European surgical research. Europäische chirurgische Forschung. Recherches chirurgicales européennes
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Randomized Controlled Trial Clinical Trial
The value of pre-emptive analgesia in the treatment of postoperative pain after laparoscopic cholecystectomy.
Postoperative pain is an important surgical problem. Recent studies in pain pathophysiology have led to the hypothesis that with pre-operative administration of analgesics (pre-emptive analgesia) it may be possible to prevent or reduce postoperative pain. This study was planned to investigate the efficacy of pre-emptive analgesia on postoperative pain after laparoscopic cholecystectomy. ⋯ Pre-emptive analgesia is as effective as postsurgical local anaesthesia in reducing postoperative pain.
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Randomized Controlled Trial Comparative Study Clinical Trial
Effects of dextran and crystalloids on subcutaneous oxygen tension and collagen accumulation. A randomized study in surgical patients.
Twenty-nine patients, subjected to major abdominal surgery, were randomized to different types of postoperative fluid replacement, given on the basis of subcutaneous oxygen tension measurements (PscO2). One regimen consisted of crystalloids, the other of a combination of crystalloids and colloids (dextran 70). Perioperative fluid replacement was given according to clinical criteria and postoperatively according to polarographic PscO2 measurements. ⋯ They were removed on day 5 and 7, and analysed for hydroxyproline content. Total postoperative fluid support was equal in the two groups, and so was the hydroxyproline content on day 7. In conclusion, postoperative fluid substitution with dextran has no advantages over crystalloids only, with regard to granulation tissue formation if postoperative fluid support is optimum, according to PscO2 measurements.
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Randomized Controlled Trial Clinical Trial
Transcutaneous electrical nerve stimulation for pain relief following inguinal hernia repair: a controlled trial.
The efficacy of transcutaneous electrical nerve stimulation (TENS) in relieving postoperative pain has been assessed by means of a prospective randomized controlled trial in 62 male patients undergoing unilateral inguinal herniorrhaphy. Thirty-four patients received TENS and 28 patients received sham TENS for 48 h after the operation. ⋯ We were unable to detect any significant differences in these variables when the two groups were compared. These results do not support the use of TENS.