[Complications in patients undergoing ultrasound-guided percutaneous nephrostomy and associated factors].

INTRODUCTION: For the treatment of obstructive hydronephrosis that compromises renal function, procedures are required to decrease pressure such as intrarenal ultrasound-guided percutaneous nephrostomy, which leads to complications like any procedure. General objective: To determine the complications of patients undergoing ultrasound-guided percutaneous nephrostomy and factors associated with their development.

MATERIAL AND METHODS: Cross-analytical, observational, retrospective study that included patients undergoing ultrasound-guided percutaneous nephrostomy in UMAE 25 IMSS, from 1 March, 2013 to 1 March, 2014. Electronic medical records were obtained: age, gender, history of diabetes mellitus, hypertension, smoking, and alcoholism, and whether or not there was the development of post-procedure complications. The association was analyzed by chi square test and Student's t test, taking as significant a value of p = 0.05 and the magnitude of association was measured with 95% confidence interval with SPSS v.18.0.

RESULTS: A total of 84 patients aged 31-79 years were analyzed, corresponding to 64.3% of women. Nephrostomy subsequent complications occurred in 19.0% of cases, of which diabetes mellitus comorbidities occurred in 56.2%, hypertension in 62.5%, obesity 75.0%, smoking 31.2%, and alcoholism 43.7%, with a statistically significant association (p = 0.019), with the presence of obesity hematuria being the most commonly observed complication.

CONCLUSION: Despite the presence of several comorbidities in our population, only the influence of obesity was associated with the development of complications in patients who underwent ultrasound-guided nephrostomy.