In the lower tracing (lead II), P1 is conducted. P2 is blocked; in other words, this patient's AV node cannot conduct at the R1P2 interval. P3 was going to be conducted. How do I know that? This ...

SAN FRANCISCO -- Better indicators of high-grade atrioventricular (AV) conduction system abnormalities following transcatheter aortic valve replacement (TAVR) could be gleaned from an intraprocedural ...

Some consider 2:1 AV block to be type II block, claiming that the PR interval doesn't lengthen. What they don't realize is that determining whether the PR interval lengthens requires at least 2 ...

Factors including male sex, baseline conduction disturbances and intraprocedural atrioventricular block were associated with increased risk for permanent pacemaker implantation in patients with severe ...

NEW YORK, NY—High-grade atrioventricular (AV) block occurs within 1 month for roughly one in seven patients who undergo transcatheter tricuspid valve replacement (TTVR), according to new results from ...

SAN FRANCISCO, CA—Conduction abnormalities like complete heart block (CHB) and left bundle branch block (LBBB) remain common in today’s TAVI patients, with some facing pacemaker implantation or even ...

Although there have previously been no reported cases of an interaction between trazodone and omeprazole, a new report is believed to be the first instance of reversible second-degree Mobitz type 1 ...

The heartbeat originates from spontaneous depolarizations in the sinoatrial node, which lead to the spread of electrical signals throughout the heart via a specialized conduction system Failure of the ...

Answer: Enhanced parasympathetic tone and ischemia to the AV nodal artery. Also recall that the right coronary artery (RCA), in addition to supplying the right ventricle and inferior walls, also ...

Lyme disease is a tick-borne bacterial infection (mainly Borrelia burgdorferi) with endemic regions predominantly along the Canada–United States border. In 2016, 987 cases of Lyme disease were ...