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
2015
Effects of suvorexant, an orexin receptor antagonist, on breathing during sleep in patients with chronic obstructive pulmonary disease
Sun H, Palcza J, Rosenberg R, Kryger M, Siringhaus T, Rowe J, Lines C, Wagner JA, Troyer MD. Effects of suvorexant, an orexin receptor antagonist, on breathing during sleep in patients with chronic obstructive pulmonary disease. Respiratory Medicine 2015, 109: 416-426. PMID: 25661282, DOI: 10.1016/j.rmed.2014.12.010.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overAzepinesCross-Over StudiesDouble-Blind MethodFemaleHumansMaleMiddle AgedOrexin Receptor AntagonistsPulmonary Disease, Chronic ObstructiveRespirationSeverity of Illness IndexSleepSleep Aids, PharmaceuticalSpirometryTreatment OutcomeTriazolesUnited StatesConceptsChronic obstructive pulmonary diseaseObstructive pulmonary diseaseSleep breathing disordersOrexin receptor antagonistPulmonary diseaseBreathing disordersReceptor antagonistModerate chronic obstructive pulmonary diseaseDay 4Effects of suvorexantModerate airflow limitationRespiratory depressant effectsApnea-hypopnea indexMaximum daily doseClinical research unitTotal sleep timeTreatment of insomniaMean AHICOPD patientsAirflow limitationHypopnea indexDaily doseMean SpO2Spirometry criteriaHypnotic medications
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
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
A Developmental Study of the Dose-Response Curve of the Respiratory Sensory Reflex
Alvaro R, De Almeida V, Kwiatkowski K, Cates D, Kryger M, Rigatto H. A Developmental Study of the Dose-Response Curve of the Respiratory Sensory Reflex. American Journal Of Respiratory And Critical Care Medicine 1993, 148: 1013-1017. PMID: 8214918, DOI: 10.1164/ajrccm/148.4_pt_1.1013.Peer-Reviewed Original ResearchReview: Sleep in Heart Failure
Yamashiro Y, Kryger M. Review: Sleep in Heart Failure. Sleep 1993, 16: 513-523. PMID: 8235235, DOI: 10.1093/sleep/16.6.513.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsEffects of Zolpidem and Triazolam on Sleep and Respiration in Mild to Moderate Chronic Obstructive Pulmonary Disease
Steens R, Pouliot Z, Millar T, Kryger M, George C. Effects of Zolpidem and Triazolam on Sleep and Respiration in Mild to Moderate Chronic Obstructive Pulmonary Disease. Sleep 1993, 16: 318-326. PMID: 8341892, DOI: 10.1093/sleep/16.4.318.Peer-Reviewed Original ResearchConceptsChronic obstructive pulmonary diseaseModerate chronic obstructive pulmonary diseaseObstructive pulmonary diseaseEffects of zolpidemPulmonary diseaseDrug conditionsNocturnal arterial oxygen desaturationArterial oxygen desaturationApnea-hypopnea indexGroup of patientsArterial oxygen saturationNumber of awakeningsTotal sleep timeHours of sleepSignificant differencesSubjective sleep variablesNew hypnotic agentOxygen desaturationCrossover studyHypnotic agentsSleep problemsSleep qualityOxygen saturationSleep efficiencyActive drug
1992
Short Technical Note: Quantification of Periodic Breathing: Preliminary Studies
Millar T, Hanly P, Kryger M. Short Technical Note: Quantification of Periodic Breathing: Preliminary Studies. Sleep 1992, 15: 364-370. PMID: 1519013, DOI: 10.1093/sleep/15.4.364.Peer-Reviewed Original ResearchConceptsApnea/hypopnea indexPeriodic breathingHypopnea indexBreathing patternPattern abnormalitiesHeart failure patientsCheyne-Stokes respirationNight sleep studiesApnea indexFailure patientsPatient populationIndividual patientsSleep studiesPeriodicity indexSleep laboratoryBreathingPatientsAbnormalitiesSleepSpectral analytic techniquesFuture studiesHigh correlationPreliminary studyIndexApneaThe importance of nasal resistance in obstructive sleep apnea syndrome.
