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Key steps of complex robotic liver surgery: an international expert survey

  • Noa L.E. Aegerter
  • , Christoph Kuemmerli
  • , Complex Robotic Liver Surgery Group
  • , Felix Nickel
  • , Cristiano Guidetti
  • , Christoph Tschuor
  • , Victor Lopez-Lopez
  • , Taiga Wakabayashi
  • , Philipp Dutkowski
  • , Adrian T. Billeter
  • , Beat P. Müller
  • , Philip C. Müller*
  • *Corresponding author for this work
  • Clarunis University Digestive Health Care Center Basel
  • Erasmus University Rotterdam
  • University Medical Center Hamburg-Eppendorf
  • University of Modena and Reggio Emilia
  • Rigshospitalet
  • Hospital Virgen de la Arrixaca
  • Keio University School of Medicine
  • Ageo Central General Hospital

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)
6 Downloads (Pure)

Abstract

Background: 

Robotic liver surgery (RLS) has become the preferred minimally invasive approach for liver surgery. However, especially for complex RLS (C-RLS), key surgical steps such as preoperative preparation, intraoperative techniques, and training are often center-dependent and not standardized. The aim of this survey was to assess the international practice of key surgical steps during C-RLS among expert centers. 

Methods:

A cross-sectional survey was conducted among robotic liver surgeons with a minimum individual experience of 50 RLS to assess their practice during C-RLS. The survey consisted of 50 questions, distributed across three sections: training, preoperative planning, and intraoperative practice for C-RLS.

Results: 

60 out of 71 experts completed the survey, corresponding to an 85% response rate. 73% of the experts agreed that the IWATE difficulty score represents an adequate classification system to define C-RLS. A prerequisite before performing C-RLS was experience in complex open liver surgery (71%) and expertise in low and intermediate RLS (75%). Mentoring by a more experienced surgeon was deemed necessary by most experts (90%) when performing C-RLS. Vascular inflow control was mentioned to often be performed during parenchyma transection either selectively (38%) or routinely (52%). Most experts considered pre- or intraoperative positive staining helpful (57%), while negative staining (85%) was reported as even more important in C-RLS. For vasculo-biliary transection, experts preferred an intrafascial (45%), glissonian pedicle approach (33%) or a case-dependent transection (12%). For parenchymal transection, the preferred instruments were laparoscopic CUSA (92%), harmonic ACE (78%), and SynchroSeal (77%).

Conclusion: 

This expert survey reveals current international practices for preoperative preparation, training, and intraoperative key steps of C-RLS. Prospective validation of the key steps would be useful for correlating clinical outcomes with current practice.

Original languageEnglish
Pages (from-to)6692-6701
Number of pages10
JournalSurgical Endoscopy
Volume39
Issue number10
DOIs
Publication statusPublished - Oct 2025

Bibliographical note

Publisher Copyright:
© The Author(s) 2025.

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