Review for 10.1186/s12876-022-02398-4 (2022)

Reviewer’s report
Title: 
A rare case with multiple arterial variations of the liver complicated
laparoscopic pancreaticoduodenectomy
Version: 
0 
Date: 
22 Feb 2022
Reviewer's report:
Thank you for sharing details of the variant origin of the right hepatic artery
relevant to pancreaticoduodenectomy
From the reconstructed images it appears that that the right hepatic artery and
gastroduodenal artery have a common trunk which was accidentally ligated
during surgery. Is it appropriate to call the right hepatic artery as originating
from the gastroduodenal artery?
In addition to careful review of 
pre-operative CT scans, the authors can also
discuss their practice of test clamping the gastro-duodenal artery prior to division
and its significance in (laparoscopic) pancreaticoduodenectomy. If hepatic hilar
pulsations disappear after test clamping the GDA, there are two possibilities 1.
there is a celiac artery stenosis/median arcuate ligament syndrome 2. the
common hepatic artery is mistaken for the GDA
Replaced left hepatic artery arising from the left gastric artery may not have any
direct relevance to pancreaticoduodenectomy
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