Efficacy Of Radical And Conservative Surgery For Hepatic Cystic Echinococcosis: A Meta-Analysis
INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL MEDICINE(2015)
Abstract
Objective: To systematically evaluate the efficacy and safety of radical surgery (RS) and conservative surgery (CS) in the treatment of hepatic cystic echinococcosis (HCE). Methods: We searched PubMed, Embase, MEDLINE, SCI, CNKI, CBM, and WanFang databases, and the Cochrane Library (2013, Issue 3) for references published before December 2013. Both randomized and non-randomized controlled trials of radical and conservative surgery for HCE were collected. After the literature was screened in accordance with inclusion and exclusion criteria, data were extracted and the quality of methodologies of selected references was determined independently by two evaluators. A meta-analysis was performed on eligible studies with RevMan 5.1 statistical software. Results: Five non-randomized controlled trials (1267 patients) were included in this study. Patients in the RS group had fewer postoperative complications compared with the CS group [OR = 0.42, 95% CI (0.32, 0.56), P < 0.00001], whereas there was no significant difference in rates of postoperative bile leakage between the two groups [OR = 0.22, 95% CI (0.05, 1.12), P = 0.07]. Postoperative follow-up of patients revealed a significantly lower HCE recurrence rate in the RS versus CS group [OR = 0.17, 95% CI (0.08, 0.38), P < 0.0001]. Additionally, no statistical differences in the number of days of hospitalization [MD = -2.47, 95% CI (-6.42, 1.49), P = 0.22] and perioperative mortality [OR = 0.87, 95% CI (0.27, 2.79), P = 0.82] were identified between groups. Conclusion: RS, especially total pericystectomy, has obvious advantages over CS: fewer complications, lower postoperative recurrence, and a lower incidence of biliary fistula and infection, making RS the preferred surgical method. This conclusion requires further validation with high-quality RCTs with large sample sizes. Surgical approach should be based upon comprehensive assessment of individual circumstances in HCE patients.
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Key words
Hepatic cystic echinococcosis, radical surgery, conservative surgery, total pericystectomy, endocystectomy
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