Journal
CHEST
Volume 142, Issue 2, Pages 440-447Publisher
ELSEVIER
DOI: 10.1378/chest.11-2089
Keywords
-
Categories
Funding
- Philips Respironics (Murrysville, PA)
- Philips Respironics
Ask authors/readers for more resources
Background: The coexistence of obstructive sleep apnea (OSA) and central sleep apnea (CSA) and Cheyne-Stokes respiration (CSR) is common in patients with heart failure (HF). While CPAP improves CSA/CSR by about 50%, maximal suppression is crucial in improving clinical outcomes. Auto-servoventilation (ASV) effectively suppresses CSA/CSR in HF, but few trials have been performed in patients with coexisting OSA and CSA/CSR. Our objective was to evaluate a randomized, controlled trial to compare the efficacy of ASV and CPAP in reducing breathing disturbances and improving cardiac parameters in patients with HF and coexisting sleep-disordered breathing. Methods: Both modes were delivered using the BiPAP autoSV (Philips Respironics) over a 12-month period. Seventy patients (63 men, 66.3 +/- 9.1 y, BAH 31.3 +/- 6.0 kg/m(2)) had coexisting OSA and CSA/CSR, arterial hypertension, coronary heart disease, or cardiomyopathy and clinical signs of heart failure New York Heart Association classes Polysomnography, brain natriuretic peptide (BNP), spiroergometry, and echocardiography were performed at baseline and after 3 and 12 months of treatment. Results: Both modes of therapy significantly improved respiratory disturbances, oxygen desaturations, and arousals over the study period. ASV reduced the central apnea hypopnea index (baseline CPAP, 21.8 +/- 11.7; ASV, 23.1 +/- 13.2; 12 months CPAP, 10.7 +/- 8.7; ASV, 6.1 +/- 7.8, P < .05) and BNP levels (baseline CPAP, 686.7 +/- 978.7 ng/mL; ASV, 537.3 +/- 891.8; 12 months CPAP, 847.3 +/- 1848.1; ASV, 230.4 +/- 297.4; P < .05) significantly more effectively as compared with CPAP. There were no relevant differences in exercise performance and echocardiographic parameters between the groups. Conclusions: ASV improved CSA/CSR and BNP over a 12-month period more effectively than CPAP. Trial registry: ISRCTN Registry; No: ISRCTN70594408; URL: www.controlled-trials.com CHEST 2012; 142(2):440-447
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available