Key result
CABG in vessels ≤1 mm is linked to worse early outcomes and higher shunt occlusion.
Why the study?
The study was conducted to compare early outcomes of CABG between patients with coronary artery diameter less than 1.5 mm and those with larger vessels.
Does CABG in coronary arteries <1.5 mm in diameter compared to >1.5 mm affect early postoperative outcomes?
Observational (n=200)
Pseudo-randomization (propensity score matching)
Does CABG in coronary arteries <1.5 mm in diameter compared to >1.5 mm affect early postoperative outcomes?
CABG in coronary arteries <1.5 mm is feasible but associated with longer procedural times, and grafting vessels ≤1 mm yields worse early outcomes including higher rates of shunt occlusion.
Answers are grounded in this paper and cite their sources.
Caution warranted grafting ≤1 mm vessels; Level 3 data leaves open need for randomized outcome confirmation.
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Zaikovskii et al. (2022) conducted an observational in Coronary artery disease requiring CABG (n=200). CABG in coronary arteries <1.5 mm vs. CABG in coronary arteries >1.5 mm was evaluated on Early postoperative outcomes including ischemia time, cardiopulmonary bypass time, and shunt occlusion. Coronary artery bypass grafting in vessels ≤1.5 mm is feasible, but grafting vessels ≤1 mm is associated with worse early outcomes and higher rates of early shunt occlusion.
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