Identifying Sleep Apnea from Self-Reports

Kapuniai, Linda E.; Andrew, David J.; Crowell, David H.; Pearce, J. W.

doi:10.1093/sleep/11.5.430

Cited by 128 publications

(64 citation statements)

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“…In an effort to unify the subject populations, all studies were divided into two major groups: studies on patients ''with sleep disorder problems'' 25,27,30,35 and studies on ''patients without known sleep problems''. 28,29,[31][32][33][34] Due to the high prevalence of OSA in patients with sleep disorders, we could not use the first group of studies as a reference for the strength of the questionnaires designed to screen OSA in the general population.…”

Section: Discussionmentioning

confidence: 99%

A systematic review of screening questionnaires for obstructive sleep apnea

Abrishami

Khajehdehi

Chung

2010

Can J Anesth/J Can Anesth

490

341

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Purpose Obstructive sleep apnea (OSA) may lead to lifethreatening problems if it is left undiagnosed. Polysomnography is the ''gold standard'' for OSA diagnosis; however, it is expensive and not widely available. The objective of this systematic review is to identify and evaluate the available questionnaires for screening OSA. Source We carried out a literature search through MEDLINE, EMBASE, and CINAHL to identify eligible studies. The methodological validity of each study was assessed using the Cochrane Methods Group's guideline. Principal findings Ten studies (n = 1,484 patients) met the inclusion criteria. The Berlin questionnaire was the most common questionnaire (four studies) followed by the Wisconsin sleep questionnaire (two studies). Four studies were conducted exclusively on ''sleep-disorder patients'', and six studies were conducted on ''patients without history of sleep disorders''. For the first group, pooled sensitivity was 72.0% (95% confidence interval [CI]: 66.0-78.0%; I 2 = 23.0%) and pooled specificity was 61.0% (95% CI: 55.0-67.0%; I 2 = 43.8%). For the second group, pooled sensitivity was 77.0% (95% CI: 73.0-80.0%; I 2 = 78.1%) and pooled specificity was 53.0% (95% CI: 50-57%; I 2 = 88.8%). The risk of verification bias could not be eliminated in eight studies due to insufficient reporting. Studies on snoring, tiredness, observed apnea, and high blood pressure (STOP) and STOP including body mass index, age, neck circumference, gender (Bang) questionnaires had the highest methodological quality. ConclusionThe existing evidence regarding the accuracy of OSA questionnaires is associated with promising but inconsistent results. This inconsistency could be due to studies with heterogeneous design (population, questionnaire type, validity). STOP and STOP-Bang questionnaires for screening of OSA in the surgical population are suggested due to their higher methodological quality and easyto-use features. RésuméObjectif L'apne´e obstructive du sommeil (AOS) peut provoquer des proble`mes de sante´fatals si elle n'est pas diagnostique´e. La polysomnographie est «l'e´talon or» du diagnostic de l'AOS; cependant, cette me´thode est one´reuse et n'est pas disponible partout. L

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Section: Discussionmentioning

confidence: 99%

A systematic review of screening questionnaires for obstructive sleep apnea

Abrishami

Khajehdehi

Chung

2010

Can J Anesth/J Can Anesth

490

341

View full text Add to dashboard Cite

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“…night -1 (compliance was checked by the timer built up in the CPAP device) and two patients who refused to return to the laboratory were excluded from the second study. Thirteen healthy, nonsmoking, non-obese controls of a similar age, in whom OSAS was excluded clinically using criteria presented by KAPUNIAI et al [13] were also studied. None of the patients had personal or familial history of cardiovascular disease or diabetes and none received medication.…”

