Up-front systemic chemotherapy is a feasible option compared to primary tumor resection followed by chemotherapy for colorectal cancer with unresectable synchronous metastases

Table 2 Surgical procedures offered to patients in the PTR and USC groups

	PTR ( N = 42)	USC ( N = 6)	P value
Surgical procedure, n
Ileocecal resection	5	-	0.181
Right hemicolectomy	4	-
Transverse colectomy	4	-
Left hemicolectomy	2	-
Sigmoidectomy	11	2
Hartmann operation	3	1
Abdominoperineal resection	5	-
High anterior resection	3	-
Low anterior resection	5	2
Only ostomy creation	-	1
Approach			0.591
Open	34	4
Laparoscopic	8	2
Open conversion, n	0	0	N.A.

USC: up-front systemic chemotherapy group. PTR: primary tumor resection group. N.A.: not available. Variables were statistically analyzed by Fisher’s exact test (categorical, binary) or Chi-square test (categorical, more than three variables).

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