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Related Experiment Video

Updated: May 16, 2026

Retzius-Sparing Robot-Assisted Radical Prostatectomy
12:10

Retzius-Sparing Robot-Assisted Radical Prostatectomy

Published on: May 19, 2022

Hemodynamic changes during robotic radical prostatectomy.

Vanlal Darlong1, Nishad Poolayullathil Kunhabdulla, Ravindra Pandey

  • 1Department of Anaesthesiology and Intensive Care, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India.

Saudi Journal of Anaesthesia
|November 20, 2012
PubMed
Summary
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Robot-assisted radical prostatectomy in steep Trendelenburg position with high-pressure CO(2) pneumoperitoneum significantly reduces stroke volume and cardiac output. Hemodynamic monitoring is crucial during this procedure.

Area of Science:

  • Anesthesiology
  • Cardiovascular Physiology
  • Surgical Navigation

Background:

  • Limited data exists on hemodynamic effects of steep Trendelenburg positioning during robot-assisted laparoscopic radical prostatectomy (RALRP).
  • High-pressure carbon dioxide (CO(2)) pneumoperitoneum further complicates understanding of these effects.

Purpose of the Study:

  • To prospectively evaluate the impact of steep Trendelenburg position (45°) with high-pressure CO(2) pneumoperitoneum on hemodynamic parameters during RALRP.
  • To assess changes in cardiac output, stroke volume, and other vital signs using advanced monitoring.

Main Methods:

  • A prospective trial involving 15 patients undergoing RALRP.
  • Continuous hemodynamic monitoring including stroke volume (SV), cardiac output (CO), and central venous pressure (CVP) using FloTrac/Vigileo™.
Keywords:
Flotrac/vigileo™hemodynamic changespneumoperitoneumsteep trendelenburg position

Related Experiment Videos

Last Updated: May 16, 2026

Retzius-Sparing Robot-Assisted Radical Prostatectomy
12:10

Retzius-Sparing Robot-Assisted Radical Prostatectomy

Published on: May 19, 2022

  • Measurements taken at baseline, after pneumoperitoneum, and during 45° Trendelenburg positioning.

    • Main Results:

    • Significant decreases in heart rate (HR), SV, CO, and cardiac index (CI) were observed post-induction and after pneumoperitoneum.
    • CO and CI remained persistently low during the 45° Trendelenburg position (P=0.001).
    • Central venous pressure (CVP) increased significantly, while stroke volume variation (SVV) and central venous oxygen saturation (ScvO(2)) showed no significant changes.

    Conclusions:

    • Steep Trendelenburg position combined with CO(2) pneumoperitoneum during RALRP causes significant reductions in stroke volume and cardiac output.
    • These findings underscore the importance of vigilant hemodynamic monitoring in patients undergoing this surgical approach.