Review for 10.1186/s12876-021-02026-7 (2021)

Reviewer’s report
Title: 
Prognosis of liver transplantation: Does postoperative ileus matter ?
Version: 
1 
Date: 
31 Jul 2021
Reviewer's report:
The paper is well written and addresses a common postoperative complication. I
recommend the authors should include information regarding type of
encountered ileus (paralytic or mechanical due to adhesions). Were there any
cases requiring reoperation for adhesiolysis? Regarding risk factors for
postoperative ileus development, the authors refer to the duration of anhepatic
phase. I suggest that a comment about the total time of portal vein clamping
should be extra added, since congestion of portal vein system is associated to
bowel mucosa edema and paralytic ileus.
Finally, the type of bile duct outflow reconstruction should be highlighted. Were
there any cases of biliodigestive anastomosis? 
Taking into account the bowel
manipulation during the establishment of a biliodigestive anastomosis, such
cases might be more frequently associated to postoperative ileus.
I think that after briefly commenting on the above issues the manuscript is
suitable for publication.
Kind regards
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