2018
Restless legs syndrome and periodic limb movements during sleep in the Multi-Ethnic Study of Atherosclerosis
Doan TT, Koo BB, Ogilvie RP, Redline S, Lutsey PL. Restless legs syndrome and periodic limb movements during sleep in the Multi-Ethnic Study of Atherosclerosis. Sleep 2018, 41: zsy106. PMID: 29860522, PMCID: PMC6093310, DOI: 10.1093/sleep/zsy106.Peer-Reviewed Original ResearchConceptsRestless legs syndromePrevalence of RLSConcurrent restless legs syndromePeriodic limb movementsMulti-Ethnic StudyLegs syndromeObesity statusOdds of RLSLimb movementsPrevalence of PLMSCommunity-based sampleRace/ethnicityRLS symptomsClinical criteriaAdjusted modelPLMSStudy participantsPrevalenceOlder individualsCross-sectional dataAtherosclerosisSexSyndromeWhite participantsSleepDemoralization in Parkinson disease
Koo BB, Chow CA, Shah DR, Khan FH, Steinberg B, Derlein D, Nalamada K, Para KS, Kakade VM, Patel AS, de Figueiredo JM, Louis ED. Demoralization in Parkinson disease. Neurology 2018, 90: e1613-e1617. PMID: 29618626, PMCID: PMC5931805, DOI: 10.1212/wnl.0000000000005425.Peer-Reviewed Original ResearchConceptsDisease Rating ScaleParkinson's diseasePD cohortPatient Health Questionnaire-9 scoreOutpatient movement disorder clinicYounger ageUnified Parkinson's Disease Rating ScaleParkinson's Disease Rating ScaleMovement Disorders ClinicPart III scoreStepwise logistic regressionOverall cohortMotor dysfunctionDisorders ClinicDiagnostic criteriaTreatment approachesScale scoreLogistic regressionRating ScaleCohortControl participantsMarital statusPsychosomatic researchDepressed individualsDepression
2017
Polysomnographic phenotypes and their cardiovascular implications in obstructive sleep apnoea
Zinchuk AV, Jeon S, Koo BB, Yan X, Bravata DM, Qin L, Selim BJ, Strohl KP, Redeker NS, Concato J, Yaggi HK. Polysomnographic phenotypes and their cardiovascular implications in obstructive sleep apnoea. Thorax 2017, 73: 472. PMID: 28935698, PMCID: PMC6693344, DOI: 10.1136/thoraxjnl-2017-210431.Peer-Reviewed Original ResearchMeSH KeywordsAcute Coronary SyndromeAgedCardiovascular DiseasesCluster AnalysisCross-Sectional StudiesFemaleHumansIschemic Attack, TransientLongitudinal StudiesMaleMiddle AgedMortalityPhenotypePolysomnographyProportional Hazards ModelsRisk AssessmentSeverity of Illness IndexSleep Apnea, ObstructiveStrokeConceptsObstructive sleep apnoeaCardiovascular outcomesPolysomnographic featuresSleep apnoeaPolysomnographic dataIncident transient ischemic attackUS Veteran cohortTransient ischemic attackAcute coronary syndromeAdverse cardiovascular outcomesPeriodic limb movementsOSA severity classificationPolysomnographic phenotypeCoronary syndromeIschemic attackCardiovascular implicationsOSA phenotypesOSA evaluationPathophysiological domainsPoor sleepMild/Patient clustersVeteran cohortSurvival analysisCombined outcome
2016
Restless Legs Syndrome and Depression: Effect Mediation by Disturbed Sleep and Periodic Limb Movements
Koo BB, Blackwell T, Lee HB, Stone KL, Louis ED, Redline S, Group O. Restless Legs Syndrome and Depression: Effect Mediation by Disturbed Sleep and Periodic Limb Movements. American Journal Of Geriatric Psychiatry 2016, 24: 1105-1116. PMID: 27526989, PMCID: PMC5241001, DOI: 10.1016/j.jagp.2016.04.003.Peer-Reviewed Original ResearchConceptsSevere restless legs syndromeRestless legs syndromePeriodic limb movementsDepressive symptomsLegs syndromeSleep disturbancesMild restless legs syndromeFurther adjustmentAssociation of RLSLimb movementsCardiovascular risk factorsApnea-hypopnea indexBody mass indexPotential mediatorsCross-sectional analysisEffect sizeDopaminergic medicationMass indexOsteoporotic fracturesPLMS indexDisturbed sleepRisk factorsGDS scoresPhysical activitySleep efficiencyObservational Study of Obstructive Sleep Apnea in Wake-Up Stroke: The SLEEP TIGHT Study
