Why the study?
There is currently neither a consensus nor developed guidelines for treating coronary CTO in patients with prior CABG, and their prognosis remains unknown.
Does CTO PCI improve outcomes in patients with prior CABG?
Does CTO PCI improve outcomes in patients with prior CABG?
CTO PCI in patients with prior CABG is technically challenging with lower success rates and higher complication risks compared to those without prior CABG, but remains a viable option for symptomatic relief.
CTO PCI in prior CABG patients warrants careful risk-benefit assessment; leaves open net benefit versus medical therapy in symptomatic cases.
Coronary chronic total occlusion (CTO), which occurs in 18. 4-52% of all patients referred for coronary angiography, represents one of the last barriers in coronary intervention. Approximately half of all patients with prior coronary artery bypass graft (CABG), who undergo coronary angiography, are diagnosed with coronary CTO. In fact, these patients often develop recurrent symptoms and events, necessitating revascularization. Currently, there is neither a consensus nor developed guidelines for the treatment of CTO patients with prior CABG, and the prognosis of these patients remains unknown. In this review, we discuss current evidence and future perspectives on CTO revascularization in patients with prior CABG, with special emphasis on clinical and lesion characteristics, procedural success rates, periprocedural complications, and long-term outcomes.
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Guo et al. (2022) studied this question.
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