Myocardial revascularization in the patient with severe left ventricular dysfunction.

In the past, poor ventricular function was considered a contraindication for myocardial revascularization. More recently, however, patients once considered to be a prohibitive risk for coronary artery bypass procedures are undergoing surgery with acceptable operative mortality and successful long-term outcomes. In fact, reparative surgical results often exceed those achieved through medical management and/or transplantation.

Venous thrombosis: antithrombin III deficiency.

Antithrombin (ATIII) is believed to be one of the body's most powerful natural anticoagulants, so individuals with a deficiency of this protein exhibit a marked propensity to venous thrombosis. This article will focus on the pathophysiology of this disorder, including clinical presentation, diagnosis, and treatment.