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Randomized Controlled Trial
. 2015 Dec;19(4):1285-92.
doi: 10.1007/s11325-015-1161-7. Epub 2015 Mar 27.

Home-use servo-ventilation therapy in chronic pain patients with central sleep apnea: initial and 3-month follow-up

Colin M Shapiro  1   2 , Sharon A Chung  3   4 , Paul E Wylie  5 , Naheed K Hossain  1 , Rolf H O Holle  6 , Russell P Rosenberg  7 , Mark J Muehlbach  8 , Robert C Doekel  9 , G Vernon Pegram  9 , Jeffrey G Jasko  10
Affiliations
Randomized Controlled Trial

Home-use servo-ventilation therapy in chronic pain patients with central sleep apnea: initial and 3-month follow-up

Colin M Shapiro et al. Sleep Breath. 2015 Dec.

Abstract

Purpose: Opioid treatment of non-malignant chronic pain can result in hypoxemia, hypercarbia, and central sleep apnea. The aim of this study was to determine the initial efficacy of auto servo-ventilation (ASV) and after 3 months of home use.

Methods: This prospective multicenter interventional study recruited chronic pain patients prescribed ≥100 morphine equivalents for at least 4 months.

Participants: Following full-night polysomnography (PSG) to confirm the presence of sleep-disordered breathing, patients were randomized to three additional full-night-attended PSGs with continuous positive airway pressure (CPAP), ASV, and servo-ventilation with an initial mandatory pressure support of 6 cm H2O (ASV manual PSmin 6). Following the PSGs, patients were sent home with EncoreAnywhere and ASV with or without mandatory pressure support.

Results: Based on the initial PSG studies, CPAP improved but did not normalize the apnea-hypopnea index (AHI), central apnea index (CAI), or hypopnea index (HI), as all remained elevated. Clinically significant reductions were noted after just one night of ASV and ASV manual (PSmin 6). After 3 months of ASV home use, the AHI, CAI, and obstructive apnea index (OAI) were significantly reduced when compared to baseline diagnostic levels and even when compared to respiratory disturbance indices with CPAP treatment.

Conclusions: Initial and home use of ASV for 3 months resulted in significantly lower AHI, CAI, and OAI. This reduction attests to the efficacy of ASV treatment in chronic pain patients on high doses of opioids.

Keywords: ASV; Chronic pain; Opioids; Sleep-disordered breathing.

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References

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