Summary Background Formation of adhesions after peritoneal surgery results in high morbidity. Barriers to prevent adhesion are seldom applied, despite their ability to reduce the severity of adhesion ...formation. We evaluated the benefits and harms of four adhesion barriers that have been approved for clinical use. Methods In this systematic review and meta-analysis, we searched PubMed, CENTRAL, and Embase for randomised clinical trials assessing use of oxidised regenerated cellulose, hyaluronate carboxymethylcellulose, icodextrin, or polyethylene glycol in abdominal surgery. Two researchers independently identified reports and extracted data. We compared use of a barrier with no barrier for nine predefined outcomes, graded for clinical relevance. The primary outcome was reoperation for adhesive small bowel obstruction. We assessed systematic error, random error, and design error with the error matrix approach. This study is registered with PROSPERO, number CRD42012003321. Findings Our search returned 1840 results, from which 28 trials (5191 patients) were included in our meta-analysis. The risks of systematic and random errors were low. No trials reported data for the effect of oxidised regenerated cellulose or polyethylene glycol on reoperations for adhesive small bowel obstruction. Oxidised regenerated cellulose reduced the incidence of adhesions (relative risk RR 0·51, 95% CI 0·31–0·86). Some evidence suggests that hyaluronate carboxymethylcellulose reduces the incidence of reoperations for adhesive small bowel obstruction (RR 0·49, 95% CI 0·28–0·88). For icodextrin, reoperation for adhesive small bowel obstruction did not differ significantly between groups (RR 0·33, 95% CI 0·03–3·11). No barriers were associated with an increase in serious adverse events. Interpretation Oxidised regenerated cellulose and hyaluronate carboxymethylcellulose can safely reduce clinically relevant consequences of adhesions. Funding None.
Esophageal emergencies: WSES guidelines Chirica, Mircea; Kelly, Michael D; Siboni, Stefano ...
World journal of emergency surgery,
05/2019, Letnik:
14, Številka:
1
Journal Article
Recenzirano
Odprti dostop
The esophagus traverses three body compartments (neck, thorax, and abdomen) and is surrounded at each level by vital organs. Injuries to the esophagus may be classified as foreign body ingestion, ...caustic ingestion, esophageal perforation, and esophageal trauma. These lesions can be life-threatening either by digestive contamination of surrounding structures in case of esophageal wall breach or concomitant damage of surrounding organs. Early diagnosis and timely therapeutic intervention are the keys of successful management.
Objective To estimate the disease burden of the most important complications of postoperative abdominal adhesions: small bowel obstruction, difficulties at reoperation, infertility, and chronic pain. ...Design Systematic review and meta-analyses. Data sources Searches of PubMed, Embase, and Central, from January 1990 to December 2012, without restrictions to publication status or language. Study selection All types of studies reporting on the incidence of adhesion related complications were considered. Data extraction and analysis The primary outcome was the incidence of adhesive small bowel obstruction in patients with a history of abdominal surgery. Secondary outcomes were the incidence of small bowel obstruction by any cause, difference in operative time, enterotomy during adhesiolysis, and pregnancy rate after abdominal surgery. Subgroup and sensitivity analyses were done to study the robustness of the results. A random effects model was used to account for heterogeneity between studies. Results We identified 196 eligible papers. Heterogeneity was considerable for almost all meta-analyses. The origin of heterogeneity could not be explained by study design, study quality, publication date, anatomical site of operation, or operative technique. The incidence of small bowel obstruction by any cause after abdominal surgery was 9% (95% confidence interval 7% to 10%; I2=99%). the incidence of adhesive small bowel obstruction was 2% (2% to 3%; I2=93%); presence of adhesions was generally confirmed by emergent reoperation. In patients with a known cause of small bowel obstruction, adhesions were the single most common cause (56%, 49% to 64%; I2=96%). Operative time was prolonged by 15 minutes (95% confidence interval 9.3 to 21.1 minutes; I2=85%) in patients with previous surgery. Use of adhesiolysis resulted in a 6% (4% to 8%; I2=89%) incidence of iatrogenic bowel injury. The pregnancy rate after colorectal surgery in patients with inflammatory bowel disease was 50% (37% to 63%; I2=94%), which was significantly lower than the pregnancy rate in medically treated patients (82%, 70% to 94%; I2=97%). Conclusions This review provides detailed and systematically analysed knowledge of the disease burden of adhesions. Complications of postoperative adhesion formation are frequent, have a large negative effect on patients’ health, and increase workload in clinical practice. The quantitative effects should be interpreted with caution owing to large heterogeneity. Registration The review protocol was registered through PROSPERO (CRD42012003180).
