A phase II, randomized, controlled trial of acupuncture for reduction of Postcolectomy Ileus

Effect evaluation of different preventive measures for ileus after abdominal operation: A systematic review and network meta-analysis

Background

Different approaches to the prevention of postoperative ileus have been evaluated in numerous randomized controlled trials. This network meta-analysis aimed to investigate the relative effectiveness of different interventions in preventing postoperative ileus.

Methods

Randomized controlled trials (RCTS) on the prevention of postoperative ileus were screened from Chinese and foreign medical databases and compared. STATA software was used for network meta-analysis using the frequency method. Random-effects network meta-analysis was also used to compare all schemes directly and indirectly.

Results

A total of 105 randomized controlled trials with 18,840 participants were included in this report. The results of the network meta-analysis showed that intravenous analgesia was most effective in preventing the incidence of postoperative ileus, the surface under the cumulative ranking curve (SUCRA) is 90.5. The most effective intervention for reducing the first postoperative exhaust time was postoperative abdominal mechanical massage (SUCRA: 97.3), and the most effective intervention for reducing the first postoperative defecation time was high-dose opioid antagonists (SUCRA: 84.3). Additionally, the most effective intervention for reducing the time to initiate a normal diet after surgery was accelerated rehabilitation (SUCRA: 85.4). A comprehensive analysis demonstrated the effectiveness and prominence of oral opioid antagonists and electroacupuncture (EA) combined with gum.

Conclusion

This network meta-analysis determined that oral opioid antagonists and EA combined with chewing gum are the most effective treatments and optimal interventions for reducing the incidence of postoperative ileus. However, methods such as abdominal mechanical massage and coffee require further high-quality research.

Quantitative analysis and visualization of literature on acupuncture and related TCM therapies for the treatment of colorectal cancer based on CiteSpace

Objective

We analyzed the literature describing the results of treatment of colorectal cancer (CRC) using acupuncture in the past three decades from the Web of Science (WoS) and Chinese databases (including CNKI, WANGFANG and VIP), and summarized the current development of CRC treatment as well as future research directions through the presentation of maps and visualization analysis.

Methods

We searched the WoS and Chinese databases. Relevant articles were exported, and the data were organized using Excel software and was visualized and analyzed using CiteSpace software.

Results

A total of 355 articles from the WoS and 95 articles from Chinese databases were selected for inclusion in the analysis. The articles in WoS were sourced from 174 journals, 1274 institutions, and 66 countries, and covered 299 keywords. The articles in the Chinese databases were sourced from 43 journals, 111 institutions, and 3 countries, and included 126 keywords. The article with the most citations in the WoS was cited 128 times and in the Chinese databases, the article with the most citations was cited 120 times. Acupuncture, CRC, rectal cancer, apoptosis, warm acupuncture, traditional Chinese medicine (TCM) and gastrointestinal function were mentioned most frequently in the WoS. CRC, electroacupuncture, gastrointestinal function, rectal cancer, acupuncture and moxibustion, acupuncture, and colon cancer were mentioned most frequently in the Chinese databases.

Conclusion

Both the WoS and Chinese databases showed a gradual increase in the number of articles related to acupuncture treatment for CRC, indicating a growing interest in this area. Acupuncture treatments are diverse, including warm acupuncture, auricular acupuncture, acupuncture injection, and electroacupuncture. They are often used in combination with drugs to treat symptoms such as depression, nausea and vomiting, pain, diarrhea, and urinary and fecal incontinence, which are commonly associated with CRC.

Acupuncture for gastrointestinal diseases

Acupuncture, an important component of traditional Chinese medicine, has gained growing attention around the world in the past decades. Both manual and electroacupuncture are commonly used in clinical practice, especially by patients with gastrointestinal disorders seeking symptoms control due to disease signs recurrence and/or lack of effective treatments. Currently, patients with functional gastrointestinal disorders, constipation, gastroesophageal reflux disease, inflammatory bowel disease, ileus, acute pancreatitis, and gastroparesis may benefit from acupuncture treatment, as clinically evident, and the most frequently used acupoints are chosen from the large intestine, stomach, bladder, and spleen meridian. The underlying mechanisms of acupuncture involve the neuromodulation, adjustment of gastrointestinal motility and visceral hypersensitivity, anti-inflammation, repairment of gut microbiota, and intestinal barrier. As methodology advanced, cumulative number of well-designed clinical trials has been established, which might help elevating clinicians and gastroenterologists' awareness and perception toward application of acupuncture for gastrointestinal diseases management.

The effect of acupuncture on recovery after colorectal cancer resection: A systematic review meta-analysis of randomized controlled trials

BACKGROUND

To evaluate the efficacy and safety of acupuncture by systematically reviewing the literature on colorectal cancer resection.

METHODS

Seven electronic databases were searched from inception to February 28, 2023. Randomized controlled trials on acupuncture in patients after CRC resection were included. Two reviewers independently selected relevant trials, extracted data, and assessed the risk of bias. A random-effects meta-analysis model was used to obtain summary effect estimates. The data were pooled and analyzed using RevMan 5.3. The heterogeneity of selected studies was evaluated by evaluating the I-squared (I2) statistics.

RESULTS

Twenty-two studies with 1878 patients were included. Results of the meta-analysis showed there was a low level evidence that acupuncture may improve early postoperative symptoms, such as time to first flatus (n = 876, MD -0.77h, 95% CI -1.22 to -0.33 h, I2 = 89%), time to first bowel movement (n = 671, MD -1.41h, 95% CI -2.20 to -0.63 h, I2 = 95%), time to first defecation (n = 556, MD -1.03h, 95% CI -1.88 to -0.18 h, I2 = 95%), and nausea/vomiting (n = 1488, RR 0.72, 95% CI 0.59-0.89, I2 = 49%) compared with usual care and sham acupuncture. However, there were no statistically significant differences in postoperative pain (n = 1188, MD-0.21, 95% CI -0.59 to 0.17, I2 = 74%). And there was no sufficient evidence of improving long-term functional outcomes. There was substantial heterogeneity across trials. The adverse events associated with acupuncture stimulation were minor in include studies.

