Christian Niedworok1, Bettina Dörrenhaus2, Frank Vom Dorp3, Jarowit Adam Piotrowski4, Stephan Tschirdewahn5, Tibor Szarvas6, Herbert Rübben7, Marcus Schenck8. 1. Department of Urology, Essen Medical School, University Duisburg-Essen, Essen, Germany. Christian.Niedworok@uk-essen.de. 2. Department of Urology, Essen Medical School, University Duisburg-Essen, Essen, Germany. b_doerrenhaus@web.de. 3. Department of Urology, Helios Hospital Duisburg, Duisburg, Germany. frank.vom-dorp@helios-kliniken.de. 4. Department of Cardiovascular Surgery, Essen Medical School, University Duisburg-Essen, Duisburg, Germany. ja1pio@aol.com. 5. Department of Urology, Essen Medical School, University Duisburg-Essen, Essen, Germany. Stephan.Tschirdewahn@uk-essen.de. 6. Department of Urology, Essen Medical School, University Duisburg-Essen, Essen, Germany. sztibusz@gmail.com. 7. Department of Urology, Essen Medical School, University Duisburg-Essen, Essen, Germany. Herbert.Ruebben@uk-essen.de. 8. Department of Urology, Essen Medical School, University Duisburg-Essen, Essen, Germany. Marcus.Schenck@uk-essen.de.
Abstract
OBJECTIVES: To evaluate the outcome of patients after nephrectomy and removal of tumour thrombus and to assess the prognostic value of preoperative parameters. PATIENTS AND METHODS: Ninety-eight patients who were surgically treated between 2002 and 2011 were included. Patients' charts were reviewed, and patients with renal cell carcinoma (RCC) and concomitant tumour thrombus in the renal vein (RV) were compared with those with extended inferior vena cava (IVC) thrombus. Wilcoxon rank-sum test, Kaplan-Meier analysis and uni- and multivariate Cox regression analysis were used for statistical evaluation. RESULTS: Follow-up was 36 months (20-122 months), and 5-year disease-specific survival (DSS) and overall survival were 68.4 and 54.1 %, respectively. Patients with extended thrombus (levels 2-4) had higher intraoperative transfusion rates of concentrated red cells (CRC) and fresh-frozen plasma (FFP) compared with patients with thrombus confined to the RV (CRC: 5.8 vs. 1.5, p < 0.0001; FFP: 2.3 vs. 0.4, p = 0.0032). Surgery time (190 vs. 107 min, p < 0.0001), duration of hospitalisation (16 vs. 11 days, p = 0.0269), serum phosphate (3.64 vs. 3.29 mmol/l, p = 0.0369) and CRP levels (6.7 vs. 4.4 mg/dl, p = 0.0194) as well as aPTT were increased (33.7 vs. 29.6 s, p = 0.0059) in extended thrombus disease. In multivariate analysis, the presence of distant metastasis (p = 0.03) and lymphovascular invasion (p = 0.001), high platelet counts (p = 0.001) and high serum potassium levels (p = 0.032) proved to be independent prognostic factors. CONCLUSION: The surgical treatment of RCC with tumour thrombus in the RV or IVC has favourable results. Extended thrombus disease requires multidisciplinary approach. High serum potassium levels and platelet counts are associated with reduced DSS.
OBJECTIVES: To evaluate the outcome of patients after nephrectomy and removal of tumour thrombus and to assess the prognostic value of preoperative parameters. PATIENTS AND METHODS: Ninety-eight patients who were surgically treated between 2002 and 2011 were included. Patients' charts were reviewed, and patients with renal cell carcinoma (RCC) and concomitant tumour thrombus in the renal vein (RV) were compared with those with extended inferior vena cava (IVC) thrombus. Wilcoxon rank-sum test, Kaplan-Meier analysis and uni- and multivariate Cox regression analysis were used for statistical evaluation. RESULTS: Follow-up was 36 months (20-122 months), and 5-year disease-specific survival (DSS) and overall survival were 68.4 and 54.1 %, respectively. Patients with extended thrombus (levels 2-4) had higher intraoperative transfusion rates of concentrated red cells (CRC) and fresh-frozen plasma (FFP) compared with patients with thrombus confined to the RV (CRC: 5.8 vs. 1.5, p < 0.0001; FFP: 2.3 vs. 0.4, p = 0.0032). Surgery time (190 vs. 107 min, p < 0.0001), duration of hospitalisation (16 vs. 11 days, p = 0.0269), serum phosphate (3.64 vs. 3.29 mmol/l, p = 0.0369) and CRP levels (6.7 vs. 4.4 mg/dl, p = 0.0194) as well as aPTT were increased (33.7 vs. 29.6 s, p = 0.0059) in extended thrombus disease. In multivariate analysis, the presence of distant metastasis (p = 0.03) and lymphovascular invasion (p = 0.001), high platelet counts (p = 0.001) and high serum potassium levels (p = 0.032) proved to be independent prognostic factors. CONCLUSION: The surgical treatment of RCC with tumour thrombus in the RV or IVC has favourable results. Extended thrombus disease requires multidisciplinary approach. High serum potassium levels and platelet counts are associated with reduced DSS.
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