AIM:To compare the efficacy and safety of the transthoracic and transhiatal approaches for cancer of the esophagogastric junction.METHODS:An electronic and manual search of the literature was conducted in PubMed,EmBase and the Cochrane Library for articles published between March1998 and January 2013.The pooled data included the following parameters:duration of surgical time,blood loss,dissected lymph nodes,hospital stay time,anastomotic leakage,pulmonary complications,cardiovascular complications,30-d hospital mortality,and long-term survival.Sensitivity analysis was performed by excluding single studies.RESULTS:Eight studies including 1155 patients with cancer of the esophagogastric junction,with 639 patients in the transthoracic group and 516 in the transhiatal group,were pooled for this study.There were no significant differences between two groups concerning surgical time,blood loss,anastomotic leakage,or cardiovascular complications.Dissected lymph nodes also showed no significant differences between two groups in randomized controlled trials(RCTs)and nonRCTs.However,we did observe a shorter hospital stay(WMD=1.92,95%CI:1.63-2.22,P<0.00001),lower30-d hospital mortality(OR=3.21,95%CI:1.13-9.12,P=0.03),and decreased pulmonary complications(OR=2.95,95%CI:1.95-4.45,P<0.00001)in the transhiatal group.For overall survival,a potential survival benefit was achieved for typeⅢtumors with the transhiatal approach.CONCLUSION:The transhiatal approach for cancers of the esophagogastric junction,especially typesⅢ,should be recommended,and its long-term outcome benefits should be further evaluated.
AIM:To compare the outcome of acid reflux prevention by Dor fundoplication after laparoscopic Heller myotomy(LHM)for achalasia.METHODS:Electronic database PubMed,Ovid(Evidence-Based Medicine Reviews,EmBase and Ovid MEDLINE)and Cochrane Library were searched between January 1995 and September 2012.Bibliographic citation management software(EndNote X3)was used for extracted literature management.Quality assessment of random controlled studies(RCTs)and non-RCTs was performed according to the Cochrane Handbook for Systematic Reviews of Interventions 5.1.0and a modification of the Newcastle-Ottawa Scale,respectively.The data were analyzed using Review Manager(Version 5.1),and sensitivity analysis was performed by sequentially omitting each study.RESULTS:Finally,6 studies,including a total of 523achalasia patients,compared Dor fundoplication with other types of fundoplication after LHM(Dor-other group),and 8 studies,including a total of 528 achalasia patients,compared Dor fundoplication with no fundoplication after LHM(Dor-no group).Dor fundoplication was associated with a significantly higher recurrence rate of clinical regurgitation and pathological acid reflux compared with the other fundoplication group(OR=7.16,95%CI:1.25-40.93,P=0.03,and OR=3.79,95%CI:1.23-11.72,P=0.02,respectively).In addition,there were no significant differences between Dor fundoplication and no fundoplication in all subjects.Other outcomes,including complications,dysphagia,postoperative physiologic testing,and operation-related data displayed no significant differences in the two comparison groups.CONCLUSION:Dor fundoplication is not the optimum procedure after LHM for achalasia.We suggest more attention should be paid on quality of life among different fundoplications.
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