Cancer and Myocardial Infarction in Women.

Women who present with myocardial infarction (MI) are more likely to be diagnosed with nonobstructive coronary arteries (MINOCAs), spontaneous coronary artery dissection (SCAD), and takotsubo syndrome (TS) than men. Malignancy may predispose to MI and TS through shared risk factors and inflammatory mediators. This study aimed to determine the prevalence of cancer in women presenting with clinical syndrome of MI and the association between cancer and mechanism of MI presentation. Among 520 women with MI who underwent coronary angiography at NYU Langone Health from March 2016 to March 2020 or September 2020 to September 2021, 122 (23%) had a previous diagnosis of cancer. Patients with cancer were older at MI presentation but had similar co-morbidity to those without a cancer history. The most common cancers were breast (39%), gynecologic (15%), and gastrointestinal (13%). Women with cancer history were more likely to have TS (17% vs 11% without cancer history p = 0.049). Among women with a final diagnosis of MI, the type of MI (MINOCA, MI-coronary artery disease, or SCAD) was not significantly different between groups (p = 0.374). History of cancer was present in nearly a quarter of women presenting with MI and was associated with a greater likelihood of TS than MI. MINOCA and SCAD were not more common among women with a cancer history.

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Disclosures Dr. Reynolds reports in-kind donations from Abbott Vascular, Siemens, and Philips for related research. Dr. Smilowitz reports advisory board membership for Medyria. Dr. Hausvater is supported by National Institutes of Health T32HL098129. The remaining authors have no conflicts of interest to declare.