CST3 and cardiac arrhythmia: Univariate analyses showed that operation duration (P < 0.2), LDH (P < 0.2), CHE (P < 0.2), Cystatin C (P < 0.2), arrhythmia (P < 0.2), NE (P < 0.2), TBil (P < 0.2), DBil (P < 0.2), Cr (P < 0.2), and Mg (P < 0.2) were significant.