Prognostic Value of CT Angiography in Coronary Bypass Patients

Abstract

Assessing UCTs with coronary CTA appears to have prognostic value in CABG patients and is incremental to clinical variables. Coronary CTA appears to be a promising tool for risk stratification of CABG patients. Further multicenter studies using large CABG cohorts are needed to confirm our findings.

Prognostic Assessment of Coronary Artery Bypass Patients With 64-Slice Computed Tomography Angiography

“…We also assessed the prognostic utility of UCT and determined that it did have incremental value over the EuroSCORE in predicting all-cause mortality (p ϭ 0.004) (10). The UCT, however, appeared less predictive than CAPS.…”

“…The UCT, however, appeared less predictive than CAPS. It should be noted, however, that in earlier descriptions of UCT different outcomes (all-cause mortality vs. nonfatal MI and cardiac death) were used (10).…”

“…Two models of CAD severity were assessed: unprotected coronary territories (UCT), and coronary artery protection score (CAPS) (5,10). The UCT documented the number of vascular territories that were at risk, whereas CAPS combined the severity of both native and graft disease (Table 1).…”

The Prognostic Significance of Coronary CT Angiography

“…However, the assessment of native coronary circulation with coronary CTA in patients with prior CABG can be challenging and less accurate owing primarily to increased prevalence of dense coronary calcification in the native coronary arteries [22]. Chow et al [23] prospectively enrolled 250 consecutive post-CABG patients at a single center using retrospective, ECG-gated 64-slice cardiovascular CT. Patients were followed for a mean of 20.8 months for the primary end point of cardiac death or nonfatal MI.…”

Multidetector Computed Tomography Angiography (MD-CTA) of Coronary Artery Bypass Grafts – Update 2017

“…In coronary artery bypass patients, MD-CTA appears to have a prognostic value by assessing unprotected coronary territories (UCTs) [13]. Patients without UCTs had the lowest rate for cardiac death and nonfatal myocardial infarction.…”