Dual chamber vs single chamber pacing for AV block- Which to choose?
Written By : Dr. Nandita Mohan
Medically Reviewed By : Dr. Kamal Kant Kohli
Published On 2022-09-29 04:15 GMT | Update On 2022-09-29 04:15 GMT
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Complete heart block occurs when the electrical signal can't pass normally from the atria, to the ventricles. If the atrioventricular (AV) node is damaged during surgery, complete heart block may result. Sometimes complete heart block occurs spontaneously without surgery.
Patients with complete heart block are usually treated with either a single chamber or a dual chamber pacemaker. The lack of a significant long term benefit with dual chamber pacemakers may be because the ventricular desynchrony with right ventricular pacing outweighs the benefits of atrioventricular synchrony. About 70–85% of the devices implanted are dual chamber in western countries.
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