Abstract
BackgroundThe aim of this study was to determine the frequency of coronary artery anomalies (CAAs) in Tetralogy of Fallot (TOF) patients undergoing computed tomography (CT)-angiography in a tertiary care hospital.MethodologyIn this observational study, we included consecutive TOF patients undergoing CT-angiography without prior history of cardiac surgery or congenital heart disease. CAAs were defined based on either origin or course of the artery.ResultsOut of 441 TOF patients, the prevalence of CCAs was 3.6% (16), of which 13 were below 18 years of age. Anomalous left main artery was observed in six (1.4%) patients, followed by left anterior descending artery and right coronary artery, observed in four (0.9%) patients each, and two (0.5%) patients had a single coronary artery originating from the left coronary cusp with an interarterial course.ConclusionsCAAs were observed in a significant number (3.6%) of TOF patients. A CT-angiographic assessment before surgical correction would help identify the exact anatomy for better surgical planning to minimize complications.
Highlights
Coronary artery anomalies (CAAs) are a complex group of congenital disorders that are highly variable in terms of clinical presentation and pathophysiological mechanisms and are not rare in congenital heart disease [1,2]
Anomalous left main artery was observed in six (1.4%) patients, followed by left anterior descending artery and right coronary artery, observed in four (0.9%) patients each, and two (0.5%) patients had a single coronary artery originating from the left coronary cusp with an interarterial course
CAAs were observed in a significant number (3.6%) of Tetralogy of Fallot (TOF) patients
Summary
Coronary artery anomalies (CAAs) are a complex group of congenital disorders that are highly variable in terms of clinical presentation and pathophysiological mechanisms and are not rare in congenital heart disease [1,2]. CAAs have been reported in 2 to 14% of TOF patients in coronary angiography, surgical and autopsy series [4]. Certain coronary anomalies are difficult to diagnose with TOF due to the complex anomalous origin and distribution of the coronary arteries [7]. These anomalies can add to morbidity and mortality during surgical repair [6]. The aim of this study was to determine the frequency of coronary artery anomalies (CAAs) in Tetralogy of Fallot (TOF) patients undergoing computed tomography (CT)-angiography in a tertiary care hospital
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