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.
An electrocardiogram (ECG) of the patient (before cardiac surgery) manifested that his cardiac rhythm was sinus tachycardia and precordial leads shown incomplete right bundle branch block. According to this ECG, the patient had a left atrium abnormality