CONCLUSION SUBSECTIONS

There is currently low-level evidence supporting the use of acupuncture on postoperative symptoms for patients after colorectal cancer resection. More investigations should be established based on the STRICTA statement strictly.

Electroacupuncture vs Sham Electroacupuncture in the Treatment of Postoperative Ileus After Laparoscopic Surgery for Colorectal Cancer: A Multicenter, Randomized Clinical Trial

Importance

Despite the adoption of the optimized Enhanced Recovery After Surgery (ERAS) protocol, postoperative ileus (POI) severely impairs recovery after colorectal resection and increases the burden on the health care system.

Objective

To assess the efficacy of electroacupuncture (EA) in reducing the duration of POI with the ERAS protocol.

Design, Setting, and Participants

This multicenter, randomized, sham-controlled trial was conducted in China from October 12, 2020, through October 17, 2021. There was a 1:1 allocation using the dynamic block random method, and analyses were by intention to treat. Patients 18 years or older undergoing laparoscopic resection of colorectal cancer for the first time were randomly assigned to treatment group by a central system.

Interventions

Patients were randomly assigned to 4 sessions of EA or sham electroacupuncture (SA) after surgery. All patients were treated within the ERAS protocol.

Main Outcomes and Measures

The primary outcome was the time to first defecation. Secondary outcomes included other patient-reported outcome measures, length of postoperative hospital stay, readmission rate within 30 days, and incidence of postoperative complications and adverse events.

Results

A total of 249 patients were randomly assigned to treatment groups. After the exclusion of 1 patient because of a diagnosis of intestinal tuberculosis, 248 patients (mean [SD] age, 60.2 [11.4] years; 153 men [61.7%]) were included in the analyses. The median (IQR) time to first defecation was 76.4 (67.6-96.8) hours in the EA group and 90.0 (73.6-100.3) hours in the SA group (mean difference, -8.76; 95% CI, -15.80 to -1.73; P = .003). In the EA group compared with the SA group, the time to first flatus (median [IQR], 44.3 [37.0-58.2] hours vs 58.9 [48.2-67.4] hours; P < .001) and the tolerability of semiliquid diet (median [IQR], 105.8 [87.0-120.3] hours vs 116.5 [92.0-137.0] hours; P = .01) and solid food (median [IQR], 181.8 [149.5-211.4] hours vs 190.3 [165.0-228.5] hours; P = .01) were significantly decreased. Prolonged POI occurred in 13 of 125 patients (10%) in the EA group vs 25 of 123 patients (20%) in the SA group (risk ratio [RR], 0.51; 95% CI, 0.27-0.95; P = .03). Other secondary outcomes were not different between groups. There were no severe adverse events.

Conclusions and Relevance

Results of this randomized clinical trial demonstrated that in patients undergoing laparoscopic surgery for colorectal cancer with the ERAS protocol, EA shortened the duration of POI and decreased the risk for prolonged POI compared with SA. EA may be considered as an adjunct to the ERAS protocol to promote gastrointestinal function recovery and prevent prolonged POI after surgery.

Trial Registration

Chinese Clinical Trial Registry Identifier: ChiCTR2000038444.

Clinical efficacy of acupuncture in patients with adhesive intestinal obstruction: A meta-analysis

BACKGROUND

Adhesive intestinal obstruction (AIO) is a common surgical emergency. Surgical exploration has a considerable risk of intestinal injury, and surgical treatment may greatly reduce the quality of life after surgery and cause AIO after re-operation. The nonsurgical treatment is effective for approximately 70% to 90% of patients with adhesive small bowel obstruction (ASBO). However, the high recurrence (30%) and mortality (2%) rates of ASBO are concerning. Moreover, the ideal management method of ASBO remains debatable. Studies have shown that acupuncture can also promote postoperative gastrointestinal function recovery and prevent postoperative complications such as nausea, vomiting, and visceral pain.

AIM

We aimed to evaluate the effectiveness of acupuncture in the treatment of AIO.

METHODS

Randomized controlled trials investigating the effectiveness of acupuncture for adhesive bowel obstruction published until November 2021 were identified by searching 8 comprehensive databases. Data analysis was performed using RevMan v. 5.4 and Stata software v. 16.0. The random-effects model and the fixed-effects model were used to perform the meta-analysis on the experimental group and control group.

RESULTS

Twelve studies with a total of 892 participants were included. The results showed that the experimental group had a significantly higher effective rate (relative risk: 1.20; 95% confidence interval (CI): 1.11-1.28; P < .00001) and a markedly shorter time of the first defecation (mean difference: -11.49, 95% CI: -19.31 to -3.66; P = .004) than the control group. The experimental group also showed a reduction in the duration of abdominal pain, and the reduced length of hospital stay. However, no statistical differences were observed between the 2 groups in terms of the surgery conversion rate.

CONCLUSION

Acupuncture is effective in the treatment of AIO. It can remarkably alleviate some clinical symptoms in patients with AIO.

Effect of acupuncture on postoperative ileus after laparoscopic elective colorectal surgery: A prospective, randomised, controlled trial

BACKGROUND

Postoperative ileus after colorectal surgery is a frequent problem that significantly delays recovery, increases perioperative costs, and negatively impacts on daily life, physical and psychosocial functioning, and wellbeing. We investigated the effect of acupuncture at different single acupoint combined with standard care on postoperative ileus.

METHODS

In this single-centre, three-arm, prospective, randomised trial, we enrolled patients with primary colorectal cancer undergoing elective colorectal resection at Cancer Hospital Chinese Academy of Medical Science in Beijing, China. Patients were randomly assigned (1:1:1) to receive either electroacupuncture (EA) at ST36 or ST25 combined with standard care (two EA groups) once daily from post-operative days 1-4, or standard care alone (standard care group). The co-primary outcomes were time to first flatus and time to defecation assessed in the intention-to-treat population. This study is registered with Chictr.org.cn, ChiCTR1900027466.

