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  • Title: "Thrombus-first" or "thrombus-last" approach for surgical management of renal cell carcinoma with inferior vena cava thrombus.
    Author: Ishiyama Y, Kondo T, Yoshida K, Iizuka J, Tanabe K, Takagi T.
    Journal: Int J Urol; 2022 Jun; 29(6):559-565. PubMed ID: 35285084.
    Abstract:
    OBJECTIVES: To compare the perioperative outcomes between thrombectomy first then nephrectomy ("thrombus-first") and vice-versa ("thrombus-last") approaches for patients with renal cell carcinoma and inferior vena cava thrombus. METHODS: We retrospectively evaluated 130 patients who underwent nephrectomy and thrombectomy at two institutions between 1992 and 2020. The cohort was classified into the thrombus-first and thrombus-last groups according to the techniques used. Outcomes including the operative time, blood loss, and complications, especially the occurrence of intraoperative tumor embolism of pulmonary artery and postoperative pulmonary embolism, were compared. RESULTS: The thrombus-first and thrombus-last groups comprised 48 and 82 patients, respectively. Characteristics such as age, performance status, Charlson Comorbidity Index, renal function, and level of tumour thrombus were comparable between the two groups. Approximately 41% of the patients had distant metastasis. There were four cases (3.1%) of intraoperative tumor embolism, all from the thrombus-last group. Three patients overall (2.3%) experienced pulmonary embolism postoperatively with two in the thrombus-last group (2.4%) and one in the thrombus-first group (2.1%) (P > 0.999). The surgical time (291.0 min vs 369.0 min, P < 0.001) and the blood loss (1323.0 vs 2100.0 mL, P < 0.001) were significantly smaller for the thrombus-first group than for the thrombus-last group. Occurrence of complications was 25.0% and 43.9% in thrombus-first and thrombus-last groups, respectively (P = 0.029), and 8.3% and 23.2% for events graded ≥3 (P = 0.035). CONCLUSION: In surgery for renal cell carcinoma with inferior vena cava thrombus, performing thrombectomy before nephrectomy may serve to lessen complications, blood loss, and surgical time compared to nephrectomy before thrombectomy.
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