E D'Elia1,2, P Ferrero1, C Vittori1, A Iacovoni1, A Grosu1, M Gori1, V Duino1, S Perlini2, Michele Senni3. 1. Cardiology Division, Cardiovascular Department, Papa Giovanni XXIII Hospital, Bergamo, Italy. 2. Clinica Medica 2 Internal Medicine Department IRCCS San Matteo, University of Pavia, Pavia, Italy. 3. Cardiology Division, Cardiovascular Department, Papa Giovanni XXIII Hospital, Bergamo, Italy. msenni@asst-pg23.it.
Abstract
PURPOSE:Adaptive servo-ventilation (ASV) is a ventilator algorithm able to correct breathing through anticyclic support of breathing in patients with central sleep apnea (CSA). So far, very few data exist regarding the role of ASV on acute heart failure with preserved ejection fraction (HFpEF). METHODS: We performed a single-center prospective, randomized, case-control study in consecutive acute HFpEF (left ventricle ejection fraction, LVEF ≥ 45%) patients with sleep-disordered breathing (SDB, apnea-hypopnea index, AHI > 15/h) and prevalence of CSA. RESULTS: We included ten consecutive patients randomized for ASV on top of standard therapy for acute heart failure (group 1) versus standard care alone (group 2). ASV therapy significantly reduced AHI and CSA. An improvement in cardiac diastolic function was seen in group 1 compared to group 2 (E/E' 17.5 to 9.6, p < 0.02 vs 18.5 to 14.5, p = 0.4). Brain natriuretic peptide (BNP) markedly decreased in cases, but not in controls (298 to 84 pg/ml, p < 0.02 vs 280 to 120 pg/ml, p = 0.06). Right ventricle (RV) function significantly improved in group 1, differently from group 2. CONCLUSIONS: An acute use of ASV seems effective in reducing BNP and improving diastolic and RV function in acute HFpEF patients with SDB and CSA, compared to standard treatment.
RCT Entities:
PURPOSE: Adaptive servo-ventilation (ASV) is a ventilator algorithm able to correct breathing through anticyclic support of breathing in patients with central sleep apnea (CSA). So far, very few data exist regarding the role of ASV on acute heart failure with preserved ejection fraction (HFpEF). METHODS: We performed a single-center prospective, randomized, case-control study in consecutive acute HFpEF (left ventricle ejection fraction, LVEF ≥ 45%) patients with sleep-disordered breathing (SDB, apnea-hypopnea index, AHI > 15/h) and prevalence of CSA. RESULTS: We included ten consecutive patients randomized for ASV on top of standard therapy for acute heart failure (group 1) versus standard care alone (group 2). ASV therapy significantly reduced AHI and CSA. An improvement in cardiac diastolic function was seen in group 1 compared to group 2 (E/E' 17.5 to 9.6, p < 0.02 vs 18.5 to 14.5, p = 0.4). Brain natriuretic peptide (BNP) markedly decreased in cases, but not in controls (298 to 84 pg/ml, p < 0.02 vs 280 to 120 pg/ml, p = 0.06). Right ventricle (RV) function significantly improved in group 1, differently from group 2. CONCLUSIONS: An acute use of ASV seems effective in reducing BNP and improving diastolic and RV function in acute HFpEF patients with SDB and CSA, compared to standard treatment.
Entities:
Keywords:
Adaptive servo-ventilation; Central sleep apnea; Diastolic function; Heart failure with preserved ejection fraction; Right ventricle
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