Journal
JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY
Volume 35, Issue 4, Pages 997-1002Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/S0735-1097(99)00653-1
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OBJECTIVES The study was done to determine the most cost-effective approach to follow adults after repair of coarctation of the aorta. BACKGROUND Recoarctation and/or aneurysm formation following surgical repair or angioplasty for coarctation of the aorta carry a significant morbidity and mortality. Various screening tests to detect such complications are used, but little is known of their sensitivities and specificities; as a consequence, the most cost-effective approach to follow such patients is undefined. METHODS Retrospective analysis was done on the sensitivity and specificity of symptomatology, physical examination, electrocardiogram, chest radiograph, exercise testing and transthoracic echocardiography to detect recoarctation and/or aneurysm formation in 84 adult patients following surgical repair or angioplasty of coarctation of the aorta, using magnetic resonance imaging (MRI) as the gold standard test. RESULTS Echocardiography had the highest sensitivity in detecting recoarctation (87%) and chest radiograph the highest sensitivity in detecting aneurysm formation (67%). Combined clinical visit and echocardiography had a high sensitivity for diagnosing recoarctation and/or aneurysm formation (97%), but performing a clinical visit and an MRT on every patient without any prior screening test emerged as the most cost-effective strategy. CONCLUSIONS The most cost-effective approach to diagnose complications at the site of repair in patients after surgical repair or balloon angioplasty of coarctation of the aorta appears to be the combination of clinical assessment and MRI scan on every patient. If MRT resources are scant, performing a clinical assessment plus a transthoracic echocardiography and an MRT on patients with positive results is an acceptable alternative. (C) 2000 by the American College of Cardiology.
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