[Oncological results of renal cancer with inferior vena cava thrombosis after nephrectomy].

OBJECTIVE

The objective of this study was to evaluate survival and risk of recurrence in patients undergoing nephrectomy with resection of inferior vena cava tumour thrombus in our department.

MATERIAL AND METHODS

From June 1991 to March 2003, 40 patients underwent radical nephrectomy with resection of inferior vena cava tumour thrombus. The upper limit of the tumour thrombus was below the hepatic veins in 21 cases (52.5%) and above the hepatic veins in 19 cases (47.5%), with thrombus in the right atrium in 6 cases (15%). Cardiopulmonary bypass (CPB) was used in 12 patients (30%)

RESULTS

With a mean follow-up of 28.5 +/- 36.8 months (range: 0-150), 22 patients (55%) have died. The 2- and 5-year overall survival rates were 45.2% and 38. 7%, respectively. Local and/or metastatic recurrence was observed in 28 patients (70%) after a mean interval of 18 +/- 22.9 months (range: 1-104). Patients with tumour thrombus derived from the left kidney had a higher local recurrence rate than patients with thrombus derived from the right kidney (p = 0.0194). The 2- and 5-year recurrence-free survival rates were 28.3% and 8.9%, respectively. Only stage pN had a statistically significant prognostic value on overall survival, but not on recurrence-free survival. At the end of the study, only 1 patient (2.5%) can be considered to be cured with no disease progression with a sufficient follow-up (52 months) after nephrectomy.

CONCLUSION

Nephrectomy with resection of tumour thrombus from the inferior vena cava provides a gain in terms of medium-term survival, but the majority of patients are not cured by this major surgery. Only lymph node status has a prognostic value.