Journal of Anesthesia

, Volume 33, Issue 1, pp 103–107 | Cite as

Efficacy of abdominal peripheral nerve block and caudal block during robot-assisted laparoscopic surgery: a retrospective clinical study

  • Satoko NoguchiEmail author
  • Junichi Saito
  • Kishiko Nakai
  • Masato Kitayama
  • Kazuyoshi Hirota
Original Article



We retrospectively analyzed the efficacy of abdominal peripheral nerve block (PNB) and caudal block (CB) in patients undergoing robot-assisted laparoscopic radical prostatectomy (RARP).


Patients who underwent elective RARP at our hospital (Jan. 2015–Sept. 2016) were enrolled. We reviewed the 188 patients’ anesthesia charts and medical records and divided the patients into three groups based on the anesthesia used in their cases: 76 patients in the total intravenous anesthesia (TIVA) group, 51 patients in the TIVA + abdominal PNB group (TI-PB group), and 61 patients in the TIVA + abdominal PNB + CB (TI-PB-CB group). We compared the groups’ amounts of anesthetic drug usage, anesthesia times, and the presence/absence of additional opioid administration in the recovery room.


The perioperative opioid use during anesthesia was significantly greater in the TIVA group than in the TI-PB-CB group. The total amount of muscle relaxant was significantly higher (p < 0.001) in the TIVA group than the TI-PB-CB group: 60.0 (50.0–70.0) mg vs. 50.0 (40.0–60.0) mg. Although there were no significant differences in the operation time, the frequency of the use of additional opioid administration was significantly higher (p < 0.01) in the TIVA group than the TI-PB group: 23.7% vs. 2.0%, respectively.


Although there was no influence on the anesthesia time, the muscle relaxant dose and the perioperative amount of opioid use were significantly less in the combined PNB + CB group. Our analyses suggest that not only PNB but also CB was useful for perioperative management in RARP.

Clinical trial registration



Peripheral nerve block Caudal block Muscle relaxant Robotic surgery 


Compliance with ethical standards

Conflict of interest

The authors declare no conflicts of interest.


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Copyright information

© Japanese Society of Anesthesiologists 2018

Authors and Affiliations

  1. 1.Department of AnesthesiologyHirosaki University Graduate School of MedicineHirosakiJapan

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