Adhesions are the most common driver of long-term morbidity after abdominal surgery. Although laparoscopy can reduce adhesion formation, the effect of minimally invasive surgery on long-term ...adhesion-related morbidity remains unknown. We aimed to assess the impact of laparoscopy on adhesion-related readmissions in a population-based cohort.
We did a retrospective cohort study of patients of any age who had abdominal or pelvic surgery done using laparoscopic or open approaches between June 1, 2009, and June 30, 2011, using validated population data from the Scottish National Health Service. All patients who had surgery were followed up until Dec 31, 2017. The primary outcome measure was the incidence of hospital readmissions directly related to adhesions in the laparoscopic and open surgery cohorts at 5 years. Readmissions were categorised as directly related to adhesions, possibly related to adhesions, and readmissions for an operation that was potentially complicated by adhesions. We did subgroup analyses of readmissions by anatomical site of surgery and used Kaplan-Meier analyses to assess differences in survival across subgroups. We used multivariable Cox-regression analysis to determine whether surgical approach was an independent and significant risk factor for adhesion-related readmissions.
Between June 1, 2009, and June 30, 2011, 72 270 patients had an index abdominal or pelvic surgery, of whom 21 519 (29·8%) had laparoscopic index surgery and 50 751 (70·2%) had open surgery. Of the 72 270 patients who had surgery, 2527 patients (3·5%) were readmitted within 5 years of surgery for disorders directly related to adhesions, 12 687 (17·6%) for disorders possibly related to adhesions, and 9436 (13·1%) for operations potentially complicated by adhesions. Of the 21 519 patients who had laparoscopic surgery, 359 (1·7% 95% CI 1·5–1·9) were readmitted for disorders directly related to adhesions compared with 2168 (4·3% 4·1–4·5) of 50 751 patients in the open surgery cohort (p<0·0001). 3443 (16·0% 15·6–16·4) of 21 519 patients in the laparoscopic surgery cohort were readmitted for disorders possibly related to adhesions compared with 9244 (18·2% 17·8–18·6) of 50 751 patients in the open surgery cohort (p<0·005). In multivariate analyses, laparoscopy reduced the risk of directly related readmissions by 32% (hazard ratio HR 0·68, 95% CI 0·60–0·77), and of possibly related readmissions by 11% (HR 0·89, 0·85–0·94) compared with open surgery. Procedure type, malignancy, sex, and age were also independently associated with risk of adhesion-related readmissions.
Laparoscopic surgery reduces the incidence of adhesion-related readmissions. However, the overall burden of readmissions associated with adhesions remains high. With further increases in the use of laparoscopic surgery expected in the future, the effect at the population level might become larger. Further steps remain necessary to reduce the incidence of adhesion-related postsurgical complications.
Dutch Adhesion Group and Nordic Pharma.
Up to 32% of patients with esophageal cancer show a pathological complete response (ypCR) after neoadjuvant therapy. To prevent overtreatment, the indication to perform esophagectomy in these ...patients should be reconsidered. Implementing an organ-preserving strategy for patients with ypCR requires an accurate assessment of residual disease after neoadjuvant treatment. The aim of this study was to systematically review the effectiveness of imaging techniques used for detection of ypCR after neoadjuvant therapy but before resection in patients with esophageal cancer.
A systematic literature search of the Medline, Embase, and Cochrane Library databases was performed from January 1, 2000, to December 13, 2017. Eligible studies were diagnostic studies that compared results of imaging modalities after neoadjuvant therapy to histopathological findings in the resection specimen after esophagectomy. Methodological quality was assessed by the Cochrane Quality Assessment of Diagnostic Accuracy Studies, version 2, model. Primary outcome measures were true positive, false-positive, false-negative, and true negative values of imaging techniques predicting ypCR. A meta-analysis was performed by pooling sensitivities and specificities by using a bivariate model.
A total of 4420 articles were identified. After exclusion of irrelevant titles and abstracts, 360 articles were reviewed in full text. In total, four imaging modalities (computed tomography CT, positron emission tomography PET-CT, endoscopic ultrasound EUS, and magnetic resonance imaging MRI) were used for restaging. The meta-analysis was conducted with data from 56 studies involving 3625 patients. The pooled sensitivities of CT, PET-CT, EUS, and MRI for detecting ypCR were 0.35, 0.62, 0.01 and 0.80, respectively, whereas the pooled specificities were 0.83, 0.73, 0.99, and 0.83, respectively. The positive predictive value in detecting ypCR was 0.47 for CT, 0.41 for PET-CT, not applicable for EUS, and 0.61 for MRI.
