Results 291 to 300 of about 71,583 (333)

Electrocardiography of Atrioventricular Block

Cardiology Clinics, 2021
Delayed atrioventricular (AV) conduction most commonly occurs in the AV node, resulting from AH prolongation on an intracardiac electrocardiogram and PR prolongation on a surface electrocardiogram. AV conduction may be blocked in a 2:1 manner, with a normal PR interval and wide QRS suggesting infranodal disease, whereas a prolonged PR interval and ...
Bradley A, Clark, Eric N, Prystowsky
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Iatrogenic Atrioventricular Block

Cardiac Electrophysiology Clinics, 2021
Iatrogenic atrioventricular (AV) block can occur in the context of cardiac surgery, percutaneous transcatheter, or electrophysiologic procedures. In cardiac surgery, patients undergoing aortic and/or mitral valve surgery are at the highest risk for developing perioperative AV block requiring permanent pacemaker implantation.
Christopher C, Cheung, Shumpei, Mori, Edward P, Gerstenfeld   +2 more
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Paroxysmal atrioventricular block

Heart Rhythm, 2009
Paroxysmal atrioventricular block (AVB) is a poorly defined clinical entity characterized by abrupt and unexpected change from 1:1 atrioventricular conduction to complete heart block, leading to syncope and potential sudden cardiac death. Although a dangerous condition because of unreliable escape mechanism, proper diagnosis of paroxysmal AVB is often ...
Sinjin, Lee, Hein J J, Wellens, Mark E, Josephson   +2 more
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Pathology of Atrioventricular Block

Cardiology Clinics, 1984
This article provides a summary of the types of congenital atrioventricular block and the various acquired diseases in which atrioventricular block may occur. Some lesions found in atrioventricular block are illustrated.
S, Bharati, M, Lev
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