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ORIGINAL ARTICLE
Year : 2023  |  Volume : 39  |  Issue : 1  |  Page : 39-45

Trifecta and pentafecta outcomes following robot-assisted partial nephrectomy in a multi-institutional cohort of Indian patients


1 Department of Urologic Oncology, Max Institute of Cancer Care, New Delhi, India
2 CEO, Vattikuti Foundation, Detroit, MI, USA
3 Department of Urology, The Medicity Hospital, New Delhi, India
4 Department of Urologic Oncology, Rajiv Gandhi Cancer Institute and Research Centre, New Delhi, India
5 Department of Urology, Chennai Urology and Robotics Institute, Chennai, Tamil Nadu, India
6 Department of Urologic Oncology, Kokilaben Dhirubhai Ambani Hospital, Mumbai, Maharashtra, India

Correspondence Address:
Gagan Gautam
Department of Urologic Oncology, Max Institute of Cancer Care, New Delhi
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/iju.iju_238_22

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Introduction: The literature on studies reporting trifecta or pentafecta outcomes following robot-assisted partial nephrectomy (RAPN) in Indian patients is limited. The primary aim of this study was to report and evaluate the factors predicting trifecta and pentafecta outcomes following RAPN in Indian patients using the multicentric Vattikuti collective quality initiative (VCQI) database. Methods: From the VCQI database for patients who underwent RAPN, data for Indian patients were extracted and analyzed for factors predicting the achievement of trifecta and pentafecta following RAPN. Trifecta was defined as the absence of complications, negative surgical margins, and warm ischemia period shorter than 25 min or zero ischemia. Pentafecta covers all the trifecta criteria as well as >90% preservation of estimated glomerular filtration rate (eGFR) and no stage upgrade of chronic kidney disease at 12 months. Results: In this study, among 614 patients, the trifecta was achieved in 374 patients (60.9%) and pentafecta was achieved in 24.2% of the patients. Patients who achieved trifecta had significantly higher mean age (54.1 vs. 51.0 years, P = 0.005), body mass index (BMI) (26.7 vs. 26.03 kg/m2, P = 0.022), and smaller tumor size (38.6 vs. 41.4 mm, P = 0.028). The preoperative eGFR (84.2 vs. 91.9 ml/min, P = 0.012) and renal nephrometry score (RNS) (6.96 vs. 7.87, P ≤ 0.0001) were significantly lower in the trifecta group. Comparing patients who achieved pentafecta to those who did not, we noted a statistically significant difference between the two groups for tumor size (36.1 vs. 41.5 mm, P = 0.017) and RNS (6.6 vs. 7.7, P = 0.0001). On multivariate analysis, BMI and RNS were associated with trifecta outcomes. Similarly, only RNS was identified as an independent predictor of pentafecta. Conclusions: RNS and BMI were independent predictors of the trifecta. At the same time, RNS was identified as an independent predictor of pentafecta following RAPN.


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