Those reporting the use of any caffeine-containing medication were at an increased risk of having trouble falling asleep (Odds Ratio [OR] = 1.79, 95% confidence interval [CI] = 1.19-2.68). There was no significant risk of other reported nighttime or daytime sleep problems associated with use of caffeine-containing drugs. Even after adjusting for other factors that could interfere with initiation of sleep, such as painful disease, depressive symptoms, polypharmacy, use of specific medications known to interfere with sleep, and coffee consumption, the use of caffeine-containing medication still presented a significantly increased risk of having trouble falling asleep (OR = 1.60, CI = 1.04-2.46). Although those participants using over-the-counter analgesic medication containing caffeine had an increased risk of trouble falling asleep (OR = 1.88, CI = 1.22-2.90), there was no significant risk of trouble falling asleep for those who took similar noncaffeinated OTC analgesic drugs (OR = 1.26, CI = 0.87-1.83). CONCLUSIONS: The use of caffeine-containing medication is associated with sleep problems. Healthcare providers should be aware of potential problems associated with over-the-counter medications containing caffeine and should counsel patients about the potential of sleep problems. Older patients should be encouraged to read the label on medications and to select drugs that are caffeine-free when that is possible.

Aged↗

PubMed2000

Sleep problems as a risk factor for falls in a sample of community-dwelling adults aged 64-99 years.

OBJECTIVES: The purpose of this study was to determine if reported nighttime sleep problems and daytime sleepiness were associated with reported falling during the previous 12 months in a representatively sampled older adult population. DESIGN: Random-digit dial telephone survey. SETTING: Representatively sampled older adult population living in northern California. PARTICIPANTS: Participants were 971 women and 555 men, aged 64 to 99 years. MEASUREMENTS: Twenty-minute telephone interview adapted from the National Health Interview Survey. RESULTS: Two hundred and eighty-four participants reported falling during the previous 12 months (19% of the sample). Significantly more women fell than men (20% and 14%, respectively, P < .001). The following variables were significant risk factors for falling in univariate analyses: female gender, being unmarried, living alone, income less than $15,000 per year, difficulty walking, having more than one chronic medical condition, history of cardiovascular disease, hypertension, arthritis, sensory impairment, psychological difficulties, and nighttime sleep problems. All of the nighttime sleep problem variables remained significant risk factors for falling after controlling for other risk factors for falling. CONCLUSIONS: The results provide support for an independent association between reported sleep problems and falls in an older population. One of the implications of these data is that behavioral research focusing on the effectiveness of insomnia treatment in old age should not only examine typical sleep-related outcomes (e.g., total time asleep, number of awakenings) but also the occurrence of falls as well.

Accidental Falls↗

PubMed1999

Behavioural treatment for sleep problems in children with severe learning disabilities and challenging daytime behaviour: effect on daytime behaviour.

The study aimed to investigate a group of children with severe learning disabilities, challenging daytime behaviour, and severe sleep problems to see if successful behavioural treatment of the children's sleep problems resulted in reduced daytime challenging behaviour as reported by mothers and teachers. A randomised controlled trial of behavioural interventions for the children's sleep problems was conducted (N = 30). The intervention group received an individually tailored behavioural programme and were supported by telephone calls from the therapist. Baseline assessments of the children's behaviour were made using the Aberrant Behavior Checklist and were repeated 1 month and 3 months after the start of intervention. There were no behavioural changes that were specific to children in the treatment group. However, improvements in some behaviours were seen in both the intervention and the control group at the 1-month and 3-month assessments and there was agreement between mothers' and teachers' reports for many of these changes. The results suggest that nonspecific effects of participating in the study (including an increased sleep duration, which was seen in both groups), rather than resolution of sleep problem per se, may have a beneficial effect on child behaviour and these factors need to be identified for therapeutic use.

Analysis of Variance↗

PubMed1998

Childhood sleep problems: association with prenatal factors and maternal distress/depression.

OBJECTIVE: To determine whether problems with childhood sleep behaviour are associated with either maternal sleep patterns and emotional status during the pregnancy period, or levels of maternal distress and depression during the postnatal period. METHODOLOGY: A case/control comparison study. Cases were families presenting for admissions to a mother/baby hospital in Brisbane with the major presenting problem being the child's sleep behaviour. The control group consisted of families presenting for well child health care to one of four child health centres in suburban Brisbane. Each participating mother provided information by way of a self-report questionnaire on social and demographic variables, children's sleep patterns, maternal emotional adjustment and maternal sleep pattern during the pregnancy, and current problem with child's sleep behaviour. Current level of maternal distress/depression, was measured using the Edinburgh Postnatal Depression Scale. Cases were compared with controls on all these variables. RESULTS: Significant differences were found between groups in childhood sleep parameters, degree of problem related to childhood sleep, maternal sleep variables during the entire pregnancy, and current levels of maternal distress/depression. CONCLUSION: The origins of problematic childhood sleep behaviour may lie in the pregnancy period. Levels of maternal distress and depression are associated with problematic childhood sleep behaviour. The issue of whether childhood sleep problem predisposes to maternal distress/depression needs exploration. Assessment of maternal mood disorder or childhood sleep problems should be comprehensive and involve both the maternal infant dyad and the family network.

Adaptation, Psychological↗

PubMed2005

Vagal regulation and emotional intensity predict children's sleep problems.

