The assessment of myocardial perfusion with thallium-201 in patients with a complete left His bundle-branch block Evaluación de perfusión miocárdica con talio-201 en pacientes con bloqueo completo de rama izquierda del haz de His.

Abstract

Thallium-201 myocardial scintigraphy was used to evaluate coronary perfusion in 20 patients with left bundle branch block suspected of having coronary artery disease. Contemporary coronary arteriography was performed in 9 of these patients. Sensitivity and specificity of the method was similar to that obtained in patients without LBBB. A false positive results indicated ischemia of the interventricular septal region in a patient with normal coronary arteries, a known limitation of the method.