Risk factors for hemorrhagic complications following robotic-assisted partial nephrectomy

Author:

Tsai Cheng-Han1,Chung Hsiao-Jen12,Huang Eric Y.H.12,Lin Tzu-Ping12,Huang Tzu-Hao12,Huang William J.12

Affiliation:

1. Department of Urology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC

2. Department of Urology, College of Medicine and Shu-Tien Urological Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC

Abstract

Background: The aim of this study was to analyze the risk factors for hemorrhagic complications in patients who underwent robotic-assisted partial nephrectomy. Methods: We retrospectively reviewed the records of 260 patients who underwent robotic-assisted partial nephrectomy. Hemorrhagic complications were defined as bleeding, hematoma, or arteriovenous fistula requiring hemostatic medication, blood transfusion, or therapeutic intervention. Hemorrhagic complications were graded according to the modified Clavien classification system, and the hemorrhagic complication group comprised only those complications with Clavien grade II or higher. Thereafter, we investigated the presence of any relevant association between perioperative factors and hemorrhagic complications. Results: Of 260 patients included in the study, 32 (12.3%) had hemorrhagic complications. The postoperative hemoglobin level was significantly lower in the hemorrhagic complication group than in the group without complications. The hemorrhagic complication group had significantly more essential blood loss and a significantly longer length of hospital stay. In the univariate analysis, type 2 diabetes mellitus, Radius-scores tumor size as maximal diameter exophytic/endophytic properties of the tumor nearness of the deepest portion of the tumor to the collecting system or renal sinus anterior (a)/posterior (p) descriptor location relative to the polar line., sum of the renal size plus renal sinus involvement in the PADUA score is a simple anatomical system that can be used to predict the risk of surgical and medical perioperative complications in patients undergoing open NSS, prolonged console time (>180 minutes), prolonged warm ischemic time (>25 minutes), and method of pedicle control were statistically significant risk factors. In the multivariate logistic regression analysis, warm ischemic time >25 minutes was the only significant risk factor for hemorrhagic complications (odds ratio, 3.51; 95% confidence interval, 1.28-9.59; p = 0.01). Conclusion: Patients who undergo robotic-assisted partial nephrectomy with a warm ischemic time >25 minutes are significantly more likely to have hemorrhagic complications and should hence receive careful perioperative follow-up.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

General Medicine

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