FINDING

Between Nov 15, 2019, and Sep 30, 2020, 129 patients were assessed for eligibility, 105 patients (35 patients per group) were enrolled and included in the intention-to-treat analysis. After receiving EA at ST36, the time to first flatus and defecation were shorter (between-group difference -10.98 [97.5% CI -21.41 to -0.56], p = 0·02 for flatus; -25.41 [-47.89 to -2.93], p = 0·02 for defecation). However, we did not observe a significant difference in time to first flatus and defecation between the EA at ST25 group and standard care group (between-group difference -5.54 [97.5% CI -15.78 to 4.70], p = 0·26 for flatus; -17.69 [-40.33 to 4.95], p = 0·08 for defecation). There were no serious adverse events.

INTERPRETATION

Compared with standard care alone, standard care combined with EA at ST36, but not ST25, significantly enhances bowel function recovery in a postoperative setting to patients with colorectal cancer with laparoscopic elective colorectal resection.

FUNDING

The National Key R&D Program of China (No: 2019YFC1712100) and the National Science Fund for Distinguished Young Scholars (No:81825024).

Safety of acupuncture in oncology: A systematic review and meta-analysis of randomized controlled trials

BACKGROUND

Acupuncture is frequently used to treat the side effects of cancer treatment, but the safety of this intervention remains uncertain. The current meta-analysis was conducted to assess the safety of acupuncture in oncological patients.

METHODS

The PubMed, Cochrane Central Register of Controlled Trials, and Scopus databases were searched from their inception to August 7, 2020. Randomized controlled trials in oncological patients comparing invasive acupuncture with sham acupuncture, treatment as usual (TAU), or any other active control were eligible. Two reviewers independently extracted data on study characteristics and adverse events (AEs). Risk of bias was assessed using the Cochrane Risk of Bias Tool.

RESULTS

Of 4590 screened articles, 65 were included in the analyses. The authors observed that acupuncture was not associated an with increased risk of intervention-related AEs, nonserious AEs, serious AEs, or dropout because of AEs compared with sham acupuncture and an active control. Compared with TAU, acupuncture was not associated with an increased risk of intervention-related AEs, serious AEs, or drop out because of AEs but was associated with an increased risk for nonserious AEs (odds ratio, 3.94; 95% confidence interval, 1.16-13.35; P = .03). However, the increased risk of nonserious AEs compared with TAU was not robust against selection bias. The meta-analyses may have been biased because of the insufficient reporting of AEs in the original randomized controlled trials.

CONCLUSIONS

The current review indicates that acupuncture is as safe as sham acupuncture and active controls in oncological patients. The authors recommend researchers heed the CONSORT (Consolidated Standards of Reporting Trials) safety and harm extension for reporting to capture the side effects and better investigate the risk profile of acupuncture in oncology.

LAY SUMMARY

According to this analysis, acupuncture is a safe therapy for the treatment of patients with cancer. Acupuncture seems to be safe compared with sham acupuncture and active controls.

Acupuncture for Quality of Life of Patients with Defecation Dysfunction after Sphincter Preserving Surgery for Rectal Cancer: A Systematic Review

Purpose

To evaluate the effectiveness and safety of acupuncture for quality of life of patients with defecation dysfunction (DD) after sphincter preserving surgery for rectal cancer.

Methods

We searched nine online databases from inception to July 1, 2021, and did not restrict the type of language. Then, studies were independently selected by two research team members with screening criteria and risk bias assessment, and the data were extracted. The primary outcome was Quality of Life Questionnaire-Core 29 (QLQ-CR29). The data were then synthesized using the RevMan V.5.2 by random-effects model. Also, we used the standardized mean differences with 95% credible interval (CI) to describe the outcome of the analysis.

Results

A total of 6 randomized controlled trials (RCTs) (with 439 patients) were included in the systematic review, and data from 2 RCTs (with 200 patients) were used in the meta-analysis. Five studies (83%) were judged to have a medium risk of bias, and one was at high risk of bias. For synthesis, data from two medium-risk studies found that acupuncture or electropuncture may improve the QLQ-CR29 with urination (mean difference, −0.39 points; 95%CI, −0.46 to −0.32; I² = 34%), abdominal pain (mean difference, −0.71 points; 95%CI, −0.89 to −0.54; I² = 9%), stool (mean difference, −0.49 points; 95%CI, −0.77 to −0.20; I² = 57%), defecation (mean difference, −0.59 points; 95% CI, −0.85 to −0.33; I² = 51%), sexual function (mean difference, 0.93 points; 95% CI, 0.48 to 1.38; I² = 90%), and self-feelings (mean difference, 1.04 points; 95% CI, 0.36 to 1.73; I² = 94%).

Conclusion

Findings in this study indicate that acupuncture or electropuncture may be effective and safe for DD, but the quality of included studies was very low. So, more large-scale, multicenter, long-term, and high-quality original research is still expected in the future.

Electroacupuncture for postoperative ileus after laparoscopic surgery on colorectal cancer: study protocol for a randomized controlled trial

Background

Postoperative ileus (POI) occurs in almost all patients after abdominal laparoscopic surgery, resulting in complications and increasing the length of hospitalization. Electroacupuncture has been used as an alternative therapy for gastrointestinal dysfunction, but its efficacy for POI is inconclusive. The study is designed to determine whether electroacupuncture can accelerate recovery from POI.

Methods/design

This study is a three-arm, randomized controlled trial. A total of 105 patients will be randomized into a group receiving electroacupuncture at Tianshu (ST25), a group receiving electroacupuncture at Zusanli (ST36), or a control group in a 1:1:1 ratio. Patients in the electroacupuncture groups will receive electroacupuncture treatment for 4 days from the first day after surgery. The primary outcome consists of the time to first flatus and the time to first defecation. Secondary outcomes include the time to first tolerance of liquid and semiliquid food; the length of the hospital stay; postoperative pain, nausea, and vomiting; abdominal distension; the time to first get out of bed; and postoperative complications. The outcomes will be assessed by the patients themselves every day during hospitalization. Surgeons, nurses, assessors, and statisticians will be blinded to the group assignments. Patients in the two electroacupuncture groups, but not in the control group, will be blinded to the group assignments. The acupuncturists will not be blinded.

Discussion

The aim of this trial is to provide a nonpharmacological therapy for POI and may provide evidence of the effect of electroacupuncture at ST25 or ST36 on POI.

Trial registration

Chinese Clinical Trial Registry ChiCTR1900027466. Registered on 14 November 2019.

Supplementary Information

The online version contains supplementary material available at 10.1186/s13063-021-05564-3.

