Ranjit M Aiyagari

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Risks associated with radiofrequency ablation (RFA) have been reported to be increased in children ≤15 kg. We sought to compare the safety and efficacy of RFA in children <15 kg with those between 15.1 and 20 kg. Clinical, electrophysiologic, and RFA data for all patients ≤20 kg who underwent RFA for supraventricular tachycardia between January 1994 and(More)
BACKGROUND Recoarctation after the Norwood procedure increases risk for mortality. The Single Ventricle Reconstruction (SVR) trial randomized subjects with a single right ventricle undergoing a Norwood procedure to a modified Blalock-Taussig shunt or a right ventricle-pulmonary artery shunt. We sought to determine the incidence of recoarctation, risk(More)
BACKGROUND Chylothorax after congenital heart surgery is a common complication with associated morbidities, but consensus treatment guidelines are lacking. Variability exists in the duration of medical treatment and timing for surgical intervention. METHODS After institution of a clinical practice guideline for management of postoperative chylothorax at a(More)
OBJECTIVES When extracorporeal membrane oxygenation (ECMO) is used in the setting of severe myocardial dysfunction, left ventricular end-diastolic and left atrial pressure can rise to extremely high levels. Decompression of the left atrium in this setting is essential for resolution of pulmonary edema and recovery of left ventricular function. We sought to(More)
BACKGROUND Single ventricle hearts can be surgically palliated by a series of operations culminating in the Fontan procedure, which establishes a total cavopulmonary connection. The second-stage procedure creates a physiologic connection between the superior vena cava and the pulmonary artery. METHODS From 1998 to 2010, 557 patients with single ventricle(More)
OBJECTIVE To describe parent perspectives regarding the end-of-life experience of children with advanced heart disease. DESIGN Cross-sectional multicenter survey study of bereaved parents. SETTING Two tertiary care pediatric hospitals. SUBJECTS Parents of children younger than 21 years with primary cardiac diagnoses who died in the hospital 9 months(More)
BACKGROUND During the past 15 years, closure of a secundum atrial septal defect (ASD) has moved from a surgical to a percutaneous transcatheter approach. Few long-term studies of the efficacy and safety of closure of an ASD by an Amplatzer septal occluder (ASO) exist. METHODS To examine the long-term results of secundum ASD closure using the ASO, data on(More)
Cardiac surgery for congenital heart disease often necessitates a period of myocardial ischemia during cardiopulmonary bypass and cardioplegic arrest, followed by reperfusion after aortic cross-clamp removal. In experimental models, myocardial ischemia–reperfusion is associated with significant oxidative stress and ventricular dysfunction. A prospective(More)
We present a case of multiple interventions to treat symptomatic stenosis of the superior vena cava in a child, with end-stage renal disease and a history of long-term hemodialysis, who had required indwelling central venous catheters for several years. The stenosis was successfully treated with an Edwards Valeo Lifestent, but recurrent symptomatic superior(More)
BACKGROUND Patients requiring extracorporeal membrane oxygenation (ECMO) support after a Norwood operation constitute an extremely high-risk group. Data regarding risk factors for the requirement for ECMO post-Norwood are limited, however. We retrospectively assessed risk factors for requiring ECMO support after a Norwood operation during a 10-year period(More)