Cardiophile MD Archive

Posts Tagged ‘infra Hisean blocks

EP tracings in sinus rhythm demonstrating the basic intervals

Posted by: Johnson Francis on: 08 Nov, 2009

EP tracings in sinus rhythm demonstrating the basic intervals Click on the image for and enlarged view Upper six tracings (white) show the surface electrocardiogram. The green channel shows right atrial tracings: HRAd: distal pair of high right atrial electrodes; HRAp: proximal pair of high right atrial electrodes. The yellow channel represents His bundle recordings: [...]

ECG Quiz 26

Posted by: Johnson Francis on: 13 Dec, 2008

Click on the image for an enlarged view Regular sinus rhythm at about 60 per minute with a wide QRS is noted. The PR interval is 200 msec. The initial Q waves in II, III and aVf suggests an old inferior wall myocardial infarction. The QRS is wide, lasting 160 msec. The slurred S waves [...]