Kerr P, Millar T, Buckle P, Kryger M. The importance of nasal resistance in obstructive sleep apnea syndrome. Journal Of Otolaryngology 1992, 21: 189-95. PMID: 1404570.Peer-Reviewed Original ResearchConceptsObstructive sleep apnea syndromeUpper airway collapseSleep apnea syndromeNasal resistanceOSAS patientsApnea syndromeAirway collapseAmount of apneaArousals/hourChronic nasal obstructionNasal airflow resistanceBaseline data collectionNocturnal oxygenationOSAS populationTopical vasoconstrictorOSAS severityNasal obstructionClinical evidenceNocturnal polysomnographyPSG studiesSubjective improvementPosterior rhinomanometryElevated nasal resistanceConditions of baselineSleep architecture
1989
Heart Rate Response to Breath-Hold, Valsalva and Mueller Maneuvers in Obstructive Sleep Apnea
Hanly P, George C, Millar T, Kryger M. Heart Rate Response to Breath-Hold, Valsalva and Mueller Maneuvers in Obstructive Sleep Apnea. CHEST Journal 1989, 95: 735-739. PMID: 2924602, DOI: 10.1378/chest.95.4.735.Peer-Reviewed Original ResearchConceptsVoluntary respiratory maneuversObstructive sleep apneaHR responseSleep apneaRespiratory maneuversMueller maneuverOxygen saturationVagal toneAbsence of hypoxemiaArterial oxygen saturationHeart rate responseObstructive apneaMouth pressureApneaHR changesMale subjectsRate responseBreath holdSimilar durationValsalvaSignificant differencesSignificant correlationOSASMajor determinantWakefulness
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 ethanolSnoring in Normal Young Adults: Prevalence in Sleep Stages and Associated Changes in Oxygen Saturation, Heart Rate, and Breathing Pattern
Perez-Padilla J, West P, Kryger M. Snoring in Normal Young Adults: Prevalence in Sleep Stages and Associated Changes in Oxygen Saturation, Heart Rate, and Breathing Pattern. Sleep 1987, 10: 249-253. PMID: 3629087, DOI: 10.1093/sleep/10.3.249.Peer-Reviewed Original ResearchConceptsHeart rateContinuous snoringSleep stagesOxygen saturationPrevalence of snoringSignificant O2 desaturationMean heart rateNormal young adultsMean SaO2O2 desaturationDifferent pathogenesisDifferent sleep stagesNormal subjectsBreathing patternLight snorersBreathing frequencySnoringArrhythmiasYoung adultsPrevalenceStage 3Same sleep stageStage 2Associated ChangesSubjectsOxygenation and Breathing Pattern During Phasic and Tonic REM in Patients with Chronic Obstructive Pulmonary Disease
George C, West P, Kryger M. Oxygenation and Breathing Pattern During Phasic and Tonic REM in Patients with Chronic Obstructive Pulmonary Disease. Sleep 1987, 10: 234-243. PMID: 3629085, DOI: 10.1093/sleep/10.3.234.Peer-Reviewed Original ResearchMeSH KeywordsAgedElectroencephalographyFemaleHumansLung Diseases, ObstructiveMaleOxygenRespirationSleep StagesSleep, REMConceptsChronic obstructive pulmonary diseaseObstructive pulmonary diseaseTonic REMPhasic REMBreathing patternOxygen desaturationPulmonary diseaseSevere chronic obstructive pulmonary diseaseBreathing pattern changesAwake SaO2Nadir SaO2Total REMRespiratory neuronsMore desaturationMotor neuronsOxygen saturationREM sleepSaO2SaO2 differenceTransient decreaseRespiratory amplitudeNight studiesSleepDesaturationPatientsPerfluorochemical Artificial Blood as a Volume Expander in Hypoxemic Respiratory Failure in Dogs
Light R, Perez-Padilla R, Kryger M. Perfluorochemical Artificial Blood as a Volume Expander in Hypoxemic Respiratory Failure in Dogs. CHEST Journal 1987, 91: 444-449. PMID: 3816321, DOI: 10.1378/chest.91.3.444.Peer-Reviewed Original ResearchConceptsAdult respiratory distress syndromeArteriovenous O2 content differenceHypoxemic respiratory failureArterial O2 contentO2 content differenceVolume expandersRespiratory failureIntrapulmonary shuntPFC groupFluosol-DARespiratory distress syndromeSystemic vascular pressuresArterial O2 tensionEffective volume expanderTissue O2 deliveryOriginal disorderDistress syndromeCentral hemodynamicsPulmonary edemaCardiac outputContent differenceBlood productsVascular pressuresO2 deliveryPerfluorochemical artificial blood
