Study Objectives: The oxygen desaturation index (ODI) is an important measure of sleep-disordered breathing during polysomnography (PSG); however, the AASM Manual (V3) does not specify whether to include oxygen desaturations occurring during wake epochs. Additionally, an ODI obtained from PSG can differ from an ODI using home sleep apnea tests (HSATs) that do not measure sleep, hampering diagnostic and treatment decision reliability. This study aimed to (1) compare an ODI that included all desaturations with an ODI that excluded desaturations occurring during wake epochs in PSG and (2) compare ODIs obtained from PSG with HSAT.
Methods: 100 consecutive PSGs for investigation of obstructive sleep apnea were compared. ODIs were calculated including all desaturations (ODI) and by excluding desaturations entirely during wake epochs (ODI). Additionally, we compared ODI with an ODI calculated using monitoring time as the denominator (ODI).
Results: The median (interquartile range) 3% ODI for ODI was 22.8 (13.1, 44.1) events/h and ODI was 17.6 (11.5, 35.2) events/h (median difference: -3.9 events/h [-8.2, -0.9]; 21.0% [8.7%, 33.2%]). This discrepancy was larger with increasing ODI and decreasing sleep efficiency. The ODI was 17.4 (11.3, 35.2) events/h and the median reduction in ODI vs ODI was -4.5 (-10.9, -2.0) events/h (21.6%; 11.1%, 33.8).
Conclusions: ODI was significantly reduced when desaturations in wake epochs were excluded, and when ODI was based on monitoring time rather than sleep time, with the potential for underestimation of disease severity. Results suggest that ODI can differ substantially depending on the calculation and study type used, and that there is a need for standardization to ensure consistent diagnosis and treatment outcomes.
Citation: Whenn CB, Wilson DL, Ruehland WR, Churchward TJ, Worsnop C, Tolson J. The impact of study type and sleep measurement on oxygen desaturation index calculation. 2024;20(5):709-717.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11063702 | PMC |
| http://dx.doi.org/10.5664/jcsm.10982 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Objectives: The major emphasis of physical therapy in patient evaluation is the assessment of physical function, and the Patient-Specific Functional Scale (PSFS) is one of the most commonly used instruments for this purpose. Therefore, the present study aims to translate and cross-culturally adapt the PSFS into Persian and test its psychometric properties in patients with chronic low back pain (CLBP).
Methods: The PSFS was translated from English to Persian and cross-culturally adapted in accordance with the study by Beaton et al.
Is it possible to return to skiing following long-construct spinal deformity surgery?
Spine Deform
January 2025
Department of Orthopaedic Surgery, Columbia University Irving Medical Center, NewYork-Presbyterian Och Spine Hospital, New York, NY, 10032, USA.
Background: Alpine skiing requires flexibility, endurance, strength and rotational ability, which may be lost after long fusions to the pelvis for adult spinal deformity (ASD). ASD patients may worry about their ability to return to skiing (RTS) postoperatively. There is currently insufficient data for spine surgeons to adequately address questions about when, or if, their patients might RTS.
View Article and Find Full Text PDFDifferences in radiographic and clinical outcomes of different oblique lumbar interbody fusions for lumbar degenerative diseases: a systematic review and Bayesian network meta-analysis.
Neurosurg Rev
January 2025
Nanjing TCM Hospital Affiliated to Nanjing University of Traditional Chinese Medicine, 157 Daming Road, Nanjing, Qinhuai District, 210022, China.
To systematically evaluate the differences in the clinical efficacy of lumbar degenerative disorders (LDDs) treatment between oblique lumbar interbody fusion with percutaneous pedicle screw fixation (OLIF-PF), OLIF stand-alone (OLIF-SA), and OLIF with anterolateral screw fixation (OLIF-AF). A systematic search was conducted on both English and Chinese databases, wherein the literature was screened based on title, abstract, and full text. Literature that met the inclusion criteria was assessed for quality and relevant information was extracted.
View Article and Find Full Text PDFPain and Functional Outcome After Microsurgical Decompression of Lumbar Spinal Stenosis: Very Short- and Long-Term Postoperative Analysis.
Global Spine J
January 2025
Department of Science, Research and Education, BG Klinikum Bergmannstrost Halle, Halle, Germany.
Study Design: Multicenter, prospective observational cohort study.
Objectives: 109 patients with lumbar spine stenosis (LSS) undergoing minimally invasive decompression in 6 different centers (Germany, Italy, USA).
Methods: The demographic, surgical and clinical data was collected.
Staged versus Simultaneous Surgery for Adult Spinal Deformity - A Systematic Review and Meta-analysis.
Spine (Phila Pa 1976)
January 2025
Department of Orthopaedics, All India Institute of Medical Sciences, Rishikesh, India.
Study Design: Systematic review and meta analysis.
Objective: To assess the safety and efficacy of staged versus same-day spinal fusion surgeries in Adult spinal deformity (ASD).
Background: ASD surgeries are associated with high complication rates, ranging from 10% to 40%.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!