2023
0841 Feasibility of Actigraphy during a Daytime Bright Pilot Study in the Medical ICU
Lukas M, Doyle M, Intihar T, Wright K, Redeker N, Pisani M, Yaggi H, Knauert M. 0841 Feasibility of Actigraphy during a Daytime Bright Pilot Study in the Medical ICU. Sleep 2023, 46: a370-a371. DOI: 10.1093/sleep/zsad077.0841.Peer-Reviewed Original ResearchRest-activity patternsCircadian quotientMICU patientsPilot studyCosinor analysisStudy days 1Illness severity scoresCritical illnessMedical ICUMethods PatientsOngoing RCTsMean ageSeverity scorePatient outcomesActigraphy recordingsPatientsDay 1Patient careCircadian disruptionResults ThirteenActigraphyTotal recordingCircadian alignmentCircadian misalignmentMesor0842 Feasibility of daytime bright light exposure and urinary 6-sulfatoxymelatonin profiling in the medical ICU: A pilot study
Intihar T, Doyle M, Lukas M, Wright K, Redeker N, Pisani M, Yaggi H, Knauert M. 0842 Feasibility of daytime bright light exposure and urinary 6-sulfatoxymelatonin profiling in the medical ICU: A pilot study. Sleep 2023, 46: a371-a371. DOI: 10.1093/sleep/zsad077.0842.Peer-Reviewed Original ResearchMedical intensive care unitMICU patientsDaytime bright light exposureStudy days 1Intensive care unitIllness severity scoresBright light exposureWarrants further investigationCircadian outcomesMedical ICUCritical illnessIll patientsOngoing RCTsCare unitCircadian timingMean ageMelatonin useCircadian phaseSeverity scorePilot trialSufficient urinePatientsStudy daysBright lightDay 1
2022
Sleep in Critical Illness: Future Directions
Knauert M, Parthasarathy S. Sleep in Critical Illness: Future Directions. 2022, 291-309. DOI: 10.1007/978-3-031-06447-0_17.ChaptersIntensive care unitCritical illnessSleep disruptionSleep promotionCircadian disruptionAcute illness factorsCritical care outcomesCritical illness outcomesAspects of sleepICU sleepCare unitICU cliniciansIllness factorsPatient outcomesMethodologic limitationsIllness outcomesSleep interventionsCare outcomesClinical practiceSleep measuresSleep deficiencyNatural historyLimited evidenceSleepIllnessBest Practice for Improving Sleep in the ICU. Part I: Non-pharmacologic
Korwin A, Knauert M. Best Practice for Improving Sleep in the ICU. Part I: Non-pharmacologic. 2022, 231-248. DOI: 10.1007/978-3-031-06447-0_14.ChaptersIntensive care unitICU patientsNormal sleepCritical care treatmentNon-pharmacologic therapiesNon-pharmacologic interventionsMost ICU patientsAbnormal circadian rhythmPoor quality sleepCircadian functionAcute illnessCritical illnessPatient characteristicsIll adultsCare unitChronotherapeutic interventionsCare treatmentSleep preferenceCurrent evidencePatient careCircadian disruptionSleepPatientsFuture interventionsPractice change0583 Tolerance and feasibility of daytime bright light in medical intensive care unit patients
Intihar T, Samojedny V, Korwin A, Knauert M. 0583 Tolerance and feasibility of daytime bright light in medical intensive care unit patients. Sleep 2022, 45: a256-a257. DOI: 10.1093/sleep/zsac079.580.Peer-Reviewed Original ResearchMICU patientsCritical illnessMedical ICUControl trialChronic Health Evaluation II scoreMedical intensive care unit patientsIntensive care unit patientsMean patient ageCare unit patientsSeverity of illnessBright light exposureRandomized control trialOngoing randomized control trialAcute PhysiologyII scoreUsual carePatient ageUnit patientsIll patientsBright-light interventionSixteen patientsPoor outcomeClinical investigationBright lightPatients
2021
681 Sleep Apnea Severity and COVID-19 Hospitalization Outcomes: Interim Analysis
Mansour W, Knauert M. 681 Sleep Apnea Severity and COVID-19 Hospitalization Outcomes: Interim Analysis. Sleep 2021, 44: a266-a266. PMCID: PMC8135644, DOI: 10.1093/sleep/zsab072.679.Peer-Reviewed Original ResearchModerate-severe OSA groupCOVID-19 illnessComposite outcomeSleep apneaMild diseaseInterim analysisCritical illnessHospitalization outcomesOSA groupRisk factorsMortality rateRetrospective electronic medical chart reviewElectronic medical chart reviewModerate-severe diseaseSevere sleep apneaMedical chart reviewOverall mortality rateSleep apnea severityCOVID-19 comorbiditiesCommon risk factorsLogistic regression analysisHigh mortality rateSignificant differencesMedian LOSSevere OSA
2020
Pilot Observational Study to Detect Diurnal Variation and Misalignment in Heart Rate Among Critically Ill Patients
