Project description:BackgroundEndoluminal vacuum-assisted therapy (EVT) has been introduced recently to treat colorectal anastomotic leakage. The aim of this study was to evaluate the safety and efficacy of EVT in the treatment of anastomotic leakage and rectal stump insufficiency after Hartmann's procedure.MethodsA systematic search of MEDLINE, Scopus and Cochrane databases was performed using search terms related to EVT and anastomotic leakage or rectal stump insufficiency in line with the PRISMA checklist. Observational studies, RCTs and case series studies published to July 2017 were included. Primary outcomes of the review were the success of EVT, defined as complete or partial healing of the anastomotic defect and associated cavity, and the rate of stoma reversal after EVT. Secondary outcomes included the duration of treatment to complete healing, complications of treatment and the need for further intervention. A meta-analysis was conducted. The potential effect of clinical confounders on the failure of EVT was investigated using the random-effects meta-regression model.ResultsOf 476 articles identified, 17 studies reporting on 276 patients were ultimately included. The weighted mean rate of success was 85·3 (95 per cent c.i. 80·1 to 90·5) per cent, with a median duration from inception of EVT to complete healing of 47 (range 40-105) days. The weighted mean rate of stoma reversal across the studies was 75·9 (64·6 to 87·2) per cent. Twenty-five patients (9·1 per cent) required additional interventions after EVT. Thirty-eight patients (13·8 per cent) developed complications. The weighted mean complication rate across the studies was 11·1 (6·0 to 16·2) per cent. Variables significantly associated with failure included preoperative radiotherapy, absence of diverting stoma, complications and male sex.ConclusionEVT is associated with a high rate of complete healing of anastomotic leakage and stoma reversal. It is an effective option in appropriately selected patients with anastomotic leakage.
Project description:IntroductionEndoscopic treatment by vacuum therapy (EVT) or covered stents has emerged as an improved treatment option for upper gastrointestinal wall defects and is regarded as an improved treatment option for anastomotic leakage (AL) after esophagectomy. However, endoluminal EVT devices may lead to obstruction of the GI tract; and a high rate of migration and missing functional drainage has been shown for covered stents. The recently developed VACStent, a combination of a fully covered stent within a polyurethane sponge cylinder may overcome these issues allowing EVT while stent passage is still open. Initial clinical applications have demonstrated efficacy, practicability and safety in the treatment of esophageal leaks (AL).MethodsIn this pilot study, 9 patients with high-risk anastomosis after neoadjuvant therapy undergoing hybrid esophagectomy received the VACStent in a preemptive setting for the assessment of the reduction of the AL rate, postoperative morbidity and mortality.ResultsTechnical success of the application of the VACStent® was achieved in all interventions. One patient experienced anastomotic leakage 10 days after esophagectomy and was successfully treated with two consecutive VACStents and a VAC Sponge. In summary, mortality in-hospital was 0% and anastomotic healing was uneventful without septic episodes. No severe device-related adverse events (SADE) nor significant local bleeding or erosion could be observed. Oral intake of liquids or food was documented in all patients. The device handling was regarded uncomplicated.DiscussionThe preemptive application of the VACStent offers a promising new option for improved clinical treatment avoiding of critical situations in hybrid esophagectomy, which should be validated in a large clinical study.
Project description:Esophageal fistulas in the cervical region are usually difficult to manage and carry a high morbidity. We report a case of an esophago-colonic fistula after colonic interposition, successfully managed with vacuum-assisted closure 'V.A.C. system', (Kinetic Concepts Inc., San Antonio, TX, USA). The patient initially presented with purulent fluid from the cervical wound 13 days after surgery. Esophagogram confirmed a leak. Since the patient had a history of anastomotic leaks, a surgical intervention was not the treatment of choice. In light of this, conservative treatment with V.A.C. system was initiated. She underwent full recovery.
Project description:Background and study aims Esophageal defects (leaks, fistulas, and perforations) are associated with significant morbidity and mortality. Endoluminal vacuum-assisted closure (EVAC) is a novel intervention that entails the use of sponges in the defect along with negative pressure to achieve granulation tissue formation and healing and has been gaining popularity. We performed a systematic review and pooled analysis of available literature to assess the safety and effectiveness of EVAC for esophageal defects. Patients and methods We queried PubMed/Medline, Embase, Cochrane, and Web of Science through September 25, 2020 to include all pertinent articles highlighting the safety and effectiveness profile of EVAC for esophageal defects. Pooled rates, 95 % confidence intervals (CIs), and heterogeneity ( I 2 ) were assessed for each outcome. Results A total of 18 studies with 423 patients were included (mean age 64.3 years and males 74.4 %). The technical success for EVAC was 97.1 % (CI: 95.4 %-98.7 %, I 2 = 0 %). The clinical success was 89.4 % (CI: 85.6 %-93.1 %, I 2 = 36.8 %). The overall all-cause mortality and adverse events (AEs) noted were 7.1 % (CI: 4.7 %-9.5 %, I 2 = 0 %) and 13.6 % (CI: 8.0 %-19.1 %, I 2 = 68.9 %), respectively. The pooled need for adjuvant therapy was 15.7 % (CI: 9.8 %-21.6 %, I 2 = 71.1 %). Conclusions This systematic review and meta-analysis showed high rates of technical success, clinical success, and low all-cause mortality and AEs using EVAC. Although the technique is a promising alternative, the lack of comparative studies poses a challenge in making definite conclusions regarding use of EVAC compared to other endoscopic modalities, such as clips and stents.
Project description:Background and aimsGI perforations, leaks, and fistulas are types of full-thickness mural defects that frequently occur as adverse events from GI surgeries such as esophagectomy for malignancy and bariatric surgery. Historically, treatment has entailed a combination of reoperation, percutaneous drainage, and bowel rest. Recently, there has been a changing paradigm in the management of these defects. Endoscopic interventions, including endoclipping and placement of self-expanding metal stents (SEMSs), have been increasingly used with good success. Despite this, some defects remain refractory to these techniques. Endoscopic vacuum-assisted closure (EVAC) is a new, promising endoscopic approach to repairing these defects. EVAC works through applying continuous, controlled negative pressure at the defect with the use of an endoscopically placed polyurethane sponge connected to an electronic vacuum device. EVAC has been shown to be feasible, safe, and effective.MethodsWe present a video series of 3 cases demonstrating the successful application of EVAC for the treatment of anastomotic leakage after esophagectomy and of fistula formation after bariatric surgery.ResultsTwo patients experienced anastomotic leakage after esophagectomy for esophageal adenocarcinoma, and 1 patient experienced a chronic gastric fistula after Roux-en-Y gastric bypass. The gastric bypass patient's fistula failed to resolve with over-the-scope-clip placement, and all 3 patients' defects did not heal despite SEMS placement; therefore, EVAC was performed. The bariatric surgery patient required 9 sponge exchanges over 35 days, and the 2 esophagectomy patients each required 3 sponge exchanges over 13 days. All 3 patients had resolution of their defects with EVAC. No adverse events occurred, and all patients have had no recurrence for several months.ConclusionsThese cases help to highlight the feasibility, safety, and efficacy of EVAC for the closure of full-thickness GI defects. On the basis of our experience, the use of EVAC should be considered for these complex and refractory cases.