Abstract
Background: Zenker’s diverticulum is a rare disease in the general population. Its treatment can be carried out by either an endoscopic or surgical approach. The objective of this study was to systematically identify all reports that compare both treatment modalities and to assess the outcomes in terms of length of procedure, length of hospitalization, time until diet introduction, complication rates, and recurrence rates. Methods: A search of Medline and Embase selected all studies that compared different methods of surgical and endoscopic treatment for Zenker’s diverticulum published in the English, Portuguese, and Spanish languages between 1975 and 2014. The meta-analysis was developed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) statement. Data were extracted and analyzed for five different outcomes. Results: Eleven studies met the inclusion criteria, describing outcomes of endoscopic versus surgical treatment for 596 patients with Zenker’s diverticulum. A meta-analysis of the studies suggested a statistically significant reduction in operating time and length of hospitalization, favoring endoscopic treatment (standardized mean difference (SMD) – 78.06, 95 %CI – 90.63, – 65.48 and SMD – 3.72, 95 %CI – 4.49, – 2.95, respectively), just as with the reduction in the fasting period (SMD – 4.30, 95 %CI – 5.18, – 3.42) and risk of complications (SMD – 0.09, 95 %CI 0.03, 0.43) for patients who had undergone the endoscopic approach in comparison with the surgical group. Also, a statistically significant reduction in the risk of symptom recurrence was seen when the treatment of Zenker’s diverticulum was carried out by a surgical approach compared with endoscopic treatment (SMD 0.08, 95 %CI 0.03, 0.13). Conclusion: Compared with a surgical approach, endoscopic treatment appeared to result in a shorter length of procedure and hospitalization, earlier diet introduction, and lower rates of complications, but in higher rates of symptom recurrence.
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