Coronary Angiography Characteristics of Symptomatic Patients with Prior Coronary Artery Bypass Graft: A Descriptive Study

Abstract

Objectives The target of this study was to explore the coronary angiography characteristics for symptomatic patients with prior coronary artery bypass graft (CABG). Methods Between 2009 and 2017, 993 patients who had undergone CABG but subsequently suffered recurrent symptoms in Beijing Anzhen Hospital were selected for this study and divided into either medical therapy (MT) group (n = 351) or percutaneous coronary intervention (PCI) group (n = 642) based on the treatment. Clinical data were analyzed between two groups. Results Patients in the MT group were older and more likely to have chronic lung disease (6.6% vs 3.4%, P=0.026) while patients in the PCI group were more likely to have prior MI (8.8% vs 17.0%, P < 0.001). In the MT group, 54.4% of patients had newly developed lesions both in the graft and native coronary artery while 58.1% in the PCI group (P=0.003), and in the MT group, 80.6% had type C coronary artery disease while 60.1% in the PCI group (P < 0.001). Patients in the MT group presented higher proportion of diffuse lesions (49.3% vs 15.0%, P < 0.001) in native coronary arteries. Conclusion Patients receiving MT (35.3%) likely had occluded grafts and type C coronary artery disease featuring as diffuse lesions.

Clinical research of drug-coated balloon after rotational atherectomy for severe coronary artery calcification

“…Despite being rare, stent thrombosis may cause myocardial infarction (MI) or cardiac death [ 9 ]. Additionally, diffuse lesions are common in calcified vessels, which frequently need longer and numerous DES implanted to cover completely [ 10 ]. In this study, there were also many diffuse lesions, and the total length of devices in RA/DES group reached 52.16 ± 20.76 mm.…”