Niger Delta Medial Journal

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SPECTRUM OF ADULT CONGENITAL HEART DISEASE AND THE INDICATIONS FOR ECHOCARDIOGRAPHY REFERRAL IN LAGOS, NIGERIA: A SINGLE TERTIARY INSTITUTION’S EXPERIENCE

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ABSTRACT
BACKGROUND: Echocardiography is an essential diagnostic tool for congenital heart diseases (CHD).
Though present at birth, CHD are sometimes diagnosed in adult life and the diagnosis may be incidental,
during evaluation of other cardiac or non-cardiac conditions. There is therefore a need to evaluate the
spectrum of CHD and the reasons for referral for echocardiography.

OBJECTIVES: To determine the spectrum of adult congenital heart disease and the indications for referral for echocardiography.

METHODS: A retrospective study of all patients who had transthoracic echocardiography done at the
echocardiography laboratory of the Cardiology Unit of the Lagos State University Teaching Hospital
(LASUTH) over a five –year period (January 2015 to December 2019). Echocardiogram records were
retrieved and analyzed using SPSS version 20.0 software.

RESULTS: Four thousand, eight hundred and forty (4,840) transthoracic echocardiographs were done
over the 5 years of study, 129 (2.67%) had diagnosis of congenital heart disease. The mean age of the study population was 38.10 + 17.67 years (range 12-78 years). Fifty nine (45.7%) were males while 70(54.3%) were females. The commonest CHD were ventricular septal defect (39.5%), atrial septal defect (14.7%), tetralogy of Fallot (12.4%), patent ductus arteriosus (10.9%) and bicuspid aortic valve (7.8%). About 13% of cases were diagnosed incidentally while only 21.7% of patients with CHD were referred with a clinicalsuspicion of CHD.
Nig Del Med J 2022; 6(3): 7-14