- Review
- Open access
- Published:
The efficacy of ileostomy after laparoscopic rectal cancer surgery: a meta-analysis
World Journal of Surgical Oncology volume 19, Article number: 318 (2021)
Abstract
Background
Protective ileostomy is always applied to avoid clinically significant anastomotic leakage and other postoperative complications for patients receiving laparoscopic rectal cancer surgery. However, whether it is necessary to perform the ileostomy is still controversial. This meta-analysis aims to analyze the efficacy of ileostomy on laparoscopic rectal cancer surgery.
Methods
Cochrane Library, EMBASE, Web of Science, and PubMed were applied for systematic search of all relevant literature, updated to May 07, 2021. Studies compared patients with and without ileostomy for laparoscopic rectal cancer surgery. We applied Review Manager software to perform this meta-analysis. The quality of the non-randomized controlled trials was assessed using the Newcastle-Ottawa scale (NOS), and the randomized studies were assessed using the Jadad scale.
Results
We collected a total of 1203 references, and seven studies were included using the research methods. The clinically significant anastomotic leakage rate was significantly lower in ileostomy group (27/567, 4.76%) than that in non-ileostomy group (54/525, 10.29%) (RR = 0.47, 95% CI 0.30–0.73, P for overall effect = 0.0009, P for heterogeneity = 0.18, I2 = 32%). However, the postoperative hospital stay, reoperation, wound infection, and operation time showed no significant difference between the ileostomy and non-ileostomy groups.
Conclusion
The results demonstrated that protective ileostomy could decrease the clinically significant anastomotic leakage rate for patients undergoing laparoscopic rectal cancer surgery. However, ileostomy has no effect on postoperative hospital stay, reoperation, wound infection, and operation time. The efficacy of ileostomy after laparoscopic rectal cancer surgery: a meta-analysis.
Introduction
Colorectal cancer (CRC) ranks third in the global incidence of malignant tumors, affecting human health seriously [1]. According to the American Cancer Society statistics, the incidence of CRC in males is lower than that in prostate and lung cancer. In females, CRC incidence is lower than that in breast and lung cancer [2]. CRC ranks second in males and third in females worldwide [2].
Since the 1990s, laparoscopic surgery has attracted more and more attention as a new minimally invasive surgical method to treat many diseases [3, 4]. Many multi-center researchers and a large number of randomized controlled trials have confirmed the safety and reliability of laparoscopic rectal cancer surgery [5,6,7]. The laparoscopic operation can follow the total mesorectal excision (TME) principle with many advantages, including minor surgical trauma and bleeding, lower surgical complications and postoperative pain, and faster postoperative recovery to achieve R0 resection of the tumor [8, 9]. As a result, laparoscopic low anterior resection (LAR) has become an essential operation for rectal cancer.
Many patients receiving rectal cancer surgery routinely undergo protective ileostomy to avoid clinically significant anastomotic leakage and other complications. However, whether it is necessary to perform the ileostomy is still controversial. At present, there are only a small number of randomized controlled trials and comparative studies assessing the effect of ileostomy during laparoscopic rectal cancer surgery. Therefore, the efficacy of ileostomy on laparoscopic rectal cancer surgery was analyzed using the meta-analysis.
Methods
Search strategies
We perform this study according to the stated guidelines of Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) [10]. The protocol was registered with PROSPERO in advance (CRD42021253824) (https://www.crd.york.ac.uk/PROSPERO/#recordDetails). Cochrane Library, EMBASE, Web of Science, and PubMed were applied for systematic search of all relevant literature, updated to May 07, 2021, using the search strategy including the terms for “Rectum tumor,” “Rectal Neoplasms,” “Ileostomy,” “Ileostomies,” “Laparoscopy,” “Celioscopy,” and their variants. The detailed search strategy was shown in Additional file 1. In addition, reference lists of all primary studies and systematic reviews published were searched manually for additional trials.
Inclusion and exclusion criteria
The inclusion criteria include [1] patients who were diagnosed with rectal cancer by histopathology and were treated with laparoscopic rectal cancer surgery, [2] clinical trials compared patients with and without protective ileostomy, [3] patients were grouped by whether they received protective ileostomy [4] at least one of the following outcomes were reported (incidence of postoperative anastomotic fistula, reoperation rate, length of hospital stay, incidence of postoperative peritonitis, and postoperative incision infection rate), and [5] studies reported in English.
