2002
Low body stores of iron and restless legs syndrome: a correctable cause of insomnia in adolescents and teenagers
Kryger MH, Otake K, Foerster J. Low body stores of iron and restless legs syndrome: a correctable cause of insomnia in adolescents and teenagers. Sleep Medicine 2002, 3: 127-132. PMID: 14592231, DOI: 10.1016/s1389-9457(01)00160-5.Peer-Reviewed Original ResearchRestless legs syndromePercent iron saturationIron storesSubjective sleep latencyFerritin levelsLegs syndromeSleep latencySymptoms of RLSBody storesLow serum ferritin levelsTotal iron binding capacitySerum ferritin levelsSevere sleep onset insomniaLow body storesIron binding capacityHours of sleepSleep onset insomniaOral ironCorrectable causeExcessive daytimeSerum ferritinChronic insomniaSerum ironIron statusOnset insomnia
1997
Randomized, double-blind, placebo-controlled crossover trial of modafinil in the treatment of excessive daytime sleepiness in narcolepsy
Broughton R, Fleming J, George C, Hill J, Kryger M, Moldofsky H, Montplaisir J, Morehouse R, Moscovitch A, Murphy W. Randomized, double-blind, placebo-controlled crossover trial of modafinil in the treatment of excessive daytime sleepiness in narcolepsy. Neurology 1997, 49: 444-451. PMID: 9270575, DOI: 10.1212/wnl.49.2.444.Peer-Reviewed Original ResearchConceptsPlacebo-controlled crossover trialOnly significant adverse effectPlacebo-controlled trialExcessive daytime somnolenceMean sleep latencyPeriodic leg movementsEpworth Sleepiness ScaleDaytime sleep episodesInternational diagnostic criteriaSignificant adverse effectsHypertensive patientsMore nauseaBlood pressureDaily doseDaytime somnolenceExcessive daytimeSleep apneaCrossover trialSleep latencyModafinil 200Nocturnal sleepPatient's abilitySleepiness ScaleSleep initiationHeart rate
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
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 L-Tryptophan on Daytime Sleep Latency in Normals: Correlation with Blood Levels
George C, Millar T, Hanly P, Kryger M. The Effect of L-Tryptophan on Daytime Sleep Latency in Normals: Correlation with Blood Levels. Sleep 1989, 12: 345-353. PMID: 2669092, DOI: 10.1093/sleep/12.4.345.Peer-Reviewed Original ResearchConceptsSleep latencyBlood levelsRandom double-blind fashionRapid eye movement (REM) sleepDaytime sleep latencyL-tryptophan's effectsDouble-blind fashionEye movement sleepL-tryptophanSlow-wave sleepL-tryptophan levelsObjective sleepiness measuresKynurenic acidMovement sleepHealthy volunteersWave sleepDrug conditionsSeparate daysSleepSleepiness measuresPlaceboSignificant correlationEssential amino acidsDoseUrine