Survival benefit in patients after palliative resection vs non-resection colon cancer surgery

Table 1 Main presenting symptoms of patients with palliative surgery for colorectal cancer n (%)

	Resection	Non-resection	Total
Screnning Program	16 (34)	5 (23)	21 (31)
Symptomatic	28 (61)	13 (61)	41 (61)
Symptomatic with obstruction	2 (4)	3 (14)	5 (7)

Table 2 Sites of the index primary tumor n (%)

	Resection	Non-resection	Total
Right colon	13 (27)	1 (5)	14 (19)
Colon transversum	1 (2)	0 (0)	1 (1)
Left colon	2 (6)	0 (0)	2 (4)
Sigma	16 (34)	4 (19)	20 (28)
Rectum	14 (30)	16 (76)	30 (43)

Table 3 cTNM characteristics of patients with resection and with non-resection surgery n (%)

	Resection (n = 46)	Non-resection (n = 21)	Total (n = 67)
cTx	0 (0)	4 (19)	4 (6)
cT2	4 (9)	0 (0)	4 (6)
cT3	14 (32)	5 (24)	19 (29)
cT4	28 (60)	12 (57)	40 (59)
cN0	7 (15)	2 (10)	9 (16)
cN1	12 (26)	6 (29)	18 (26)
cN2	19 (41)	0 (0)	19 (28)
cN3	8 (16)	0 (0)	8 (11)
cN+	0 (0)	13 (62)	13 (19)
cM0	8 (17)	8 (39)	16 (24)
cM1	38 (82)	13 (61)	51 (75)

Table 4 Types of surgery n (%)

	Resection	Non-resection
Rectum resection	13 (28)
Rectum exstirpation	3 (7)
Sigma resection	10 (28)
Hemicolectomy left	2 (4)
Hemicolectomy right	11 (24)
Sigma + Rectum resection	5 (11)
Other Resections	2 (4)
Ileostomy		21 (100)

Table 5 Characteristics of patients who underwent resection and non-resection surgery¹n (%)

	Resection (n = 46)	Non-resection (n = 21)
Sex: M/F	29/17 (63/37)	14/7 (67/33)
Median age	61.6	63.7
Peritoneal seedings	7 (15)	5 (24)
Operative mortality	2 (4)	0 (0)
Morbidity	3 (7)	0 (0)
Presence of distant metastasis	38 (82)	13 (62)
Median day of hospital stay (range) (postoperative mortality excluded)	16.6 (7-60)	14.7 (7-41)

¹Mann-Whitney U test.

Table 6 Patients with post-operative therapies n (%)

	Resection (n = 46)	Non-resection (n = 21)
Chemo	39 (85)	8 (38)
Radiation	0 (0)	2 (10)
Chemo and radiation	2 (4)	4 (19)

Table 7 Factors affecting the survival of patients with non-curative resection

	Resection		Non-resection
	n	median survival (d)	n	median survival (d)
Sex
Male	29	742.1	14	218.7
Female	17	589.0	7	261.1
Peritoneal metastasis
Yes	7	683.4	5	201.6
No	39	685.0	16	333.0
Bilobar liver metastasis
Yes	38	599.7	13	220.4
No	8	578.2	8	253.1
Resection
Yes	46	543.8	0
No	0		21	232.9
Lymph nodea
Positive	37	660.0	19	225.8
Negative	9	790.8	2	300.0