Current imaging modalities such as CT, PET-CT, and EUS seem to be insufficiently accurate to identify complete responders. More accurate diagnostic tests are needed to improve restaging accuracy for patients with esophageal cancer.
Adhesive small bowel obstruction (ASBO) is a common surgical emergency, causing high morbidity and even some mortality. The adhesions causing such bowel obstructions are typically the footprints of ...previous abdominal surgical procedures. The present paper presents a revised version of the Bologna guidelines to evidence-based diagnosis and treatment of ASBO. The working group has added paragraphs on prevention of ASBO and special patient groups.
The guideline was written under the auspices of the World Society of Emergency Surgery by the ASBO working group. A systematic literature search was performed prior to the update of the guidelines to identify relevant new papers on epidemiology, diagnosis, and treatment of ASBO. Literature was critically appraised according to an evidence-based guideline development method. Final recommendations were approved by the workgroup, taking into account the level of evidence of the conclusion.
Adhesion formation might be reduced by minimally invasive surgical techniques and the use of adhesion barriers. Non-operative treatment is effective in most patients with ASBO. Contraindications for non-operative treatment include peritonitis, strangulation, and ischemia. When the adhesive etiology of obstruction is unsure, or when contraindications for non-operative management might be present, CT is the diagnostic technique of choice. The principles of non-operative treatment are
per os, naso-gastric, or long-tube decompression, and intravenous supplementation with fluids and electrolytes. When operative treatment is required, a laparoscopic approach may be beneficial for selected cases of simple ASBO.Younger patients have a higher lifetime risk for recurrent ASBO and might therefore benefit from application of adhesion barriers as both primary and secondary prevention.
This guideline presents recommendations that can be used by surgeons who treat patients with ASBO. Scientific evidence for some aspects of ASBO management is scarce, in particular aspects relating to special patient groups. Results of a randomized trial of laparoscopic versus open surgery for ASBO are awaited.
Adhesiolysis-Related Morbidity in Abdominal Surgery ten Broek, Richard P G; Strik, Chema; Issa, Yama ...
Annals of surgery,
2013-July, 2013-Jul, 2013-07-00, 20130701, Letnik:
258, Številka:
1
Journal Article
Recenzirano
OBJECTIVE:To determine the incidence of bowel injury in operations requiring adhesiolysis and to assess the impact of adhesiolysis on the incidence of surgical complications, postoperative morbidity, ...and costs.
BACKGROUND:Morbidity of adhesiolysis during abdominal surgery seems an important health care problem, but the direct impact of adhesiolysis on inadvertent organ damage, morbidity, and costs is unknown.
METHODS:In a prospective cohort study, detailed data on adhesiolysis were gathered by direct observation during elective abdominal surgery. Comparison was made between surgical procedures with and without adhesiolysis on the incidence of inadvertent bowel defects. Secondary outcomes were the effect of adhesiolysis and bowel injury on surgical complications, other morbidity, and costs.
RESULTS:A total of 755 (out of 844) surgeries in 715 patients were included. Adhesiolysis was required in 475 (62.9%) of operations. Median adhesiolysis time was 20 minutes (range1–177). Fifty patients (10.5%) undergoing adhesiolysis inadvertently incurred bowel defect, compared with 0 (0%) without adhesiolysis (P < 0.001). In univariate and multivariate analyses, adhesiolysis was associated with an increase of sepsis incidence odds ratio (OR)5.12; 95% confidence interval (CI)1.06–24.71, intra-abdominal complications (OR3.46; 95% CI1.49–8.05) and wound infection (OR2.45; 95% CI1.01–5.94), longer hospital stay (2.06 ± 1.06 days), and higher hospital costs $18,579 (15,204–21,954) vs $14,063 (12,471–15,655). Mortality after adhesiolysis complicated by a bowel defect was 4 out of 50 (8%), compared with 7 out of 425 (1.6%) after uncomplicated adhesiolysis (OR5.19; 95% CI1.47–18.41).
CONCLUSIONS:Adhesiolysis and inadvertent bowel injury have a large negative effect on the convalescence after abdominal surgery. The awareness of adhesion-related morbidity during reoperation and the prevention of postsurgical adhesion deserve priority in research and clinical practice.