Postoperative Ileus and Postoperative Gastrointestinal Tract Dysfunction: Pathogenic Mechanisms and Novel Treatment Strategies Beyond Colorectal Enhanced Recovery After Surgery Protocols

Postoperative ileus (POI) and postoperative gastrointestinal tract dysfunction (POGD) are well-known complications affecting patients undergoing intestinal surgery. GI symptoms include nausea, vomiting, pain, abdominal distention, bloating, and constipation. These iatrogenic disorders are associated with extended hospitalizations, increased morbidity, and health care costs into the billions and current therapeutic strategies are limited. This is a narrative review focused on recent concepts in the pathogenesis of POI and POGD, pipeline drugs or approaches to treatment. Mechanisms, cellular targets and pathways implicated in the pathogenesis include gut surgical manipulation and surgical trauma, neuroinflammation, reactive enteric glia, macrophages, mast cells, monocytes, neutrophils and ICC's. The precise interactions between immune, inflammatory, neural and glial cells are not well understood. Reactive enteric glial cells are an emerging therapeutic target that is under intense investigation for enteric neuropathies, GI dysmotility and POI. Our review emphasizes current therapeutic strategies, starting with the implementation of colorectal enhanced recovery after surgery protocols to protect against POI and POGD. However, despite colorectal enhanced recovery after surgery, it remains a significant medical problem and burden on the healthcare system. Over 100 pipeline drugs or treatments are listed in Clin.Trials.gov. These include 5HT4R agonists (Prucalopride and TAK 954), vagus nerve stimulation of the ENS-macrophage nAChR cholinergic pathway, acupuncture, herbal medications, peripheral acting opioid antagonists (Alvimopen, Methlnaltexone, Naldemedine), anti-bloating/flatulence drugs (Simethiocone), a ghreline prokinetic agonist (Ulimovelin), drinking coffee, and nicotine chewing gum. A better understanding of the pathogenic mechanisms for short and long-term outcomes is necessary before we can develop better prophylactic and treatment strategies.

Pretreatment with transcutaneous electrical acupoint stimulation to prevent postoperative ileus in patients undergoing laparoscopic colon surgery: study protocol for a randomised controlled trial

INTRODUCTION

Postoperative ileus (POI), a common complication after surgery, severely affects postoperative recovery. It is unclear whether pretreatment with transcutaneous electrical acupoint stimulation (TEAS) can improve recovery from POI. This trial will evaluate the effects of pretreatment with TEAS on POI.

METHODS AND ANALYSIS

This will be a prospective, randomised controlled trial. American Society of Anesthesiologists (ASA) physical status classification I-III level patients, aged 18-75 years and scheduled for laparoscopic colon surgery, will be included in the study. It is planned that 146 subjects will be randomised to the TEAS and sham TEAS (STEAS) groups. The groups will undergo two sessions of TEAS/STEAS daily for 3 days before surgery, with a final TEAS/STEAS treatment 30 min before anaesthesia. The primary endpoint of the study will be time to first defaecation. Secondary endpoints will include time to first flatus, time to tolerance of oral diet, GI-2 (composite outcome of time to first defaecation and time to tolerance of oral diet), time to independent walking, length of hospital stay, postoperative pain Visual Analogue Scale score on the first 3 days after surgery, analgesic requirements, complications and plasma concentrations of interferon-β (IFN-β), IFN-γ, interleukin-6 (IL-6) and IL-1β. Multiple linear regression will be used to identify independent predictors of outcome measures.

ETHICS AND DISSEMINATION

This study has been approved by the Chinese Registered Clinical Trial Ethics Review Committee (No. ChiECRCT-20170084). The results of the trial will be published in an international peer-reviewed journal.

TRIAL REGISTRATION NUMBER

This study has been registered with the Chinese Clinical Trial Registry (No. ChiCTR-INR-17013184).

TRIAL STATUS

The study was in the recruitment phase at the time of manuscript submission.

Effectiveness and safety of acupuncture and moxibustion for defecation dysfunction after sphincter-preserving surgery for rectal cancer: protocol for systematic review and meta-analysis

INTRODUCTION

Defecation dysfunction (DD) is one of the most common complications following sphincter-preserving surgery for rectal cancer. And there is no effective treatment of DD after sphincter-preserving surgery for rectal cancer. Although some studies suggested that acupuncture and moxibustion (AM) is effective and safe for DD after sphincter-preserving surgery for rectal cancer, lacking strong evidence, for instance, the relevant systematic review, meta-analysis and randomised controlled trial (RCT) of a large, multicentre sample, makes the effects and safety remain uncertain. The present protocol is described for a systematic review and meta-analysis to investigate the effectiveness and safety of AM for DD after sphincter-preserving surgery for rectal cancer.

METHODS AND ANALYSIS

We will search nine online databases from inception to 1 October 2019; the language of included trials will not be restricted. This study will include RCTs that performed AM as the main method of the experimental group for patients with DD after sphincter-preserving surgery for rectal cancer. Two of the researchers will independently select the studies, conduct risk of bias assessment and extract the data. We will use the fixed-effects model or random-effects model of RevMan V.5.2 software to analyse data synthesis. The risk ratios with 95% CIs and weighted mean differences or standardised mean differences with 95% CIs will be used to present the data synthesis outcome of dichotomous data respectively and the continuous data. Evidence quality of outcome will be assessed by using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) system.

ETHICS AND DISSEMINATION

Ethical approval is not required in this secondary research evidence, and we will publish the results of this study in a journal or concerned conferences.

TRIAL REGISTRATION NUMBER

CRD42019140097.

Perioperative acupuncture medicine: a novel concept instead of acupuncture anesthesia

Objective:

To confirm that acupuncture applied to patients would improve the clinical curative effect and accelerate the patient's recovery by introducing the application of acupuncture in pre-operation, during operation, and post-operation.

Data sources:

Literature cited in this review was retrieved from PubMed, Web of Science, and China National Knowledge Infrastructure (CNKI) and was primarily published in English or Chinese from 2010 to 2018, with keywords of “acupuncture,” “electroacupuncture,” “perioperative period,” “sedation,” “analgesia,” and “recovery.” Relevant citations in the retrieved articles were also screened to include more data.

