Transient Secondary Hypothyroidism and Thyroid Hormone Replacement Therapy in Pediatric Postoperative Cardiopulmonary Bypass.

Background: To develop an understanding of current practices in the management of transient secondary hypothyroidism in pediatric postoperative cardiopulmonary bypass (CPB) patients.

Methods: Electronic survey comprising a 10-item questionnaire was sent to sixty-four high volume pediatric heart centers in the United States and United Kingdom. Survey participants included cardiologists, intensivists, cardiothoracic surgeons, and advanced practice providers.

Biventricular Repair of Pulmonary Atresia After Fontan Palliation.

Fontan palliation is used when biventricular repair (BVR) is not possible. Early outcomes are acceptable; however, the long-term sequelae include protein-losing enteropathy, declining functional status, increased pulmonary vascular resistance, heart failure, and hepatic and renal dysfunction. These adverse events are characteristic of persistent venous hypertension and may be avoided if restoring biventricular circulation is possible.

Surgical Treatment of Neonate With Congenital Left Main Coronary Artery Atresia.

Left main coronary artery atresia (LMCAA) is a rare congenital malformation with a nonspecific and varied clinical presentation. Ventricular dysfunction and mitral insufficiency are expected ischemic consequences in the neonatal period. Left internal mammary artery (LIMA) bypass grafting (CABG) is uncommon because of the technical difficulties in performing this procedure in neonates.