David A. Danford

Learn More
BACKGROUND Although radiofrequency catheter ablation has been used extensively to treat refractory supraventricular tachycardia in adults, few data are available on its safety and efficacy in children and adolescents. We reviewed registry data obtained from 24 centers to evaluate the indications, early results, complications, and short-term follow-up data(More)
Since 1990, management options available for children with paroxysmal supraventricular tachycardia (PSVT) have included radiofrequency catheter ablation (RCA). To determine the efficacy and safety of the procedure and to maintain a database for long-term follow-up, the Pediatric Electrophysiology Society began a Pediatric RCA Registry on January 1, 1991, to(More)
INTRODUCTION To assess changes of success rate, fluoroscopy time, and complication rate for six supraventricular tachycardia pathways/ mechanisms, data from the Pediatric Radiofrequency Catheter Ablation Registry were grouped into two eras (1991-1995; 1996-1999). METHODS AND RESULTS Data from the early era and the late era were compared using the(More)
The results of radiofrequency ablation for treatment of supraventricular tachyarrhythmias have been reported to improve with increasing experience; however, the precise nature of the learning curve in children is unknown. From November 1990 to October 1993, 1,546 consecutive procedures from the Pediatric Radiofrequency Ablation Registry were categorized(More)
Growth and nutritional status were evaluated in 12 children with chronic renal insufficiency over a 2-year period. During 1 year the children received nutritional counseling but no caloric supplement; during year 2, they received both nutritional counseling and caloric supplementation. With caloric supplementation, food intake as a percent of normal(More)
UNLABELLED Hepatic dysfunction is a recognized complication after Fontan palliation of congenital heart disease. We sought to quantitatively measure hepatic stiffness and vascular Doppler indices using ultrasound (US) and shear wave elastography (SWE) in a Fontan cohort. Subjects were prospectively recruited for echocardiography and real-time hepatic duplex(More)
BACKGROUND Dobutamine stress cardiovascular magnetic resonance (DS-CMR) is an established tool to assess hibernating myocardium and ischemia. Analysis is typically based on visual assessment with considerable operator dependency. CMR myocardial feature tracking (CMR-FT) is a recently introduced technique for tissue voxel motion tracking on standard(More)
OBJECTIVE Our goal was to determine whether CT angiography can reveal complications in pediatric patients and young adults treated with intravascular stents for obstructive vascular lesions. CONCLUSION CT angiography can reveal complications in pediatric patients treated with intravascular stents for obstructive lesions. Potentially, CT angiography could(More)
Truly long-term follow-up data after transcatheter closure (TC) of atrial septal defects (ASDs) are scarce. We report the 5- to 20-year outcomes of TC and surgical closure (SC) for typical secundum ASD. We reviewed the records of patients with isolated secundum ASD and right ventricular volume overload who underwent TC or SC (January 1, 1986 to September(More)