Background and Aim
Polycystic liver disease (PLD) is related to hepatomegaly which causes an increased mechanical pressure on the abdominal wall. This may lead to abdominal wall herniation (AWH). We ...set out to establish the prevalence of AWH in PLD and explore risk factors.
Methods
In this cross‐sectional cohort study, we assessed the presence of AWHs from PLD patients with at least 1 abdominal computed tomography or magnetic resonance imaging scan. AWH presence on imaging was independently evaluated by two researchers. Data on potential risk factors were extracted from clinical files.
Results
We included 484 patients of which 40.1% (n = 194) had an AWH. We found a clear predominance of umbilical hernias (25.8%, n = 125) while multiple hernias were present in 6.2% (n = 30). Using multivariate analysis, male sex (odds ratio OR 2.727 p < .001), abdominal surgery (OR 2.575, p < .001) and disease severity according to the Gigot classification (Type 3 OR 2.853, p < .001) were identified as risk factors. Height‐adjusted total liver volume was an independent PLD‐specific risk factor in the subgroup of patients with known total liver volume (OR 1.363, p = .001). Patients with multiple hernias were older (62.1 vs. 55.1, p = .001) and more frequently male (22.0% vs. 50.0%, p = .001).
Conclusion
AWHs occur frequently in PLD with a predominance of umbilical hernias. Hepatomegaly is a clear disease‐specific risk factor.
Adhesions, that form in 60-80% of all abdominal operations, can cause complications such as chronic abdominal pain, small-bowel obstruction, female infertility, and the need for adhesiolysis in ...future surgeries. Our 2010 Adhesion Awareness survey demonstrated that despite the huge clinical impact of adhesions; adhesion-related complications were seldom mentioned in the informed consent. Six years later, a follow-up survey was conducted to assess the progress on awareness on adhesion-related complications in the Netherlands.
The 2010 Adhesion Awareness survey was repeated after a literature update. The knowledge regarding adhesions; the use of anti-adhesive agents and involvement in the informed consent process were assessed. Surgeons and surgical trainees were contacted by e-mail. The data was analysed using a Chi-square or Mann-Whitney U test and corrected for multiple testing.
The response rate was 32.6%, similar to the survey in 2010 (34.4%). 88.1% agreed with the clinical relevance of adhesions, comparable to 2010 (89.8%). The score on the knowledge test was 38.8% (2010: 37.2%). Involvement of adhesion-related complications in the informed consent process increased, although 32.5% almost never mentions adhesions. In 2016, 42.4% reported a correct occurrence of bowel lesions during adhesiolysis, higher than in 2010 (P<0.001).
The adhesion awareness did not increase in six years, despite the efforts made. However, an increased awareness regarding adhesiolysis related complications was detected. Improvement of knowledge and behavior is essential to narrowing the gap between the impact of adhesions as a major complication of abdominal surgery and the limited adhesion awareness.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
OBJECTIVE:The aim of this study was to compare adhesion formation after laparoscopic and open colorectal cancer resection.
SUMMARY OF BACKGROUND DATA:After colorectal surgery, most patients develop ...adhesions, with a high burden of complications. Laparoscopy seems to reduce adhesion formation, but evidence is poor. Trials comparing open- and laparoscopic colorectal surgery have never assessed adhesion formation.
METHODS:Data on adhesions were gathered during resection of colorectal liver metastases. Incidence of adhesions adjacent to the original incision was compared between patients with previous laparoscopic- and open colorectal resection. Secondary outcomes were incidence of any adhesions, extent and severity of adhesions, and morbidity related to adhesions or adhesiolysis.
RESULTS:Between March 2013 and December 2015, 151 patients were included. Ninety patients (59.6%) underwent open colorectal resection and 61 patients (40.4%) received laparoscopic colorectal resection. Adhesions to the incision were present in 78.9% after open and 37.7% after laparoscopic resection (P < 0.001). The incidence of abdominal wall adhesions and of any adhesion was significantly higher after open resection; the incidence of visceral adhesions did not significantly differ. The extent of abdominal wall and visceral adhesions and the median highest Zühlke score at the incision were significantly higher after open resection. There were no differences in incidence of small bowel obstruction during the interval between the colorectal and liver operations, the incidence of serious adverse events, and length of stay after liver surgery.
CONCLUSION:Laparoscopic colorectal cancer resection is associated with a lower incidence, extent, and severity of adhesions to parietal surfaces. Laparoscopy does not reduce the incidence of visceral adhesions.
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