Review for 10.1186/s12876-022-02375-x (2022)

Reviewer’s report
Title: 
Hypercontractile esophagus responsive to potassium-competitive acid
blockers: A case report
Version: 
0 
Date: 
11 Mar 2022
Reviewer's report:
In this manuscript, Shao et al. reported a case of jackhammer esophagus who
was successfully treated by vonoprazan.
This is a very important case report showing the efficacy of P-CAB against
hypercontractile esophagus. Below are some minor points to be addressed.
Minor points
1) Did the findings of barium esophagogram become normal after P-CAB
treatment? If the authors performed barium esophagogram after the treatment,
adding it will improve the quality of this manuscript.
2) Grammatical errors exist in the text (e.g. P.4 L.13 "abnormally constrictions",
etc.). These errors need to be corrected.
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Is the study design appropriate to answer the research question (including the use
of appropriate controls), and are the conclusions supported by the evidence
presented?
Yes
Are the methods sufficiently described to allow the study to be repeated?
Yes
Is the use of statistics and treatment of uncertainties appropriate?
Yes
Is the presentation of the work clear?
Yes
Are the images in this manuscript (including electrophoretic gels and blots) free
from apparent manipulation?
Yes