Koo BB, Bravata DM, Tobias LA, Mackey JS, Miech EJ, Matthias MS, Stahl SM, Sico JJ, Fragoso C, Williams LS, Lampert R, Qin L, Yaggi HK. Observational Study of Obstructive Sleep Apnea in Wake-Up Stroke: The SLEEP TIGHT Study. Cerebrovascular Diseases 2016, 41: 233-241. PMID: 26811929, DOI: 10.1159/000440736.Peer-Reviewed Original ResearchMeSH KeywordsAgedBiomarkersBlood PressureBlood Pressure Monitoring, AmbulatoryBrain IschemiaChi-Square DistributionCholesterol, LDLConnecticutCross-Sectional StudiesFemaleHumansIndianaIschemic Attack, TransientLogistic ModelsMaleMiddle AgedOdds RatioOxygenPolysomnographyPrevalenceRandomized Controlled Trials as TopicRisk FactorsSeverity of Illness IndexSex FactorsSleepSleep Apnea, ObstructiveStrokeSympathetic Nervous SystemWakefulnessConceptsObstructive sleep apneaDiastolic blood pressureSevere obstructive sleep apneaLow-density lipoproteinBlood pressureSleep apneaSerum catecholaminesAmbulatory blood pressure monitoringBaseline diastolic blood pressureMean body mass indexB-type natriuretic peptideHigher diastolic blood pressureMore oxygen desaturationTransient ischemic attackIschemic stroke patientsAmbulatory blood pressureHistory of strokeBody mass indexC-reactive proteinBlood pressure monitoringOxygen desaturation eventsGender-stratified analysesCross-sectional analysisIschemic attackOSA frequency
2013
Characteristics of Wake-up Stroke
Tanimoto A, Mehndiratta P, Koo BB. Characteristics of Wake-up Stroke. Journal Of Stroke And Cerebrovascular Diseases 2013, 23: 1296-1299. PMID: 24361192, DOI: 10.1016/j.jstrokecerebrovasdis.2013.10.021.Peer-Reviewed Original ResearchConceptsIschemic strokeCholesterol profileRisk factorsNon-WUS patientsStroke risk factorsDisease mechanismsWUS patientsBerlin questionnaireFrequent snoringSleep apneaMedical historyLipid profileSleep characteristicsStrokeStroke characteristicsDemographic informationPatientsAfrican AmericansQuestionnaireApneaSnoringSeverity
2011
Restless legs syndrome: relationship between prevalence and latitude
Koo BB. Restless legs syndrome: relationship between prevalence and latitude. Sleep And Breathing 2011, 16: 1237-1245. PMID: 22210354, DOI: 10.1007/s11325-011-0640-8.Peer-Reviewed Original ResearchAssociation of Incident Cardiovascular Disease With Periodic Limb Movements During Sleep in Older Men
Koo BB, Blackwell T, Ancoli-Israel S, Stone KL, Stefanick ML, Redline S, Group F. Association of Incident Cardiovascular Disease With Periodic Limb Movements During Sleep in Older Men. Circulation 2011, 124: 1223-1231. PMID: 21859975, PMCID: PMC3265562, DOI: 10.1161/circulationaha.111.038968.Peer-Reviewed Original ResearchConceptsCause cardiovascular diseaseCoronary heart diseasePeripheral arterial diseaseIncident cardiovascular diseasePeriodic limb movementsArterial diseaseCardiovascular diseaseCerebrovascular diseaseHeart diseasePLMS frequencyRelative hazardCommunity-dwelling elderly menConventional cardiovascular risk factorsPeripheral arterial disease eventsLimb movementsElderly male cohortCardiovascular risk factorsBody mass indexProportional hazards regressionRisk of incidentPrevalent hypertensionCardiovascular riskMass indexStudy cohortHazards regression
2008
Rapid Eye Movement-Related Sleep-Disordered Breathing Influence of Age and Gender
Koo BB, Patel SR, Strohl K, Hoffstein V. Rapid Eye Movement-Related Sleep-Disordered Breathing Influence of Age and Gender. CHEST Journal 2008, 134: 1156-1161. PMID: 18812455, PMCID: PMC7448537, DOI: 10.1378/chest.08-1311.Peer-Reviewed Original ResearchConceptsNREM AHIApnea-hypopnea indexSleep-disordered breathingREM apnea-hypopnea indexBody mass indexSDB prevalenceRapid eye movement (REM) sleepFace of obesityUniversity Sleep LaboratoryEye movement sleepRapid eye movementAge-dependent riseAge-related decreaseMass indexFemale sexBMI increaseMovement sleepRisk factorsFemale hormonesNREM sleepSleep laboratoryPrevalence decreasesBreathing influencesYoung womenWomen