Journal of Robotic Surgery

, Volume 13, Issue 2, pp 267–273 | Cite as

A randomised trial to compare the increase in intracranial pressure as correlated with the optic nerve sheath diameter during propofol versus sevoflurane-maintained anesthesia in robot-assisted laparoscopic pelvic surgery

  • Nambiath SujataEmail author
  • Raj Tobin
  • Ashwin Tamhankar
  • Gagan Gautam
  • Abdul Hamid Yatoo
Original Article


Robot-assisted surgery can cause raised intracranial pressures (ICP) due to steep trendelenburg position and pneumoperitoneum. The choice of anesthetic agents can influence the ICP, which can be measured indirectly by correlating it with the sonographically measured optic nerve sheath diameter (ONSD). In this study, our primary aim was to compare the change from baseline of the ONSD during propofol versus sevoflurane-maintained anesthesia in patients undergoing robotic pelvic surgery. In this prospective, interventional, double-blinded study, we randomised 50 patients into two groups P and S. Subjects in group P received intravenous propofol infusion while those in group S received inhalation sevoflurane for maintenance of anesthesia. The ONSD at fixed intervals was noted as the mean of four values measured using ultrasound in both eyes by two independent anesthesiologists who were blinded to the group allocation. The patient demographics and baseline parameters were similar. The mean maximum rise in ONSD from baseline was 0.01 ± 0.01 cm in group P while it was 0.03 ± 0.01 cm in group S (p = 0.001). Percentage change from baseline in group P was 3.41 ± 1.81% and 8.00 ± 2.95% in group S (p = 0.001). We found a positive correlation between the duration of surgery and the maximum rise in ONSD in group S (p = 0.003), but not in group P. Propofol-based total intravenous anesthesia is more effective than inhalation sevoflurane in attenuating the increase in ICP as correlated with the ONSD during robotic pelvic surgery.

Clinical trial registration: Yes; Principal investigator: Nambiath Sujata; Trial number: REF/2016/11/012713 (registered); Trial registry: CTRI—


Robotic surgery Anesthesia agent Optic nerve sheath diameter Intracranial pressure 



Ms. Parul Takkar Chugh, Department of statistics, Sir Ganga Ram Hospital, New Delhi, India for help in analysis and interpretation of data.



Compliance with ethical standards

Conflict of interest

All authors declare that they have no conflict of interest.


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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Anesthesia and Pain ManagementMax HospitalNew DelhiIndia
  2. 2.Department of Uro-OncologyMax HospitalNew DelhiIndia

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