Abstract
Introduction
Robotic radical prostatectomy requires prolonged pneumoperitoneum and a steep Trendelenburg position. Magnesium can attenuate the stress response and hemodynamic perturbations. This study aimed to evaluate the effects of intravenous magnesium administration on hemodynamics and the stress response in patients undergoing robotic radical prostatectomy.
Methods
In this prospective, double-blind, randomized controlled study, 52 patients undergoing robotic radical prostatectomy were randomized into two groups: 26 in the magnesium group and 26 in the control group. The patients in the magnesium group received magnesium sulfate 50 mg/kg intravenously, followed by infusion at a rate of 10 mg/kg/h during surgery. The patients in the control group received an equal volume of 0.9% saline. The primary outcomes were the changes in heart rate and mean arterial pressure (MAP) during surgery. The serum stress hormones (adrenocorticotropic hormone, cortisol, epinephrine, and norepinephrine) were also measured.
Results
MAP showed a significant intergroup difference over time (Pgroup*time = 0.017); it increased significantly at 5 min after Trendelenburg position in the control group and decreased significantly at 30 min after Trendelenburg position in the magnesium group. The intergroup difference in the change in cortisol concentrations was significant over time (Pgroup*time = 0.006). The cortisol concentration decreased significantly from baseline to 24 h after surgery in the magnesium group but did not change significantly in the control group. The requirement for intraoperative remifentanil was 35% lower in the magnesium group (P = 0.011), and the severity of postoperative pain at 30 min and 6 h after surgery was also lower in the magnesium group (P = 0.024 and P = 0.015).
Conclusion
There is a possibility that intravenous magnesium administration during robotic radical prostatectomy reduces the increases in arterial pressure, cortisol concentrations, opioid requirements, and postoperative pain.
Trial Registration
ClinicalTrials.gov identifier, NCT02833038
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Acknowledgements
The authors thank the participants and participating staff for their cooperation in the study.
Funding
This study and the Rapid Service Fee were sponsored by the new faculty research fund of Ajou University School of Medicine, Suwon, South Korea.
Authorship
All named authors meet the International Committee of Medical Journal Editors (ICMJE) criteria for authorship for this article, take responsibility for the integrity of the work as a whole, and have given their approval for this version to be published.
Disclosures
Ha Yeon Kim, Sook Young Lee, Hye Sun Lee, Bo Kyeong Jun, Jong Bum Choi, and Ji Eun Kim have nothing to disclose.
Compliance with Ethics Guidelines
The study protocol was approved by the Institutional Review Board of Ajou University School of Medicine. The study was performed in accordance with the Declaration of Helsinki of 1964 and its later amendments. Written informed consent was obtained from all study participants prior to participation.
Data Availability
The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
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Kim, H.Y., Lee, S.Y., Lee, H.S. et al. Beneficial Effects of Intravenous Magnesium Administration During Robotic Radical Prostatectomy: A Randomized Controlled Trial. Adv Ther 38, 1701–1712 (2021). https://doi.org/10.1007/s12325-021-01643-8
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DOI: https://doi.org/10.1007/s12325-021-01643-8