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Long-term outcome of noninvasive positive pressure ventilation for obesity hypoventilation syndrome

Abstract :

BACKGROUND: Few data are available on the long-term outcome of noninvasive positive pressure ventilation (NPPV) for obesity hypoventilation syndrome (OHS). This study was designed to determine long-term survival, treatment adherence, and prognostic factors in patients with OHS in whom NPPV was initiated in an acute setting vs under stable clinical conditions.METHODS: One hundred thirty consecutive patients with OHS (56 women) who started NPPV between January 1995 and December 2006 either under stable conditions (stable group, n = 92) or during ICU management of acute hypercapnic exacerbation (acute group, n = 38) were retrospectively analyzed. RESULTS: Arterial blood gases and the Epworth sleepiness scale were both significantly improved after 6 months of NPPV. With a mean follow-up of 4.1 +/- 2.9 years, 24 (18.5%) patients died and 24 (18.5%) discontinued NPPV. On Kaplan-Meier analysis, 1-, 2-, 3-, and 5-year survival probabilities were 97.5%, 93%, 88.3%, and 77.3%, respectively. Mortality was lower than that described in a previous series of patients with untreated OHS. Supplemental oxygen therapy was the only independent predictor of mortality. The probability of continuing NPPV was 80% at 3 years with a high rate of daily use ( > 7 h). Female sex was predictive of lower long-term adherence to NPPV. The acute and stable groups did not differ in terms of arterial blood gases and Epworth sleepiness scale at 6 months, long-term survival, and treatment adherence. CONCLUSIONS: The results of this study support long-term NPPV as an effective and well-tolerated treatment of OHS whether initiated in the acute or chronic setting.

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https://hal.univ-angers.fr/hal-03275668
Contributeur : Okina Université d'Angers <>
Soumis le : jeudi 1 juillet 2021 - 12:36:04
Dernière modification le : vendredi 2 juillet 2021 - 03:37:26

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Thierry Urban, Frédéric Gagnadoux, Pascaline Priou, Jean-François Hamel, Christine Person, et al.. Long-term outcome of noninvasive positive pressure ventilation for obesity hypoventilation syndrome. Chest, 2010, 138 (1), pp.84 - 90. ⟨10.1378/chest.09-2472⟩. ⟨hal-03275668⟩

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