• Heart and vessels · Nov 2013

    Short-term use of adaptive servo ventilation improves renal function in heart failure patients with sleep-disordered breathing.

    • Akiomi Yoshihisa, Satoshi Suzuki, Takashi Owada, Shoji Iwaya, Hiroyuki Yamauchi, Makiko Miyata, Takayoshi Yamaki, Koichi Sugimoto, Hiroyuki Kunii, Kazuhiko Nakazato, Hitoshi Suzuki, Shu-ichi Saitoh, and Yasuchika Takeishi.
    • Department of Advanced Cardiac Therapeutics, Fukushima Medical University, 1 Hikarigaoka, Fukushima, 960-1295, Japan, yoshihis@fmu.ac.jp.
    • Heart Vessels. 2013 Nov 1; 28 (6): 728-34.

    AbstractSleep-disordered breathing (SDB) deteriorates the prognosis of patients with chronic heart failure (CHF). Adaptive servo ventilation (ASV) is a new therapeutic modality to treat SDB including Cheyne-Stokes respiration associated with central sleep apnea. Renal function plays critical roles in the progression of CHF and is a strong predictor of clinical outcomes. Cystatin C is a marker of renal function, and more sensitive than serum creatinine. The purpose of the present study was to examine whether ASV is effective for cardiac overload and renal dysfunction in CHF patients with SDB. Fifty patients with CHF and SDB (mean left ventricular ejection fraction 34.0 %, estimated glomerular filtration rate (eGFR) 62.8 ml/min/1.73 cm(2)) were examined. We performed polysomnography for two consecutive days (baseline and on ASV), and measured levels of serum N terminal-pro B-type natriuretic peptide (NT-pro BNP), cystatin C, and estimated glomerular filtration rate based on cystatin C (eGFR Cyst C). ASV significantly improved the apnea hypopnea index, central apnea index, obstructive apnea index, arousal index, mean SPO2, and lowest SPO2 compared to baseline. ASV decreased NT-pro BNP (1,109.0 (2,173.2) to 912.8 (1,576.7) pg/ml, p < 0.05), cystatin C (1.391 ± 0.550-1.348 ± 0.489 mg/l, p < 0.05), and increased eGFR Cyst C (61.9 ± 30.8-65.7 ± 33.8 ml/min/1.73 cm(2), p < 0.01). ASV improved SDB, reduced cardiac overload, and ameliorated renal function in CHF patients with SDB. ASV has short-term beneficial effects on not only SDB but also cardio-renal function. ASV might be a promising useful tool for CHF as an important non-pharmacotherapy with cardio-renal protection.

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