Prognostic Outcomes and Risk Factors for Patients with Renal Cell Carcinoma and Venous Tumor Thrombus after Radical Nephrectomy and Thrombectomy: The Prognostic Significance of Venous Tumor Thrombus Level

Table 1

Clinical and surgical characteristics of patients.

	RV	IVC level I	IVC level II	IVC level III
Patients ()	93	49	21	6
Male (%)	75.3 (70/93)	59.2 (29/49)	71.4 (15/21)	83.3 (5/6)	0.219
Age (year)	59.5 ± 9.7	54.4 ± 12.1	55.1 ± 10.2	54.7 ± 10.0	0.03
Symptoms					0.491
Yes	59	36	15	3
No	34	13	6	3
Tumor position					<0.001
Left	60	11	2	3
Right	33	38	19	3
Operation time (hour)					<0.001
Median	3.0	4.0	7.8	8.8
Range	1.4–6.5	2.0–12.0	4.5–11.5	7.5–13.0
Blood loss (mL)					<0.001
Median	400	700	3000	2700
Range	30–6850	100–12800	500–12000	1800–4000
Blood transfusion (mL)					<0.001
Median	0	350	1550	2700
Range	0–4250	0–6500	0–7400	1900–10000