The exclusion criteria include [1] studies included benign colorectal diseases [2]; review, letter, case report, or meta-analysis [3]; other surgical methods were used, such as open abdominal Dixon surgery, Miles, robot-assisted resection of the rectum, and natural orifice transluminal endoscopic surgery (NOTES) [4]; single group studies; and [5] complete extraction could not be obtained.
In the case of studies comprising the same patient cohort, we only selected the most recent or the complete study.
Data extraction and methodology quality assessment
MY, ZHM, ZLX, HHY, and LJN extracted and assessed the data independently. At least two researchers assessed each citation. The extracted data mainly included the first author, publication year, number of patients, age, sex, clinical characteristics, and outcomes. The primary outcome mainly included clinically significant anastomotic leakage rate, and the secondary outcomes include operation time, length of hospital stay, complication rate, and reoperation rate. Any uncertainties about the extracted data were carefully discussed until a consensus was reached.
The NOS was applied for the assessment of non-randomized controlled trials in this study, including selecting patients, comparability and controls on the study design, and outcome assessment. The study was considered moderate to high quality if the score was more than six. Randomized studies were assessed with the Jadad scale. Two researchers scored each study independently, and a discussion was made if there was a disagreement.
Statistical analysis
Review Manager 5.3 provided by the Cochrane Collaboration Network was used for statistical analysis. Weighted mean differences (MDs) and risk ratios (RRs) with 95% confidence intervals (CI) were calculated for analyzing continuous and dichotomous data, respectively. P < 0.05 was considered as statistical significance. I2 test was applied to assess the heterogeneity of the studies. There was significant heterogeneity when I2 > 50% or P < 0.05 and the random-effects model should be used. Otherwise, the fixed-effects model should be applied. We would employ a sensitivity analysis when there was significant heterogeneity of studies. By omitting each study at a time, the effect of an individual study on the overall heterogeneity could be analyzed. Funnel plots assessed publication bias.
Results
Study characteristics
According to the research methods, there were a total of 1203 references in this study, including 15 references in Cochrane Library, 650 references in EMBASE, 403 references in Web of Science, 132 references in PubMed, and other three additional references identified through manual reference searching. The 238 duplicated citations were deleted, and 952 studies were excluded after scanning the title and abstract of the remaining citations according to the inclusion and exclusion criteria. Finally, seven cohort studies were chosen in this meta-analysis [11,12,13,14,15,16,17], and only one was a randomized controlled trial (RCT), and others were comparative. Figure 1 shows the flow diagram of the included studies.
There were 1092 patients in this meta-analysis, with 567 patients in the ileostomy group and 525 patients in the non-ileostomy group, with an average patient age of 61.5 years in the ileostomy group and 62.6 in the no ileostomy group. All patients had been confirmed as rectal cancer by postoperative pathologic diagnosis and met the standard of laparoscopic rectal cancer surgery. We collected the characteristics of all the seven included cohort studies in Table 1, where six comparative studies scored six or more assessed by NOS, and one RCTs scored three assessed with the Jadad scale.
Pooled analysis
Clinically significant anastomotic leakage
All seven studies involved the clinically significant anastomotic leakage data. Figure 2 shows significant difference in the clinically significant anastomotic leakage rate between the ileostomy group (27/567, 4.76%) and non-ileostomy group (54/525, 10.29%) (RR = 0.47, 95% CI 0.30–0.73, P for overall effect = 0.0009, P for heterogeneity = 0.18, I2 = 32%). The funnel plot on clinically significant anastomotic leakage shows that all the studies lie inside the limit of 95% CI, indicating no obvious publication bias (Fig. 3).
Postoperative hospital stay
Four studies reported the postoperative hospital stay with 419 patients in the ileostomy group and 376 patients in the non-ileostomy group. There is no statistical difference between the two groups (Fig. 4, MD = −0.18, 95% CI −4.18–3.83, P for overall effect = 0.93, P for heterogeneity < 0.00001, I2 = 98%).
