June 2017
Volume 58, Issue 8
Open Access
ARVO Annual Meeting Abstract  |   June 2017
Effect of Trendelenburg positioning during Robot-assisted laparoscopic radical prostatectomy (RALP) on IOP and visual function
Author Affiliations & Notes
  • Yi-Ning Chen
    Ophthalmology and Vision Correction, The University of Tokyo Hospital, Tokyo, Japan
  • Fumiyuki Araki
    Ophthalmology and Vision Correction, The University of Tokyo Hospital, Tokyo, Japan
  • Yukako Taketani
    Ophthalmology and Vision Correction, The University of Tokyo Hospital, Tokyo, Japan
  • Yasuko Okagami
    Anesthesiology and Pain Relief Center, The University of Tokyo Hospital, Tokyo, Japan
  • Masaaki Asamoto
    Anesthesiology and Pain Relief Center, The University of Tokyo Hospital, Tokyo, Japan
  • Gaku Kawamura
    Anesthesiology and Pain Relief Center, The University of Tokyo Hospital, Tokyo, Japan
  • Nobuko Ito
    Anesthesiology and Pain Relief Center, The University of Tokyo Hospital, Tokyo, Japan
  • Shigenori Kakutani
    Anesthesiology and Pain Relief Center, The University of Tokyo Hospital, Tokyo, Japan
  • Hiroshi Fukuhara
    Urology and Andrology, The University of Tokyo Hospital, Tokyo, Japan
  • Makoto Aihara
    Ophthalmology and Vision Correction, The University of Tokyo Hospital, Tokyo, Japan
  • Footnotes
    Commercial Relationships   Yi-Ning Chen, None; Fumiyuki Araki, None; Yukako Taketani, None; Yasuko Okagami, None; Masaaki Asamoto, None; Gaku Kawamura, None; Nobuko Ito, None; Shigenori Kakutani, None; Hiroshi Fukuhara, None; Makoto Aihara, None
  • Footnotes
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Investigative Ophthalmology & Visual Science June 2017, Vol.58, 5335. doi:
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      Yi-Ning Chen, Fumiyuki Araki, Yukako Taketani, Yasuko Okagami, Masaaki Asamoto, Gaku Kawamura, Nobuko Ito, Shigenori Kakutani, Hiroshi Fukuhara, Makoto Aihara; Effect of Trendelenburg positioning during Robot-assisted laparoscopic radical prostatectomy (RALP) on IOP and visual function. Invest. Ophthalmol. Vis. Sci. 2017;58(8):5335.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose : To evaluate the effects of Trendelenburg positioning during RALP on IOP and visual function.

Methods : The study group consisted of 128 eyes from 64 male patients who underwent RALP at the University of Tokyo Hospital between December 2015 to October 2016. Best corrected visual acuity (BCVA), IOP, axial length measurement and Humphrey visual field analyzer (HFA) 30-2 program visual field testing were scheduled before and 1 week after surgery. Operation time and IOP change over time were also measured.

Results : The mean age is 66.3±5.3 year old. The average operation time was 3.6±1.0 hours. The IOP immediately after anesthesia induction was11.0±2.7mmHg (OD) and 11.0±2.8mmHg (OS). The highest IOP measured during operation was 24.4±4.5mmHg (OD) and 24.6±4.5mmHg (OS). Each was significantly elevated compared with that measured immediately after anesthesia induction, respectively (p<0.001). The increasing range of IOP during operation was neither correlative with operation time nor with axial length. There was no change between the preoperative and postoperative visual acuity. The MD (mean deviation) values of HFA including 15 glaucoma eyes of 9 patients revealed no post-operative MD value decrease more than 2 dB.

Conclusions : Trendelenburg positioning in RALP induced IOP elevation during operation but had no effect on post-operative visual function.

This is an abstract that was submitted for the 2017 ARVO Annual Meeting, held in Baltimore, MD, May 7-11, 2017.

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