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Title: The Effect of Supplemental Oxygen in Obesity Hypoventilation Syndrome.
Authors: Masa, Juan F
Corral, Jaime
Romero, Auxiliadora
Caballero, Candela
Terán-Santos, Joaquin
Alonso-Álvarez, Maria L
Gomez-Garcia, Teresa
González, Mónica
López-Martínez, Soledad
De Lucas, Pilar
Marin, José M
Marti, Sergi
Díaz-Cambriles, Trinidad
Chiner, Eusebi
Merchan, Miguel
Egea, Carlos
Obeso, Ana
Mokhlesi, Babak
Spanish Sleep Network
Keywords: noninvasive ventilation;obesity hypoventilation syndrome;oxygen therapy;sleep apnea
metadata.dc.subject.mesh: Adolescent
Aged, 80 and over
Blood Gas Analysis
Blood Pressure
Follow-Up Studies
Middle Aged
Obesity Hypoventilation Syndrome
Oxygen Inhalation Therapy
Quality of Life
Treatment Outcome
Young Adult
Issue Date: 15-Oct-2016
Abstract: Low flow supplemental oxygen is commonly prescribed to patients with obesity hypoventilation syndrome (OHS). However, there is a paucity of data regarding its efficacy and safety. The objective of this study was to assess the medium-term treatment efficacy of adding supplemental oxygen therapy to commonly prescribed treatment modalities in OHS. In this post hoc analysis of a previous randomized controlled trial, we studied 302 sequentially screened OHS patients who were randomly assigned to noninvasive ventilation, continuous positive airway pressure, or lifestyle modification. Outcomes at 2 mo included arterial blood gases, symptoms, quality of life, blood pressure, polysomnography, spirometry, 6-min walk distance, and hospital resource utilization. Statistical analysis comparing patients with and without oxygen therapy in the three treatment groups was performed using an intention-to-treat analysis. In the noninvasive ventilation group, supplemental oxygen reduced systolic blood pressure although this could be also explained by a reduction in body weight experienced in this group. In the continuous positive airway pressure group, supplemental oxygen increased the frequency of morning confusion. In the lifestyle modification group, supplemental oxygen increased compensatory metabolic alkalosis and decreased the apnea-hypopnea index during sleep. Oxygen therapy was not associated with an increase in hospital resource utilization in any of the groups. After 2 mo of follow-up, chronic oxygen therapy produced marginal changes that were insufficient to consider it, globally, as beneficial or deleterious. Because supplemental oxygen therapy did not increase hospital resource utilization, we recommend prescribing oxygen therapy to patients with OHS who meet criteria with close monitoring. Long-term studies examining outcomes such as incident cardiovascular morbidity and mortality are necessary., ID: NCT01405976.
metadata.dc.identifier.doi: 10.5664/jcsm.6194
Appears in Collections:Producción 2020

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