Risk Factors of Cardiac Death for Elderly Patients with Severe Chronic Kidney Disease after Percutaneous Coronary Intervention.

Aims: To identify risk factors for cardiac death of elderly and severe chronic kidney disease (CKD) patients with coronary atherosclerotic heart disease (CAHD) after percutaneous coronary intervention (PCI). Methods: 1010 CAHD-CKD patients over 60 years old who had CKD stage 3 or above and underwent PCI were followed up for at least 3 years. Cases of cardiac death were divided into groups. After univariate analysis of all variables, the variables with P  < .2 were selected for further logistic regression. Results: For logistic regression single-vessel disease (SVD) PCI OR = 0.612, 95%CI: 0.416-0.899, P  = .012, it is the protective factor. There are four risk factors, stable angina pectoris (SAP) OR = 4.723, 95%CI: 1.098∼20.322, P  = .037, combined with lower extremity arteriosclerosis obliterans (LEASO) OR = 2.631, 95%CI: 1.272∼5.440, P  = .009, K > 4.285 mmol/L OR = 1.44, 95%CI: 1.002∼2.069, P  = .049, without statins OR = 2.015, 95%CI: 1.072∼3.789, P  = .030. Conclusion: In elderly and serious CAHD-CKD patients after PCI, SVD PCI was a protective factor against cardiac death. However, SAP, CAHD-CKD combined with LEASO, K > 4.285 mmol/L, and no statins were independent risk factors of cardiac death for elderly patients with severe CKD after PCI.