2022
Comparison of Ring Pulse Oximetry Using Reflective Photoplethysmography and PSG in the Detection of OSA in Chinese Adults: A Pilot Study
Zhao R, Xue J, Zhang X, Peng M, Li J, Zhou B, Zhao L, Penzel T, Kryger M, Dong XS, Gao Z, Han F. Comparison of Ring Pulse Oximetry Using Reflective Photoplethysmography and PSG in the Detection of OSA in Chinese Adults: A Pilot Study. Nature And Science Of Sleep 2022, 14: 1427-1436. PMID: 36003191, PMCID: PMC9394522, DOI: 10.2147/nss.s367400.Peer-Reviewed Original ResearchEvents/hOxygen desaturation indexIntraclass correlation coefficientPulse oximetryChinese adultsThreshold of AHIObstructive sleep apneaDetection of OSAPositive likelihood ratioChinese Han subjectsOxygen desaturationDesaturation indexSleep apneaMean ageSimultaneous polysomnographyOxygen saturationPSG-AHIPolysomnographySleep laboratorySleep timePilot studyHan subjectsAHIOximetryCumulative percentage
2016
Effects of Suvorexant, an Orexin Receptor Antagonist, on Respiration during Sleep In Patients with Obstructive Sleep Apnea.
Sun H, Palcza J, Card D, Gipson A, Rosenberg R, Kryger M, Lines C, Wagner JA, Troyer MD. Effects of Suvorexant, an Orexin Receptor Antagonist, on Respiration during Sleep In Patients with Obstructive Sleep Apnea. Journal Of Clinical Sleep Medicine 2016, 12: 9-17. PMID: 26194728, PMCID: PMC4702197, DOI: 10.5664/jcsm.5382.Peer-Reviewed Original ResearchConceptsObstructive sleep apneaOrexin receptor antagonistMean AHIRespiratory effectsSleep apneaMultiple dosesReceptor antagonistIntra-individual variabilityModerate obstructive sleep apneaEffects of suvorexantLowest effective doseSleep laboratory studiesTotal sleep timeMean SpO2Single doseRespiratory functionOxygen saturationPulse oximetryPlaceboPatientsSleep timeAHIDay 4Mean increaseSuvorexant
2007
Effect of Ramelteon, a selective MT1/MT2-receptor agonist, on respiration during sleep in mild to moderate COPD
Kryger M, Wang-Weigand S, Zhang J, Roth T. Effect of Ramelteon, a selective MT1/MT2-receptor agonist, on respiration during sleep in mild to moderate COPD. Sleep And Breathing 2007, 12: 243-250. PMID: 18060441, DOI: 10.1007/s11325-007-0156-4.Peer-Reviewed Original ResearchConceptsModerate chronic obstructive pulmonary diseaseChronic obstructive pulmonary diseaseAbnormal breathing eventsSelective MT1/MT2 receptor agonistMT1/MT2 receptor agonistMean apnea-hypopnea indexBreathing eventsEffects of ramelteonMT2 receptor agonistSingle bedtime doseApnea-hypopnea indexObstructive pulmonary diseaseNumber of awakeningsTotal sleep timeMelatonin receptor agonistBedtime dosePlacebo groupAdverse eventsPulmonary diseaseCrossover studyPhysical examinationReceptor agonistSleep efficiencySleep durationSleep time
1996
L-DOPA/Carbidopa for Nocturnal Movement Disorders in Uremia
Walker S, Fine A, Kryger M. L-DOPA/Carbidopa for Nocturnal Movement Disorders in Uremia. Sleep 1996, 19: 214-218. PMID: 8723378, DOI: 10.1093/sleep/19.3.214.Peer-Reviewed Original ResearchConceptsL-dopa/carbidopaRestless legs syndromeSlow-wave sleepLeg movementsSleep timeTreatment of RLSMovement arousal indexNocturnal movement disordersSingle bedtime doseChronic hemodialysis patientsPeriodic limb movementsHours of sleepBedtime doseActive medicationHemodialysis patientsCrossover studyLegs syndromeUremic patientsArousal indexMovement disordersSleep disruptionFrequent dosingObjective improvementSleep disordersEffective treatment
1994
Effect of Inhaled 3% CO2 on Cheyne-Stokes Respiration in Congestive Heart Failure
