Title: Risk Factors for Adverse Events Associated with Endoscopic Retrograde
Cholangiopancreatography in Patients with Surgically Altered Anatomy: a Retrospective Study
Version: 1 Date: 15 Sep 2021
Reviewer's report:
Please mention limitations of this study, which are retrospective design, variations of patients/
reconstruction methods and variations of endoscopes.
Please discuss more about higher rate of pancreatitis, 9 patients in BII gastrectomy group.  What
are possible causes? and How to prevent?
In normal ERCP,  balloon dilatation without  sphincterotomy is the one of risk factor for
pancreatitis. Is it compatible with your study result?
Title: Risk Factors for Adverse Events Associated with Endoscopic Retrograde
Cholangiopancreatography in Patients with Surgically Altered Anatomy: a Retrospective Study
Version: 1 Date: 15 Sep 2021
Reviewer's report:
Please mention limitations of this study, which are retrospective design, variations of patients/
reconstruction methods and variations of endoscopes.
Please discuss more about higher rate of pancreatitis, 9 patients in BII gastrectomy group.  What
are possible causes? and How to prevent?
In normal ERCP,  balloon dilatation without  sphincterotomy is the one of risk factor for
pancreatitis. Is it compatible with your study result?
Please review this paper.
user
Title: Risk Factors for Adverse Events Associated with Endoscopic Retrograde
Cholangiopancreatography in Patients with Surgically Altered Anatomy: a Retrospective Study
Version: 1 Date: 15 Sep 2021
Reviewer's report:
Please mention limitations of this study, which are retrospective design, variations of patients/
reconstruction methods and variations of endoscopes.
Please discuss more about higher rate of pancreatitis, 9 patients in BII gastrectomy group.  What
are possible causes? and How to prevent?
In normal ERCP,  balloon dilatation without  sphincterotomy is the one of risk factor for
pancreatitis. Is it compatible with your study result?
assistant