[Electrical point stimulation (P-STIM) via ear acupuncture: a randomized, double-blind, controlled pilot study in patients undergoing laparoscopic nephrctomyX]

Schmerz. 2007 Apr;21(2):154-9. doi: 10.1007/s00482-006-0519-y.
[Article in German]


Aim: The aim of this study was to determine whether P-STIM-verum in patients undergoing laparoscopic nephrectomies resulted in a lower consumption of analgesics and an improvement of pain scores compared with P-STIM-placebo when administered for acute peri- and postperative pain.

Methods: The study was carried out in a double-blind, randomized, controlled manner. Forty-four patients were randomised into 2 groups. The P-STIM device was applied to each patient 30 minutes pro-operatively. The Stimulation was applied over 96 hours. The P-STIM-verum group received subthreshold stimulation. The P-STIM-placebo group received no stimulation. Premedication and anaesthesia were applied in a standardised fashion. The efficacy of treatment was evaluated using a postoperative visual analogue scale (at rest and on exertion) and by dermining postoperative analgesic consumption.

Results: The P-STIM-verum group demonstrated better visual analogue at rest and on exertion then the P-STIM-placebo group. The postoperative consumption of morphine-hydrochloride in the first 6 h significantly less in the P-STIM-verum group. The time of first analgesic request was significantly later in the P-STIM-verum group compared with the P-STIM-placebo group.

Conclusions: In this study we were able to demonstrate, that pre- and postoperative P-STIM applied in patients undergoing laparoscopic nephrectomies seems to be an effective, simply applied method with few side-effects for reducing pain and postoperative analgesic consumption.

Publication types

  • English Abstract
  • Randomized Controlled Trial

MeSH terms

  • Acupuncture Therapy / methods*
  • Aged
  • Aged, 80 and over
  • Analgesics / therapeutic use
  • Double-Blind Method
  • Ear*
  • Electrochemistry / methods*
  • Female
  • Humans
  • Laparoscopy
  • Male
  • Nephrectomy*
  • Pain, Postoperative / therapy*
  • Pilot Projects


  • Analgesics