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Dinser, Lisa; Meisinger, Christa; Amann, Ute; Heier, Margit; Thilo, Christian; Kuch, Bernhard; Peters, Annette; Kirchberger, Inge (2018): Peripheral arterial disease is associated with higher mortality in patients with incident acute myocardial infarction. In: European Journal of Internal Medicine, Vol. 51: pp. 46-52
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Background: Little data is available on short- and long-term survival in patients with peripheral arterial disease (PAD) after acute myocardial infarction (AMI). We aimed to examine the association of PAD and 28-day case fatality as well as long-term mortality in a population-based sample of patients with incident AMI. Methods: In this secondary analysis of data from the German MONICA/KORA Myocardial Infarction Registry 4307 patients aged 28-74 years with incident AMI with and without history of PAD (information derived from medical chart) were included. Data were collected between 2000 and 2008. Patients were followed-up until December 2011. Associations between PAD and 28-day case fatality were examined via multivariable logistic regression models, between PAD and long-term mortality with Cox proportional hazards regression models, respectively. Results: From 303 (8.9%) patients with PAD, 22 (7.3%) died within 28-days post-AMI in contrast to 96 (2.9%) of patients without PAD. However, the fully adjusted model (OR 1.55, 95% CI 0.89-2.70) revealed no significant association. Long-term follow-up (median 5.7 years) yielded 100 (32.4%) versus 483 (14.4%) cases of deaths among patients with and without PAD, respectively. This association was significant (fully adjusted model: HR 1.70, 95% CI 1.35-2.13), persisted up to 11 years after AMI and was present in all subgroups according to age, sex and history of diabetes. The highest long-term mortality risk was found for patients younger than 63 years with PAD (HR 2.19;95% CI 1.41-3.39). Conclusion: AMI patients with PAD differ considerably from their counterparts without PAD in terms of long-term survival.