Study selection:

All retrieved literature was scrutinized, most typical articles related on perioperative acupuncture application in clinical study were reviewed.

Results:

Acupuncture could relieve anxiety and stress during the preoperative stage. It reduces the usage of narcotics and stress response, and maintains the respiratory stability and homeostasis during surgery. It also exerts a protective effect on vital organs, and during the postoperative stages, enhances the recovery while effectively alleviating the postoperative pain. This phenomenon prevents common postoperative discomforts such as nausea and vomiting. In addition, it might improve the patients’ long-term prognosis.

Conclusions:

The novel concept “perioperative acupuncture medicine” is to focus on the optimal treatment in the perioperative period of surgical patients. The review reveals the important role of acupuncture in enhancing rapid recovery of patients during the perioperative period.

Electrical Stimulation and Recovery of Gastrointestinal Function Following Surgery: A Systematic Review

OBJECTIVES

Postoperative ileus occurs in approximately 5-15% of patients following major abdominal surgery, and poses a substantial clinical and economic burden. Electrical stimulation has been proposed as a means to aid postoperative gastrointestinal (GI) recovery, but no methods have entered routine clinical practice. A systematic review was undertaken to assess electrical stimulation techniques and to evaluate their clinical efficacy in order to identify promising areas for future research.

MATERIALS AND METHODS

Literature was searched using MEDLINE, EMBASE, Google Scholar and by assessing relevant clinical trial databases. Studies investigating the use of electrical stimulation for postoperative GI recovery were included, regardless of methods used or outcomes measured. A critical review was constructed encompassing all included studies and evaluating and synthesizing stimulation techniques, protocols, and clinical outcomes.

RESULTS

A broad range of neuromodulation strategies and protocols were identified and assessed. Improved postoperative GI recovery following electrical stimulation was reported by 55% of studies (10/18), most commonly those assessing transcutaneous electrical nerve stimulation and electroacupuncture therapy (7/10). Several studies reported shorter time to first flatus and stool, shorter duration of hospital stay, and reduced postoperative pain. However, inconsistent reporting and limitations in trial design were common, compromising a definitive determination of electrical stimulation efficacy.

CONCLUSIONS

Electrical stimulation appears to be a promising methodology to aid postoperative GI recovery, but greater attention to mechanisms of action and clinical trial quality is necessary for progress. Future research should also aim to apply validated and standardized gut recovery outcomes and consistent neuromodulation methodologies.

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

Delays in recovery of intestinal function following abdominal surgery are associated with longer hospital stays, increased postoperative complications, and higher costs to the health care system. Studies of acupuncture for postoperative ileus and other postoperative issues have reported improvements. This systematic review and meta-analysis aimed to assess whether acupuncture assisted recovery following surgery for colorectal cancer (CRC). Randomized controlled trials (RCTs) were identified from major English and Chinese language biomedical databases. Participants (aged 18 years plus) had received surgical resection for CRC. 22 studies (1,628 participants) were included. Five were sham-controlled. Outcomes included gastrointestinal function recovery (21 studies), recovery of urinary function (1 study), postoperative abdominal distension (3 studies), and quality of life (1 study). Meta-analyses found significant reductions in time to first bowel sounds, first flatus, and first defecation in both the sham-controlled and nonblinded studies. These results suggested that the addition of acupuncture following CRC surgery improved recovery of gastrointestinal function based on four blinded good quality RCTs (281 participants) and 17 nonblinded lower quality RCTs (1,265 participants). The best available evidence was for interventions that included electroacupuncture at the point ST36 Zusanli and there is supporting evidence for other types of acupuncture therapies that involve stimulation of this point. This review is registered with the following: systematic review registration in PROSPERO: CRD42017079590.

Postoperative ileus following major colorectal surgery

BACKGROUND

Postoperative ileus (POI) is characterized by delayed gastrointestinal recovery following surgery. Current knowledge of pathophysiology, clinical interventions and methodological challenges was reviewed to inform modern practice and future research.

METHODS

A systematic search of MEDLINE and Embase databases was performed using search terms related to ileus and colorectal surgery. All RCTs involving an intervention to prevent or reduce POI published between 1990 and 2016 were identified. Grey literature, non-full-text manuscripts, and reanalyses of previous RCTs were excluded. Eligible articles were assessed using the Cochrane tool for assessing risk of bias.

RESULTS

Of 5614 studies screened, 86 eligible articles describing 88 RCTs were identified. Current knowledge of pathophysiology acknowledges neurogenic, inflammatory and pharmacological mechanisms, but much of the evidence arises from animal studies. The most common interventions tested were chewing gum (11 trials) and early enteral feeding (11), which are safe but of unclear benefit for actively reducing POI. Others, including thoracic epidural analgesia (8), systemic lidocaine (8) and peripheral μ antagonists (5), show benefit but require further investigation for safety and cost-effectiveness.

CONCLUSION

POI is a common condition with no established definition, aetiology or treatment. According to current literature, minimally invasive surgery, protocol-driven recovery (including early feeding and opioid avoidance strategies) and measures to avoid major inflammatory events (such as anastomotic leak) offer the best chances of reducing POI.

Zusanli (ST36) Acupoint Injection with Neostigmine for Paralytic Postoperative Ileus following Radical Gastrectomy for Gastric Cancer: a Randomized Clinical Trial

Background: The Zusanli (ST36) acupoint has been associated with treatment of various gastrointestinal conditions. There have been no studies of acupuncture therapy for paralytic postoperative ileus (PPOI). Materials and methods: Patients with PPOI following gastrectomy for gastric cancer were randomized to receive ST36 acupoint injection with neostigmine, gluteal intramuscular injection with 1.0 mg neostigmine, ST36 acupuncture alone, or standard therapy. The main outcome was the effectiveness rate for recovery of peristalsis. Secondary outcomes were time to bowel sound recovery, time to first flatus, and time to first defecation. Tertiary outcomes were drug-related adverse events, including abdominal pain, diarrhea, nausea, vomiting, tearing, delirium, seizure, and anxiety. Results: ST36 acupoint injection with neostigmine and gluteal intramuscular injection of neostigmine gave a higher rate of peristalsis recovery, and the ST36 acupoint injection group showed significantly higher total effectiveness rate than that of the intramuscular injection group. These interventions gave significantly shorter times to bowel sound recovery, shorter times to first flatus and first defecation compared with ST36 acupuncture and standard post-operative therapy (P < 0.01). ST36 acupoint injection group gave shorter time to bowel sound recovery, shorter time to first flatus and first defecation than those of the intramuscular injection group (P < 0.01). Drug-related adverse events in the intramuscular injection group were more serious than in the ST36 acupoint injection group (P < 0.05). Conclusion: ST36 acupoint injection with neostigmine is safe and effective for treatment of PPOI.

