Methods;Among 13,104 patients who enrolled in nationwide AMI database of South Korea, the KAMIR-NIH Registry, 4,166 hypertensive patients, who had 1-year BP data, were selected in this study. They were divided into six systolic or diastolic BP groups according to BP levels.
Results;Lowest 1-year systolic BP group of <110 mmHg had the highest 1-year readmission due to heart failure (7.6± 1.4%). Lowest 1-year diastolic BP group of <65 mmHg also showed the highest 1-year re-hospitalization due to heart failure (7.0 ± 0.9%). On univariate and multivariate Cox-proportional hazard analysis with 1-year systolic BP 130-139 mmHg or diastolic BP 90-99 mmHg as a reference respectively, lower systolic BP (<110 and 110~119 mmHg) or diastolic BP (<70 and 70~79 mmHg) than reference group increased 1-year re-hospitalization due to heart failure. However, on multivariate analysis including age, gender, Killip class, renal function, and left ventricular systolic function, lowest systolic BP and lowest diastolic BP was a significant risk factor for 1-year re-hospitalization due to heart failure.
Conclusion;Systolic and diastolic BP lower than optimal level at 1-year increased 1-year re-hospitalization due to heart failure in hypertensive patients with AMI.