Steens R, Millar T, Xiaoling S, Biberdorf D, Buckle P, Ahmed M, Kryger M. Effect of Inhaled 3% CO2 on Cheyne-Stokes Respiration in Congestive Heart Failure. Sleep 1994, 17: 61-68. PMID: 8191204, DOI: 10.1093/sleep/17.1.61.Peer-Reviewed Original ResearchConceptsStable congestive heart failureCheyne-Stokes respirationCongestive heart failureInhalation of CO2Heart failureSleep timeNocturnal arterial oxygen desaturationNight polysomnographic studiesArterial oxygen desaturationMovement sleep timeTotal sleep timeApnea indexOxygen desaturationMost patientsPolysomnographic studySleep latencySleep disruptionClinical significanceCardiac diseaseSleep structurePatientsNeurological diseasesNight 3Virtual abolitionShort duration
1993
Benzodiazepines in Congestive Heart Failure: Effects of Temazepam on Arousability and Cheyne-Stokes Respiration
Biberdorf D, Steens R, Millar T, Kryger M. Benzodiazepines in Congestive Heart Failure: Effects of Temazepam on Arousability and Cheyne-Stokes Respiration. Sleep 1993, 16: 529-538. PMID: 8235237, DOI: 10.1093/sleep/16.6.529.Peer-Reviewed Original ResearchConceptsCheyne-Stokes respirationCongestive heart failureTotal sleep timePercentage of TSTApnea/hypopnea indexOxygen saturationTotal wake timeEffects of temazepamHeart failureSleep architectureDouble-blind crossover trialSevere congestive heart failureOvernight oxygen saturationStage 1 sleepHours of sleepSleep stage proportionsCHF patientsHypopnea indexMale patientsDaytime somnolenceCrossover trialSignificant changesFrequent arousalsDaytime alertnessSleep timeSleep in nondepressed patients with panic disorder: II. Polysomnographic assessment of sleep architecture and sleep continuity
Stein M, Enns M, Kryger M. Sleep in nondepressed patients with panic disorder: II. Polysomnographic assessment of sleep architecture and sleep continuity. Journal Of Affective Disorders 1993, 28: 1-6. PMID: 8326076, DOI: 10.1016/0165-0327(93)90071-q.Peer-Reviewed Original ResearchConceptsPanic disorderAge-comparable healthy controlsNon-depressed patientsTotal sleep timeNondepressed patientsPolysomnographic assessmentDepressed patientsHealthy controlsMajor depressionSleep architectureSleep continuitySleep maintenanceDelta sleepEEG sleepPatientsNormal sleepSleep timeSleepDisordersModest reductionImpairment
1991
Sleep quality in children with asthma treated with theophylline or cromolyn sodium
Avital A, Steljes D, Pasterkamp H, Kryger M, Sanchez I, Chernick V. Sleep quality in children with asthma treated with theophylline or cromolyn sodium. The Journal Of Pediatrics 1991, 119: 979-984. PMID: 1960623, DOI: 10.1016/s0022-3476(05)83062-8.Peer-Reviewed Original ResearchConceptsCromolyn sodiumTheophylline periodPlacebo-controlled trialArterial oxygen desaturationTheophylline blood levelsArterial oxygen saturationTotal sleep timeYears of ageOxygen desaturationPulmonary functionTheophylline treatmentBlood levelsChild's asthmaCentral originSleep latencyProtective effectSleep qualityOxygen saturationSleep efficiencySleep timeAsthmaMicrograms/SleepMovement timeTreatmentSubjective Versus Objective Evaluation of Hypnotic Efficacy: Experience with Zolpidem
Kryger M, Steljes D, Pouliot Z, Neufeld H, Odynski T. Subjective Versus Objective Evaluation of Hypnotic Efficacy: Experience with Zolpidem. Sleep 1991, 14: 399-407. PMID: 1759092, DOI: 10.1093/sleep/14.5.399.Peer-Reviewed Original ResearchConceptsTotal sleep timeSleep latencyNumber of awakeningsSleep timePSG findingsPersistent sleepHypnotic efficacySleep qualityPatients' subjective evaluationSubjective sleep qualityDecreased sleep latencyQuality of sleepShortened sleep latencyTotal wake timeObjective measuresPolysomnographic findingsSleepy patientsChronic insomniaWeeks' useIndividual patientsSleep efficiencySubjective reductionSubjective increaseObjective efficacyPatients
1989
The effect of oxygen on respiration and sleep in patients with congestive heart failure.
