Incidence of congenital heart disease in tertiary care hospital.

ABSTRACT

AIMS AND OBJECTIVES: The present study was under taken to determine the spectrum, clinical profile and outcome of patients with congenital heart disease (CHD) admitted to a tertiary care hospital. MATERIALS AND METHODS: This is a retrospective, observational hospital based study conducted during January 2006 to December 2006. Out of 14461 admissions, 84 were cases of CHD. Only patients with echocardiographic proof of CHD were included in the study. Detailed clinical and laboratory findings and outcome of all cases were noted in pre-structured formats. Data were entered in MS-excel. Data was analyzed by software SPSS version 10. RESULTS: The incidence of CHD was 5.8 per 1000 hospitalized patients. Out of 84 CHD cases, 51 were males and 33 females; with a male to female ratio of 1.51. CHD presented more frequently during infancy (46 %). Acyanotic heart disease was detected in 58 (69 %) cases while cyanotic heart disease was detected in 26 (31%) cases. Among acyanotic heart disease, ventricular septal defect (VSD) was found in 49 (58.3%), atrial septal defect (ASD) in 4 patients (4.8%), endocardial cushion defect (ECD) in 2 patients (2.4%) and dextrocardia was found in 3 patients (3.6%). Among cyanotic heart disease, Tetralogy of Fallot (TOF) accounted for 13.1%, total anomalous pulmonary venous connection (TAPVC) 3.6%, transposition of great arteries (TGA) with VSD 1.2% and unspecified cases of heart disease was found in 13.1%. VSD and TOF were the most common lesions while other CHD like ASD, dextrocardia, TAPVC, ECD, TGA with VSD were encountered less frequently. The most common clinical presentations were failure to thrive (FTT) and developmental delay (86.9%), breathlessness (69%), lower respiratory tract infection (LRTI) (52%), congestive cardiac failure (CCF) (46%), cyanosis (20.2%), cyanotic spell (9.5%) and infective endocarditis (9.5%). The mortality rate was 20 %. CONCLUSION: The incidence of CHD was 5.8 per thousand hospitalized children. VSD, TOF were the most common congenital cardiac lesion. VSD was observed either isolated or associated with other lesions like TGA. The mortality rate was 20 %. The mortality usually occurred in those patients complicated with congestive cardiac failure, lower respiratory tract infection and infective endocarditis.