Prediction of post radical nephrectomy complications based on patient comorbidity preoperatively
https://doi.org/10.4081/aiua.2021.3.251
Accepted: August 22, 2021
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Objectives: Comorbidity along with tumor and patient characteristics is taken into account when deciding for the surgical treatment of renal cell carcinoma (RCC). Comorbidity has also been used as an independent predictive factor for postoperative complications of several major urological procedures including radical nephrectomy for RCC. The aim of the present study was to objectively evaluate the association between comorbidity and postoperative complications after radical nephrectomy for RCC, using standardized systems to grade both comorbidity and severity of postoperative complications.
Materials and methods: Clinicopathological data of 171 patients undergoing open radical nephrectomy for lesions suspected of RCC were prospectively recorded for a period of 3 years. Comorbidity was scored using the Charlson Comorbidity Index (CCI) while postoperative complications were graded according to the Clavien-Dindo system.
Results: Patients were predominantly males (59.1%); their age ranged from 35 to 88 years (mean ± SD: 63.6 ± 11.9 yrs) with 50.8% of them being ≤ 65 yrs. CCI ranged from 0 to 8 with the majority (85.3%) scoring ≤ 2. The procedure was uncomplicated in 57.3% cases; 10 patients suffered major (grade III/IV) complications and 4 patients died within the 40 days postoperative period. CCI correlated with the manifestation of any postoperative complication, Clavien ≥ 1, OR (95% CI): 1.47 (1.09-1.96), p = 0.011 and the occurrence of severe complications, Clavien > 2. OR (95% CI): 1.29 (1.01-1.63), p = 0.038.
Conclusions: The present prospective study showed that considerable complications occur in patients with major comorbidities. CCI is easily calculated and should be incorporated in preoperative consultation especially in cases of elder patients with severe comorbidity and favorable tumor characteristics where less invasive interventions or even active surveillance could be applied.
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