Abstract
We have studied the effect of surgical injury on cutaneous sensitivity and somatosensory evoked potentials (SSEP) to dermatomal electrical stimulation in 10 patients undergoing hysterectomy. Forty-eight hours after surgery, sensory threshold increased from 2.2 (SEM 0.3) mA to 4.4 (1.1) mA (P less than 0.01) and SSEP amplitudes in P1, N1, P2 and the peak-to-peak amplitudes decreased (P less than 0.05). Latency was prolonged only in the N3 component (P less than 0.05). No changes were seen in threshold and SSEP in a control group studied over the same interval. The results suggest that surgical injury activates antinociceptive modulatory systems.
| Bidragets oversatte titel | Effect of surgery on sensory threshold and somatosensory evoked potentials after skin stimulation. |
|---|---|
| Originalsprog | Engelsk |
| Tidsskrift | British Journal of Anaesthesia |
| Vol/bind | 65 |
| Udgave nummer | 2 |
| Sider (fra-til) | 173-176 |
| Antal sider | 4 |
| ISSN | 0007-0912 |
| Status | Udgivet - 1990 |