Background: Obesity is considered a hazard factor for ischemic heart disease (IHD). However, it has been proposed that obese people may have a good prognosis after cardiac events, a phenomenon identified as the "obesity paradox". Objective: The aim of the present study was to examine the effect of body mass index (BMI) on clinical manifestations and outcomes following acute myocardial infarction (AMI).
Patients and methods: A retrospective, single center research was conducted at KAMC, Makkah during 2015-2020. AMI cases were allocated into three groups; Group 1 included non-obese (BMI