1986
Alteration in Breathing Pattern with Progression of Chronic Obstructive Pulmonary Disease1,2
Loveridge B, West P, Kryger M, Anthonisen N. Alteration in Breathing Pattern with Progression of Chronic Obstructive Pulmonary Disease1,2. American Journal Of Respiratory And Critical Care Medicine 1986, 134: 930-934. PMID: 3777689, DOI: 10.1164/arrd.1986.134.5.930.Peer-Reviewed Original ResearchMeSH KeywordsForced Expiratory VolumeHumansLung Diseases, ObstructiveRespirationSpirometryTidal VolumeTime FactorsConceptsChronic obstructive pulmonary diseaseRespiratory failureSevere groupBreathing patternRespiratory inductance plethysmographStable chronic obstructive pulmonary diseaseRespiratory failure groupChronic obstructive pulmonaryObstructive pulmonary diseaseSignificant decreaseVT/TISeverity of diseasePulmonary diseaseAcute reliefFailure groupSupplemental O2Minute ventilationVentilatory controlTidal volumeModerate groupMechanical abnormalitiesInductance plethysmographBreathing frequencySeated positionFEV1Breathing during Sleep in Normal Pregnant Women1–3
Brownell L, West P, Kryger M. Breathing during Sleep in Normal Pregnant Women1–3. American Journal Of Respiratory And Critical Care Medicine 1986, 133: 38-41. PMID: 3942378, DOI: 10.1164/arrd.1986.133.1.38.Peer-Reviewed Original ResearchConceptsLate pregnancyMinimal arterial oxygen saturationMaternal oxygen desaturationFrequency of apneaRespiratory sleep studiesAlveolar-arterial differenceArterial oxygen saturationFunctional residual capacityLevels of progesteroneSleep-related apneaTotal apneaOxygen desaturationMaternal oxygenationComplete polysomnographyWk gestationPregnant womenCardiac outputLast trimesterPhysiologic changesResidual volumeSupine positionSleep studiesOxygen saturationPregnancyApnea
1985
Sleep and Respiration: Terminology and Methodology
West P, Kryger M. Sleep and Respiration: Terminology and Methodology. Clinics In Chest Medicine 1985, 6: 691-712. PMID: 3936667, DOI: 10.1016/s0272-5231(21)00406-8.ChaptersSleep and Control of Heart Rate
George C, Kryger M. Sleep and Control of Heart Rate. Clinics In Chest Medicine 1985, 6: 595-601. PMID: 3853478, DOI: 10.1016/s0272-5231(21)00397-x.Peer-Reviewed Original ResearchConceptsHeart rateTotal peripheral vascular resistanceSinus arrhythmiaExaggerated sinus arrhythmiaAutonomic nervous system activityPeripheral vascular resistanceTransient AV blockNormal hemoglobin concentrationAutonomic nervous activityNervous system activityHeart rate responseStages of sleepVascular resistanceBlood pressureVentricular functionCardiac outputAV blockRhythm disturbancesCarotid bodyLung inflationNervous activityREM sleepRespiratory arrhythmiaHemoglobin concentrationRespiratory rateSleep and Respiration: A Postscript
Kryger M, White D, Zwillich C, Robinson R, Guilleminault C. Sleep and Respiration: A Postscript. Clinics In Chest Medicine 1985, 6: 713-718. PMID: 3853480, DOI: 10.1016/s0272-5231(21)00407-x.ChaptersBreathing during Sleep in Patients with Interstitial Lung Disease1–3
Perez-Padilla R, West P, Lertzman M, Kryger M. Breathing during Sleep in Patients with Interstitial Lung Disease1–3. American Journal Of Respiratory And Critical Care Medicine 1985, 132: 224-9. PMID: 2411177, DOI: 10.1164/arrd.1985.132.2.224.Peer-Reviewed Original ResearchConceptsInterstitial lung diseaseTi/TtotControl subjectsSleep qualityREM sleepRapid shallow breathing patternSex-matched control subjectsIncidence of snoringShallow breathing patternIncidence of apneaPoor sleep qualityAwake SaO2Lung diseaseExpiratory timeInspiratory timeLung reflexesOxygen saturationGreater abnormalitiesNREM sleepSleep structureHypopnea periodsBreathing patternPatientsVolume indexSleep