• Zhonghua yi xue za zhi · Dec 2019

    Randomized Controlled Trial

    [Safety of del Nido cardioplegia in coronary artery bypass grafting combined with heart valve replacement in adults].

    • X L Jiang, T Y Gu, L Liu, J Song, X Y Zhou, and Z Guo.
    • Deartment of Anesthesiology, the 2nd Affiliated Hosital of Nantong University, Nantong 226001, China.
    • Zhonghua Yi Xue Za Zhi. 2019 Dec 24; 99 (48): 3770-3774.

    AbstractObjective: To investigate the safety and myocardial protective effect of del Nido cardioplegia in coronary artery bypass grafting combined with heart valve replacement in adults. Methods: From April 2018 to April 2019, 84 patients undergoing coronary artery bypass grafting combined with heart valve replacement under cardiopulmonary bypass (CPB) in the Second Affiliated Hospital of Nantong University and Shanghai Chest Hospital were selected, and divided into del Nido cardioplegia (n=44) group and Thomas cardioplegia (n=40) group using a random number table. The concentration of troponin was measured before anesthesia induction and 2, 12 and 24 hours after the termination of CPB, respectively. Results: The preoperative characteristics of each group were similar, including age, underlying diseases, and body surface area (all P>0.05). The frequency of intraoperative cardioplegia infusion in the del Nido group was significantly lower than that in the Thomas group (P=0.03). Compared with the del Nido group, troponin concentration in the Thomas group increased significantly at 12 hours [(4.59±0.76) μg/L vs (2.20±0.53) μg/L, t=-16.653, P<0.001] and 24 hours [(6.70±0.97) μg/L vs (1.96±0.58) μg/L, t=-26.975, P<0.001] after CPB. No statistically significant differences were found in the postoperative recovery of cardiac autonomic rhythm (P=0.887), cardiac defibrillation (P=0.880), positive inotropic drugs (P=0.163) and left ventricular ejection fraction (P=0.338) between the two groups. Conclusions: It is safe to use del Nido cardioplegia in coronary artery bypass grafting combined with heart valve replacement in adults, which can reduce the frequency of cardioplegia infusion and simplify the surgical procedure. The trend of troponin concentration suggests that del Nido cardioplegia has a better myocardial protective effect.

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