Anaesthesia
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During a period of one year, 119 patients with chronic pain received injections of opioids via a catheter inserted in the lumbar epidural space. Twenty-three patients (19%) showed evidence of tolerance and were given droperidol 1.25-5.0 mg epidurally. ⋯ One patient given an accidental overdose of droperidol developed reversible Parkinsonism. It is concluded that epidural administration of the dopamine antagonist droperidol may be beneficial as supplementary medication to epidural opioids when tolerance develops.
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Comparative Study
Ilioinguinal nerve block in children. A comparison with caudal block for intra and postoperative analgesia.
Fifty-two boys undergoing herniotomy, orchidopexy or ligation of patent processus vaginalis under general anaesthesia had supplementary analgesia; 26 had a caudal epidural block and 26 an ilioinguinal block. Analgesia was assessed both during and after surgery. Ilioinguinal block provides a useful alternative to caudal block.
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The distribution of paraesthesiae evoked by a low power nerve stimulator during performance of supraclavicular brachial plexus block was studied in 120 patients. Evoked paraesthesiae in the distribution of the median nerve was associated with a significant improvement in effectiveness of the block when compared with evoked paraesthesiae in the ulnar and radial distributions. A possible explanation for this finding is proposed.
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To compare postoperative well-being after general and epidural anaesthesia, 58 women undergoing Caesarean section were divided into a general anaesthetic group receiving intramuscular opioid postoperatively (26), and an epidural group receiving morphine via the epidural route (32). The epidural group required less analgesia (p less than 0.01 at 0.5 and 8 hours, p less than 0.001 at 4 hours). There was no difference in the use of oral analgesics. ⋯ More in the epidural group had a very good night's sleep during each night studied. Patients in the epidural group were slower to use the ward toilet (p less than 0.01) and had more itching (p less than 0.001). Our conclusion is that patients progressed well in both groups.