Review Article

Acupuncture and Related Therapies for Treatment of Postoperative Ileus in Colorectal Cancer: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

Table 2

Acupuncture therapy versus sham acupuncture therapy for recovery of gastrointestinal function.

Outcome Treatment type, cancer, participants (number)Acupuncture therapyEffect Size MD [95 CI]    Study ID No.†
I2

Time to first bowel sounds (hours) Open surgery, CRC (39)Electro-acup.-6.00 [-13.26, 1.26]21
Open surgery, elderly, CRC (72)Point application-15.8 [-19.61, -11.99]18
Pooled result (111) 2 RCTsAll acupuncture therapies-11.41 [-20.96, -1.85]  
81.8%
18, 21

Time to first flatus (hours)
Laparoscopic surgery, CRC (110)Electro-acup.-7.20 [-16.21, 1.81]7
Open surgery, CRC (39)Electro-acup.-9.00 [-19.09, 1.09]21
Pooled result (149)Electro-acup.-8.00 [-14.72, -1.28] 0%7, 21
Open surgery, CRC (60)Acupressure-19.92 [-32.57, -7.27]1
Open surgery, elderly, CRC (72)Point application-26.30 [-32.81, -19.79]18
Pooled result (281) 4 RCTsAll acupuncture therapies-15.79 [-26.10, -5.49]     
79.9%
1, 7, 18, 21

Time to first defecation (hours) Laparoscopic surgery, CRC (110)Electro-acup.-21.60 [-37.10, -6.11]7
Open surgery, CRC (39)Electro-acup.-4.00 [-34.81, 26.81]21
Pooled result (149)Electro-acup.-18.04 [-31.90, -4.19]     
0.1%
7, 21
Open surgery, CRC (60)Acupressure-12.00 [-31.60, 7.60]1
Open surgery, elderly, CRC (72)Point application-39.80 [-48.16, -31.44]18
Pooled result (281)4 RCTsAll acupuncture therapies-22.42 [-39.14, -5.70]     
75.4%
1, 7, 18, 21

Time to first liquid intake (days)Open surgery, CRC (60)Acupressure-0.83 [-1.45, -0.21]1

Time to resume normal diet (days)Laparoscopic surgery, CRC (110)Electro-acup.-0.10 [-0.46, 0.26]7

Frequency of bowel sounds at 40 hours1Open surgery, CRC (60)Acupressure3.43 [0.77, 6.09]1

means statistically significant; see Table 1; 1: frequency per minute assessed during a three minute interval.
CI: confidence interval; MD: mean difference.