Risk factors for prolonged postoperative ileus in elderly patients undergoing laparoscopic radical resection for colorectal cancer

doi:10.4251/wjgo.v18.i6.120007

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World Journal of Gastrointestinal Oncology

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1948-5204

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.

World J Gastrointest Oncol. Jun 15, 2026; 18(6): 120007
Published online Jun 15, 2026. doi: 10.4251/wjgo.v18.i6.120007

Table 2 Comparison between non-prolonged postoperative ileus and prolonged postoperative ileus groups, n (%)

Variable	Non-PPOI (n = 118)	PPOI (n = 49)	SMD	P value
Sex			-	0.520
Male	49 (41.5)	23 (46.9)
Female	69 (58.5)	26 (53.1)
Age (years)	71.7 ± 5.4	70.9 ± 8.8	0.113	0.504
BMI (kg/m²)	23.8 ± 3.3	24.2 ± 3.2	0.138	0.415
Smoking history	40 (33.9)	17 (34.7)	-	0.921
History of abdominal surgery	18 (15.3)	9 (18.4)	-	0.619
Coronary heart disease	19 (16.1)	7 (14.3)	-	0.768
mFI-5 ≥ 2	40 (33.9)	31 (63.3)	-	< 0.001
Preop CEA (ng/mL)	3.74 (2.09-10.3)	4.33 (2.52-7.42)	0.104	0.699
Preoperative albumin (g/L)	38.35 (36.1-41.2)	38 (35.3-41.1)	0.133	0.684
AJCC staging			-	0.251
I	15 (12.7)	11 (22.5)
II	54 (45.8)	18 (36.7)
III	49 (41.5)	20 (40.8)
ASA score			-	0.080
I	2 (1.7)	1 (2)
II	87 (73.7)	28 (57.1)
III	29 (24.6)	20 (40.8)
Auxiliary incision length (cm)	5 (5-5)	5 (5-5)	0.120	0.401
Operation time (minute)	176 ± 50	168 ± 60.9	0.151	0.374
Tumor location			-	0.167
Rectal cancer	87 (73.7)	41 (83.7)
Colon cancer	31 (26.3)	8 (16.3)
Lymphovascular/perineural invasion	36 (30.5)	12 (24.5)	-	0.434
Postoperative opioid use			-	0.008
Yes	39 (33.1)	27 (55.1)
No	79 (66.9)	22 (44.9)
Postoperative albumin (g/L)	32.7 (31-35.08)	32.06 (30.3-33.96)	0.093	0.129
POD 1 fluid (mL)	3611 (2900-4100)	3660 (2766-4130)	0.026	0.934
POD 2 fluid (mL)	3494 (2880-3930)	3300 (2844-3890)	0.175	0.340
POD 3 fluid (mL)	3465 (2780-4000)	3320 (2800-3936)	0.124	0.566
POD 1 K⁺ (mmol/L)	4.265 (4-4.5)	4.1 (3.63-4.4)	0.499	0.012
POD 1 Ca²⁺ (mmol/L)	2.03 (1.96-2.12)	2.01 (1.94-2.11)	0.085	0.402
POD 1 NLR	9.035 (7.6-12.6)	8.4 (6.91-11.38)	0.179	0.141
POD 1 PNI	37.54 (35.1-40.52)	37.55 (35.11-39.9)	0.025	0.965
POD 1 SII	1866.215 (1321.88-2471.95)	1683.44 (1156.09-2238.31)	0.274	0.174
POD 1 PIV	1238.155 (749.32-2038.9)	1071.18 (704.18-1790.47)	0.054	0.551

SMD: Standardized mean differences; BMI: Body mass index; Pre-op CEA: Preoperative carcinoembryonic antigen; mFI-5: Modified 5-item Frailty Index; PPOI: Prolonged postoperative ileus; ASA: American Society of Anesthesiologists; POD 1: Postoperative day 1; NLR: Neutrophil-to-lymphocyte ratio; PNI: Prognostic nutritional index; SII: Systemic immune-inflammation index; PIV: Pan-immune-inflammation value.

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Citation: Liu H, Chen Y, Guo SG, Liu Z, Huang YS, Zhu ZD, Feng YJ, Yang Q, Liu YL. Risk factors for prolonged postoperative ileus in elderly patients undergoing laparoscopic radical resection for colorectal cancer. World J Gastrointest Oncol 2026; 18(6): 120007
URL: https://www.wjgnet.com/1948-5204/full/v18/i6/120007.htm
DOI: https://dx.doi.org/10.4251/wjgo.v18.i6.120007

Liu H, Chen Y, Guo SG, Liu Z, Huang YS, Zhu ZD, Feng YJ, Yang Q, Liu YL. Risk factors for prolonged postoperative ileus in elderly patients undergoing laparoscopic radical resection for colorectal cancer. World J Gastrointest Oncol 2026; 18(6): 120007 [DOI: 10.4251/wjgo.v18.i6.120007]

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