Aortopulmonary window with anomalous origin of the right coronary artery from the pulmonary trunk.

Anomalous origin of coronary artery originating from the pulmonary artery in conjunction with the aorticopulmonary window (APW) is a rare but a significant anomaly in the era of congenital cardiac diseases. The occurrence of anomalous origin of the right coronary artery from the pulmonary artery among the associated anomalies is less than 5%. The severity of the clinical condition of these patients depends on the degree of left-right shunt and compromise of the pulmonary blood flow. We report surgical management of a case of a 45-day-old infant with APW, ventricular septal defect, and anomalous origin of coronary artery originated from the pulmonary artery.

Management of congenital cardiac surgery during COVID-19 pandemic.

The new coronavirus infection, which was first seen in China in late December, 2019 and eventually became a worldwide pandemic, poses a serious threat to public health. After a high spike in the number of new COVID-19 infection cases following the increase in overall daily death toll in Turkey, Turkish Ministry of Health has taken immediate precautions to postpone elective surgeries in order to reduce the burden to the healthcare system which might be challenged. Whereas different areas of medicine were able to suspend their operative procedures during this period, this was not completely possible in paediatric cardiovascular surgery due to the severity and urgency of congenital heart disease patients requiring operation. Based on the guideline that was published by the Turkish Paediatric Cardiology and Cardiac Surgery Association, in which the patients requiring surgical intervention during the COVID-19 pandemic period are ranked according to the priority, directions were given regarding the operations that hereby, be delayed, we report our experience in 29 cases retrospectively, regarding the pre-operative evaluation of these patients, makings of an emergency operation decision, and strategies taken about intra-operative and post-operative management and arrangements during the pandemic period. In this article, we present crucial precautions that were applied in paediatric cardiovascular surgery and extensive list of cases in order to deliver highest level of the patient safety and protection for the surgical team.

Visceral oxidative stress during antegrade cerebral perfusion and lower body circulatory arrest.

Background: Antegrade cerebral perfusion (ACP) is the standard neuroprotection method in aortic surgery. Visceral ischemia during this modality brings out some controversies. We aimed to investigate the level of oxidative stress at the lower part of body during ACP. Methods: Thirty consecutive patients underwent elective ascending aorta and hemiarch repair with ACP (without distal perfusion) were enrolled to study. The patients were enrolled into two groups which were based on 50th percentile of ACP duration (15 patients in each group). Blood samples from inferior vena cava at the end of ACP were collected to assess oxidative stress with biochemical parameters such as lactate, advanced oxidative protein products (AOPP) and thiol levels. Clinical follow-up parameters regarding to visceral and spinal cord ischemia were recorded. There were no clinical complications at both groups. Results: Mean ACP duration for the study group was found to be 15 min (10-28 min). Lactate, AOPP, and thiol levels were found to be similar between two groups. Furthermore, correlation analysis revealed only low level of correlation between ACP duration and lactate levels. Renal and liver function tests were found to be similar between groups. Conclusions: Immediate parameters (such as lactate, AOPP, and thiol) that show alterations in response to oxidative stress were not affected by the duration of ACP. Therefore, ACP without distal perfusion may not be harmful when conducted for short duration.

Heparin dose calculated according to lean body weight during on-pump heart surgery.

BACKGROUND: The aim of this study is to compare heparin dose regimen calculated based on the lean body weight with traditional heparin regimen in terms of ensuring adequate anticoagulation and complications associated with perioperative bleeding. METHODS: This prospective, single-blind, randomized study included a total of 100 adult patients (42 males, 58 females; mean age 52.7 years; range, 22 to 84 years) undergoing elective valve surgery with cardiopulmonary bypass between June 2016 and January 2017. Prior to cardiopulmonary bypass, heparin dose was adjusted as 4 mg/kg, according to the actual body weight (n=50) and lean body weight (n=50). The minimal activated clotting time target value was accepted as 480 sec for cardiopulmonary bypass initiation. Demographic and hemodynamic data, post-heparin activated clotting time, additional heparin and perioperative transfusion, postoperative drainage volumes, reoperations, and mortality were recorded. RESULTS: Demographic data, cross-clamp and cardiopulmonary bypass times, and intraoperative transfusion requirement were not significantly different between the groups. The initial and total doses of heparin, as well as the total dose of protamine, were significantly higher in the actual body weight group. Postoperative transfusion rates were also higher in this group. None of the patients in the lean body weight group required reoperation, while three patients in the actual body weight group underwent reoperation. CONCLUSION: Our study results showed that adequate anticoagulation was achieved with the titration of heparin dose calculated according to the lean body weight during cardiopulmonary bypass and reduced total heparin and protamine doses decreased postoperative bleeding and blood product transfusion requirement.