Title: Comparison of operative outcomes between monopolar and bipolar coagulation in
hepatectomy: a propensity score-matched analysis in a single center
Version: 1 Date: 30 Jan 2022
Reviewer:  Fabio Melandro
Reviewer's report:
In this OA, the authors compared the outcome of hepatic resection performed by monopolar
and bipolar device, 104 patients using bipolar and 160 monopolar coagulation. To balance the
difference between two groups the authors opted to build PSM.
I have some concerns:
- I suggest to compare cases in the same period. I think that two eras of comparation are very
different in term of surgical management of hepatic cancer
- it is not clear the correlation between device and some complication. In particular:
is not clear as authors explain the correlation between device and ascites. In the discussion the
authors' purpose is not consistent
- I think that difference from 0 to 8,6 in CCI reported as total complication  is not a relevant
information in this paper
-the last aspect not clear in the discussion is the correlation between device and abdominal
infection and indeed the definition of abdominal infection.
For this manuscript I suggest major revision.
Title: Comparison of operative outcomes between monopolar and bipolar coagulation in
hepatectomy: a propensity score-matched analysis in a single center
Version: 1 Date: 30 Jan 2022
Reviewer:  Fabio Melandro
Reviewer's report:
In this OA, the authors compared the outcome of hepatic resection performed by monopolar
and bipolar device, 104 patients using bipolar and 160 monopolar coagulation. To balance the
difference between two groups the authors opted to build PSM.
I have some concerns:
- I suggest to compare cases in the same period. I think that two eras of comparation are very
different in term of surgical management of hepatic cancer
- it is not clear the correlation between device and some complication. In particular:
is not clear as authors explain the correlation between device and ascites. In the discussion the
authors' purpose is not consistent
- I think that difference from 0 to 8,6 in CCI reported as total complication  is not a relevant
information in this paper
-the last aspect not clear in the discussion is the correlation between device and abdominal
infection and indeed the definition of abdominal infection.
For this manuscript I suggest major revision.
Please review this paper.
user
Title: Comparison of operative outcomes between monopolar and bipolar coagulation in
hepatectomy: a propensity score-matched analysis in a single center
Version: 1 Date: 30 Jan 2022
Reviewer:  Fabio Melandro
Reviewer's report:
In this OA, the authors compared the outcome of hepatic resection performed by monopolar
and bipolar device, 104 patients using bipolar and 160 monopolar coagulation. To balance the
difference between two groups the authors opted to build PSM.
I have some concerns:
- I suggest to compare cases in the same period. I think that two eras of comparation are very
different in term of surgical management of hepatic cancer
- it is not clear the correlation between device and some complication. In particular:
is not clear as authors explain the correlation between device and ascites. In the discussion the
authors' purpose is not consistent
- I think that difference from 0 to 8,6 in CCI reported as total complication  is not a relevant
information in this paper
-the last aspect not clear in the discussion is the correlation between device and abdominal
infection and indeed the definition of abdominal infection.
For this manuscript I suggest major revision.
assistant