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  • Title: Congenital coronary artery fistula: a report of 24 patients.
    Author: Thongtang V, Panchavinnin P, Chaithiraphan S, Sahasakul Y.
    Journal: J Med Assoc Thai; 1996 Oct; 79(10):630-4. PubMed ID: 8996997.
    Abstract:
    Clinical, hemodynamic and angiographic findings of 24 adolescent or adult patients with coronary artery fistula were retrospectively analyzed. There were 7 males and 17 females with the average age of 41.4 years. Nineteen of 24 patients (79.2%) were symptomatic and 18 were older than 20 years of age. Continuous murmur was present in 17 patients, "to and fro' murmur was audible in 2, apical systolic murmur was audible in 1. The remaining 4 patients had no audible murmur. Location of murmur in all patients was unusual for patent ductus arteriosus. Cardiomegaly on chest X-ray was found in 17 patients (70.8%) in whom 8 had prominent pulmonary artery. Electrocardiographic abnormalities were detected in 10 of 24 patients (41.6%) i.e. left ventricular hypertrophy (4 patients) biventricular hypertrophy (2 patients), incomplete right bundle branch block (2 patients), and ischemic changes (2 patients). The intracardiac pressures were slightly elevated and the mean Qp/Qs ratio was only 1.4 +/- 1.2. Angiographically, 28 fistulas were demonstrated in 24 patients. The origins of fistula were from right coronary artery in 12 patients (50%), left coronary artery in 8 patients (33.3%) and both coronary arteries in 4 patients (16.7%). Fistulas drained into the right atrium in 5 patients (20.8%), into coronary sinus in 2 patients (8.3%), into right ventricle in 4 patients (16.7%), into pulmonary arteries in 10 patients (41.7%) and into left ventricle in 3 patients (12.5%).
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