Effectiveness of Acupuncture for Early Recovery of Bowel Function in Cancer: A Systematic Review and Meta-Analysis

Objectives

The aim of this study was to evaluate the effects of acupuncture therapy to reduce the duration of postoperative ileus (POI) and to enhance bowel function in cancer patients.

Methods

A systematic search of electronic databases for studies published from inception until January 2017 was carried out from six databases. Randomized controlled trials (RCTs) involving the use of acupuncture and acupressure for POI and bowel function in cancer patients were identified. Outcomes were extracted from each study and pooled to determine the risk ratio and standardized mean difference.

Results

10 RCTs involving 776 cancer patients were included. Compared with control groups (no acupuncture, sham acupuncture, and other active therapies), acupuncture was associated with shorter time to first flatus and time to first defecation. A subgroup analysis revealed that manual acupuncture was more effective on the time to first flatus and the time to first defecation; electroacupuncture was better in reducing the length of hospital stay. Compared with control groups (sham or no acupressure), acupressure was associated with shorter time to first flatus. However, GRADE approach indicated a low quality of evidence.

Conclusions

Acupuncture and acupressure showed large effect size with significantly poor or inferior quality of included trials for enhancing bowel function in cancer patients after surgery. Further well-powered evidence is needed.

Effect of Acupuncture on Postoperative Ileus after Distal Gastrectomy for Gastric Cancer

Purpose

Acupuncture has recently been accepted as a treatment option for managing postoperative ileus (POI) and various functional gastrointestinal disorders. Therefore, we conducted a prospective randomized study to evaluate the effect of acupuncture on POI and other surgical outcomes in patients who underwent gastric surgery.

Materials and Methods

Thirty-six patients who underwent distal gastrectomy for gastric cancer from March to December 2015 were randomly assigned to acupuncture or non-acupuncture (NA) groups at 1:1 ratio. The acupuncture treatment was administered treatment once daily for 5 consecutive days starting at postoperative day 1. The primary outcome measure was the number of remnant sitz markers in the small intestine on abdominal radiograph. The secondary outcome measure was the surgical outcome, including the times to first flatus, first defecation, start of water intake, and start of soft diet, as well as length of hospital stay and laboratory findings.

Results

The acupuncture group had significantly fewer remnant sitz markers in the small intestine on postoperative days 3 and 5 compared to those in the NA group. A significant difference was observed in the numbers of remnant sitz markers in the small intestine with respect to group differences by time (P<0.0001). The acupuncture group showed relatively better surgical outcomes than those in the NA group, but the differences were not statistically significant.

Conclusions

In this clinical trial, acupuncture promoted the passage of sitz markers, which may reflect the possibility of reducing POI after distal gastrectomy.

Effect of Acupuncture on Reducing Duration of Postoperative Ileus After Gastrectomy in Patients with Gastric Cancer: A Pilot Study Using Sitz Marker

OBJECTIVES

Postoperative ileus (POI) is a common problem after abdominal surgery. Acupuncture is being accepted as an option for reducing POI and managing various functional gastrointestinal disorders. Therefore, this pilot study was conducted to evaluate the effect of acupuncture on reducing duration of POI and other surgical outcomes in patients who underwent gastric surgery.

DESIGN

A prospective, randomized, controlled pilot study was conducted on patients who underwent gastric cancer surgery from January 2013 to December 2013. Ten patients were randomly assigned into the acupuncture (A) or nonacupuncture (NA) groups at a 1:1 ratio.

INTERVENTIONS

The acupuncture treatment was performed by Korean traditional medicine doctors (KMDs). The style of acupuncture was Korean. In the A group, acupuncture treatment was given once daily for 5 consecutive days starting on postoperative day 1. Each patient received acupuncture at 16 acupoints based on expert consensus provided by qualified and experienced KMDs. No acupuncture treatment was performed in the NA group.

OUTCOME MEASURES

The primary outcome measure was the number of remnant Sitz markers in the small intestine on abdominal radiography. Secondary outcome measures were time to first flatus, start of sips water, start of soft diet, hospital stay, and laboratory findings.

RESULTS

The A group had significantly fewer remnant Sitz markers in the small intestine on postoperative days 3 and 5 compared with those in the NA group (p = 0.025 and 0.005). A significant difference was observed in the numbers of remnant Sitz marker in the small intestine with respect to time difference by group (p = 0.019). The A group showed relatively better surgical outcomes, but without statistical significance.

CONCLUSIONS

Although further studies are warranted, acupuncture may reduce duration of POI after gastric surgery and could be a potential factor in enhanced recovery after surgery protocols.

Effects of Acupuncture, Tuina, Tai Chi, Qigong, and Traditional Chinese Medicine Five-Element Music Therapy on Symptom Management and Quality of Life for Cancer Patients: A Meta-Analysis

CONTEXT

Most cancer patients suffer from both the disease itself and symptoms induced by conventional treatment. Available literature on the clinical effects on cancer patients of acupuncture, Tuina, Tai Chi, Qigong, and Traditional Chinese Medicine Five-Element Music Therapy (TCM-FEMT) reports controversial results.

OBJECTIVES

The primary objective of this meta-analysis was to evaluate the effect of acupuncture, Tuina, Tai Chi, Qigong, and TCM-FEMT on various symptoms and quality of life (QOL) in patients with cancer; risk of bias for the selected trials also was assessed.

METHODS

Studies were identified by searching electronic databases (MEDLINE via both PubMed and Ovid, Cochrane Central, China National Knowledge Infrastructure, Chinese Scientific Journal Database, China Biology Medicine, and Wanfang Database). All randomized controlled trials (RCTs) using acupuncture, Tuina, Tai Chi, Qigong, or TCM-FEMT published before October 2, 2014, were selected, regardless of whether the article was published in Chinese or English.

