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Myocardial protection in cardiac surgery: Del Nido versus blood cardioplegia


1 Department of Anesthesia, Christian Medical College and Hospital, Vellore, Tamil Nadu, India
2 Department of Cardiothoracic Surgery, Christian Medical College and Hospital, Vellore, Tamil Nadu, India
3 Department of Biostatistics, Christian Medical College, Bagayam, Vellore, Tamil Nadu, India

Correspondence Address:
A V Varsha
Department of Cardiothoracic Surgery, Christian Medical College and Hospital, Vellore, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/aca.ACA_153_19

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Year : 2020  |  Volume : 23  |  Issue : 4  |  Page : 477-484

 

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Objectives: del Nido cardioplegia which was traditionally used for myocardial protection in pediatric congenital heart surgery is now being extensively utilized in adult cardiac surgery. The aim of this study was to compare the safety and efficacy of del Nido cardioplegia (DNC) with blood cardioplegia (BC). Materials and Methods: This is a historical cohort study using secondary data. Two hundred and eighty six patients who underwent coronary artery bypass graft (CABG) or valve surgery were included. They were divided into 2 matched cohorts of which 143 patients received BC and 143 patients received DNC. Results: There was no difference in cardiopulmonary bypass time (P = 0.516) and clamp time (P = 0.650) between the groups. The redosing of cardioplegia was significantly less for DNC (1.13 vs. 2.35, P = <0.001). The post bypass hemoglobin was higher for DNC (9.1 vs. 8.7, P = 0.011). The intraoperative and postoperative blood transfusion was comparable (P = 0.344) (P = 0.40). The incidence of clamp release ventricular fibrillation (P = 0.207) was similar. The creatine kinase-MB isotype levels for the CABG patients were comparable on all 3 days (P = 0.104), (P = 0.106), and (P = 0.158). The postoperative left ventricle ejection fraction was lesser but within normal range in the DNC group (53.4 vs. 56.0, P = <0.001). The duration of ventilation (P = 0.186), ICU days (P = 0.931), and postoperative complications (P = 0.354) were comparable. There was no 30-day mortality or postoperative myocardial infarction in both the groups. Conclusion: DNC provides equivalent myocardial protection, efficacy, and surgical workflow and had comparable clinical outcomes to that of BC. This study shows that DNC is a safe alternate to BC in CABG and valve surgeries.






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1 Department of Anesthesia, Christian Medical College and Hospital, Vellore, Tamil Nadu, India
2 Department of Cardiothoracic Surgery, Christian Medical College and Hospital, Vellore, Tamil Nadu, India
3 Department of Biostatistics, Christian Medical College, Bagayam, Vellore, Tamil Nadu, India

Correspondence Address:
A V Varsha
Department of Cardiothoracic Surgery, Christian Medical College and Hospital, Vellore, Tamil Nadu
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/aca.ACA_153_19

Rights and Permissions

Objectives: del Nido cardioplegia which was traditionally used for myocardial protection in pediatric congenital heart surgery is now being extensively utilized in adult cardiac surgery. The aim of this study was to compare the safety and efficacy of del Nido cardioplegia (DNC) with blood cardioplegia (BC). Materials and Methods: This is a historical cohort study using secondary data. Two hundred and eighty six patients who underwent coronary artery bypass graft (CABG) or valve surgery were included. They were divided into 2 matched cohorts of which 143 patients received BC and 143 patients received DNC. Results: There was no difference in cardiopulmonary bypass time (P = 0.516) and clamp time (P = 0.650) between the groups. The redosing of cardioplegia was significantly less for DNC (1.13 vs. 2.35, P = <0.001). The post bypass hemoglobin was higher for DNC (9.1 vs. 8.7, P = 0.011). The intraoperative and postoperative blood transfusion was comparable (P = 0.344) (P = 0.40). The incidence of clamp release ventricular fibrillation (P = 0.207) was similar. The creatine kinase-MB isotype levels for the CABG patients were comparable on all 3 days (P = 0.104), (P = 0.106), and (P = 0.158). The postoperative left ventricle ejection fraction was lesser but within normal range in the DNC group (53.4 vs. 56.0, P = <0.001). The duration of ventilation (P = 0.186), ICU days (P = 0.931), and postoperative complications (P = 0.354) were comparable. There was no 30-day mortality or postoperative myocardial infarction in both the groups. Conclusion: DNC provides equivalent myocardial protection, efficacy, and surgical workflow and had comparable clinical outcomes to that of BC. This study shows that DNC is a safe alternate to BC in CABG and valve surgeries.






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