Tehran University of Medical Sciences The Research in Heart Yield and Translational Medicine (RHYTHM) 3115-7270 7 2 2012 04 15 85 89 Fariba Almassinokiani Rasool Akram Hospital, Tehran University of Medical Sciences, Tehran, Iran. Mahmood Reza Alebouyeh Rasool Akram Hospital, Tehran University of Medical Sciences, Tehran, Iran. Farshad Entesari Rasool Akram Hospital, Tehran University of Medical Sciences, Tehran, Iran. Seyed Hashem Sezavar Seyedi Rasool Akram Hospital, Tehran University of Medical Sciences, Tehran, Iran. Alireza Almasi Firoozgar Hospital, Tehran University of Medical Sciences, Tehran, Iran. Hossein Akbari Hazrat Fatemeh Hospital, Tehran University of Medical Sciences, Tehran, Iran. Hossein Saidi Rasool Akram Hospital, Tehran University of Medical Sciences, Tehran, Iran. Homa Homam Akbarabadi Hospital, Tehran University of Medical Sciences, Tehran, Iran. 2015 10 03 Acute myocardial infarction (MI) during pregnancy is rare and MI due to Prinzmetal's angina is much rarer. We present a 35-year-old, obese, multigravida, and pre-eclamptic woman, who developed acute anterior wall MI at the 30th week of gestation. On coronary angiography, the second obtuse marginal branch was totally occluded and the right coronary artery (RCA) was normal. Three days later, she had chest pain and ST elevation in the inferior leads. On second angiography, there was narrowing in the RCA, while the obtuse marginal branch was patent. We presume that this discrepancy between the first and second electrocardiograms and angiographic findings was due to Prinzmetal’s angina.  https://rhythm.tums.ac.ir/index.php/jthc/article/view/250 https://rhythm.tums.ac.ir/index.php/jthc/article/download/250/246