S Muthukumar Balaji

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BACKGROUND Ventricular arrhythmia and sudden cardiac death late after repair of tetralogy of Fallot are devastating complications in adult survivors of early surgery, but their prediction remains difficult. METHODS We examined surgical, electrocardiographic, and late haemodynamic data, and their relation to clinical arrhythmia and sudden death occurring(More)
OBJECTIVE We report 16 infants with complete congenital heart block (CHB) who developed late-onset dilated cardiomyopathy despite early institution of cardiac pacing. BACKGROUND Isolated CHB has an excellent prognosis following pacemaker implantation. Most early deaths result from delayed initiation of pacing therapy or hemodynamic abnormalities(More)
Phrenic nerve palsy is a recognised complication of operation for congenital heart disease in children. The accuracy of ultrasound in assessing diaphragmatic motion was prospectively compared with fluoroscopy in 16 patients in whom phrenic nerve palsy was suspected. Ultrasound successfully identified the five patients with phrenic nerve palsy; there were no(More)
This study evaluates the long-term outcomes and clinical results of costochondral graft and temporalis muscle flap interpositioning with submandibular anchorage in the management of TMJ re-ankylosis. Thirty-one patients, 9 children and 22 adults, with recurrence of ankylosis after gap arthroplasty, with a mouth opening less than 5 mm were evaluated. The(More)
Arrhythmia was compared between 40 consecutive patients (pts) undergoing atriopulmonary connection (APC) and 40 undergoing total cavopulmonary connection (TCPC), between 1986 and 1990. Patients were not randomized, and those undergoing APC predominantly had tricuspid atresia (57.5% versus 15%) compared with pts undergoing TCPC who had more varied and(More)
OBJECTIVE The study objective was to determine whether the extracardiac conduit Fontan confers an arrhythmia advantage over the intracardiac lateral tunnel Fontan. METHODS This multicenter study of 1271 patients compared bradyarrhythmia (defined as need for pacing) and tachyarrhythmia (defined as needing antiarrhythmic therapy) between 602 patients(More)
BACKGROUND Automatic focus tachycardias are often resistant to electrical and pharmacological treatment. Moderate systemic hypothermia (32-34 degrees C) may reduce the tachycardia rate in children with His bundle tachycardia after cardiac surgery. METHODS The case notes of seven children with automatic focus tachycardias treated with hypothermia were(More)
Prolonged QRS duration on the electrocardiogram has been found to predict adverse arrhythmic events in patients late after repair of tetralogy of Fallot. Whether QRS duration can also predict inducible ventricular tachycardia (VT) at electrophysiologic study is unknown. Between 1984 and 1995 we studied 135 survivors of tetralogy of Fallot surgery whose age(More)
OBJECTIVES We sought to evaluate the effects of biventricular (BDOO) pacing compared with conventional (CDOO) atrioventricular (AV) sequential and atrial (AOO) pacing in children and infants in the early postoperative period after open heart surgery for congenital heart disease (CHD). BACKGROUND Biventricular pacing using right ventricular (RV) and left(More)
We determined the clinical value of routine transthoracic echocardiography performed after catheter ablation of supraventricular tachyarrhythmias in children. Between April 1996 and December 2003, 253 children, of whom 135 male, with the overall group having a median age of 9, ranging from 0.1 to 19 years, underwent 280 uncomplicated radiofrequency catheter(More)