Abstract
Background
It has been suggested that IVC reconstruction of retroperitoneal tumors is not required when adequate collateral circulation is present, though transient rise in creatinine may occur post-operatively. There are no reports evaluating mid- and long-term effect on renal function in these patients. The purpose of this study is to assess whether resection of a right renal cell carcinoma and inferior vena cava with obstructing tumor thrombus is safe to perform without reconstructing the inferior vena cava with regard to long-term renal function.
Materials and Methods
A bi-institutional retrospective review was performed over an 18 year period, assessing patients with right renal cell carcinoma and obstructing level II-IV tumor thrombus.
Results
Twenty-two patients were included in the study. Median age was 62.5 (range 45-79) years old and 19 (86%) of the patients were male. One patient (5%) had a level II thrombus, 14 patients (64%) had a level III thrombus (IIIa n=3, IIIb n=6, IIIc n= 3, IIId n=2), and seven patients (32%) had a level IV thrombus. Intra-operatively, median estimated blood loss was 1.35 (range 0.2 – 25) L. The median length of hospital stay was 11 (range 5 – 50) days. Median preoperative creatinine was 1.20 (range 0.40 – 2.70) mg/dL and postoperatively, median creatinine was 1.3 (range 0.86 – 2.20) mg/dL. Median creatinine at 6 month and 12 months follow-up was 1.10 (range 0.5 – 1.6) and mg/dL 1.34 (range 0.6 – 2.0), respectively. Eight patients were lost to follow-up, and two died (one in the hospital, and the other three months post-operatively).
Conclusions
Resection of right renal cell carcinoma with inferior vena cava in the presence of an obstructing level II- IV tumor thrombus without reconstruction of the inferior vena cava appears not to have a significant adverse effect on long-term renal function.
Long-term outcomes of nephrectomy and inferior vena cava thrombectomy in patients with advanced renal cell carcinoma: A single-center experience
