European surgical research. Europäische chirurgische Forschung. Recherches chirurgicales européennes
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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.
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A controversy still exists on whether the liver changes to a lactate producer during hemorrhagic shock. Considerable disagreement has been reported on the question whether crystalloids or colloids should be used when treating hemorrhagic shock. ⋯ The liver did not seem to produce lactate at any stage of the shock level, but during early retransfusion it changed transiently to a lactate producer. Later during the resuscitation period, the correction of arterial hypotension seemed to be unstable and the correction of acidosis incomplete after crystalloid infusion compared to transfusion or colloid substitution.