All About Cardiovascular System and Disorders

In Tetralogy of Fallot with flap valve VSD, a flap attached to the VSD will restrict flow across the VSD and can cause supra systemic RV pressure.

Two independent rhythms on an electrocardiographic recording noted in: "piggy back" transplant, maternal and fetal ECGs, re-recording on same Holter tape.

ECG features of parasystole are: varying coupling interval, inter ectopic interval has a common denominator other than 1 and fusion beats.

Differentiation of late diastolic ventricular ectopic from intermittent pre-excitation: PJ interval constant in WPW syndrome, can vary in late diastolic VPC

The most important causes of irregularity in ventricular tachycardia are capture beats and fusion beats.

Short RR interval following a long RR interval causes aberrant conduction with right bundle branch block pattern, known as Ashman phenomenon.

Electrophysiological hall mark of intra Hisian block is split His potential.

ST Elevation in Prinzmetal’s Angina ST elevation in Prinzmetal’s angina occurs during pain and disappears when pain subsides. Prinzmetal’s angina is due to coronary vasospasm producing transmural or

Post ectopic mitral regurgitation Long pause following an ectopic beat can produce a diastolic mitral regurgitation during left ventricular angiography. Abnormal sequence of activation can cause systolic mitral

Aortic stenosis murmur and heart failure When the stroke volume falls in heart failure, the intensity of aortic stenosis murmur falls and may even be inaudible. This is