In a “normal” electrocardiogram (ECG), the transition of the QRS axis in the precordial leads occurs between leads V 3 and V 4 (i.e., there is a dominant S in V 3 and a dominant R in V 4).
Background Patients with severe aortic stenosis (AS) are at high risk of mortality, regardless of symptom status. Despite ...
Medical Device Network on MSN
AliveCor secures FDA approval for next-generation Kardia 12L ECG system
The newly cleared features include three rhythm modifiers and two axis-related morphology determinations: RAD and LAD.
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 ...
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 ...
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