Effects of bile reflux and intragastric microflora changes on lesions of remnant gastric mucosa after gastric operation

Table 1 Changes of bile acid concentration of gastric juice in different group (C_B/nmol·mL^-1, mean ± SD)

Group	n	Pre-operation	Post-operation
			1 wk	3 wk	1 yr
B-I	14	21.15 ± 9.36	36.50 ± 25.27	76.60 ± 48.38b	59.75 ± 29.80b
B-I	10	22.17 ± 7.74	45.13 ± 19.08a	52.98 ± 25.04a	43.79 ± 9.89b
SV + A	12	22.43 ± 10.15	39.04 ± 18.72	54.84 ± 27.49a	46.33 ± 14.52b
HSV	13	23.54 ± 11.56	30.12 ± 17.24	28.02 ± 16.18	27.68 ± 15.44

^aP < 0.05,

^bP < 0.01 vs HSV.

Table 2 Changes of total bacterial count of gastric juice in different groups (log10/mL, mean ± SD)

Group	n	Pre-operation	Post-operation
			1 wk	3 wk	1 yr
B-II	14	1.27 ± 2.14	3.83 ± 2.09a	4.86 ± 0.38b	3.97 ± 1.97b
B-I	10	1.77 ± 2.35	4.30 ± 1.64a	4.33 ± 1.55a	3.82 ± 1.99b
SV + A	12	1.84 ± 2.27	3.90 ± 1.79a	4.13 ± 1.68a	3.85 ± 2.04b
HSV	13	1.26 ± 2.07	2.41 ± 2.35	2.59 ± 2.78	1.56 ± 2.13

^aP < 0.05,

^bP < 0.01 vs HSV.

Table 3 Results of histological examination of remnant gastric mucosa 1 year after operation

Group	n	Normal	Superficial gatric	Atrophic gastritis			Intestinal metaplasia
				Slight	Medium	Severe	Slight	Medium	Severe
B-II	14	0	9	2	2	1	1	1	2
B-I	10	0	7	2	1	0	1	0	1
SV + A	12	0	8	1	1	1	1	1	1
HSV	13	0	10	1	1	0	1	0	0