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Results 5 - 10 About the split-night study: A split-night study is an overnight polysomnogram performed with a two-hour period of baseline sleep study recording, followed by a CPAP titration study if it is determined to be indicated by the presence of clinically significant sleep apnea.
*DEF = desaturation event frequency defined as number of episodes of oxyhemoglobin desaturation by ? 5%; ESS = Epworth sleepiness scale; PPV = positive predictive value; NPV = negative predictive value; Nadir O2sat = minimum oxyhemoglobin saturation; PSG = polysomnography; PSG1 = data obtained in the first half of the
15 Mar 2015 Rethinking AASM guideline for split-night polysomnography in Asian patients with obstructive sleep apnea. We divided the raw data (full-night study) into two parts and compared the first 2 h of sleep with the full night of sleep to evaluate the diagnostic precision and accuracy of the first 2 h of sleep.
Aside from the home sleep apnea test (HSAT)—which you may have already experienced—there are three main in-lab, overnight sleep tests you might encounter. Many people start with an overnight or nocturnal polysomnogram (NPSG), a baseline diagnostic test. Others may already have an apnea diagnosis and return
out of a sleep laboratory facility or attended in a sleep laboratory facility. Subject: Split Night Sleep Studies for CPAP Titration for Obstructive Sleep. Apnea Syndrome (OSAS). Original. Effective. Date: 4/2/14. Guidance Number: MCG-159. Revision Date(s):. Medical Coverage. Guidance. Approval Date: 4/2/14
We suggest that when the initial polysomnogram is negative and clinical suspicion for OSA remains, a second polysomnogram be considered for the diagnosis of OSA. (WEAK). Keywords: obstructive sleep apnea, diagnosis, polysomnography, home sleep testing. Citation: Kapur VK, Auckley DH, Chowdhuri S, Kuhlmann
16 Feb 2015 2.3 PSG (Facility Sleep Study) - Coding. 8. 2.4 In-Laboratory Polysomnography - Indications. 9. 2.5 Split-Night Study or Two Night Study. 11. 2.6 Repeat Sleep testing. 12. 2.7 Experimental and Investigational. 12. SL-3 TREATMENT of OBSTRUCTIVE SLEEP APNEA. 3.1 Treatment of Obstructive Sleep
20 May 2014 Split-night. • Restricted duration. Type 1. Polysomnography study (PSG) requires the continuous recording of multiple physiological variables to measure sleep architecture and cardio-respiratory function during sleep. This type of study is the reference standard against which other respiratory monitors are
grade of optimal or good and, if it is a split-night PSG study, it fails to meet AASM criteria (i.e., titration duration should be >3 hr). Keywords: PAP; titration; continuous positive airway pressure; CPAP; bilevel positive airway pressure; BPAP; obstructive sleep apnea; sleep related breathing disorder; sleep disordered breathing.
A split-night PAP titration is indicated for patients who are diagnosed with severe OSA, which is defined as an AHI of at least 40 documented during a minimum of two (2) hours of diagnostic PSG. A split-night study may be considered in a patient with an AHI of 20 to 40, based on clinical judgment (3).
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