Prognostic value of coronary CT angiography on long-term follow-up of 6.9 years.
Long term follow-up of coronary CT angiography (CCTA) is scarce. The aim of the present study was to assess the prognostic value of CCTA over a follow-up period of more than 6 years. 218 Patients were included undergoing 64-slice CCTA. Images were analysed with regard to the presence of nonobstructive (<50 %) or obstructive (50 % stenosis) coronary artery disease (CAD). Major adverse cardiovascular events (MACE) were defined as death, nonfatal myocardial infarction or urgent coronary revascularization. CCTA revealed normal coronaries in 49, nonobstructive lesions in 94, and obstructive CAD in 75 patients. During a median follow-up period of 6.9 years, MACE occurred in 45 patients (21 %). Annual MACE rates were 0.3, 2.7, and 6.0 % (p = 0.001), for patients with normal CCTA, nonobstructive, and obstructive CAD, respectively. Multivariate Cox regression analysis identified the number of segments with plaques [hazard ratio (HR) 1.18, p = 0.002] as well as the presence of obstructive lesions (HR 2.28, p = 0.036) as independent predictors of MACE. The present study extends the predictive value of CCTA over more than 6 years. Patients with normal coronary arteries of CCTA continue to have an excellent cardiac prognosis, while outcome is progressively worse in patients with nonobstructive and obstructive CAD.
Cardiac Imaging, University Hospital Zurich, Ramistrasse 100, NUK C 42, 8091, Zurich, Switzerland.
Svetlana
S
Dougoud
Tobias A
TA
Fuchs
Julia
J
Stehli
Olivier F
OF
Clerc
Ronny R
RR
Buechel
Bernhard A
BA
Herzog
Sebastian
S
Leschka
Hatem
H
Alkadhi
Philipp A
PA
Kaufmann
Oliver
O
Gaemperli
D000368:Aged; D055424:Cardiac-Gated Imaging Techniques; D003287:Contrast Media; D017023:Coronary Angiography; D003324:Coronary Artery Disease / Q000000981:diagnostic imaging*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011857:Radiographic Image Interpretation, Computer-Assisted; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D014283:Triiodobenzoic Acids; D061205:Vascular Calcification / Q000000981:diagnostic imaging
D003287:Contrast Media; D014283:Triiodobenzoic Acids; C044834:iodixanol