Heart (British Cardiac Society) · 2025
Impact of a recent cancer diagnosis on bleeding risk after myocardial infarction.
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Ow Kok Weng, Tyrer Freya, Van Den Berg Freek, Lai Jennifer, Vernon Sally, Paley Lizz, Wenzl Florian A, Weston Clive, Rutherford Mark J, Lambert Paul C, de Belder Mark A, Deanfield John, Peake Michael D, Adlam David
Аннотация
BACKGROUND: Determining the most appropriate treatment in patients with cancer with an acute myocardial infarction (MI) can be challenging. Optimal management requires an understanding of bleeding risk which may be different in this population. This study aimed to investigate the bleeding risk among patients with MI with and without cancer, in the first and second year post-MI.
METHODS: Patients with MI, with and without cancer were identified from a national cardio-oncology database from England between 2006 and 2019. The outcome was a presentation to hospital for a major bleeding event, with patients followed for a maximum of 24 months. Inverse probability weighting was used to compare cancer and non-cancer cohorts in time-to-event analyses.
RESULTS: 587 279 patients with MI were identified, 9820 (1.7%) had cancer and 577 459 (98.3%) did not. Colorectal, prostate, breast, lung and bladder cancer were the most common types of cancer. The rate of hospital presentation for bleeding in the first year post-MI was higher in patients with cancer than the non-cancer reference population (HR: 1.53, 95% CI 1.45 to 1.62, p<0.001). 506 280 patients with MI were followed up in the second year post-MI. 5666 (1.1%) had cancer and 500 614 (98.9%) did not. The bleeding rate in patients with MI with cancer remained elevated in the second year post-MI (HR: 1.42, 95% CI 1.29 to 1.56, p<0.001). There were marked differences in bleeding between cancer types.
CONCLUSION: In this real-world observational study, patients with cancer had an increased bleeding risk in the first year post-MI which decreased but persisted in the second year after MI. Bleeding risk in patients with cancer must be carefully assessed post-MI.
METHODS: Patients with MI, with and without cancer were identified from a national cardio-oncology database from England between 2006 and 2019. The outcome was a presentation to hospital for a major bleeding event, with patients followed for a maximum of 24 months. Inverse probability weighting was used to compare cancer and non-cancer cohorts in time-to-event analyses.
RESULTS: 587 279 patients with MI were identified, 9820 (1.7%) had cancer and 577 459 (98.3%) did not. Colorectal, prostate, breast, lung and bladder cancer were the most common types of cancer. The rate of hospital presentation for bleeding in the first year post-MI was higher in patients with cancer than the non-cancer reference population (HR: 1.53, 95% CI 1.45 to 1.62, p<0.001). 506 280 patients with MI were followed up in the second year post-MI. 5666 (1.1%) had cancer and 500 614 (98.9%) did not. The bleeding rate in patients with MI with cancer remained elevated in the second year post-MI (HR: 1.42, 95% CI 1.29 to 1.56, p<0.001). There were marked differences in bleeding between cancer types.
CONCLUSION: In this real-world observational study, patients with cancer had an increased bleeding risk in the first year post-MI which decreased but persisted in the second year after MI. Bleeding risk in patients with cancer must be carefully assessed post-MI.