Objectives Although data of prevalence of prior percutaneous coronary intervention (PCI) and prior coronary artery bypass graft (CABG) are available in the European Heart Survey Programme, there is still lack of large scale cross-sectional study in China. This survey intended to investigate current status of secondary coronary revascularization in Beijing Anzhen Hospital, which is one of the largest cardiovascular centers in China.
Methods A comprehensive review of the institution's database between January 2006 and July 2009 was conducted. Patients who received coronary revascularization were divided into PCI and CABG groups. Demographic information, concomitant diseases, peri-operative laboratory examinations, angiographic features and surgery information of consecutive patients who underwent coronary revascularization were collected.
Results A total of 20,299 patients were included in the analysis, of which 68.58% (13,922) patients received PCI and 31.42% (6377) underwent CABG. Compared to PCI group, the mean age of CABG group was significant older (61.8±9.4 vs 59.7±10.8, respectively, p<0.001). The proportion of male patients in CABG group was also higher than PCI group (70.4% vs 68.0%, respectively, p=0.001). The prevalence of prior PCI or CABG history was 9.03% (1257/13922) and 2.24% (312/13922) respectively, and 0.54% (75/13922) of patients had both of them. of the 6377 patients underwent the index CABG, 5.41% (345/6377) had prior PCI, and 0.25% (16/6377) had prior CABG.
Conclusions The ratios of secondary coronary revascularization were still high in patients treated with PCI or CABG. The comprehensive control of cardiovascular risk factors is needed to strengthen.