Christopher S. Snyder

Stent implantation as a stabilization technique in supracardiac total anomalous pulmonary venous connection

A 6‐week‐old male presented in‐extremis with obstructed supra‐cardiac total anomalous pulmonary venous connection. Balloon dilation and stent implantation in the stenotic segment of the vertical vein relieved the obstruction until the patient was stable enough to undergo surgical repair. An unusual form of extrinsic vertical vein compression was found at surgery.

A Case of Tricuspid Atresia with Normally Related Great Vessels and Coarctation of the Aorta

Tricuspid atresia is a congenital cardiac anomaly that is most commonly associated with normally related great vessels and less commonly with transposition of the great vessels. When tricuspid atresia is associated with dextro-transposition of the great vessels, there is a high incidence of coarctation of the aorta. This report documents the rare case of a newborn male with tricuspid atresia and normally related great arteries with both pulmonary stenosis and coarctation of the aorta.

Postoperative ventricular tachycardia in patients with congenital heart disease: diagnosis and management

Ventricular tachycardia (VT) after palliative repair of congenital heart disease is relatively rare. Despite this rarity, VT is a known cause of early, intermediate and late morbidity and mortality in these patients. A number of factors have been linked to the development of VT in this unique patient population. The purpose of this article is to provide a concise overview regarding the etiology, diagnosis and treatment of VT in patients with congenital heart disease. In-depth information will be provided to aid diagnosis and the treatment of early postoperative VT. The use of additional diagnostic methods such as echocardiography, cardiac catheterization and electrophysiology studies to risk assess patients with postoperative VT will also be discussed. In addition, I examine the long-term management strategies for VT in these patients, from medical management and cardiovascular surgery to implantation of cardioverter-defibrillators.

Late occurrence of transient advanced second degree atrioventricular block after successful transcatheter cryoablation of atrioventricular nodal reentry tachycardia.

Late occurrence of atrioventricular nodal block is an extremely rare occurrence after radiofrequency catheter modification of the slow pathway and has yet to be reported after cryoablation. We report a case of late transient advanced second degree atrioventriuclar block after cryomodification of the slow pathway.