[Percutaneous intervention in the correction of congenital heart deffects (DCC): experience in as UMAE].

Introduction: Congenital heart defects are common in infants and adults, affecting quality of life if not corrected. Unlike open surgery, percutaneous intervention allows correction with a high success rate and speedy recovery. In Mexico, there are not enough studies to describe their efficacy and safety.

[Angioplasty and stenting in treatment of critical aortic coarctation].

Objective: To present our experience in the endovascular treatment of native coarctation of the aorta, with important hemodynamic changes.

Methods: From May 2000 to February 2006, we studied seven patients with a diagnosis of native coarctation of the aorta. All of them accepted to participate in the treatment.

Clinical forms of Trypanosoma cruzi infected individuals in the chronic phase of Chagas disease in Puebla, Mexico.

In Mexico, despite the relatively high seroprevalence of Trypanosoma cruzi infection in humans in some areas, reported morbidity of Chagas disease is not clear. We determined clinical stage in 71 individuals seropositive to T. cruzi in the state of Puebla, Mexico, an area endemic for Chagas disease with a reported seroprevalence of 7.

[Combined fixed doses therapy in systemic hypertension].

Objective: A single blind clinical trial was conducted to assess the concept that initial treatment in stage I and II of hypertension with fixed doses of two antihypertensives that have different modes of action and additive effects, in a 24-week period with bisoprolol (B), an cardioselective beta blocker, that does not have intrinsic sympathomimetic activity, associated to hydrochlorothiazide (HCTZ).

Material And Methods: Thirty-one patients (22 females and 9 male) were included, with an age range between 20 and to 70 years (mean 52.45 +/- 12.