Open Access

ARTICLE

Perioperative outcomes and complication predictors associated with open and minimally invasive nephroureterectomy

Nachiketh Soodana-Prakash¹, Raymond Balise^1,2, Bruno Nahar¹, Vivek Venkatramani¹, Joseph Palmer¹, Nicola Pavan¹, Taylor A. Johnson¹, Samarpit Rai¹, Ramgopal Satyanarayana¹, Chad Ritch¹, Sanoj Punnen¹, Dipen J. Parekh¹, Mark L. Gonzalgo¹

1 Department of Urology, University of Miami Miller School of Medicine, Miami, Florida, USA
2 Department of Biostatistics, University of Miami Miller School of Medicine, Miami, Florida, USA
Address correspondence to Dr. Mark L. Gonzalgo, Department of Urology, University of Miami Miller School of Medicine, 1120 NW 14th Street, Suite 1560, Miami, FL 33136 USA

Canadian Journal of Urology 2018, 25(4), 9395-9400.

Abstract

Introduction: Minimally invasive nephroureterectomy (MINU) and open nephroureterectomy (ONU) have similar oncological outcomes for treatment of upper tract urothelial carcinoma (UTUC). We investigated perioperative outcomes and predictors of complications associated with MINU and ONU.
Material and methods: Using the National Surgical Quality Improvement Program (NSQIP) database, 912 patients were identified that underwent radical nephroureterectomy for UTUC between 2005 and 2013. Logistic regression and contingency table methods used preoperative covariates to predict rates of major (Clavien-Dindo grade ≥ 3) and 16 common perioperative complications. Additional comparisons between treatment groups were performed using unpaired t-tests, Wilcoxon rank-sum tests, or Fisher’s Exact tests. P values were adjusted to maintain an experiment-wise p < 0.05.
Results: A total of 625 (69%) and 287 (31%) patients underwent MINU and ONU, respectively. ONU was associated with a higher rate of major complications (OR: 2.5, CI: 1.2-5.1, p < 0.03). The incidence of pulmonary embolism (bias adjusted OR: 24, CI: 1.3-441, p < 0.003), postoperative pneumonia (OR: 4.9, CI: 1.7-16, p < 0.0016), and transfusion (OR: 2.7, CI: 1.8-4.0, p < 0.0001) was higher for ONU compared to MINU. There were no significant differences in the incidence of other complications. MINU took longer on average (median 223 versus 213 mins, p < 0.02). Time to discharge was longer for ONU (median 5 versus 4 days, p < 0.0001). No other covariates were independent predictors of major complications regardless of surgical approach.
Conclusions: Occurrence of major complications were higher for ONU compared to MINU. These data suggest that MINU is an acceptable surgical option with lower morbidity compared to ONU for the management of UTUC.

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