Respiratory Exchange Ratio at Anaerobic Threshold Predicts Adverse Clinical Outcomes in Patients with Heart Failure

Purpose: To clarify the clinical relevance of respiratory exchange ratio at anaerobic threshold (AT RER) in patients with heart failure (HF). Methods and Results: We retrospectively studied 261 HF patients (age: 58  ± 15 years, NYHA class I - III) who underwent a cardiopulmonary exercise testing. According to the median value of AT RER (0.97), we divided into two groups; high AT RER and low AT RER (n = 88, each). After propensity score matching, peak VO2 tended to be higher in high AT RER than low AT RER group (16.2 ± 4.6 vs.

Source: Journal of Cardiac Failure - September 20, 2017 Category: Cardiology Authors: Naoya Kakutani, Arata Fukushima, Takashi Yokota, Takashi Katayama, Ryosuke Shirakawa, Satoshi Maekawa, Hideo Nambu, Takahiro Abe, Koichi Okita, Shintaro Kinugawa Source Type: research