Is hydronephrosis a risk factor for complications in conventional percutaneous nephrolithotomy?

Abstract

Objective: To assess Hydronephrosis as a Risk Factor for complications in Conventional Percutaneous Nephrolithotomy. Study Design: Cross Sectional Descriptive study. Setting: Kidney Centre Post Graduate Training Centre, Karachi. Period: January to December 2020. Material & Methods: This study was done to know post-operative complications including bleeding, infection, and incomplete stone clearance in patients with or without hydronephrosis undergoing percutaneous nephrolithotomy. After applying the inclusion/ exclusion criteria it was found that the patients with hydronephrosis had less bleeding as compared to the no hydronephrosis group. In the same way, they also had fewer nephrostomy tubes placed, and chest drain insertion. All other complications were approximately the same in each group. Patients were selected using non-probability consecutive sampling technique. Percentage and frequencies were determined for quantitative variables. Mean and standard deviation were determined for quantitative variables. Results: Total 300 cases were studied fulfilling inclusion criteria. There were 70.07% male and 29.3% female cases. Age range of the patients was 18-60 years. There were 52.7% cases with hydronephrosis, placed in one group and 47.3% cases were without hydronephrosis placed in other group. Most common complication was postoperative bleeding reported in 48.9% cases with hydronephrosis as compared to 56.2% cases without hydronephrosis. Mean operative time was 115.7 ± 41.9 minutes in patients with hydronephrosis and 135 ± 35.4 minutes in patients without hydronephrosis. Conclusion: Patients with hydronephrosis experienced less postoperative complications, after PCNL as compared to those without hydronephrosis.