Review for 10.1186/s12876-019-0978-0 (2019)

Reviewer ’s report  
 
Title: Vitamin K deficiency -induced hemorrhagic shock after thoracentesis: A case report  
 
Version: 0 Date: 25 Jun 2018  
 
Reviewer: Chen Er -zhen  
 
Reviewer 's report:  
 
1. The case presentation, which is narrated by date, hindered our comprehension of the 
process as the length of stay is long. A flow chart is suggested to concisely present the 
hospitalization process.  
2. The authors menti oned that blood coagulation tests were done when thoracic hemorrhage 
was observed, however, the test results are not presented in the article. It is of value to supply 
these results.  
3. Were other local signs of bleeding found?  
4. In the discussion part, t he authors listed a few potential causes of Vitamin K deficiency, 
whereas more details are supposed to be offered here, i.e.: duration of fasting necessary for 
Vitamin K deficiency, frequencies of SBT/ABPC administration in reference [4] and were they 
the same to yours?  
 
Are the methods appropriate and well described?  
If not, please specify what is required in your comments to the authors.  
 
Yes 
 
Does the work include the necessary controls?  
If not, please specify which controls are required in your comments to the authors.  
 
Unable to assess  
 
Are the conclusions drawn adequately supported by the data shown?  
If not, please explain in your comments to the authors.  
 
Yes 
 
Are you able to assess any statistics in the manuscript or would you recommend an  
additional statistical review?  
If an additional statistical review is recommended, please specify what aspects require further  
assessment in your comments to the editors.  
 
Not relevant to this manuscript  
 
Quality of written English  
Please indicate the quality of language in the manuscript:  
 
Needs some language corrections before being published  
 
Decl aration of competing interests  
Please complete a declaration of competing interests, considering the following questions:  
 
1. Have you in the past five years received reimbursements, fees, funding, or salary from an  
organisation that may in any way gain or lose financially from the publication of this  
manuscript, either now or in the future?  
 
2. Do you hold any stocks or shares in an organisation that may in any way gain or lose  
financially from the publication of this manuscript, either now or in the future?  
 
3. Do you hold or are you currently applying for any patents relating to the content of the  
manuscript?  
 
4. Have you received reimbursements, fees, funding, or salary from an organization that 
holds  or has applied for patents relating to the content of the manuscript?  
 
5. Do you have any other financial competing interests?  
 
6. Do you have any non -financial competing interests in relation to this paper?  
 
If you can answer no to all of the above, write 'I  declare that I have no competing interests' 
below.  If your reply is yes to any, please give details below.  
 
I declare that I have no competing interests.  
 
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