Reoperation
The reoperation outcome in all included studies was specifically caused by anastomotic leakage. Three studies reported the reoperation outcome with 331 patients in the ileostomy group and 278 patients in the non-ileostomy group. There is no statistical difference between the two groups (Fig. 5, RR = 0.69, 95% CI 0.14–3.40, P for overall effect = 0.65, P for heterogeneity = 0.26, I2 = 22%).
Wound infection
Three studies reported the data on wound infection. The analysis shows no difference in wound infection rate between ileostomy group (5/138, 3.62%) and non-ileostomy group (6/166, 3.61%) (Fig. 6, RR = 1.01, 95% CI 0.34–3.01, P for overall effect = 0.98, P for heterogeneity < 0.32, I2 = 11%).
Operation time
Three studies reported the operation time of 341 patients in the ileostomy group and 338 patients in the non-ileostomy group. There was significant heterogeneity among the studies, and a random-effects model was used for meta-analysis. Data analysis shows no statistical difference between the two groups (Fig. 7, MD = 14.17, 95% CI −12.95–41.29, P for overall effect = 0.31, P for heterogeneity < 0.00001, I2 = 96%).
Sensitivity analysis
There was no significant heterogeneity in the clinically significant anastomotic leakage, reoperation after laparoscopic rectal cancer surgery, and wound infection after surgery. As a result, we performed the fixed-effects model analysis for these three models. Significant heterogeneity was observed in the postoperative hospital stay and operation time. Therefore, the random-effects model was performed for the two models. Unfortunately, the sensitivity analysis did not reduce heterogeneity in the postoperative hospital stay and operation time. After removing the study of Shimizu et al., no significant heterogeneity was observed in the operation time. However, during the sensitivity analysis, the pooled results of postoperative hospital stay and operation time remained unchanged. We analyze that the heterogeneity may be due to the regional differences and medical level. For example, the laparoscopic rectal cancer surgery regimens have changed significantly, and postoperative treatment regimens have varied a lot over the past 10 years.
Discussion
Colorectal malignancies are common digestive system tumors with increased morbidity and mortality every year [1]. Surgical resection is still the main method to treat CRC. TME is the key to radical resection for rectal cancer [4, 8, 18], and rectal washout has been integrated with the TME technique in recent years [19]. According to the principles of TME, laparoscopic LAR for rectal cancer has become the mainstream treatment method for patients [20, 21]. Mainly, laparoscopic tumor-specific mesorectal excision (TSME) has been utilized for upper rectal cancer [22]. Many problems that cannot be solved by conventional laparotomy, such as anus-preserving surgery for rectal cancer with anal distance less than 5cm, can be solved by laparoscopic technique, which significantly improves the life quality of patients [23, 24]. Laparoscopic surgery has many advantages, such as a clear vision of operation, small incision, mild postoperative pain, and short hospital stay [25,26,27]. Especially, to pursue better treatment benefits, many laparoscopic surgery regimens have been improved, such as 3D laparoscopy, robotic surgery, single-incision laparoscopic surgery, two-port laparoscopic anterior resection, and LAR with natural orifice specimen extraction (NOSE-LAR) [28,29,30,31,32]. Moreover, some researchers proposed that sphincter-saving rectal resections can be seen as a feasible alternative to extra levator abdominoperineal resection or transanal total mesorectal excision [33].
Clinically significant anastomotic leakage is the main postoperative complication that threatens the life of patients with rectal cancer. The CT scan was the most common diagnostic method, and contrast enema, endoscopic examination, reoperation, and other postoperative complications also can assist in the diagnosis [34]. Clinically significant anastomotic leakage for laparoscopic rectal cancer surgery usually occurs on the 7th day post-surgery [35]. Generally, the small anastomotic leakage can be treated through conservative treatment (fasting water, nutritional support, anti-inflammation, fluid replacement), while the severe clinically significant anastomotic leakage requires surgical intervention [36]. We mainly focused on whether protective ileostomy can decrease the rate of clinically significant anastomotic leak, and tiny leaks are not evaluated in any studies.