RESULTS

We identified 67 RCTs (5465 patients) that met our inclusion criteria to perform this meta-analysis. Analysis results showed that a significant combined effect was observed for QOL change in patients with terminal cancer in favor of acupuncture and Tuina (Cohen's d: 0.21-4.55, P < 0.05), whereas Tai Chi and Qigong had no effect on QOL of breast cancer survivors (P > 0.05). The meta-analysis also demonstrated that acupuncture produced small-to-large effects on adverse symptoms including pain, fatigue, sleep disturbance, and some gastrointestinal discomfort; however, no significant effect was found on the frequency of hot flashes (Cohen's d = -0.02; 95% CI = -1.49 to 1.45; P = 0.97; I(2) = 36%) and mood distress (P > 0.05). Tuina relieved gastrointestinal discomfort. TCM-FEMT lowered depression level. Tai Chi improved vital capacity of breast cancer patients. High risk of bias was present in 74.63% of the selected RCTs. Major sources of risk of bias were lack of blinding, allocation concealment, and incomplete outcome data.

CONCLUSION

Taken together, although there are some clear limitations regarding the body of research reviewed in this study, a tentative conclusion can be reached that acupuncture, Tuina, Tai Chi, Qigong, or TCM-FEMT represent beneficial adjunctive therapies. Future study reporting in this field should be improved regarding both method and content of interventions and research methods.

Acupuncture for recovery after surgery in patients undergoing colorectal cancer resection: a systematic review and meta-analysis

OBJECTIVE

To assess the efficacy/effectiveness and safety of acupuncture in patients recovering from colorectal cancer resection.

METHODS

We systematically searched four English language databases (Medline, Embase, CENTRAL (Cochrane Central Register of Controlled Trials), and AMED (Allied and Complementary Medicine Database)) and one Chinese database (CAJ, China Academic Journals). Randomised trials of acupuncture compared with usual/routine care, sham interventions or active comparators in patients undergoing colorectal cancer resection were eligible for inclusion. Postoperative symptoms and quality of life (QoL) were the primary outcomes for the review.

RESULTS

Of 1225 screened hits, seven randomised trials with 540 participants were included. High or uncertain risk of bias and significant heterogeneity were observed. All outcomes were measured before discharge, and no trial explicitly reported post-discharge outcomes. The response to acupuncture in terms of postoperative symptoms was inconsistent across trials. QoL was not measured in the included studies. For certain outcomes reflecting physiological recovery, favourable effects of acupuncture were observed compared with sham acupuncture, namely time to first flatus (n=207, three studies; mean difference (MD) -7.48 h, 95% CI -14.58 to -0.39 h, I(2)=0%) and time to first defaecation (n=149, two studies; MD -18.04 h, 95% CI -31.90 to -4.19 h, I(2)=0%). Two studies reported there were no acupuncture-related adverse events, whereas the remaining studies did not consider adverse events.

CONCLUSIONS

We found low-to moderate-quality evidence for the efficacy and safety of acupuncture for recovery after surgery in colorectal cancer patients. Future trials with adequate allocation concealment, blinding of outcome assessors, and measurement of post-discharge outcomes including QoL or functional recovery are warranted.

TRIAL REGISTRATION NUMBER

CRD42014015537.

Interventions That Affect Gastrointestinal Motility in Hospitalized Adult Patients: A Systematic Review and Meta-Analysis of Double-Blind Placebo-Controlled Randomized Trials

Gastrointestinal (GI) dysmotility is a common complication in acute, critically ill, postoperative, and chronic patients that may lead to impaired nutrient delivery, poor clinical, and patient-reported outcomes. Several pharmacological and nonpharmacological interventions to treat GI dysmotility were investigated in dozens of clinical studies. However, they often yielded conflicting results, at least in part, because various (nonstandardized) definitions of GI dysmotility were used and methodological quality of studies was poor. While a universally accepted definition of GI dysmotility is yet to be developed, a systematic analysis of data derived from double-blind placebo-controlled randomized trials may provide robust data on absolute and relative effectiveness of various interventions as the study outcome (GI motility) was assessed in the least biased manner.To systematically review data from double-blind placebo-controlled randomized trials to determine and compare the effectiveness of interventions that affect GI motility.Three electronic databases (MEDLINE, SCOPUS, and EMBASE) were searched. A random effects model was used for meta-analysis. The summary estimates were reported as mean difference (MD) with the corresponding 95% confidence interval (CI).A total of 38 double-blind placebo-controlled randomized trials involving 2371 patients were eligible for inclusion in the systematic review. These studies investigated a total of 20 different interventions, of which 6 interventions were meta-analyzed. Of them, the use of dopamine receptor antagonists (MD, -8.99; 95% CI, -17.72 to -0.27; P = 0.04) and macrolides (MD, -26.04; 95% CI, -51.25 to -0.82; P = 0.04) significantly improved GI motility compared with the placebo group. The use of botulism toxin significantly impaired GI motility compared with the placebo group (MD, 5.31; 95% CI, -0.04 to 10.67; P = 0.05). Other interventions (dietary factors, probiotics, hormones) did not affect GI motility.Based on the best available data and taking into account the safety profile of each class of intervention, dopamine receptor antagonists and macrolides significantly improve GI motility and are medications of choice in treating GI dysmotility.

Incidence of prolonged postoperative ileus after colorectal surgery: a systematic review and meta-analysis

AIM

Prolonged postoperative ileus (PPOI) after colorectal surgery remains a leading cause of delayed postoperative recovery and prolonged hospital stay. Its exact incidence is unknown. The aim of this systematic review is to investigate the definitions and incidence of PPOI previously described.

METHOD

MEDLINE, Embase and the Cochrane Database of Systematic Reviews (up to July 2014) were searched. Two authors independently reviewed citations using predefined inclusion and exclusion criteria.

