Therapeutic Efficacy of Conservative Treatment Combined with Water-soluble Contrast Agents for Adhesive Small Bowel Obstruction ：A Meta-analysis / 中国药房

OBJECTIVE： To systematically evaluate th e ther apeutic effects of conservative treatment combined with water-soluble contrast agents for adhesive small bowel obstruction ，and to provide evidence-based reference for clinical medication. METHODS：Retrieved from Cochrane library ，PubMed，Embase，Wanfang database and CNKI during the inception to Sept. 2020，RCTs about conservative treatment combined with water-soluble contrast agents in the therapeutic efficacy for adhesive small bowel obstruction were collected. After literature screening and data extraction ，the quality of included literatures were evaluated with Cochrane system evaluator manual 5.1.0 and Jadad scale. Meta-analysis was conducted by using Rev Man 5.3 and Stata 16 software. RESULTS ：A total of 15 RCTs were included ，with 1 429 patients in total. Results of Meta-analysis showed that the use of water-soluble contrast agents significantly reduced the surgical needs of patients with adhesive small bowel obstruction [OR ＝ 0.64，95％CI（0.50，0.81），P＜0.001]；reduced the remission time of non-surgical patients [MD ＝－23.37， 95％CI（－32.17， －14.57），P＜0.001]，hospital stay days of non-surgical patients [MD ＝－2.21，95％CI（－2.52，－1.90），P＜0.001] and hospital stay days of all patients [MD ＝－2.43，95％CI（－3.93，－0.92），P＝0.002]，and would not increase the incidence of complications [OR ＝1.15，95％CI（0.63，2.10），P＝0.65]，but could not reduce mortality [OR ＝1.26，95％CI（0.94，3.24），P＝ 0.63] or the probability of bowel resection [OR ＝0.93，95％CI（0.57，1.52），P＝0.78]. CONCLUSIONS ：The combined use of water-soluble contrast agents for patients with adhesive small bowel obstruction is safe and effective ，can reduce the patient ’s surgical requirements ，and is beneficial to reduce the length of hospital stay and time for symptom relief.

Berberine prevents primary peritoneal adhesion and adhesion reformation by directly inhibiting TIMP-1

Peritoneal adhesions are fibrous tissues that tether organs to one another or to the peritoneal wall and represent the major cause of postsurgical morbidity. Enterolysis at repeat surgeries induces adhesion reformation that is more difficult to prevent than primary adhesion. Here we studied the preventive effects of different approaches of berberine treatment for primary adhesion, and its effects on adhesion reformation compared to Interceed. We found the primary adhesion was remarkably prevented by berberine through intraperitoneal injection 30 min before abrasive surgery (pre-berberine) or direct addition into injured cecum immediately after the surgery (inter-berberine). Rats with adhesion reformation had a more deteriorative collagen accumulation and tissue injury in abrasive sites than rats with primary adhesion. The dysregulated TIMP-1/MMP balance was observed in patients after surgery, as well as adhesion tissues from primary adhesion or adhesion reformation rats. Inter-berberine treatment had a better effect for adhesion reformation prevention than Interceed. Berberine promoted the activation of MMP-3 and MMP-8 by directly blocking TIMP-1 activation core, which was reversed by TIMP-1 overexpression in fibroblasts. In conclusion, this study suggests berberine as a reasonable approach for preventing primary adhesion formation and adhesion reformation.

Predictive factors with intestinal strangulation and operative intervention for recurrence in adhesive small bowel obstruction / 中国实用外科杂志