Section: Subjects and Ethicsmentioning

confidence: 99%

Abnormal lipid peroxidation in patients with sleep apnoea

Barceló¹,

Miralles²,

Barbé³

et al. 2000

Eur Respir J

214

114

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The prevalence of cardiovascular diseases is increased in patients with the obstructive sleep apnoea syndrome (OSAS). The fall and rise of arterial oxygenation that follows each apnoea may increase lipid peroxidation and contributes to explaining this association. In the present study, the authors determined lipid peroxidation in patients with OSAS and the effect of treatment with continuous positive airway pressure (CPAP).Fourteen male patients with severe OSAS (59 5 apnoea . h -1 ) ( SEM) and 13 healthy nonsmoking, male volunteers of similar age were studied. Patients were studied at diagnosis and after treatment with CPAP for more than 1 yr (>4 h . night -1 ). A venous blood sample was obtained early in the morning after fasting all night. In patients with OSAS, a sample before and during sleep was also obtained. Low density lipoprotein (LDL) particles were isolated by sequential ultracentrifugation. Their level of oxidation was determined by the thiobarbituric acid assay (TBARs), and their susceptibility to oxidation by the lag phase measurement.Patients with OSAS showed higher TBARs (28.1 2.8 versus 20.0 1.8 nmol . malondialdehyde . mgLDL protein -1 , p=0.02) and shorter lag phase values (83.8 3.4 versus 99.7 3.4 min, p=0.005) than controls. These differences were not due to the smoking status of the patient. Likewise, these values did not change significantly throughout the night yet, the lag phase value was significantly improved by treatment with CPAP (124.9 8.5 min; p<0.001).These results indicate that obstructive sleep apnoea syndrome is associated with abnormal lipid peroxidation and that this is improved by chronic use of Continuous positive airway pressure. These results can contribute towards explaining the high prevalence of cardiovascular diseases seen in Obstructive sleep apnoea syndrome.

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“…Their inclusion and exclusion criteria were the same as mentioned above for patients, except for the presence of SAS. This was excluded clinically [20] or, if necessary, after a full polysomnography. Eighty-two volunteers were screened, in whom three polysomnographic studies were required.…”

Section: Populationmentioning

confidence: 99%

Long-term effects of CPAP on daytime functioning in patients with sleep apnoea syndrome

Muñoz¹,

Mayoralas²,

Barbé³

et al. 2000

Eur Respir J

136

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Daytime sleepiness, impaired cognitive performance and dysphoric mood are often present in patients with obstructive sleep apnoea syndrome (SAS). This prospective controlled study evaluates the effects of treatment with continuous positive airway pressure (CPAP) during 1 yr on daytime functioning in a large group of patients with SAS.The authors studied 80 patients (mean SEM 49 1 yrs) with SAS with a mean apnoea-hypopnoea index of 60 2 h -1 , and 80 healthy control subjects matched for sex and age (46 1 yrs.). Measurements were obtained at the beginning of the study and 12 1 months later, and included: daytime sleepiness (Epworth scale), depression and anxiety (Beck tests), vigilance (Steer-Clear1) and reaction time (Psychometer Vigilance Test 1921). Drug, coffee and alcohol intake, as well as the sleep schedule, were also recorded.Results showed that, before treatment, patients were more somnolent (p<0.001), anxious (p<0.01) and depressed (p<0.001) than control subjects. Also, they had a longer reaction time (p<0.05) and poorer vigilance (p<0.01). The use of CPAP improved significantly the levels of somnolence (p<0.0001) and vigilance (p<0.01), but failed to modify anxiety and depression. Reaction time changes were minor. Variables with a potential confounding effect did not change during the study.These results provide firm evidence to substantiate the use of continuous positive airway pressure in patients with sleep apnoea syndrome. Eur Respir J 2000; 15: 676±681.

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Identifying Sleep Apnea from Self-Reports

Cited by 128 publications

References 0 publications

A systematic review of screening questionnaires for obstructive sleep apnea

A systematic review of screening questionnaires for obstructive sleep apnea

Abnormal lipid peroxidation in patients with sleep apnoea

Long-term effects of CPAP on daytime functioning in patients with sleep apnoea syndrome

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