RESULTS

The search strategy yielded 3233 citations; 54 were eligible, comprising 18 983 patients. Twenty-six studies were prospective [17 of these being randomized controlled trials (RCTs)] and 28 were retrospective. Meta-analysis revealed an incidence of PPOI of 10.3% (95% CI 8.4-12.5) and 10.2% (95% CI 5.6-17.8) for non-RCTs and RCTs, respectively. Significant heterogeneity was observed for both non-RCTs and for RCTs. The used definition of PPOI, the type of surgery and access (laparoscopic, open) and the duration of surgery lead to significant variability of reported PPOI incidence between studies. The incidence of PPOI is lower after laparoscopic colonic resection.

CONCLUSION

There is a large variation in the reported incidence of PPOI. A uniform definition of PPOI is needed to allow meaningful inter-study comparisons and to evaluate strategies to prevent PPOI.

Electroacupuncture for postoperative pain and gastrointestinal motility after laparoscopic appendectomy (AcuLap): study protocol for a randomized controlled trial

Background

Acupuncture is a widely serviced complementary medicine. Although acupuncture is suggested for managing postoperative ileus and pain, supporting evidence is weak. The AcuLap trial is designed to provide high-level evidence regarding whether or not electroacupuncture is effective in promoting gastrointestinal motility and controlling pain after laparoscopic surgery.

Methods/design

This study is a prospective randomized controlled trial with a three-arm, parallel-group structure evaluating the efficacy of electroacupuncture for gastrointestinal motility and postoperative pain after laparoscopic appendectomy. Patients with appendicitis undergoing laparoscopic surgery are included and randomized into three groups: 1) electroacupuncture group, 2) sham acupuncture group, and 3) control group. Patients receive 1) acupuncture with electrostimulation or 2) fake electroacupuncture with sham device twice a day or 3) no acupuncture after laparoscopic appendectomy. The primary outcome is time to first passing flatus after operation. Secondary outcomes include postoperative pain, analgesics, nausea/vomiting, bowel motility, time to tolerable diet, complications, hospital stay, readmission rates, time to recovery, quality of life, medical costs, and protocol failure rate. Patients and hospital staff (physicians and nurses) are blinded to which group the patient is assigned, electroacupuncture or sham acupuncture. Data analysis personnel are blinded to group assignment among all three groups. Estimated sample size to detect a minimum difference of time to first flatus with 80 % power, 5 % significance, and 10 % drop rate is 29 × 3 groups = 87 patients. Analysis will be performed according to the intention-to-treat principle.

Discussion

The AcuLap trial will provide evidence on the merits and/or demerits of electroacupuncture for bowel motility recovery and pain relief after laparoscopic appendectomy.

Trial registration

The trial was registered in Clinical Research Information Service (CRiS), Republic of Korea (KCT0001486) on 14 May 2015.

Acupuncture Research at Memorial Sloan Kettering Cancer Center

Acupuncture may help treat specific cancer-related symptoms. Here, we summarize our clinical trials that sought to determine acupuncture's role in managing cancer-related symptoms. Trials have been conducted to determine acupuncture's ability to mitigate cancer-related symptoms including dyspnea, fatigue, xerostomia, lymphedema, hot flashes, postoperative ileus, pain and dysfunction after neck dissection, and postthoracotomy pain. Published studies indicate that acupuncture versus placebo acupuncture failed to reduce cancer-related dyspnea. Both true and sham acupuncture alleviated fatigue slightly, but no significant differences between groups emerged. Compared with sham acupuncture, our research showed that acupuncture significantly improved saliva production in patients with xerostomia and significantly reduced lymphedema patients' arm circumference in a pilot study. However, acupuncture failed to significantly reduce hot flashes and was no more successful than sham acupuncture in reducing postoperative ileus. Significant reductions in pain and dysfunction occurred in cancer patients after neck dissection. In a feasibility study, acupuncture was found to be acceptable to lung cancer patients and did not interfere with standard postoperative care. In summary, acupuncture is a potential candidate for the treatment of some important cancer-related symptoms. Large clinical trials and research to investigate mechanistic pathways are warranted.

Psychiatric benefits of integrative therapies in patients with cancer

Integrative oncology uses non-pharmacological adjuncts to mainstream care to manage physical, emotional, and psychological symptoms experienced by cancer survivors. Depression, anxiety, fatigue and pain are among the common, often burdensome symptoms that can occur in clusters, deplete patient morale, interfere with treatment plans, and hamper recovery. Patients already seek various modalities on their own to address a broad range of problems. Legitimate complementary therapies offered at major cancer institutions improve quality of life, speed recovery, and optimize patient support. They also augment the benefits of psychiatric interventions, due to their ability to increase self-awareness and improve physical and psychological conditioning. Further, these integrated therapies provide lifelong tools and develop skills that patients use well after treatment to develop self-care regimens. The active referral of patients to integrative therapies achieves three important objectives: complementary care is received from therapists experienced in working with cancer patients, visits become part of the medical record, allowing treatment teams to guide individuals in maximizing benefit, and patients are diverted from useless or harmful 'alternatives.' We review the reciprocal physical and psychiatric benefits of exercise, mind-body practices, massage, acupuncture, and music therapy for cancer survivors, and suggest how their use can augment mainstream psychiatric interventions.

Effect and mechanism of acupuncture on gastrointestinal diseases

Acupuncture modulates various biomechanical responses, such as prokinetic, antiemetic, and antinociceptive effects. Acupuncture treatment involves the insertion of thin needles into the skin and underlying muscle and the needles are stimulated manually or electrically. Thus, acupuncture stimulates the somatic afferent nerves of the skin and muscles. The somatic sensory information from the body is carried to the cortex area of the brain. Somatic sensory fibers also project to the various nuclei, including the brain stem, periaqueductal gray (PAG), and paraventricular nucleus (PVN) of the hypothalamus. Somatosensory pathways stimulated by acupuncture activate these nuclei. Activation of the brain stem modulates the imbalance between sympathetic activity and parasympathetic activity. Opioid released from the PAG is involved in mediating antiemetic and antinociceptive effects of acupuncture. Oxytocin release from the PVN mediates antistress and antinociceptive effects of acupuncture. Acupuncture may be effective in patients with functional gastrointestinal (GI) disorders because of its effects on GI motility and visceral pain. It is expected that acupuncture is used in the treatment of patients with functional GI disorders.