Abstract
Objective: To evaluate the level of frailty according to REFS and CFS scores of elderly patients undergoing percutaneous coronary intervention at the Vietnam Heart Institute and to study some related factors. Subjects and research methods: Cross-sectional descriptive study on 151 patients hospitalized at the Vietnam National Heart Institute, from August 2024 to August 2025. Results: According to the REFS score, 66.5% of patients were frail, while according to the CFS, this rate was 85.5%. Multivariate analysis showed that factors independently associated with frailty according to the REFS included older age, hypertension, and heart failure, while according to the CFS, only hypertension was an independently associated factor. During the 30 days after the intervention, there were no deaths, and clinical events recorded included pneumonia (5.0%), arrhythmia (2.8%), cerebrovascular accident (2.8%), and major bleeding (2.2%), with a NACE rate of 3.9%. Frail patients had a higher risk of death and clinical events than the non-frail group, especially according to the CFS score. Conclusions: The prevalence of frailty according to REFS was 66.5% and according to CFS was 85.5%. Factors independently associated with frailty according to REFS included older age, hypertension, and heart failure, and only hypertension according to CFS. No deaths were recorded after 30 days of intervention, but frail patients had a higher risk of clinical events, especially according to CFS.
