ObjectiveTo explore the risk factors of in-stent restenosis (ISR) after percutaneous coronary intervention (PCI) in elderly patients with coronary heart disease. MethodsClinical data of 382 elderly patients with coronary heart disease treated with PCI were analyzed retrospectively. The incidence of ISR was statistically analyzed. The risk factors for ISR were investigated by comparison with the patients without ISR. ResultsA total of 382 patients underwent PC and 555 stents were implanted. ISR occurred in 40 patients. The univariate analysis showed that there were significant differences in cases complicated with diabetes, the proportion of cases with hsCRP ＞12 mg/L, the number of stents, the stent diameter and the stent length between the two groups (P＜0.05). Multivariate analysis revealed that being complicated with diabetes, hsCRP concentration, stent diameter, stent length and stent number were the independent risk factors for ISR. ConclusionThe incidence of ISR after PCI is still at a high level in the elderly patients with coronary heart disease. The stent diameter, stent length and number of stent are the risk factors for the occurrence of ISR. Being complicated with diabetes, high hsCRP level also can affect the occurrence of ISR, thus attention should be paid clinically and the corresponding intervention should be performed to reduce the incidence of ISR.

无