Protective colostomy or ileostomy has been performed to reduce the incidence of clinically significant anastomotic leakage. However, it is still controversial that whether it is beneficial to perform the protective stoma. Some surgeons believe that preventive intestinal stoma is unnecessary because most clinically significant anastomotic leakage can be cured conservatively, and intestinal stoma increases the cost of hospitalization and requires secondary surgery [37,38,39]. The second surgery will undoubtedly delay the subsequent treatment of patients with rectal cancer surgery, especially those old and have many underlying diseases (such as postoperative chemoradiotherapy), and even accelerate the deterioration and increase mortality [40,41,42,43]. On the other hand, frail patients often require ileostomy closure surgery before adjuvant therapy (due to frequent nutritional deficiencies), which delays adjuvant therapy.
Moreover, researchers have not agreed on the concrete interval time from ileostomy closure surgery to adjuvant therapy. Some researchers believe that protective intestinal stoma can reduce intestinal edema, promote local intestinal function recovery, facilitate anastomotic healing, and reduce clinically significant anastomotic leakage and other complications [11]. This meta-analysis was based on seven comparative studies with more than 1000 patients. The results showed that protective ileostomy could reduce clinically significant anastomotic leakage in patients who underwent laparoscopic rectal cancer surgery. However, ileostomy has no influence on postoperative hospital stay, reoperation, wound infection, and operation time.
According to the principles of enhanced recovery after surgery (ERAS), postoperative recovery has been significantly increased [44]. The postoperative hospital stay showed no difference in the analyzed groups. According to the combination of included studies and clinical experience, although preventive stoma could reduce clinically significant anastomotic leakage, most clinically significant anastomotic leakage could be cured through conservative treatment. There was no significant difference in the perioperative reoperation rate between the two groups of patients. Besides, there was no statistical difference in wound infection rate and operation time in the ileostomy and non-ileostomy groups.
There are some limitations to this meta-analysis. First of all, the funnel plot suggests that publication bias has existed in this study because the included studies are all retrospective studies without a random controlled trial. Second, the surgeons have a clinical bias in performing protective ileostomy for patients receiving laparoscopic rectal cancer surgery possibly. Many different factors can influence the clinically significant anastomotic leakage rate, such as anastomotic position, sex, tumor diameter, operation time, location of ligation IMA, and postoperative management [36, 45, 46]. Therefore, there is bias in choosing ileostomy for patients receiving laparoscopic rectal cancer surgery. Third, the bias is caused by the length between the anastomosis and anal verge, not reported in all studies. It seems that clinically significant anastomotic leakage is tentative to occur when the anastomosis is lower [47, 48]. Fourth, the types of performed rectal resection are not thoroughly evaluated. In four studies, the authors have reported them as LAR, while in the other three studies, it has been TME. The other two studies have not reported rectal resection type. However, concerning the relative publication date of all seven studies, LAR is performed according to the principles of TME in all the cases. In addition, because it is unclear whether these included patients have received neoadjuvant therapy or not, this article did not evaluate the influence of neoadjuvant therapy on the leakage rate. Interestingly, a meta-analysis has reported that neoadjuvant therapy did not increase the rate of postoperative anastomotic leakage after middle and low rectal anterior resection [49], which guides future research. Finally, this study did not analyze whether ileostomy can affect the long-term survival rate of patients, bowel function, and postoperative quality of life.
Conclusion
The study indicates that protective ileostomy can decrease the clinically significant anastomotic leakage rate in laparoscopic rectal cancer surgery patients. However, ileostomy has no effects on postoperative hospital stay, reoperation, and wound.
Availability of data and materials
The datasets supporting the conclusions of this article are included within the article.
Abbreviations
- NOS:
-
Newcastle-Ottawa scale
- CRC:
-
Colorectal cancer
- TME:
-
Total mesorectal excision
- LAR:
-
Low anterior resection
- NOTES:
-
Natural orifice transluminal endoscopic surgery
- MDs:
-
Mean differences
- RRs:
-
Risk ratios
- CI:
-
Confidence intervals
- RCTs:
-
Randomized controlled trials
- TSME:
-
Tumor-specific mesorectal excision
- NOSE-LAR:
-
LAR with natural orifice specimen extraction
- ERAS:
-
Enhanced recovery after surgery
- IMA:
-
Inferior mesenteric artery
References
Siegel RL, Miller KD, Goding Sauer A, Fedewa SA, Butterly LF, Anderson JC, et al. Colorectal cancer statistics, 2020. CA Cancer J Clin. 2020;70(3):145–64.
