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Prognostic value of nocturnal pulse oximetry in patients with heart failure.

Authors :: Rivera-López R
Jordán-Martínez L
López-Fernández S
Rivera-Fernandez R
Tercedor L
Sáez-Roca G
Source :: Medicina clinica [Med Clin (Barc)] 2018 May 23; Vol. 150 (10), pp. 383-386. Date of Electronic Publication: 2017 Dec 23.
Publication Year :: 2018
Abstract: Introduction and Objectives: To analyze the prognostic value of nocturnal hypoxemia measured with portable nocturnal pulse-oximetry in patients hospitalized due to heart failure and its relation to mortality and hospital readmission.<br />Methods: We included 38 patients who were admitted consecutively to our unit with the diagnosis of decompensated heart failure. Pulse-oximetry was considered positive for hypoxemia when more than 10 desaturations per hour were recorded during sleep. Follow-up was performed for 30.3 (standard deviation [SD] 14.2) months, the main objective being a combined endpoint of all-cause mortality and hospital readmission due to heart failure.<br />Results: The average age was 70.7 (SD 10.7) years, 63.3% were males. Pulse-oximetry was considered positive for hypoxemia in 27 (71%) patients. Patients with positive pulse-oximetry had the most frequent endpoint (9.1% [1] vs. 61.5% [16], P = 0.003). After multivariate analysis, continuous nocturnal hypoxemia was related to the combined endpoint (HR = 8.37, 1.19-68.4, P = 0.03).<br />Discussion: Patients hospitalized for heart failure and nocturnal hypoxemia measured with portable pulse-oximeter have an increased risk of hospital readmission and death.<br /> (Copyright © 2017 Elsevier España, S.L.U. All rights reserved.)