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Biomedical subjects

G Vijayaraghavan

Publications and source records attributed to G Vijayaraghavan.

At least 19 recordsLinked to original sources
PubMed1990

Pattern of cardiac calcification in tropical endomyocardial fibrosis.

Over a two-year period we investigated 55 patients with endomyocardial fibrosis, using two-dimensional echocardiography, color-coded echocardiography, and image intensifier fluoroscopy, to delineate the regional distribution of cardiac calcification. Thirty five patients (64%) were found to have calcification of the ventricular walls. Calcific deposits were seen in the right ventricle in 26(59%) patients and in the left ventricle in 16(44%) patients. All patients who showed calcification were in severe cardiac failure indicating late stage of the disease. When image intensifier fluoroscopy was taken as the gold standard, echocardiography had a sensitivity of 100% and a specificity of 98% in detecting cardiac calcification. The high incidence of calcification in the ventricular walls in the present study is apparently due to the systematic use of two-dimensional echocardiography and image intensifier fluoroscopy.

Adolescent↗
PubMed1989

Direct communication between the left pulmonary artery and the left atrium.

A 17-year-old patient was found to have cyanosis. A right-to-left shunt was suspected clinically and confirmed by noninvasive techniques such as perfusion lung scan and contrast echocardiography. Angiography showed this shunt to be between the left pulmonary artery and the left atrium. We believe this to be the first report of a hitherto undescribed congenital anomaly.

Adolescent↗
PubMed1977

Rheumatic aortic stenosis in young patients presenting with combined aortic and mitral stenosis.

This report describes 30 patients under the age of 30 years with rheumatic aortic stenosis, presenting with combined aortic and mitral stenosis. Three patients had additional tricuspid stenosis. Twenty-eight patients gave a history of rheumatic polyarthritis. The diagnosis was confirmed by right and left heart catheterisation in all. The murmur of aortic stenosis was not initially present in 8 out of 10 patients in congestive heart failure. Aortic valve calcification was not seen. Cineangiography showed a tricuspid aortic valve in all, unlike congenital aortic stenosis. A unique feature of this group was the raised pulmonary vascular resistance in 87 per cent of the patients. The present study shows that patients in India developing aortic stenosis after rheumatic fever do so early in the natural history of the disease.

Adolescent↗
PubMed1977

Left ventricular endomyocardial fibrosis in India.

Clinical, radiological, electrocardiographic, haemodynamic, and cineangiographic features of left ventricular endomyocardial fibrosis are described in 8 patients seen during the 10-year period 1965-1975. Exertional dyspnoea was the commonest presenting symptom. Mild to moderate cardiomegaly was often present. The apex beat was never forcible. A loud third heart sound over the apex and an apical early systolic murmur with late systolic decresendo were characteristic of this desease. Chest X-rays films showed left atrial enlargement and pulmonary venous congestion. A pronounced rise in left ventricular end-diastolic pressure, severe pulmonary hypertension, and low cardiac index were seen in 6. Ventriculography showed an irregular, poorly contracting left ventricle with areas of dyskinesis and large end-systolic volume. Mitral regurgitation, when present, was not severe.

Adolescent↗