Del Nido Cardioplegia in Coronary Artery Bypass Grafting Surgery: A safe, efficacious and economic alternative to St. Thomas solution; an experience from a developing nation.

INTRODUCTION: del Nido cardioplegia is a newer solution getting popular worldwide, whereas in Nepal, St. Thomas cardioplegia solution is conventionally used. There is no national recommendation on cardioplegia solutions supported by evidences from Nepalese studies. This study aimed to evaluate and compare the efficacy of these solutions in Nepalese patients undergoing coronary artery bypass grafting. METHODS: Patients undergoing coronary revascularization, from May 2018 to December 2019, were randomized into St. Thomas and del Nido groups based on the cardioplegia administered, with 45 patients in each group. Preoperative, intraoperative, and postoperative parameters and cost of cardioplegia preparation in the two groups were compared. RESULTS: The cardiopulmonary bypass time (106.13 ± 24.65 minutes vs 107.62 ± 18.69 minutes, p = 0.02), aortic cross clamp time (66.22 ± 15.40 minutes vs 72.07 ± 12.23 minutes, p = 0.04), volume (1059.22 ± 100.30 ml vs 1526.67 ± 271.81 ml, p < 0.001) and number of cardioplegia doses (1.00 ± 0.00 vs 2.51 ± 0.66, p < 0.001) were significantly lower with del Nido cardioplegia. A lower CPK-MB at second post-operative (59.91 ± 31.62 vs 73.82 ± 37.25, p = 0.03) and a higher left ventricle ejection fraction at discharge (56.33 ± 8.94% vs 50.45 ± 8.55%, p < 0.001) was observed in del Nido group. There was one death in St. Thomas group. ICU and hospital stay were similar in both groups. St. Thomas solution was found to be costlier than del Nido solution (USD 5.40 ± 0.96 vs USD 3.50 ± 0.34, p < 0.001). CONCLUSION: The del Nido cardioplegia was found to be efficacious, safe and more economical alternative to St. Thomas solution.

Cardiac Myxoma among Patients Undergoing Cardiac Surgery in a Tertiary Care Center: A Descriptive Cross-sectional Study.

INTRODUCTION: Heart neoplasms are rare tumors. Myxoma is the commonest primary benign tumor of the heart presenting with features of obstruction, arrhythmia, and embolism. Surgical excision of the tumor is the gold standard of treatment. The aim of the study is to find out the prevalence of cardiac myxoma among all cardiac surgeries operated during the study period. METHODS: A descriptive cross-sectional study was done among 3800 patients undergoing surgery for cardiac tumors in a tertiary care center after obtaining approval from the Institutional Review Committee (Reference number- 36/(6-11)E2/077/078). The data was collected retrospectively from August 2012 to August 2020 using convenience sampling method. Statistical analysis was performed using Microsoft Excel 2016. Point estimate at 95% Confidence Interval was calculated along with frequency, percentage, mean and standard deviation. RESULTS: There were 26 (0.68%) (0.42-0.94 at 95% Confidence Interval) myxoma among 3800 cardiac surgeries performed over eight years. The mean age of the patients was 54.76±14.31 (range 17-75) years. Twenty (76.92%) patients were females. The commonest presenting symptom was shortness of breath in 19 (73.07%) patients. En masse excision with the closure of the atrial septal defect was the principal surgical technique. The mean Intensive Care Unit stay and hospital stays were 2.92±1.29 and 6.26±2.61 days respectively. There was no perioperative mortality. CONCLUSIONS: Cardiac myxoma was the most common cardiac tumor encountered as in other studies.

An unusual penetrating shrapnel in the heart.

Penetrating heart trauma is a surgical emergency and can be fatal. However, cardiac penetration occurring due to non-explosive shrapnel is a rare occurrence. We report a case of a 20-year-old man, who sustained a laceration in his left chest, while he was breaking a rock with a chisel and a hammer. He was diagnosed to have an intramyocardial foreign body in his left ventricle. He underwent left ventriculotomy, foreign body localization under fluoroscopic guidance and successful extraction of the shrapnel from the left ventricular cavity.

Spectrum of coronary anomalies and their categorical approach: rare case series.

The incidence of coronary artery anomalies (CAAs) is 0.2-1.2% of the population. Its paradox of being a rare entity with presentation ranging from sudden cardiac death, congestive heart failure, myocardial infarction to being clinically silent, asserts a challenge to its treating physician. Among the various major categories of CAA, we describe four different types of these anomalies in our retrospective evaluation over 2 years. They include - coronary cameral fistula with coronary aneurysm, congenital atresia of left main, anomalous aortic origin of left anterior descending (LAD) and circumflex artery (LCx) with malignant LAD course, anomalous origin of left coronary artery from pulmonary artery (ALCAPA). Although the child with ALCAPA succumbed despite every possible and available timely efforts, other patients had good postoperative recovery and a brief hospital stay.

Atrial Septal Defect Closure Via Mini Thoracotomy and with Peripheral Cannulation.

BACKGROUND: Atrial septal defect is one of the most common congenital cardiac disorders requiring intervention. We compared a minimally invasive method for atrial septal defect closure that included total peripheral cannulation and an anterior mini-thoracotomy incision of 5 cm or less with a median sternotomy approach. METHODS: This was a retrospective cross-sectional study among patients with Atrial Septal Defect. The preoperative variables, intraoperative data, and postoperative outcomes of patients undergoing minimally invasive atrial septal defect closure with total peripheral cannulation and atrial septal defect closure via median sternotomy were collected and compared. RESULTS: Fifty-five patients underwent minimally invasive closure of the atrial septal defect with total peripheral cannulation and 55 patients that underwent surgery by median sternotomy were included for comparison. There were 61.81% (34) female and 38.18% (21) male in the mini-thoracotomy group while there were 52.72% (29) female and 47.27% (26) male in the median sternotomy group. The mean age at surgery was 23.4 and 28.6 years in mini-thoracotomy and median sternotomy groups of patients respectively. The most common symptom was exertional shortness of breath in both groups. The mean length of stay in the intensive care unit was 1.8 and 2.5 days in mini-thoracotomy and median sternotomy groups respectively, and the length of stay in the hospital was 4.5 days and 4.8 days in mini-thoracotomy and median sternotomy groups respectively. There was a significant association was found between the mini-thoracotomy and median sternotomy group in relation to mean size of the incision, average time for cardiopulmonary bypass, average cross-clamp time, and fluid drained on the first day after surgery. CONCLUSIONS: Atrial septal defect closure with a mini-invasive approach is safe and cost-effective with very few perioperative complications and good patient satisfaction.