Shiv Kumar Choudhary

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BACKGROUND Double valve replacement is associated with reduced long-term survival. This study investigates aortic valve replacement with mitral valve repair as an alternative to double valve replacement in patients with rheumatic heart disease (RHD). METHODS Between January 1995 and December 2005, 369 patients with RHD underwent combined aortic and mitral(More)
BACKGROUND Long-term follow-up of patients who underwent arterial switch operation for complete transposition of great arteries with anatomic left ventricular outflow tract obstruction (LVOTO) has rarely been brought into the focus. METHODS Of 299 patients who underwent an arterial switch operation between January 1991 and January 2001, 23 patients had(More)
Between January, 2002 and December, 2011, 27 patients (19 boys) underwent pericardiectomy. The mean age was 9.3 ± 4.96 years (range 0.4 to 15 years) and the mean duration of symptoms was 16.9 ± 22.15 months. In all, 25 patients had dyspnoea; eight were in New York Heart Association (NYHA) class IV; six had bacterial pericarditis; and 18 were on(More)
OBJECTIVES This study estimated the arterial-to-end-tidal carbon dioxide tension difference (deltaPaCO2-PE'CO2) in children with congenital heart disease; evaluated whether hyperventilation can reduce this difference; and analyzed the relationship between the difference and the oxygen saturation (SaO2) and hemoglobin level. DESIGN Prospective clinical(More)
Delayed presentation of ventricular septal defect (VSD) is common in developing countries. Such patients often have severe pulmonary arterial hypertension (PAH), which increases post-operative morbidity and mortality. To address these problems, we used our technique of unidirectional valved patch (UVP) for closure of VSD. Between January 2006 and December(More)
We report the technical aspects of the arterial switch operation as we performed it in a 5-month-old infant who had situs inversus, dextrocardia, transposition of the great arteries, and inverted origin of the circumflex and right coronary arteries. The successful performance of this procedure required the use of a conduit-lengthening technique due to the(More)
OBJECTIVE Cardiopulmonary bypass (CPB) is known to induce oxidative stress. Because total antioxidant level is reduced during CPB, the supplementation of an antioxidant might help in attenuating the oxidative stress response. The authors sought to evaluate the efficacy of oral coenzyme Q10, in attenuating the oxidative stress to CPB and altering the(More)
BACKGROUND The aim of this study was to analyze the feasibility and early results of transatrial total correction of tetralogy of Fallot (TOF). METHODS Of the 860 patients undergoing total correction for TOF between January 2000 and July 2005, 334 patients were considered morphologically suitable for transatrial total correction. The ventricular septal(More)
Fifty-eight consecutive patients with pulmonary atresia, ventricular septal defect, hypoplastic pulmonary arteries with arborization defects, and major aortopulmonary collaterals were entered into a program for staged surgical repair between January 1979 and July 1989. Prerepair preparatory procedures were designed to (1) encourage native pulmonary artery(More)
OBJECTIVE Altered cardiac autonomic control may play a role in the long-term outcome of patients undergoing univentricular heart repair. This study was undertaken to compare bidirectional superior cavopulmonary anastomosis with preserved antegrade pulmonary blood flow and total cavopulmonary connection, with regard to their effects on cardiac autonomic(More)