Trial reportSleep & breathing = Schlaf & Atmung2023
The changes of AHI after long-term CPAP in patients with comorbid OSA and cardiovascular disease.
Trial report in Sleep & breathing = Schlaf & Atmung, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00738179 (Sleep Apnea cardioVascular Endpoints Study - Investigating the Effectiveness of Treatment With CPAP vs Standard Care in Reducing CV Morbidity and Mortality in Patients With Co-existing CV Disease and Moderate-severe Obstructive Sleep Apnea.), which is not on this map. Cited by 2 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Sleep Apnea cardioVascular Endpoints Study - Investigating the Effectiveness of Treatment With CPAP vs Standard Care in Reducing CV Morbidity and Mortality in Patients With Co-existing CV Disease and Moderate-severe Obstructive Sleep Apnea.
Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it, 1 citations in OpenAlex.
- Effects of Continuous Positive Airway Pressure on Surrogate, Intermediate, and Functional Cardiovascular Outcomes in Obstructive Sleep Apnea: An Umbrella Review of Systematic Reviews and Meta-Analyses.Medicina (Kaunas, Lithuania) · 2026Pooled it
- Deep learning approaches for image-based snoring sound analysis in the diagnosis of obstructive sleep apnea-hypopnea syndrome: A systematic review.World journal of radiology · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo evaluate the effect of long-term continuous positive airway pressure (CPAP) treatment on disease severity of obstructive sleep apnea (OSA).
methodsWe analyzed results from the Sleep Apnea and Cardiovascular Events (SAVE) study involving participants recruited at the Guangdong Provincial People's Hospital, China. Participants were aged 45-75 years with a history of cardiac or cerebrovascular disease. OSA was confirmed by home sleep apnea testing (HSAT). Participants were randomized to receive CPAP plus standard cardiovascular care (CPAP group) or standard care alone (UC group) and followed for several years. At the study conclusion, surviving participants were invited to repeat HSAT. Changes in OSA indicators were compared by independent samples t-tests and subgroup analysis was implied among groups stratified by OSA severity.
resultsOne hundred two adults were recruited (51 per group) and followed for 48.0 ± 14.5 months. Daily CPAP usage in the CPAP group was 4.1 ± 1.9 h. AHI decreased from baseline to end-of-study in both CPAP and UC groups (- 5.0 (- 12.5,2.0), P = 0.000; - 4.0 (- 12.5,1.5), P = 0.007, respectively), with no between-group difference (P = 0.453). An improvement in nadir SpO
conclusionLong-term CPAP use did not result in clinically significant changes in AHI or ODI overall but showed variable effects stratified by OSA severity. CLINICAL
trial registrationRegistry: Clinical Trials.gov, title: Continuous Positive Airway Pressure Treatment of Obstructive Sleep Apnea to Prevent Cardiovascular Disease (SAVE), URL: www. CLINICALTRIALS: gov , identifier: NCT00738179.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.