Can an atrial septal defect cause left atrial abnormality in a EKG?

Answer On One Hand: Chronic Effects of Atrial Septal DefectAccording to Braunwald's Textbook of Cardiovascular Medicine, every form of atrial septal defect (ASD) normally leads to a left-to-right shunt, w... Read More »

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What Is Morris' Index For Left Atrial Enlargement How To Calculate It?

Multiply the length x breadth of the terminal negative portion of the P wave in lead V1 (the P terminal force). This gives the Morris index.The area exceeds 0.04 mm-sec in left atrial enlargement. ... Read More »

Premature Atrial Contractions?

The questions you ask not have cut and dried answers for the information you have presented. I sensed your frustration and hope you will find my reply helpful. PAC's have to do with the "e... Read More »

Can atrial fibrillation get worse?

A Fib is a progressive disease so it usually gets worse over time. The fibrillation causes changes in your heart that make the fibrillation more likely to occur. AF starts out as paroxysmal, meanin... Read More »

Is Atrial fibrillation classed as Fatal'?

Atrial fibrillation (a-fib) is not a fatal or lethal rhythm. It can make you feel tired and short of breath. Some people can feel the rhythm beating irregularly, while others do not. In a-fib, t... Read More »