|Basic InformationLatest News|Seeing Video of Self Struggling to Breathe Ups CPAP AdherenceVideotaping Sleepers Raises CPAP UseAAIC: Alzheimer Biomarkers Up With Sleep Disordered BreathingCPAP Mask Not a Prescription for Heart TroublesHealth Tip: Get the Facts on Alcohol and SleepHealth Tip: If You Have Sleep ApneaSleep Apnea Linked to Diabetic Retinopathy in Type 2 DiabetesSLEEP: Helpful Hints From Bed Partner Can Exacerbate InsomniaBed Partner Often Fuels Loved One's InsomniaLoneliness May Lead to Sleepless NightsWarming Climate, More Sleepless Nights?Sleepless Nights Could Pose Heart Risk DangersSleep Apnea Reporting Low Among Individuals Aged ≥65Sleep Apnea May Boost Odds of Irregular HeartbeatDocs May Not Spot Sleep Apnea, Insomnia in BlacksSleep Apnea May Boost Pregnancy ComplicationsSleepless Nights, Unhealthy Hearts?Curbing Sleep Apnea Might Mean Fewer Night Trips to BathroomHealth Tip: Slipping Back Into SleepPast Prescribing Behavior Predicts Choice of Insomnia RxWhat Guides Docs' Sleeping Pill Picks? 'Same Old Same Old,' Study SaysSkimp on Sleep and You Just May Wind Up SickSleepless Nights Linked to Asthma Later in LifeThe ABCs of Good ZzzzzsLevel 3 Polysomnography Data Noninferior for OSAJury Still Out on Whether to Screen All Adults for Sleep ApneaHealth Tip: 5 Things to Help You Sleep SoundlyMany Misuse OTC Sleep Aids: SurveyHomeless, And Often Sleepless TooHealth Tip: Struggling in the Morning?VA ECHO Program Feasible for Management of Sleep DisordersStudy Finds Genetic Link Between Sleep Problems and ObesityStudy Sees Link Between Insomnia, AsthmaWeb-Based Help for Insomnia Shows PromiseHealth Tip: When Sleep is InterruptedCPAP Improves Asthma Control, QoL for Adults With Asthma, OSASleep Apnea May Boost Risk for Post-Op ProblemsHome-Based CBT Program for Sleep Feasible in PregnancyHealth Tip: Making the Transition to SleepSleep Troubles, Heart Troubles?Why Some Women Find Good Sleep Tough to GetSleep Apnea Diagnoses Up Among Outpatients From 1993 to 2010For Those With Sleep Apnea, Maybe It's Time for a Driving TestMouse Study Suggests Brain Circuit Involved in Sleep-Wake CycleRisk of Cardiovascular Events Not Reduced With CPAP UseNighttime Sleep Disturbance Common in Chronic PainResistant Hypertension Linked to Increased Risk of Sleep ApneaDrowsy Driving Causes 1 in 5 Fatal Crashes: ReportStudy Links Sleep Problems to Stroke Risk, RecoveryAssociated Professional Sleep Societies, June 5-9, 2010Questions and AnswersLinksBook Reviews
Level 3 Polysomnography Data Noninferior for OSA
Updated: Jan 27th 2017
FRIDAY, Jan. 27, 2017 (HealthDay News) -- For patients with suspected obstructive sleep apnea (OSA), use of level 3 (L3) polysomnography (PSG) data with fewer recording channels is noninferior to level 1 (L1) PSG, according to a study published online Jan. 24 in the Annals of Internal Medicine.
Ching Li Chai-Coetzer, M.B.B.S., Ph.D., from Flinders University in Adelaide, Australia, and colleagues compared patient outcomes after PSG versus limited-channel studies in a randomized noninferiority study involving patients with suspected OSA. Sleep study information disclosed to sleep physicians included L1 PSG data (135 patients), L3 data (airflow, thoracoabdominal bands, body position, electrocardiography, and oxygen saturation; 136 patients), or level 4 (L4) data (oxygen saturation and heart rate; 135 patients).
The researchers found that the change in Functional Outcomes of Sleep Questionnaire score was not inferior for L3 or L4 versus L1 (mean difference [MD], 0.01 [95 percent confidence interval, −0.47 to 0.49; P = 0.96] and −0.46 [95 percent confidence interval, −0.94 to 0.02; P = 0.058], respectively; noninferiority margin [NIM], −1.0). Change in Epworth Sleepiness Scale score was not inferior for L3 versus L1 (MD, 0.08; 95 percent confidence interval, −0.98 to 1.13; P = 0.89), but was inconclusive for L4 versus L1 (MD, 1.30; 95 percent confidence interval, 0.26 to 2.35; P = 0.015) (NIM, 2.0). There was less improvement in the Sleep Apnea Symptoms Questionnaire (P = 0.018), less continuous positive airway pressure use (P = 0.04), and lower physician diagnostic confidence for L4 versus L1 (P = 0.003).
"The results support manually scored L3 testing in routine practice," the authors write. "Poorer outcomes with L4 testing may relate, in part, to reduced physician confidence."
Several authors disclosed financial ties to the pharmaceutical and medical technology industries.
Full Text (subscription or payment may be required)
Editorial (subscription or payment may be required)
This article: Copyright © 2017 HealthDay. All rights reserved.