ABSTRACT
@#Objective To analyze the risk factors for esophagogastric anastomotic leakage (EGAL) after esophageal cancer surgery, and to establish a risk prediction model for early prevention and treatment. Methods Clinical data of patients undergoing esophagectomy in our hospital from January 2013 to October 2020 were retrospectively analyzed. The independent risk factors for postoperative EGAL were analyzed by univariate and multivariate logistic regression analyses, and a clinical nomogram prediction model was established. According to whether EGAL occurred after operation, the patients were divided into an anastomotic fistula group and a non-anastomotic fistula group. Results A total of 303 patiens were enrolled, including 267 males and 36 females with a mean age of 62.30±7.36 years. The incidence rate of postoperative EGAL was 15.2% (46/303). The multivariate logistic regression analysis showed that high blood pressure, chronic bronchitis, peptic ulcer, operation way, the number of lymph node dissected, anastomotic way, the number of intraoperative chest drainage tube, tumor location, no-supplementing albumin in the first three days after operation, postoperative pulmonary infection, postoperative use of bronchoscope were the independent risk factors for EGAL after esophageal cancer surgery (P<0.05). A prognostic nomogram model was established based on these factors with the area under the receiver operating characteristic curve of 0.954 (95%CI 0.924-0.975), indicating a high predictive value. Conclusion The clinical prediction model based on 11 perioperative risk factors in the study has a good evaluation efficacy and can promote the early detection, diagnosis and treatment of EGAL.
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@#Objective To systematically review risk factors for esophagogastric anastomotic leakage (EGAL) after esophageal cancer surgery for adults to provide theoretical basis for clinical prevention and treatment. Methods PubMed, Web of Science, The Cochrane Library, WanFang Data, VIP, CNKI and CBM were searched from inception to January 2020 to collect case control studies and cohort studies about risk factors for EGAL after esophageal cancer surgery. Two reviewers independently screened literature, extracted data and assessed risk of bias of included studies, and then, meta-analysis was performed by using RevMan 5.3 software. Results A total of 33 studies were included, including 19 case-control studies and 14 cohort studies, all of which had a Newcastle-Ottawa Scale (NOS)≥6. There were 26 636 patients, including 20 283 males and 6 353 females, and there were 9 587 patients in China and 17 049 patients abroad. The results of meta-analysis showed that the following factors could increase the risk for EGAL (P≤0.05), including patient factors (18): age, sex, body mass index (BMI), smoking history, smoking index (≥400), alcohol history, digestive tract ulcer, respiratory disease, lower ratio of forced expiratory volume in one second to forced vital capacity (FEV1/FVC), chronic obstructive pulmonary disease (COPD), coronary atherosclerosis, peripheral vascular disease, arrhythmia, diabetes, hypertension, cerebrovascular disease, celiac trunk calcification and descending aortic calcification; preoperative factors (6): abnormal liver function, renal insufficiency, American Society of Anesthesiologists (ASA) grading, neoadjuvant radiotherapy and preoperative albumin<35 g/L, preoperative lower albumin; intraoperative factors (7): retrosternal route, cervical anastomosis, thoracoscopic surgery, operation time≥4.5 h, tubular stomach, upper segment tumor, splenectomy; postoperative factors (5): respiratory failure, postoperative arrhythmia, use of fiberoptic bronchoscopy, pulmonary infection, deep venous thrombosis. Neoadjuvant chemotherapy could reduce the risk for postoperative EGAL (P<0.05). However, age≥60 years, upper gastrointestinal inflammation, diffusing capacity for carbon monoxide (DLCO%), thoracic surgery history, abdominal surgery history, glucocorticoid drugs history, neoadjuvant chemoradiotherapy, anastomotic embedding, end-to-end anastomosis, hand anastomosis, intraoperative blood loss and other factors were not significantly correlated with EGAL. Conclusion Current evidence suggests that the risk factors for postoperative EGAL include age, sex, BMI, smoking index, alcohol history, peptic ulcer, FEV1/FVC, COPD, diabetes, ASA grading, neoadjuvant radiotherapy, preoperative albumin<35 g/L, cervical anastomosis, thoracoscopic surgery, operation time≥4.5 h, tubular stomach, upper segment tumor, intraoperative splenectomy, postoperative respiratory failure, postoperative arrhythmia and other risk factors. Neoadjuvant chemotherapy may be the protection factor for EGAL. Due to limited study quality, more high quality studies are needed to verify the conclusion.
ABSTRACT
@#How to effectively repair esophageal fistulas, caused by esophageal perforation, rupture and anastomotic leakage after esophagectomy has always been a key problem for the digestive surgeon. Although there are many clinical treatment methods, the therapeutic effect is still completely unsatisfactory, especially when severe mediastinal purulent cavity infection is associated with the esophageal fistula. In recent years, foreign centers have promoted a new minimally invasive endoscopic treatment technology to repair the esophageal fistula, endoscopic vacuum-assisted closure therapy, with significantly curative effect. In this article, we will review the specific operation, advantages and disadvantages, as well as the clinical efficacy of endoscopic vacuum-assisted closure therapy in treating the esophageal fistulas, to provide a new therapeutic technique for esophageal fistulas and expand the new field of minimally invasive endoscopic therapy.
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@#Objective To systematically evaluate the efficacy of tubular stomach and whole stomach reconstruction in the treatment of esophageal cancer. Methods We searched PubMed, Web of Science, The Cochrane Library, EMbase, CNKI, Wanfang Data, VIP and CBM databases to collect the randomized controlled trial (RCT) studies on the efficacy comparison between tubular stomach and total gastric reconstruction of esophagus in esophagectomy from their date of inception to May 2019. Then meta-analysis was performed by using RevMan 5.3 software. Results A total of Twenty-nine RCTs were included, and 3 012 patients were involved. The results of meta-analysis showed that the postoperative complications such as anastomotic fistula [RR=0.64, 95%CI (0.50, 0.83), P=0.000 6], anastomotic stenosis [RR=0.65, 95%CI (0.50, 0.86), P=0.002], thoracic gastric syndrome [RR=0.19, 95%CI (0.13, 0.27), P<0.001], reflux esophagitis [RR=0.23, 95%CI (0.19, 0.30), P<0.001], gastric emptying disorder [RR=0.39, 95%CI (0.27, 0.57), P<0.001] and pulmonary infection [RR=0.44, 95%CI (0.31, 0.62), P<0.001] were significantly reduced, and the postoperative quality of life score and satisfaction were higher at 6 months and 1 year in the tubular stomach group (P<0.05). In terms of intraoperative blood loss and postoperative hospital stay, they were better in the tubular stomach group than those in the whole stomach group (P<0.05). However, there was no statistically significant difference between the two groups in operation time, postoperative gastrointestinal decompression time, postoperative closed drainage time, postoperative 1-year, 2-year and 3-year survival rate, postoperative quality of life score at 3 weeks and 3 months, and postoperative life satisfaction at 3 weeks. Conclusion The tubular stomach is more advantageous than the whole stomach in the reconstruction of esophagus after esophagectomy.