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A 42-year-old member asked:

What is a 3rd degree heart block?

2 doctor answers3 doctors weighed in
Dr. Shabbir Hossain
Internal Medicine 17 years experience
Bad stuff: Your heart rhythm is normally a carefully coordinated event that has a natural progression electrically to create an effective forceful heart beat. When you have 3rd degree block, it's completely discordant (ie nothing is working together) . When the different parts of the heart are doing their own thing without communicating properly, it's life threatening and requires a pacemaker
Dr. Calvin Weisberger
52 years experience
Third degree: Third degree av block is complete interruption of conduction from atria to ventricles. The ventricular rhythm is usual junctional escape though it may be idioventricular with rates less than 40bpm.

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