Echocardiographic Findings in Submassive Pulmonary Embolism.

Echocardiography provides important clues for diagnosis of submassive pulmonary embolism in a high-risk patient. Disproportionate right ventricular dilatation and dysfunction with apical sparing in the setting of mild-to-moderate pulmonary artery hypertension should raise suspicion. Absence of any regional wall motion abnormality of left ventricle is an important negative finding.

Syncope: Evaluation and Management.

Syncope is a common symptom in clinical practice. Causes can be relatively benign or potentially lethal. Knowledge of what actually occurs during a spontaneous syncopal episode is ideally the gold standard to determine etiology.

Acute myocardial infarction complicating snake bite.

A case of acute myocardial infarction following viper snake bite is reported. Possible mechanisms are discussed.