Evaluation of coronary artery abnormalities in Williams syndrome patients using myocardial perfusion scintigraphy and CT angiography

Sudden death risk in Williams syndrome (WS) patients has been shown to be 25-100 times higher than in the general population. This study aims to detect coronary artery anomalies and myocardial perfusion defects in WS patients using noninvasive diagnostic methods. This study features 38 patients diag...

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Bibliographic Details
Published in:Cardiology journal 2012, Vol.19 (3), p.301-308
Main Authors: Ergul, Yakup, Nisli, Kemal, Kayserili, Hulya, Karaman, Birsen, Basaran, Seher, Dursun, Memduh, Yilmaz, Ebru, Ergul, Nurhan, Unal, Seher Nilgun, Dindar, Aygun
Format: Article
Language:English
Subjects:
Abnormalities, Multiple
Adolescent
Adult
Chi-Square Distribution
Child
Child, Preschool
Coronary Angiography - methods
Coronary Circulation
Coronary Vessel Anomalies - complications
Coronary Vessel Anomalies - diagnosis
Coronary Vessel Anomalies - diagnostic imaging
Coronary Vessel Anomalies - physiopathology
Coronary vessels
Cross-Sectional Studies
Echocardiography, Doppler, Color
Electrocardiography
Female
Humans
Ischemia
Male
Medical imaging
Multidetector Computed Tomography
Myocardial Perfusion Imaging - methods
Predictive Value of Tests
Prognosis
Radiopharmaceuticals
Scintigraphy
Technetium Tc 99m Sestamibi
Time Factors
Tomography
Tomography, Emission-Computed, Single-Photon
Turkey
Veins & arteries
Williams Syndrome - complications
Young Adult
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Summary:Sudden death risk in Williams syndrome (WS) patients has been shown to be 25-100 times higher than in the general population. This study aims to detect coronary artery anomalies and myocardial perfusion defects in WS patients using noninvasive diagnostic methods. This study features 38 patients diagnosed with WS. In addition to physical examination, electrocardiography, and echocardiography, computed tomography (CT) angiography and rest/dipyridamole stress technetium-99m sestamibi ((99m)Tc-sestamibi) single photon emission computed tomography (SPECT) myocardial perfusion scintigraphy (MPS) were performed. Twenty-one (55%) patients were male; 17 (45%) were female. The average patient age was 12 ± 5 years (2.5-26 years); the average follow-up period was 7.2 ± 4.2 years (6 months-18 years). Cardiovascular abnormalities were found in 89% of patients, the most common one being supravalvar aortic stenosis (SVAS). CT angiography revealed coronary anomalies in 10 (26%) patients, the most common ones being ectasia of the left main coronary artery and proximal right coronary artery as well as myocardial bridging. SVAS was present in 80% of patients with coronary artery anomalies. (99m)Tc-sestamibi SPECT MPS revealed findings possibly consistent with myocardial ischemia in 29% of patients, and ischemia in 7 out of 10 patients (70%) with coronary anomalies shown on CT angiography (p = 0.03). Coronary artery abnormalities are relatively common in WS patients and are often accompanied by SVAS. CT angiography and dipyridamole (99m)Tc-sestamibi SPECT MPS seem to be less invasive methods of detecting coronary artery anomalies and myocardial perfusion defects in WS patients.
ISSN:1897-5593
1898-018X
1897-5593
DOI:10.5603/CJ.2012.0053