Observational Study
Copyright ©The Author(s) 2024.
World J Gastrointest Oncol. Apr 15, 2024; 16(4): 1334-1343
Published online Apr 15, 2024. doi: 10.4251/wjgo.v16.i4.1334
Table 1 Baseline characteristics of included studies
Ref.CountryStudy dateStudy typeSample size
Years old
Age rangeNOS
ERAS
Conventional
ERAS
Conventional
Xiao et al[17], 2022China2019-2021Prospective505072.7 ± 2.772.3 ± 2.3≥ 708
Franceschilli M et al[22], 2022Italy2013-2021Retrospective232169.7 ± 9.864.3 ± 6.7≥ 187
Weindelmayer et al[23], 2021Italy2015-2019Retrospective248103687060-787
Cao S et al[24], 2021China2014-2018Prospective858670.8 ± 3.471.4 ± 3.765-857
Liu et al[25], 2016China2014-2015Retrospective424268.5 ± 4.569.5 ± 5.4≥ 608
Bu et al[26], 2015China2010-2014Retrospective646480.1 ± 4.079.6 ± 3.545-908
Table 2 Summary of characteristics between the enhanced recovery after surgery group and the conventional group
Characteristics
Studies
Participants (ERAS/conventional)
Odds ratio/mean difference (95%CI)
Heterogeneity
Age (yr)5264/2630.06 (-0.18, 0.30); P = 0.65I2 = 46.03%; P = 0.12
Sex, female6512/3660.95 (0.71, 1.26); P = 0.71I2 = 0.00%; P = 0.63
BMI (kg/m2)5264/263-0.05 (-0.22, 0.12); P = 0.54I2 = 0.00%; P = 0.45
Smoking2333/1891.00 (0.69, 1.44); P = 0.98I2 = 0.00%; P = 0.62
ASA, ≥24222/2211.03 (0.64, 1.64); P = 0.92I2 = 0.00%; P = 0.58
TNM stage
    I6ReferenceReferenceReference
    II6263/2151.03 (0.69, 1.54); P = 0.88I2 = 0.00%; P = 0.81
    III6399/2930.89 (0.64, 1.23); P = 0.47I2 = 0.00%; P = 0.46
Type of surgery
    Total3ReferenceReferenceReference
    Distal3122/1261.28 (0.74, 2.22); P = 0.38I2 = 0.00%; P = 0.97
    Proximal369/721.36 (0.62, 2.98); P = 0.44I2 = 0.00%; P = 0.38
Type of reconstruction
    Roux-en-Y2ReferenceReferenceReference
    Billroth-I256/581.25 (0.59, 2.67); P = 0.56I2 = 0.00%; P = 0.40
    Billroth-II278/801.17 (0.62, 2.22); P = 0.63I2 = 0.00%; P = 0.92
    Neoadjuvant chemotherapy2271/1242.74 (1.64, 4.57); P = 0.00*I2 = 0.00%; P = 0.45
Comorbidities
    Cardiovascular system disease4462/3161.00 (0.72, 1.39); P = 1.00I2 = 0.00%; P = 0.86
    Respiratory system diseases4462/3161.04 (0.62, 1.73); P = 0.89I2 = 15.67%; P = 0.31
    Renal system diseases2333/1890.92 (0.47, 1.82); P = 0.82I2 = 0.00%; P = 0.57
    Diabetes4462/3160.73 (0.48, 1.12); P = 0.15I2 = 12.29%; P = 0.34
Table 3 Operative and postoperative complications between enhanced recovery after surgery group and conventional group
Characteristics
Studies
Participants (ERAS/conventional)
Odds ratio/mean difference (95%CI)
Heterogeneity
Operative time (min)4241/2420.05 (-0.16, 0.26); P = 0.64I2 = 25.46%; P = 0.26
Postoperative hospital stays10179/177-0.51 (-0.72, -0.30); P = 0.00aI2 = 0.00%; P = 0.52
Operative blood loss (mL)2108/108-0.09 (-0.36, 0.17); P = 0.49I2 = 0.00%; P = 0.41
Postoperative bleeding2108/1070.47 (0.08, 2.23); P = 0.39I2 = 0.00%; P = 0.93
Time to first flatus(defecation)4129/127-0.30 (-0.55, -0.06); P = 0.02aI2 = 0.00%; P = 0.74
Anastomotic leakage5470/3241.10 (0.40, 3.03); P = 0.86I2 = 0.00%; P = 0.59
Intestinal obstruction3156/1563.24 (1.07, 9.78); P = 0.04aI2 = 0.00%; P = 0.91
Pulmonary related complication6512/3660.76 (0.43, 1.35); P = 0.35I2 = 0.00%; P = 0.87
Cardiovascular related complication2333/1890.53 (0.25, 1.11); P = 0.09I2 = 0.00%; P = 0.93
Nausea and vomiting2106/1064.07 (1.29, 12.84); P = 0.02aI2 = 0.00%; P = 0.52
Gastric retention2106/1065.69 (2.00, 16.20); P = 0.00aI2 = 2.46%; P = 0.31
Urinary retention2106/1060.68 (0.25, 1.88); P = 0.46I2 = 0.00%; P = 0.57
Incision infection2106/1062.26 (0.49, 10.41); P = 0.30I2 = 0.00%; P = 0.83
Urinary tract infection2106/1060.52 (0.18, 1.46); P = 0.21I2 = 0.00%; P = 0.86
Reoperation3356/2100.46 (0.07, 3.00); P = 0.42I2 = 29.68%; P = 0.24
Readmission5470/3241.42 (0.46, 4.33); P = 0.54I2 = 47.15%; P = 0.11