[Percutaneous implantation of an aortic prosthetic valve on a degenerated mitral bioprosthesis. Report of one case].

Reintervention of a mitral degenerated bioprosthesis has a high surgical risk, especially in elderly patients with multiple comorbidities. We report a 74 years old female with two previous cardiac surgical procedures and a new structural mitral bioprosthesis deterioration with severe mitral regurgitation. Considering her high-surgical risk, a fully percutaneous treatment was performed with a balloon-expandable aortic valve in mitral position (valve-in-valve) through a transseptal approach with a favorable outcome.

[Balloon pulmonary angioplasty for the treatment of chronic thromboembolic pulmonary hypertension].

Background: Balloon pulmonary angioplasty (BPA) is a therapeutic alternative for patients with inoperable chronic thromboembolic pulmonary hypertension (CTEPH).

Aim: To report the initial experience with the "refined BPA technique" with the use of intravascular images.

Patients And Methods: Between June 2015 and June 2016 we selected fourteen patients with CTEPH who were considered candidates for BPA.

[Survival of patients with pulmonary arterial hypertension after the advent of specific pulmonary vasodilator therapies].

Background: Pulmonary arterial hypertension (PAH) is a rare and progressive disease. Long-term survival remains poor despite of advances in specific vasodilator therapy.

Aim: To describe the survival rate in a cohort of PAH patients in two referral centers in Chile.

Prevalence of seven cardiovascular-related genetic polymorphisms in a Chilean mestizo healthy population.

Objective: Among the genetic factors associated with cardiovascular disease (CVD), determining polymorphic genotypes could help to understand the appearance of the illness. Ethnic differences in these polymorphisms could explain population variability in susceptibility to CVD. The main goal of this research is to study the presence of more relevant genetic variants of ApoE, CETP, ACE, PAI-1, MTHFR, FII and FVL of the coagulation cascade, to describe the presence of cardiovascular-related variants in a mestizo group of the Chilean people.

[Contemporary practice of the coronary angioplasty in Chile. Final report of the Chilean National Coronary Angioplasty Registry (RENAC) 2001-2002].

Background: Coronary angioplasty was introduced in Chile in 1982, but only after the introduction of stents it became commonplace. However the results of this procedure at the national level remain largely unknown.

Aim: To assess the results and characteristics of coronary angioplasty and develop a national registry in Chile (RENAC).