Siegel RL, Miller KD, Jemal A. Cancer statistics, 2020. CA Cancer J Clin. 2020;70(1):7–30.
Toledo AE, Shapiro LS, Farrell JF, Magro CM, Polito J. Laparoscopy shows superiority over endoscopy for early detection of malignant atrophic papulosis gastrointestinal complications: a case report and review of literature. BMC Gastroenterol. 2015;15:156.
Tan CHN, Chong CS, Fong YF, Rauff S, Tan KK. Laparoscopic anterior resection with transvaginal specimen extraction (TVSE) for colorectal cancer and concomitant total hysterectomy and bilateral salpingo-oophrectomy (THBSO): a technical description. Ann Surg Oncol. 2017;24(2):441.
Tei M, Otsuka M, Suzuki Y, Kishi K, Tanemura M, Akamatsu H. Safety and feasibility of single-port laparoscopic low anterior resection for upper rectal cancer. Am J Surg. 2018;216(6):1101–6.
Tjandra JJ, Chan MKY, Yeh CH. Laparoscopic- vs. hand-assisted ultralow anterior resection: a prospective study. Dis Colon Rectum. 2008;51(1):26–31.
Trottier D, Huynh H, Sabri E, Soto C, Scheer A, Moloo H, et al. A comparison of open and laparoscopic resections for rectal cancer based on the proposed cost II outcome measures. Dis Colon Rectum. 2009;52(4):849.
van der Pas MHGM, Haglind E, Cuesta MA, Fürst A, Lacy AM, Hop WCJ, et al. Laparoscopic versus open surgery for rectal cancer (COLOR II): short-term outcomes of a randomised, phase 3 trial. Lancet Oncol. 2013;14(3):210–8.
Pugliese R, Di Lernia S, Sansonna F, Maggioni D, Ferrari GC, Magistro C, et al. Laparoscopic resection for rectal adenocarcinoma. Eur J Surg Oncol. 2009;35(5):497–503.
Moher D, Liberati A, Tetzlaff J, Altman DG, Grp P. Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement. Int J Surg. 2010;8(5):336–41.
Huang WH, Lin L, Hou KQ. Application value of an improved loop ileostomy in laparoscopic low and ultra-low rectal resection for colorectal cancer; 2014.
Ihnat P, Gunkova P, Peteja M, Vavra P, Pelikan A, Zonca P. Diverting ileostomy in laparoscopic rectal cancer surgery: high price of protection. Surg Endosc. 2016;30(11):4809–16.
Karahasanoglu T, Hamzaoglu I, Baca B, Aytac E, Erenler I, Erdamar S. Evaluation of diverting ileostomy in laparoscopic low anterior resection for rectal cancer. Asian J Surg. 2011;34(2):63–8.
Mari FS, Di Cesare T, Novi L, Gasparrini M, Berardi G, Laracca GG, et al. Does ghost ileostomy have a role in the laparoscopic rectal surgery era? A randomized controlled trial. Surg Endosc. 2015;29(9):2590–7.
Shimizu H, Yamaguchi S, Ishii T, Kondo H, Hara K, Takemoto K, et al. Who needs diverting ileostomy following laparoscopic low anterior resection in rectal cancer patients? Analysis of 417 patients in a single institute. Surg Endosc. 2020;34(2):839–46.
Skrovina M, Soumarova R, Kycina R, Bartos J, Parvez J, Adamcik L, et al. Anastomotic leakage after laparoscopic total mesorectal excision for low rectal cancer. Wideochirurgia I Inne Techniki Maloinwazyjne. 2011;6(1):5–11.
Zanguie M, Abdollahi A, Salek R, Jangjoo A, Jabbari Nooghabi M, Shabahang H, et al. Three anastomotic techniques following laparoscopic rectal cancer resection: our experience in 155 patients. Surg Innov. 2018;25(1):57–61.
Zhou ZG, Wang Z, Yu YY, Shu Y, Cheng Z, Li L, et al. Laparoscopic total mesorectal excision of low rectal cancer with preservation of anal sphincter: a report of 82 cases. World J Gastroenterol. 2003;9(7):1477–81.
Teurneau-Hermansson K, Neufert RS, Buchwald P, Jörgren F. Rectal washout does not increase the complication risk after anterior resection for rectal cancer. World J Surg Oncol. 2021;19(1):82.
