Selected 2020 Highlights in Congenital Cardiac Anesthesia.

This article is a review of the highlights of pertinent literature published during the 12 months of 2020 that are of interest to the congenital cardiac anesthesiologist. After a search of the US National Library of Medicine's PubMed database, several topics emerged for which significant contributions were made in 2020. The authors of the present article considered the following topics noteworthy to be included in this review: pediatric cardiac care in the coronavirus disease 2019 era, the use of mechanical circulatory support in coronavirus disease 2019-related multisystem inflammatory syndrome in children, transfusion and coagulation management in children undergoing congenital heart surgery, and pulmonary vein stenosis.

Selected 2019 Highlights in Congenital Cardiac Anesthesia.

This article is a review of the highlights of pertinent literature published in 2019, which is of interest to the pediatric cardiac anesthesiologist. After a search of the United States National Library of Medicine PubMed database, several topics emerged in which significant contributions were made in 2019. The authors of this manuscript considered the following topics noteworthy and were included in this review: advances in pediatric heart transplantation, blood management in pediatric cardiac surgery, the impact of nutrition on outcomes in congenital heart surgery, and the use of vasopressin in patients after Fontan palliation.

Validation of a Mathematical Model of Bidirectional Glenn Circulation With Aortopulmonary Collaterals and the Implications for QP/QS Calculation.

OBJECTIVES: A mathematical model of the oxygen delivery kinetics of the bidirectional Glenn (BDG) shunt circulation incorporating aortopulmonary collateral (APC) flow was created. The model was used to characterize oxygen delivery and compare modeled data to actual patient data obtained using cardiac magnetic resonance imaging (MRI) and catheterization. In addition, cardiac MRI and catheterization assessment of pulmonary blood flow in the presence of APC flow were compared. DESIGN: Mathematical model and retrospective data analysis of patients who underwent cardiac MRI and catheterization. The mathematical model is based on the concept that APC flow to the lungs is recirculated pulmonary venous blood flow, which does not contribute to systemic oxygen delivery. SETTING: Single-center, university teaching hospital. PARTICIPANTS: The study included 98 patients with BDG shunt undergoing cardiac MRI and cardiac catheterization. MEASUREMENTS AND MAIN RESULTS: In the absence of APC flow, the pulmonary blood flow to systemic blood flow ratio (Qp/Qs) calculated using cardiac catheterization data closely matched that obtained with cardiac MRI. In the presence of APC flow, Qp/Qs calculated using cardiac catheterization data systematically underestimated values obtained with cardiac MRI. A mathematical model of BDG shunt oxygen delivery incorporating variable APC flow was created. The model provided reasonable prediction of actual patient data for arterial blood oxygen, superior vena cava oxygen saturation, and oxygen delivery obtained at the time of cardiac catheterization in patients. CONCLUSION: The oxygen delivery kinetics of a BDG shunt incorporating variable APC flow can be modeled mathematically. Model output can be used to predict blood oxygen saturation after coil embolization of APC flow in the cardiac catheterization laboratory.