OBJECTIVE: To analyze the predictive factors for intestinal strangulation and to identify the surgical intervention for recurrence of adhesive small bowel obstruction(aSBO).METHODS: A retrospective study was conducted according the database in Department of Gastric and Colorectal Surgery, the First Hospital of Jilin University. Patients with aSBO from January 2013 to April 2016 were included in the study and were subject to follow-up. The clinical factors associated with strangulating obstruction and recurrences after treatment were analyzed by using univariate and multivariate logistic regression model.RESULTS: Total of 288 aSBO patients were included. Thirty-seven(12.9%)patients hadoccurredstrangulatingobstructions,and 251(87.1%)patients had simple obstructions.Increasing heart rate[>100/min;OR(95%CI):4.14(1.31-13.07),P=0.015],increasing WBC count[>15×10~9∕L;OR(95%CI):4.31(1.31-14.16),P=0.016],CT findings of thickening or swelling of the mesentery[OR(95%CI):11.04(2.18-55.92),P=0.004],and CT showing seroperitoneum [OR(95%CI):28.36(9.85-81.66),P<0.01] were detected as independent predictive factors for intestinal strangulation. During the follow-up,84 cases(29.2%)experienced recurrence of obstruction. The recurrence rates were reduced in the operation groups compared with non-operative groups[21.3%(26/122)vs.34.9%(58/166),P =0.01].CONCLUSION: Tachycardia,leukocytosis,CT findings of thickening or swelling of the mesentery,and CT showing seroperitoneum are considered as the predictive factors with intestinal strangulation in aSBO. Meanwhile,surgical treatments can reduce recurrence rate of aSBO patients significantly.

Laparoscopic adhesiolysis versus open surgery for adhesive small bowel obstruction: A meta-analysis / 解放军医学杂志

Objective To systematically evaluate the efficacy and safety of laparoscopic adhesiolysis versus open surgery for adhesive small bowel obstruction.Methods The databases including PubMed,EMbase,The Cochrane Library (Issue 3,2017),ICTRP,CNKI,VIP,CBM and Wanfang Data were electronically searched to collect randomized controlled trials (RCTs) about laparoscopic adhesiolysis versus open surgery for adhesive small bowel obstruction patients from inception to March 2017.Two reviewers independently screened literature,extracted data and assessed the risk of bias of included studies.Then meta-analysis was conducted by RevMan 5.3 software.Results A total of 31 studies involving 3293 patients were included.The results of meta-analysis showed that,compared with the open surgery group,the laparoscopic adhesiolysis group could significantly reduce the recurrence rate (OR=0.18,95％CI 0.12-0.25,P＜0.000 01),overall complications (OR=0.17,95％CI 0.13-0.23,P＜0.000 01),wound infection (OR=0.21,95％CI 0.13-0.35,P＜0.000 01),pneumonia (OR=0.35,95％CI 0.15-0.82,P=0.02) and intestinal fistula (OR=0.32,95％CI 0.15-0.70,P=0.005).Conclusions Current evidence shows that laparoscopic adhesiolysis can reduce the recurrence rate and complications in adhesive small bowel obstruction.Due to the limited quality of included studies,more high quality studies are needed to verify the above conclusion.

Intervention effects of fluid wax on adhesive small bowel obstruction / 中国中西医结合急救杂志

Objective To observe the intervention effects of fluid wax on the therapeutic course of patients with adhesive small bowel obstruction.Methods Two hundreds and eighty-eight patients with adhesive small bowel obstruction admitted into the Department of Gastrointestinal Surgery of Huzhou Central Hospital from December 2014 to June 2016 were enrolled, and they were divided into a fluid wax group and acontrol group by mechanical sampling method, each group 144 cases. The control group was treated with conventional comprehensive non-surgical treatment, in the fluid wax group, on the basis of the above conventional treatment, additionally after 2 hours of gastrointestinal decompression, the fluid wax 3 mL/kg was injected through a gastric tube that then was closed by a clip for 2 hours. The first exhaust and defecation times, the time for amelioration of abdominal pain, the time of gas-liquid flat disappearance, the length of stay in hospital, the rate of operation and the occurrence of adverse reactions were observed in the two groups.Results After treatment, the first exhaust time, the first defecation time, the time of relieving abdominal pain, the time of gas-liquid flat disappearance and the length of stay in hospital were significantly shorter in fluid wax group than those in control group [the first exhaust time (hours): 29.97±19.71 vs. 49.28±33.61, the first defecation time (hours): 60.25±28.37 vs.74.23±50.12, the time of relieving abdominal pain (hours): 35.78±20.98 vs. 51.83±25.02, the time of gas-liquid flat disappearance (hours): 71.60±39.50 vs. 90.98±57.91, the length of stay in hospital (days): 7.00±3.77 vs. 9.00±5.81, allP < 0.05], and the rate of operation in the fluid wax group was lower than that in the control group [18.75% (27/144) vs. 27.08% (39/144),P < 0.05]. No patients died in the two groups. In nearly 1 year follow-up, there were no adverse reactions associated with the study in the fluid wax group.Conclusion The intervention of fluid wax combined with conventional non-surgical methods can significantly shorten the disease course, reduce the rate of operation and the hospitalization time in patients with adhesive small bowel obstruction.

