(mak″ro-re-en´tre) reentry involving a circuit of electrical current that uses the bundle branches to rapidly activate the heart, causing ventricular tachycardia with a pattern like bundle branch block and a relatively narrow QRS component. Found on http://www.encyclo.co.uk/local/21001
(mak″ro-re-en´tre) reentry involving a circuit of electrical current that uses the bundle branches to rapidly activate the heart, causing ventricular tachycardia with a pattern like bundle branch block and a relatively narrow QRS component.