Quintane L, Rullier E. Laparoscopic surgery with sphincter preservation for low rectal cancer. Eur Surg Res. 2013;50(2):223.
Shrikhande SV, Marda S, Goel M, Shetty G. Laparoscopic surgery for rectal cancer. Lancet Oncol. 2010;11(10):919–20.
Zhang C, Wei H-T, Hu W, Sun Y, Zhang Q, Abe M, et al. The feasibility of laparoscopic TSME preserving the left colic artery and superior rectal artery for upper rectal cancer. World J Surg Oncol. 2020;18(1):212.
Tang B, Lei X, Ai J, Huang Z, Shi J, Li T. Comparison of robotic and laparoscopic rectal cancer surgery: a meta-analysis of randomized controlled trials. World J Surg Oncol. 2021;19(1):38.
Ding H, Li J, Chen Y, Yang Z, Peng Z, Liao X. Anal function and quality of life analysis after laparoscopic modified Parks for ultra-low rectal cancer patients. World J Surg Oncol. 2020;18(1):28.
Dhamija N, Manish K, Muley K, Agarwal BB. Laparoscopic Colorectal Surgery, proposed stoma site use as specimen extraction- our initial experience. Curr Med Res Pract. 2017;7(2):41–3.
Di Palo S, Tamburini A, Vignali A, Parolini D, Socci C, Orsenigo E, et al. Laparoscopic TME for rectal cancer: prospective study of a tenyearsingle institution experience. Eur J Surg Oncol. 2010;36(10):1025.
Ghirardelli L, Di Palo S, Orsenigo E, Tamburini A, Vignali A, Staudacher C. Laparoscopic TME: 10 years single-center experience. Surg Endosc Intervent Tech. 2014;28:S128.
Zhang H, Ling Y, Cong J, Cui M, Liu D, Chen C. Two-port laparoscopic anterior resection through a self-made glove device versus conventional laparoscopic anterior resection for rectal cancer: a comparison of short-term surgical results. World J Surg Oncol. 2016;14(1):275.
Zeng QM, Lei F, Gao ZY, Wang YZ, Gao QK. Case-matched study of short-term effects of 3D vs 2D laparoscopic radical resection of rectal cancer. World J Surg Oncol. 2017;15(1):178.
Tang X, Wang Z, Wu X, Yang M, Wang D. Robotic versus laparoscopic surgery for rectal cancer in male urogenital function preservation, a meta-analysis. World J Surg Oncol. 2018;16(1):196.
Liu X, Li J-B, Shi G, Guo R, Zhang R. Systematic review of single-incision versus conventional multiport laparoscopic surgery for sigmoid colon and rectal cancer. World J Surg Oncol. 2018;16(1):220.
He J, Yao H-B, Wang C-J, Yang Q-Y, Qiu J-M, Chen J-M, et al. Meta-analysis of laparoscopic anterior resection with natural orifice specimen extraction (NOSE-LAR) versus abdominal incision specimen extraction (AISE-LAR) for sigmoid or rectal tumors. World J Surg Oncol. 2020;18(1):215.
Rubinkiewicz M, Zarzycki P, Czerwińska A, Wysocki M, Gajewska N, Torbicz G, et al. A quest for sphincter-saving surgery in ultralow rectal tumours—a single-centre cohort study. World J Surg Oncol. 2018;16(1):218.
Gessler B, Eriksson O, Angenete E. Diagnosis, treatment, and consequences of anastomotic leakage in colorectal surgery. Int J Colorectal Dis. 2017;32(4):549–56.
Dolberg ME, Wiltz O, Ruiz E, Snow J. Loop ileostomy reversal: laparoscopic approach. Surgical Endosc Intervent Tech. 2018;32(1):S110.
Qi X, Liu M, Xu K, Gao P, Tan F, Yao Z, et al. Risk factors of symptomatic anastomotic leakage and its impacts on a long-term survival after laparoscopic low anterior resection for rectal cancer: a retrospective single-center study. World J Surg Oncol. 2021;19(1):187.
Bruce J, Krukowski ZH, Al-Khairy G, Russell EM, Park KGM. Systematic review of the definition and measurement of anastomotic leak after gastrointestinal surgery. British J Surg. 2001;88(9):1157–68.
