Review for 10.1186/s12876-021-01624-9 (2021)

Reviewer’s report
Title: 
Aorto-esophageal fistula caused by fishbone ingestion: a case report on
staged endovascular and endoscopic treatment
Version: 
0 
Date: 
13 Nov 2020
Reviewer: 
Jie zhang
Reviewer's report:
This case report presented a case of AEF causing by fishbone ingestion and
successful treatment by TEVAR combining with endoscopic treatment. Recent
published meta-analysis showed TEVAR combining with esophagectomy
treatment can improved AEF patients' prognosis. With the development of
endoscopy, TEVAR combining with endoscopic treatment may become the first
choice for such patients. I have some comments.
1. AEF patients usually presented Chiari's triad. Was there Chiari's triad in this
patient, and were there specific signs of AEF in computed tomography, such as
extravasated contrast material from the aorta and air bubbles around the thoracic
aorta.
2. Please supplement computed tomography of aorto-esophageal fistula and
endoscopic figure before endovascular repair, and the CTA figure before and
after endovascular repair if the author has CTA figure.
3. In the discussion part, esophageal stent implantation is usually the current
endoscopic treatment option, why not considering stent implantation in this
patient, please discuss the difference between esophageal stent implantation and
endoscopic clip. 
4. A number of new references, including meta-analysis, have been published in
recent years, please referred.
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of appropriate controls), and are the conclusions supported by the evidence
presented?
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