The correlation between the anatomical cardiac and electrocardiographic axes has been discussed for several years. Using upright computed tomography, this study aimed to reveal the relationship ...

Wearable devices enable electrocardiograms (ECGs) outside traditional healthcare settings. While these devices are usually equipped with single-lead ECGs to monitor rhythm abnormalities, recent ...

Hypertrophic obstructive cardiomyopathy (HOCM) is a pathologic cardiac condition in which the interventricular septum is abnormally thickened. The classic finding in HOCM is large dagger-like “septal ...

An electrocardiogram assesses the heart’s electrical activity. It is commonly used as a non-invasive monitoring device in many different healthcare settings. This article, the second in a three-part ...

This patient had severe mitral stenosis from rheumatic mitral valve disease causing massive left atrial enlargement. Note the morphology of the PVC in lead V1. The R is greater than the R' in a right ...