Risk factors for acute renal failure after heart surgery.

Objective: The aim of the present study was to identify risk factors for acute renal failure in patients with normal levels of serum creatinine who had undergone coronary artery bypass graft (CABG) surgery and/or valve surgery.

Methods: Data from a cohort of 769 patients were assessed using bivariate analyses and binary logistic regression modeling.

Results: Three hundred eighty one patients underwent CABG, 339 valve surgery and 49 had undergone both simultaneously.

[Surgical treatment of aortic valve disease with stentless bovine pericardium prosthesis: immediate results].

Objective: To present the immediate results and assess the clinical and hemodynamic performance of stentless bovine pericardial bioprostheses in aortic position.

Methods: Twenty patients were operated who were indicated for surgery for valve replacement with biological prosthesis. Eleven patients were male; sixteen had aortic stenosis; four, insufficiency; the mean age was 66.

[Sildenafil improves right ventricular function in a cardiac transplant recipient].

We report the case of a male patient who underwent orthotopic cardiac transplantation. A marginal donor was used, because the recipient's clinical condition was critical. He experienced cardiogenic shock due to right ventricular dysfunction secondary to pulmonary hypertension associated with vasoplegia.