Use of endoscopic tissue morcellator in removing retroperitoneal fat in retroperitoneoscopic radical nephrectomy

BMC Surgery

Table 1 The basic characteristics of the patients

Characteristics	the morcellator group	the control group	p
Number of patients	105	117
Age(years, mean ± SD)	61.3 ± 15.9	62.8 ± 14.1	0.489
Weight (kg, mean ± SD)	68.2 ± 13.7	66.5 ± 15.8	0.094
BMI (kg/m², mean ± SD)	24.6 ± 3.4	24.5 ± 2.6	0.500
Sex (n, %)			0.936
Men	58(55.2)	64(54.7)
Women	47(44.8)	53(45.3)
Tumor size (cm, mean ± SD)	5.6 ± 3.1	4.9 ± 3.6	0.087
Tumor side (n, %)			0.847
Right	48(45.7)	55(47.0)
Left	57(54.3)	62(53.0)
Clinical stage (n, %)^a			0.886
Stage T1	79(75.2)	89(76.1)
Stage T2a	26(24.8)	28(23.9)
Serum creatinine (μmol/L, mean ± SD)	76.2 ± 26.7	75.2 ± 25.4	0.617

^a Based on the American Joint Committee on Cancer’s (AJCC) clinical staging average 151.4 ± 108.4 ml. Again, the difference significantly favored the morcellator group, p<0.05. The postoperative hospitalization for the morcellator group was 3–7 days, average 4.6 ± 1.2 days; the control group was 3–9 days, average 4.9 ± 1.5 days. The difference was not statistically significant, p>0.05. The time required to remove the retroperitoneal fat was 1.3–5.0 min, average 2.1 ± 1.8 min.

ISSN: 1471-2482