Antegrade Intermittent Cold Cardioplegia in Comparison to Antegrade Intermittent Warm Cardioplegia in Heart Valve Surgery (original) (raw)
2020, The Egyptian Cardiothoracic Surgeon
Background: The cardioplegic arrest is essential for motionless and bloodless heart valve surgery. The objective of this work was to compare antegrade cold versus warm blood cardioplegia during valve surgery. Methods: This randomized controlled study included 100 patients who had mitral valve surgery. Patients were randomly assigned into two groups; the warm cardioplegic group (n= 50) and the cold cardioplegic group (n= 50). Study endpoints were creatine kinase myocardial band, lactate dehydrogenase, and troponin levels. Results: There was no significant difference in age and sex between groups (p= 0.51 and 0.56, respectively). Cardiopulmonary bypass was significantly longer in the cold group (85.66 ± 22.9 vs. 72.34 ± 25.09 minutes; P= 0.01); however, there was no difference in ischemic time (p= 0.32). The number of DC shocks given for each patient is less in the warm group with a median of 1.5 (range 1-3 times), while in the cold group, the median was 2 (range 2-4 times); p= 0.02. ...
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International Journal of Advanced Research, 2020
Background: Defending the heart against potential damage during cross-clamping is the most important and vital step to ensuring a successful surgical outcome(1). The creation of cardioplegia solutions was one of the major advances in cardiac surgery that allowed surgeons to conduct complicated surgical procedures to avoid myocardial injury (14). Treating cardioplegia at a cool temperature would be a significant factor in lowering myocardial metabolism. However, the reduction in myocardial metabolism due to hypothermia, compared with that achieved by diastolic arrest, is usually very negligible. Since Normothermias enzymatic and cellular processes work better (7). Owing to the propensity of the heart to resume electrical operation during normothermia, however, this must be administered consistently or only with short interruptions (4). Terminal warm blood cardioplegia (hot shot) is normally done just before the elimination of the aortic cross-clamp since it has been demonstrated that...
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