Minimal pneumothorax with dynamic changes in ST segment similar to myocardial infarction.

作者信息

Yeom Seok-Ran, Park Sung-Wook, Kim Young-Dae, Ahn Byung-Jae, Ahn Jin-Hee, Wang Il-Jae

机构信息

Pusan National University Hospital, Department of Emergency Medicine, 179, Gudeok-ro, Seo-gu, Busan 602-739, South Korea.

Pusan National University Hospital, Department of Thoracic and Cardiovascular Surgery, Pusan National University of College of Medicine, 179, Gudeok-ro, Seo-gu, Busan 602-739, South Korea.

出版信息

Am J Emerg Med. 2017 Aug;35(8):1210.e1-1210.e4. doi: 10.1016/j.ajem.2017.04.037. Epub 2017 Apr 19.

DOI:10.1016/j.ajem.2017.04.037

PMID:28438445

Abstract

Pneumothorax can cause a variety of electrocardiographic changes. ST segment elevation, which is mainly observed in myocardial infarction, can also be induced by pneumothorax. The mechanism is presumed to be a decrease in cardiac output, due to increased intra-thoracic pressure. We encountered a patient with ST segment elevation with minimal pneumothorax. Coronary angiography with ergonovine provocation test and echocardiogram had normal findings. The ST segment elevation was normalized by decreasing the amount of pneumothorax. We reviewed the literature and present possible mechanisms for this condition.

摘要