Objectives:

to determine the preoperative and intraoperative conditions that increase the risk of morbidity and mortality in the immediate postoperative period in patients with mitral valve change at the MAC San Rafael Clinic in the period from 2014 to 2017.

Material and methods:

a quantitative, observational descriptive case study was conducted, qualitative variables were presented in absolute frequencies, univariate analysis of predictors of postoperative complications was performed using relative risk and 95% confidence interval. For the continuous and discrete quantitative variables, summary measures and central tendency were used, such as mean, median, standard deviation, range, interquartile range.

Results:

in the present study, 24 cases of patients undergoing mitral valve replacement were reported, the mean age of the patients was 58.7 ± 15.43 years; no statistically significant differences were found in the average age between men and women (p = 0.99). Hypertension is a statistically significant variable p = 0.03 IC.17 (1.29-223.13), for each patient <50 years with arterial hyperten sion there are 5.6 patients> 50 years with the same pathology.

Conclusions:

preoperative variables such as history of arterial hypertension and a functional class NYHA III, are common in the complications of patients operated on the mitral valve. In addi tion, patients who presented clamping and surgery times greater than the average for other studies presented infection of the operative site and septicemia. (Acta Med Colomb 2019; 44: 91-95).