PMID- 25348726 OWN - NLM STAT- MEDLINE DCOM- 20161110 LR - 20211021 IS - 1615-2573 (Electronic) IS - 0910-8327 (Linking) VI - 31 IP - 2 DP - 2016 Feb TI - Effects of nocturnal oxygen therapy in patients with chronic heart failure and central sleep apnea: CHF-HOT study. PG - 165-72 LID - 10.1007/s00380-014-0592-6 [doi] AB - It was previously reported that nocturnal home oxygen therapy (HOT) significantly improved not only sleep disordered breathing (SDB), but also quality of life (QOL) and left ventricular ejection fraction (LVEF) in two trials. To strengthen the statistical reliability of the above efficacies of HOT and to assess the effects of 12-week nocturnal HOT on suppression of ventricular arrhythmias, we combined the two trials and undertook a post hoc analysis. Ninety-seven patients with chronic heart failure (CHF) and central sleep apnea were assigned to receive HOT (45 patients) or not (52 patients). HOT resulted in greater reduction in the apnea-hypopnea index (AHI) (-11.4 +/- 11.0 vs. -0.2 +/- 7.6 events/h, p < 0.01), which is associated with greater improvement in the Specific Activity Scale (0.8 +/- 1.2 vs. 0.0 +/- 0.6, p < 0.01), New York Heart Association (NYHA) functional class (p < 0.01), and LVEF (p = 0.06). Median number of premature ventricular contraction (PVC) at baseline was 17 beats per hour in both the HOT and the control groups. Overall improvements of PVCs were not different either in the HOT group or in the control. However, in 12 patients with NYHA >III and AHI >20 events/h, PVC was significantly improved by HOT with a marked reduction in AHI and a substantial increase in LVEF. In conclusion, among patients with CHF and CSA, HOT improves SDB, QOL, and cardiac function. The effectiveness of HOT for ventricular arrhythmias was not observed in the overall analysis, but only in a limited number of patients with severe CHF and SDB. To clarify the effects of HOT on ventricular arrhythmias in patients with CHF and SDB, a further study is needed. FAU - Nakao, Yoko M AU - Nakao YM AD - Department of EBM Research, Institute for Advancement of Clinical and Translational Science, Kyoto University Hospital, 54 Shogoinkawaharacho, Sakyo-Ku, Kyoto, 606-8507, Japan. FAU - Ueshima, Kenji AU - Ueshima K AD - Department of EBM Research, Institute for Advancement of Clinical and Translational Science, Kyoto University Hospital, 54 Shogoinkawaharacho, Sakyo-Ku, Kyoto, 606-8507, Japan. ueshima.kenji.5m@kyoto-u.ac.jp. FAU - Yasuno, Shinji AU - Yasuno S AD - Department of EBM Research, Institute for Advancement of Clinical and Translational Science, Kyoto University Hospital, 54 Shogoinkawaharacho, Sakyo-Ku, Kyoto, 606-8507, Japan. FAU - Sasayama, Shigetake AU - Sasayama S AD - Uji Hospital, Uji, Japan. LA - eng PT - Journal Article DEP - 20141028 PL - Japan TA - Heart Vessels JT - Heart and vessels JID - 8511258 SB - IM MH - Aged MH - Chronic Disease MH - Female MH - Heart Failure/complications/diagnosis/*physiopathology MH - Heart Rate MH - *Home Care Services MH - Humans MH - Male MH - Middle Aged MH - Oxygen Inhalation Therapy/*methods MH - Quality of Life MH - Randomized Controlled Trials as Topic MH - Recovery of Function MH - Severity of Illness Index MH - Sleep Apnea, Central/complications/diagnosis/physiopathology/*therapy MH - Stroke Volume MH - Time Factors MH - Treatment Outcome MH - Ventricular Function, Left MH - Ventricular Premature Complexes/etiology/physiopathology OTO - NOTNLM OT - Arrhythmia OT - Heart failure OT - Home oxygen therapy OT - Quality of life OT - Sleep apnea EDAT- 2014/10/29 06:00 MHDA- 2016/11/12 06:00 CRDT- 2014/10/29 06:00 PHST- 2013/11/26 00:00 [received] PHST- 2014/10/10 00:00 [accepted] PHST- 2014/10/29 06:00 [entrez] PHST- 2014/10/29 06:00 [pubmed] PHST- 2016/11/12 06:00 [medline] AID - 10.1007/s00380-014-0592-6 [pii] AID - 10.1007/s00380-014-0592-6 [doi] PST - ppublish SO - Heart Vessels. 2016 Feb;31(2):165-72. doi: 10.1007/s00380-014-0592-6. Epub 2014 Oct 28.