Bundle branch blocks could be RBBB, LBBB, LAHB, LPHB or combinations. Those patterns not conforming to these are IVCD (intraventricular conduction defects).
ECG leads V1H to V6H are recorded one intercostal space above the conventional position, and leads V1L to V6L are recorded one intercostal space below.
Combination of constrictive pericarditis with restrictive cardiomyopathy is seen in:
a. Radiation
b. Amyloidosis
c. Postcardiotomy syndrome
d. Adriamycin cardiotoxicity