Knauert MP, Murphy TE, Doyle MM, Pisani MA, Redeker NS, Yaggi HK. Pilot Observational Study to Detect Diurnal Variation and Misalignment in Heart Rate Among Critically Ill Patients. Frontiers In Neurology 2020, 11: 637. PMID: 32760341, PMCID: PMC7373742, DOI: 10.3389/fneur.2020.00637.Peer-Reviewed Original ResearchMedical ICU admissionIntensive care unitHeart rateIll patientsICU admissionCircadian alignmentMedical record chart abstractionsProspective observational cohort studyCircadian disruptionMedical ICU patientsObservational cohort studyCritical illness outcomesPilot observational studyContinuous telemetric monitoringChart abstractionExploratory analysisCohort studyCritical illnessHospital admissionICU patientsCare unitPatient interviewsFrequent bloodOdds ratioObservational study
2019
Circadian Biology and Its Importance to Intensive Care Unit Care and Outcomes
Gao C, Knauert M. Circadian Biology and Its Importance to Intensive Care Unit Care and Outcomes. Seminars In Respiratory And Critical Care Medicine 2019, 40: 629-637. PMID: 31826263, DOI: 10.1055/s-0039-1698394.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsIll patientsIntensive care unit careIntensive care unit practiceCircadian rhythmCurrent ICU practiceLow-risk interventionNumerous adverse outcomesUnit careCritical illnessImmune compromiseCardiovascular instabilityMetabolic derangementsAdverse outcomesICU practiceUnit practicesSleep disruptionCare improvementPatientsOutcomesSleepRhythmBright lightDaysCircadian biologyDeliriumChapter 19 Sleep in Hospitalized Patients
Knauert M, Pisani M. Chapter 19 Sleep in Hospitalized Patients. 2019, 411-437. DOI: 10.1016/b978-0-12-813014-8.00019-6.ChaptersHospitalized patientsSleep disturbancesSleep disruptionSeverity of illnessLong-term health impactsPatient care activitiesMedical comorbiditiesCritical illnessPatient factorsCommon complaintSleep historyPatientsCare activitiesSleep deprivationIllnessLittle dataCircadian misalignmentHealth impactsAvailable literatureComorbiditiesHospitalSleepComplaintsTrialsSeverity
2018
Association between death and loss of stage N2 sleep features among critically Ill patients with delirium
Knauert MP, Gilmore EJ, Murphy TE, Yaggi HK, Van Ness PH, Han L, Hirsch LJ, Pisani MA. Association between death and loss of stage N2 sleep features among critically Ill patients with delirium. Journal Of Critical Care 2018, 48: 124-129. PMID: 30179762, PMCID: PMC6226351, DOI: 10.1016/j.jcrc.2018.08.028.Peer-Reviewed Original ResearchConceptsICU patientsIll patientsOdds ratioHigher oddsSleep spindlesIntensive care unit outcomesGrade of encephalopathySignificant sleep disruptionWorse ICU outcomeMedical ICU patientsAcute brain injuryObservational cohort studySedative-hypnotic useImportant prognostic valueLength of stayStage N2 sleepK-complexesCohort studyCritical illnessHospital dischargeRankin ScaleICU outcomesPrognostic valueSevere gradesMedical records
2017
Sleep Disturbance after Hospitalization and Critical Illness: A Systematic Review
Altman MT, Knauert MP, Pisani MA. Sleep Disturbance after Hospitalization and Critical Illness: A Systematic Review. Annals Of The American Thoracic Society 2017, 14: 1457-1468. PMID: 28644698, PMCID: PMC5711402, DOI: 10.1513/annalsats.201702-148sr.BooksConceptsCritical illnessHospital dischargeSleep disturbancesRisk factorsSystematic reviewIntensive care unit admissionCare unit admissionIll adult patientsTime pointsCritical illness survivorsObjective sleep parametersQuestionnaire studyUnit admissionAdult patientsHospital factorsIll patientsPrimary outcomePrehospital factorsImpaired qualityObjective measurement toolsPsychological comorbiditiesAbnormal sleepMultiple time pointsPolysomnography studiesPoor sleep
2015
Sleep Loss and Circadian Rhythm Disruption in the Intensive Care Unit
Knauert MP, Haspel JA, Pisani MA. Sleep Loss and Circadian Rhythm Disruption in the Intensive Care Unit. Clinics In Chest Medicine 2015, 36: 419-429. PMID: 26304279, DOI: 10.1016/j.ccm.2015.05.008.BooksConceptsCritical illnessSleep disruptionAppropriate administrative supportIntensive care unit environmentIntensive care unitCircadian rhythm disruptionDelirium reductionIll patientsCare unitPharmacologic interventionsSleep disturbancesRhythm disruptionCare deliveryMultidisciplinary strategyUnit environmentSleep lossIllnessDisruptionPatientsEffective strategySleepEnvironmental factors