Postoperative acute heart failure of emergency surgery / elective surgery was 18/7 (p = 0.004), endoscopy surgery / open surgery was 9/16 (p = 0.013), perioperative mean fluid was 4532 ± 274.6 milliliters (p = 0.036), intraoperative mean fluid speed was 13.7 ± 6.6 milliliters per seconds (p < 0.005), tachycardia / nontachycardia was 10/15 (p =0.034), chronic renal disease / nonchronic renal disease was 18/7 (p < 0.0001), ischemia / nonischemia was 8/17 (p = 0.016).