Objective: To investigate preoperative predictors for selecting different surgical approaches in patients with renal cell carcinoma with inferior vena cava (IVC) tumor thrombus (RCC-IVCTT), and to establish and validate corresponding predictive models.
Methods: Clinical data of 583 RCC-IVCTT patients were retrospectively analyzed. Of these, 465 cases were used to construct predictive models, and 118 cases were used for validation.