Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Initial Electrocardiogram and Coronary Angiograms
(A) The patient’s electrocardiogram on presentation in the emergency department shows an inferoposterior ST-segment elevation myocardial infarction. (B) There is resolution of his ST-segment changes after administration of intracoronary nitroglycerin. Corresponding coronary angiograms showing severe ramus intermedius narrowing (blue arrow) (C) before and (D) after intracoronary nitroglycerin administration.