Hanly P, Millar T, Steljes D, Baert R, Frais M, Kryger M. The effect of oxygen on respiration and sleep in patients with congestive heart failure. Annals Of Internal Medicine 1989, 111: 777-82. PMID: 2817624, DOI: 10.7326/0003-4819-111-10-777.Peer-Reviewed Original ResearchConceptsStable congestive heart failureCheyne-Stokes respirationCongestive heart failureHeart failureTotal sleep timeOxygen therapySleep timeStage 1 NREM sleepPlacebo-controlled crossover studyLow-flow oxygenNocturnal oxygen saturationNocturnal oxygen therapyOutpatient cardiology clinicApnea-hypopnea indexNumber of arousalsStage 1 sleepStage 2 sleepSlow-wave sleepHyperpneic phaseNocturnal hypoxemiaSleep hypoxemiaMale patientsNasal cannulaeCardiology clinicCrossover study
1987
The Effect of Excessive Ethanol Ingestion on Sleep in Severe Chronic Obstructive Pulmonary Disease
Easton P, West P, Meatherall R, Brewster J, Lertzman M, Kryger M. The Effect of Excessive Ethanol Ingestion on Sleep in Severe Chronic Obstructive Pulmonary Disease. Sleep 1987, 10: 224-233. PMID: 3629084, DOI: 10.1093/sleep/10.3.224.Peer-Reviewed Original ResearchConceptsChronic obstructive pulmonary diseaseSevere chronic obstructive pulmonary diseaseObstructive pulmonary diseaseSleep timePulmonary diseaseHeart rateEmphysematous chronic obstructive pulmonary diseaseExcessive ethanol ingestionSignificant O2 desaturationArterial oxygen saturationIngestion of alcoholDose of ethanolSleep stagesExcessive alcohol ingestionTotal sleep timeMean heart ratePremature ventricular contractionsCOPD altersAlcohol ingestionO2 desaturationEthanol ingestionOxygen saturationVentricular contractionsREM timeSerum ethanol
1982
Protriptyline in Obstructive Sleep Apnea — A Double-Blind Trial
Brownell L, West P, Sweatman P, Acres J, Kryger M. Protriptyline in Obstructive Sleep Apnea — A Double-Blind Trial. New England Journal Of Medicine 1982, 307: 1037-1042. PMID: 6750396, DOI: 10.1056/nejm198210213071701.Peer-Reviewed Original ResearchConceptsObstructive sleep apneaSleep apneaTotal sleep timeApnea timeApnea durationBody weightSleep timeDouble-blind crossover studyDouble-blind trialMonths of treatmentWeeks of treatmentNocturnal oxygenationREM reductionDaytime somnolenceCrossover studyTricyclic antidepressantsApneaArousal frequencySimilar decreaseProtriptylineSimilar improvementsTreatmentOxygenationDurationSomnolence