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Background  Angina is common both before and after myocardial infarction ( MI ). Whether the change in angina status within the first 30 days after  MI  is associated with subsequent readmission and angina persistence is unknown.    Methods and Results  We studied 2915  MI  patients enrolled at 24 hospitals in the Translational Research Investigating Underlying Disparities in Acute Myocardial Infarction Patients’ Health Status (TRIUMPH) registry. Angina before and 30 days after  MI  was assessed with the Seattle Angina Questionnaire. Patients were divided into angina‐free pre‐ and post‐ MI  (−/−), resolved angina (+/−), new angina (−/+), and persistent angina (+/+) groups. Multivariable proportional hazards and hierarchical modified Poisson models were performed to assess the association of each group with all‐cause readmission, readmission for  MI  or unplanned revascularization, and angina persistence at 1 year. Overall, 1293 patients (44%) had angina before their  MI  and 849 (29%) reported angina within 30 days of discharge. Patients with post‐ MI  angina were more likely to be younger, nonwhite, and uninsured. Compared with patients who were angina‐free pre‐ and post‐ MI , 1‐year all‐cause readmission risks were significantly higher for patients with persistent angina (hazard ratio [ HR ], 1.35; 95%  CI  1.06–1.71) or new angina ( HR , 1.40; 95%  CI , 1.08–1.82). At 1 year, angina was present in 22% of patients and was more likely if angina was persistent ( HR , 3.55; 95% CI, 3.05–4.13) or new ( HR , 3.38; 95% CI, 2.59–4.42) at 30 days compared with patients who were angina‐free pre‐ and post‐ MI .    Conclusions  Post‐ MI  angina, whether new or persistent, is associated with higher likelihood of readmission. Prioritizing post‐ MI  angina management is a potential means of improving 1‐year outcomes.

journal of the american heart association

Change in Angina Symptom Status After Acute Myocardial Infarction and Its Association With Readmission Risk: An Analysis of the Translational Research Investigating Underlying Disparities in Acute Myocardial Infarction Patients' Health Status (TRIUMPH) Registry