Katoh H, Yamashita K, Wang G, Sato T, Nakamura T, Watanabe M. Anastomotic leakage contributes to the risk for systemic recurrence in stage ii colorectal cancer. J Gastrointest Surg. 2011;15(1):120–9.
Mirnezami A, Mirnezami R, Chandrakumaran K, Sasapu K, Sagar P, Finan P. Increased local recurrence and reduced survival from colorectal cancer following anastomotic leak systematic review and meta-analysis. Ann Surg. 2011;253(5):890–9.
Kube R, Mroczkowski P, Granowski D, Benedix F, Sahm M, Schmidt U, et al. Anastomotic leakage after colon cancer surgery: a predictor of significant morbidity and hospital mortality, and diminished tumour-free survival. Ejso. 2010;36(2):120–4.
Law WL, Choi HK, Lee YM, Ho JWC, Seto CL. Anastomotic leakage is associated with poor long-term outcome in patients after curative colorectal resection for malignancy. J Gastrointest Surg. 2007;11(1):8–15.
McArdle CS, McMillan DC, Hole DJ. Impact of anastomotic leakage on long-term survival of patients undergoing curative resection for colorectal cancer. British J Surg. 2005;92(9):1150–4.
Walker KG, Bell SW, Rickard M, Mehanna D, Dent OF, Chapuis PH, et al. Anastomotic leakage is predictive of diminished survival after potentially curative resection for colorectal cancer. Ann Surg. 2004;240(2):255–9.
Desiderio J, Trastulli S, D'Andrea V, Parisi A. Enhanced recovery after surgery for gastric cancer (ERAS-GC): optimizing patient outcome. Transl Gastroenterol Hepatol. 2020;5:11.
Zeng J, Su G. High ligation of the inferior mesenteric artery during sigmoid colon and rectal cancer surgery increases the risk of anastomotic leakage: a meta-analysis. World J Surg Oncol. 2018;16(1):157.
Fukada M, Matsuhashi N, Takahashi T, Imai H, Tanaka Y, Yamaguchi K, et al. Risk and early predictive factors of anastomotic leakage in laparoscopic low anterior resection for rectal cancer. World J Surg Oncol. 2019;17(2):178.
Kang CY, Halabi WJ, Chaudhry OO, Vinh N, Pigazzi A, Carmichael JC, et al. Risk factors for anastomotic leakage after anterior resection for rectal cancer. JAMA Surg. 2013;148(1):65–71.
Matthiessen P, Hallbook O, Andersson M, Rutegard J, Sjodahl R. Risk factors for anastomotic leakage after anterior resection of the rectum. Colorectal Dis. 2004;6(6):462–9.
Hu M-H, Huang R-K, Zhao R-S, Yang K-L, Wang H. Does neoadjuvant therapy increase the incidence of anastomotic leakage after anterior resection for mid and low rectal cancer? A systematic review and meta-analysis. Colorectal Dis. 2017;19(1):16–26.
Acknowledgements
None.
Funding
This study was supported by a grant from the Youth Program of the National Natural Science Foundation of China (#3A4205367429). The funding body only provided the financial means to allow the publication of this study.
Author information
Authors and Affiliations
Contributions
Each author contributed significantly to the concept and development of the present paper. JNL and LXZ designed the research process. YM and HMZ searched the database for corresponding articles. HYH extracted useful information from the articles above. LXZ and YM drafted the meta-analysis. JNL polished this article. The authors read and approved the manuscript and ensured that this was the case.
Corresponding author
Ethics declarations
Ethics approval and consent to participate
This study did not require ethical approval since it was a review of published articles and did not directly involve the use of human or animal subjects.
Consent for publication
Not applicable.
Competing interests
The authors declare that they have no competing interests.
Additional information
Publisher’s Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Supplementary Information
Additional file 1: Appendix 1
. The detailed search strategies.
Rights and permissions
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
About this article
Cite this article
Mu, Y., Zhao, L., He, H. et al. The efficacy of ileostomy after laparoscopic rectal cancer surgery: a meta-analysis. World J Surg Onc 19, 318 (2021). https://doi.org/10.1186/s12957-021-02432-x
Received:
Accepted:
Published:
DOI: https://doi.org/10.1186/s12957-021-02432-x