[Left ventricular adaptive response after surgery of aortic valve replacement for severe valvular stenosis].

Background: Myocardial hypertrophy is a compensatory mechanism in patients with severe aortic stenosis. The left ventricle fits the systolic pressure through a hypertrophic process with increased wall thickness. The effects of elevated ventricular afterload reduce ventricular myocardial elasticity and decrease coronary flow with increased myocardial work, oxygen consumption, and mortality.

[Left ventricular rupture of mitral valve prosthesis implantation treated using an intra-aortic balloon pump counterpulsation].

Left ventricular rupture is an infrequent but potentially fatal complication of mitral valve replacement. In spite of the fact that several methods of repair have previously been described, the mortality rate remains nearly 85%. The use of the intra-aortic balloon pump counterpulsation may increase the possibilities of success in the repair of this dreaded complication.

[Prenatal diagnosis of choledochal cyst].

The choledocal cyst is a defect of the biliary extrahepatic route, the incidence is 1 in 100-150,000 newborns. This paper reports the case of a female newborn with choledocal cyst detected prenatally, from a 32-year-old mother, 2nd term pregnancy, who was diagnosed in the routine obstetric ultrasound as an abdominal fetal cyst. An anatomic obstetric ultrasound confirmed the diagnosis that was defined of a probable hepatic origin.

Correlation between insulin requirements and anti-galactose antibodies in patients with type 1 diabetes transplanted with neonatal pig islets.

Pig xenografts represent an alternative source of organs for transplantation. Immunosuppression can prevent rejection, but involves high risk and cost. New anti-rejection techniques have been developed; however, results have not been successful.

Long-term follow-up of patients with type 1 diabetes transplanted with neonatal pig islets.

Pancreas transplantation is an option to achieve better metabolic control and decrease chronic complications in patients with diabetes. Xenotransplantation becomes an important alternative. In this study, we show the clinical outcome of patients with type 1 diabetes transplanted with neonatal pig islets without immunosuppression.