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03.01.2019 | Systematic Reviews and Meta-analyses | Ausgabe 1/2019

Langenbeck's Archives of Surgery 1/2019

Thoracoabdominal versus transhiatal surgical approaches for adenocarcinoma of the esophagogastric junction—a systematic review and meta-analysis

Zeitschrift:
Langenbeck's Archives of Surgery > Ausgabe 1/2019
Autoren:
Patrick Heger, Susanne Blank, Käthe Gooßen, Henrik Nienhüser, Markus K. Diener, Alexis Ulrich, André L. Mihaljevic, Thomas Schmidt
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s00423-018-1745-3) contains supplementary material, which is available to authorized users.
Patrick Heger, Susanne Blank, André L. Mihaljevic and Thomas Schmidt contributed equally to this work.
Protocol registration: CRD42016036476 (PROSPERO 2016)

Abstract

Purpose

The aim of this systematic review and meta-analysis was to compare the oncological and perioperative outcomes of transhiatally extended gastrectomy (TEG) and thoracoabdominal esophagectomy (TAE) for therapy of adenocarcinomas of the esophagogastric junction (AEG) with focus on AEG type II, as the optimal approach for these tumors is still unclear.

Methods

MEDLINE, EMBASE, and the Cochrane Library (CENTRAL) were searched until July 24, 2018. Studies comparing TAE and TEG for surgical treatment of AEG type tumors have been included. Patient’s baseline and perioperative data have been extracted and meta-analyses have been conducted for the outcomes: number of dissected lymph nodes, R0-resection rate, anastomotic leak rate, postoperative morbidity, and 30-day mortality.

Results

Of 6709 articles identified, 8 studies have been included for further analysis. One thousand thirty-four patients underwent TAE, and 1177 patients TEG. No differences were found between the approaches in regard to number of dissected lymph nodes (MD − 0.96; 95% CI − 3.07 to 1.15; p = 0.37), R0-resection rates (OR 0.97; 95% CI 0.57 to 1.63; p = 0.90), anastomotic leak rates (OR 1.13; 95% CI 0.69 to 1.86; p = 0.63), and 30-day mortality (OR 1.53; 95% CI 0.90 to 2.61; p = 0.11). However, a higher rate of postoperative morbidity was found after TAE (OR 1.55; 95% CI 1.12 to 2.14; p = 0.008).

Conclusions

The optimal approach to surgical therapy of AEG II still remains unclear. This study identified a significantly higher rate of postoperative morbidity after TAE at comparable surgical outcomes. Due to major limitations concerning the quality of included studies, current data strongly mandates a properly designed randomized controlled trial to identify the optimal surgical approach for AEG type II tumors.

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Zusatzmaterial
Supplement 1 : Exemplary search strategy for MEDLINE via Pubmed. (DOCX 16 kb)
423_2018_1745_MOESM1_ESM.docx
Supplement 2 : Data extraction sheet. (DOCX 59 kb)
423_2018_1745_MOESM2_ESM.docx
Literatur
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