[Electrocardiographic diagnosis of left main coronary artery obstruction using ST-segment and QRS-complex vector analysis].

Introduction And Objectives: It is vital that obstruction of the left main coronary artery (LMCA) is diagnosed early. We investigated the value of ST-segment and QRS-complex vector analysis in identifying LMCA obstruction in acute coronary syndrome.

Methods: The study involved 57 consecutive patients with electrocardiographic features suggestive of LMCA obstruction.

Myocardial damage after inhalation of chloramines.

The objective of this case report was to document a rare case of myocardial damage, in the context of an accidental inhalation of chloramines, demonstrated by electrocardiogram and myocardium-specific enzymes.

[Electrocardiographic prediction of the site of lesion in the anterior descending artery in acute myocardial infarction].

Introduction And Objectives: The goal of this study was to analyze the value of electrocardiography in predicting the site of the lesion in the left anterior descending coronary artery, in relation to the first septal and the first diagonal branches, in patients with acute anterior myocardial infarction.

Method: Ninety consecutive patients who were admitted to the coronary unit with acute anterior myocardial infarction from July 1998 to May 2000 were studied retrospectively. The electrocardiographic changes were analyzed and correlated with the site of the lesion in the anterior descending artery, as determined by coronary angiography.