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A 31-year-old member asked:

can you tell me if an ekg shows a long delay between the p wave and the qrs complex, which type of cardiac tissue might have been damaged?

2 doctor answers3 doctors weighed in
Dr. Bennett Werner
Cardiology 44 years experience
1st degree block: If there is a QRS following every p wave, you have 1st degree AV block. The area of delay is in the right atrium between the sinus node and up to and including the atrio-ventricular junction and node.
Dr. Warren Foster
Cardiac Electrophysiology 20 years experience
AV node: The length of a normal "P" wave is

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A 48-year-old member asked:

Can you tell me if an EKG shows a long delay between the P wave and the qrs complex, which type of cardiac tissue might have?

1 doctor answer1 doctor weighed in
Dr. Bennett Werner
Cardiology 44 years experience
AV block: A PR interval of >200 milliseconds is indicative of atrio-ventricular (AV) block. If a QRS always follows, it's 1st degree. If a QRS sometimes drops, it's 2nd degree. If there's no relationship of P wave to QRS complexes, it's 3rd degree. In all cases, there is conduction system disease present.

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Last updated Feb 16, 2019

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