Transient left anterior hemiblock during angina pectoris: coronarographic aspects and clinical significance.

The data of 6 patients in whom a left anterior hemiblock appeared in the course of angina pectoris attacks were reviewed. All 6 patients were found to fulfill the criteria for unstable angina. 1 patient who presented the features of Prinzmetal variant angina was included in this group.

Pure left anterior hemiblock: hemodynamic and arteriographic aspects in patients with coronary artery disease.

The electrocardiographic pattern of pure (without bundle branch block) left anterior hemiblock was found in 20 (7.3%) out of 283 consecutive patients who showed significant coronary artery disease at coronary angiography. The clinical, hemodynamic and angiographic findings of these 20 patients are reported.