Abstract:
BACKGROUND: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. 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. RESULTS: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). CONCLUSIONS: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.
journal_name
Cardiol Jjournal_title
Cardiology journalauthors
Ergul Y,Nisli K,Kayserili H,Karaman B,Basaran S,Dursun M,Yilmaz E,Ergul N,Unal SN,Dindar Adoi
10.5603/cj.2012.0053subject
Has Abstractpub_date
2012-01-01 00:00:00pages
301-8issue
3issn
1897-5593journal_volume
19pub_type
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