We examined the role of children's emotional intensity and vagal functioning in predicting sleep problems in healthy elementary school-aged children. Children's dispositional emotionality was examined via parent report, and their vagal regulation was assessed via respiratory sinus arrhythmia (RSA) during a baseline and a reaction time (RT) task. Sleep problems were examined through both child reports, and home monitoring with wrist actigraphs for four consecutive nights. Increased emotional intensity was predictive of a reduced amount of sleep and increased night activity. Less apt vagal regulation, characterized by lower levels of RSA suppression to the RT task, was predictive of increased sleep problems as assessed through both subjective and actigraphy-based measures of sleep. Results indicate that children's emotionality and regulation predict unique variance in the amount and quality of children's sleep, and suggest that they may underlie, at least in part, sleep disturbances in healthy children.

Adolescent↗

PubMed2005

Parental perception of sleep problems in children of normal intelligence with pervasive developmental disorders: prevalence, severity, and pattern.

OBJECTIVE: This study compares parents' perceptions of the prevalence, severity, and pattern of sleep problems in children of normal intelligence with pervasive developmental disorders (PDDs) with a normative comparison group of children. METHOD: A survey including the Children's Sleep Habits Questionnaire was mailed to a sample of parents of children (age range 5-12 years) with PDDs (diagnosed by the Autism Diagnostic Interview-Revised) obtained by chart review of the past 7 years and to parents of comparison children matched on age, gender, and postal code. RESULTS: The response rate in the PDD group was 82.2% (37/45) and 55.8% (43/77) in the comparison group. By individually matching, 23 pairs were obtained. The prevalence of sleep problems in the PDD group was reported by parents as being significantly higher than in the comparison group (78% and 26%, respectively; p < .002), as was the severity (mean score 48.2 and 39.0, respectively; p < .001). Values for four of eight sleep subscales including sleep onset delay, sleep duration, sleep anxiety, and parasomnias were significantly higher in the PDD group. CONCLUSIONS: Parents report that sleep problems are significantly more prevalent and severe in children of normal intelligence with PDDs compared with normally developing children, and the pattern appears diverse. Sleep problems in children with PDDs require further research and clinical attention.

Canada↗

PubMed1998

Using chronotherapy to treat severe sleep problems: a case study.

Chronotherapy was used to treat severe sleep problems (irregular sleep onset times, frequent night and early wakings, and short total sleep times) in a girl with mental retardation. Chronotherapy involved systematically delaying the child's bedtime each night while maintaining a regular schedule during waking hours until an age-appropriate bedtime was achieved. Immediate improvements in the child's sleep pattern were observed with the introduction of treatment, and an age-appropriate bedtime was achieved in 11 days. Four months of follow-up data indicated that improvements maintained in the home. Although chronotherapy was developed specifically for adults with delayed sleep phase insomnia, the current results suggest that the treatment may be useful for other populations and problems.

Child↗

PubMed2005

Pain as a mediator of sleep problems in arthritis and other chronic conditions.

OBJECTIVE: To examine the associations between arthritis and insomnia symptoms and unrefreshing sleep, as well as the role of pain as a mediator of these relationships. METHODS: Analyses were conducted on the cross-sectional, nationally representative, weighted sample of adults > or =18 years of age (n = 118,336) in the 2000/2001 Canadian Community Health Survey. Four logistic regression models were estimated for each sleep problem (model 1: arthritis only; model 2: model 1 + sociodemographic characteristics, lifestyle factors, and other chronic conditions; model 3: model 2 + mental health [stress, depression]; and model 4: model 3 + pain). Mediation by pain was quantified by the percentage change in the effect of arthritis on a particular sleep problem by comparing models 3 and 4. RESULTS: The prevalence of insomnia symptoms and unrefreshing sleep in persons with arthritis was 24.8% and 11.9%, respectively. These estimates are twice as high as those for persons without arthritis. In multivariate regression analyses, the addition of pain decreased the effect of arthritis by 53% (insomnia symptoms) and 64% (unrefreshing sleep). The effect of arthritis was still statistically significant in these models, suggesting that pain is a partial mediator of these relationships. CONCLUSION: Insomnia symptoms and unrefreshing sleep affect a considerable proportion of individuals with arthritis. Pain mediates a substantial amount of the relationship between arthritis and sleep problems. Better pain management could significantly improve sleep in individuals with arthritis.

Adolescent↗

PubMed2006

Associations between sleep problems, anxiety, and depression in twins at 8 years of age.

OBJECTIVES: Associations between sleep and internalizing problems are complex and poorly understood. To better understand these covarying difficulties, genetic and environmental influences were estimated by using a twin design. METHODS: Three hundred 8-year-old twin pairs reported on their anxiety and depression by completing the Screen for Childhood Anxiety Related Emotional Disorders and the Children's Depression Inventory. Parents reported on their children's sleep problems by completing the Child Sleep Habits Questionnaire. RESULTS: Children reported by their parents to have different types of sleep problems self-reported more depression symptoms than those without. The correlation between total sleep-problem score and depression was moderate. That between sleep problems and anxiety was smaller and was not examined further. The association between sleep problems and depression was mainly explained by genes, and there was substantial overlap between the genes influencing sleep problems and those influencing depression. There was smaller influence from environmental factors making family members alike, and environmental factors making family members different decreased the association between sleep problems and depression. CONCLUSIONS: A range of sleep difficulties are associated with depression in school-aged children, and the overall association between the 2 difficulties may be largely influenced by genes.

Anxiety Disorders↗