J Korean Soc Emerg Med.  2020 Dec;31(6):553-561.

Efficacy of transthoracic echocardiography performed by emergency physician in patients with suspected acute coronary syndrome in the emergency department

• Kim SM
• Jung CW

Abstract

Objective
This study examined the efficacy of trans-thoracic echocardiography (TTE) performed by emergency physicians in the diagnosis and treatment of acute myocardial infarction (MI) in patients with suspected acute coronary syndrome (ACS).
Methods
This study enrolled patients with suspected symptoms of ACS from January 1, 2017, to June 30, 2017, in the emergency department (ED). One hundred and eighteen patients, who underwent TTE (TTE group), and 384 patients, who did not undergo TTE (control group), were enrolled in this study. The rate of performed coronary angiography (CAG) and percutaneous coronary intervention (PCI) were analyzed in the TTE group. The primary outcomes included the rate of CAG and PCI performed and door-to-puncture time (DTPT).
Results
The rates of CAG and PCI were significantly higher in the TTE group than in the control group (CAG: 38% vs. 28%, P=0.039; PCI: 31% vs. 21%, P=0.034). The mean DTPT in non-ST segment elevation was 110 minutes (110.2±38.86 minutes) in the TTE group and 151 min (151.3±108.01 minutes) in the control group (P=0.054).
Conclusion
Patients with suspected ACS in ED with TTE had a higher rate of CAG and PCI performed compared to the patients without TTE. In patients with non-ST segment elevation in the initial electrocardiogram, TTE performed by emergency physicians tended to shorten the time to diagnose MI and DTPT.

Keyword

Echocardiography; Acute coronary syndrome; Door to puncture time