Predictive Factor for Surgical Indication in Postoperative Adhesive Small Bowel Obstruction

PURPOSE: There is a long-standing debate about whether postoperative adhesive small bowel obstruction (SBO) is best managed operatively or nonoperatively. The aim of this study is to define predictive factors for surgical indication in the treatment of an adhesive SBO. METHODS: Medical records and laboratory data of 211 patients who had a SBO after a laparotomy from January 2000 to December 2008 were reviewed retrospectively. The patients were divided into two groups according to the modality of SBO treatment: operatively and nonoperatively. The laboratory data and clinical parameters were compared between the two groups and a statistical analysis was performed. RESULTS: A Mann-Whitney analysis revealed previous SBO history, amylase, erythrocyte sedimentation rate (ESR), creatine phosphokinase, drainage amount via a Levin tube to be significant factors associated with surgical management. A multivariate analysis showed drainage amount via a Levin tube of 500 mL/day or greater (P=0.007), amylase of 90 IU/L or greater (P=0.04), and ESR of 11 mm/hr or greater (P=0.03) to be independent predictive factors for surgery. CONCLUSION: Surgical management should be considered among adhesive SBO patients with elevated amylase (> or =90 IU/L) and ESR (> or =11 mm/hr) and with large drainage amount through the Levin tube (> or =500 mL/day).

The Treatment of Adhesive Small Bowel Obstruction in Children

BACKGROUND: Immediate operative management has been applied to infants and children with an attacks of adhesive small-bowel obstruction (ASBO), but this treatment has been controversial. We retrospectively reviewed 30 patients who were admitted from 1992 to 1996 because of adhesive small-bowel obstructions. METHODS: Immediate operation was reserved for the 7 patients that presented with fever and leukocytosis and /or localized abdominal tenderness or complete obstruction. The remaining 23 patients initially underwent conservative treatment. RESULTS: Although 20 episodes were cured with conservative treatment, 3 cases subsequently required surgical intervention. No adverse occurrences were observed during or after the delayed operations. Recurrence occurred in 3 cases after surgery and in 2 cases after conservative treatment. In the study, we found that the age at the recent laparotomy, the time elapsed between the recent laparotomy and the obstructive episode, and the primary condition necessitating the laparotomy correlated significantly with the success of conservative treatment. CONCLUSIONS: We conclude that in the treatment of ASBO in children, conservative treatment through the use of abdominal decompression, antibiotics, fluid-electrolytes, physical therapy, etc. has to be applied first for patients without significant evidence of strangulation and complete obstruction.

Clinical Study on the Postoperative Adhesive Smal Bowel Obstruction

This clinical report is a review of the medical records of the 161 cases of postoperative adhesive intestinal obstruction treated at the Department of Surgery, Chung-Goo Sungsim General Hospital during 5 years from January 1991 to December 1995. The results of the study are as follows; 1) The most frequent age group was the 4th decade and the most prevalent age groups in the strangulated intestinal obstruction were below 10 years and above 60 years. 2) There was no difference among the types of previous abdominal operations in terms of the possibility of the strangulation. 3) The incidence of postoperative complication in the strangulated intestinal obstruction(58.3%) was higher than that in the non-strangulated intestinal obstruction(7.7%). 4) The overall mortality rate was 2.5%. The mortality rate in the strangulated intestinal obstruction was 8.3%, and was higher than that in the non-strangulated intestinal obstruction. 5) It is ideal to operate just before progression to strangulation, but it is not easy to decide when it happens. An operation should be considered in the following cases. (1) The presence of two or more symptoms; abdominal pain, obstipation, vomiting and abdominal distension. (2) The presence of two or more signs; leukocytosis, fever, tachycardia, localized abdominal tenderness, rebound tenderness and continuous abdominal pain. (3) Clinical signs of deterioration after 72 hours of conservative treatment.