Review for 10.1186/s12876-020-01273-4 (2020)

Reviewer ’s report  
 
Title: Stenting as a bridge to surgery for extra -colonic malignancy induced colorectal 
obstruction: preliminary experience  
 
Version: 1 Date: 02 Feb 2020  
 
Reviewer: Akihisa Matsuda  
 
Reviewer's report:  
 
The manuscript by Kim EJ et al. reported rare case series of BTS strategy followed by stent 
insertion for extracolic malignancy. It is interesting manuscript, but it might be said that 
accumulation of small sample size of too heterogenous cohort. First of all, the indication of ECM 
resection is obscure.  
 
1. (Table 1) Does "Neoadjuvant therapy" mean a SEMS placement followed by 
neoadjuvant (chemo or chemoradiation) therapy?  
2. It seems to be that postoperative complications  were not included to definitions of 
surgical success and failure.  
3. The chemotherapy regimen, which patients received after stenting included anti -
angiogenic agents?  
4. Included patients had no other metastatic sites other than lesions, which induced ECM ? 
If they have, the clinical meaning of resection of ECM site is doubtful.  
 
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 contro ls 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:  
 
Acceptable  
 
Declaration of competing interests  
Please complete a declaration of competing interests, considering the following questions:  
 
1. Have you in the past five years received reimbursements, f ees, funding, or salary from an 
organisation that may in any way gain or lose financial ly 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 c an 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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