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Canadian Anaesthetists’ Society Journal

, Volume 27, Issue 3, pp 274–278 | Cite as

Lumbar epidural anaesthesia and sensory profiles in term pregnant patients

  • Teruel de Campo
  • Maximo Macias-Loza
  • Harry Cohen
  • Anibal Galindo
Article

Abstract

Sensory profiles of lumbar epidural anaesthesia were studied in 57 patients during active labour. The local anaesthetics used were chloroprocaine three per cent with and without epinephrine, chloroprocaine two per cent, bupivacaine 0.25 per cent and a mixture of chloroprocaine three per cent and bupivacaine 0.5 per cent.

A common pattern of spread was found for all local anaesthetic solutions with the onset of the block affecting the dermatomes innervated by the thinnest nerve roots (T12L1). There was a percentage of failure to block the thickest nerve root (S1). Inguinal and suprapubic discomfort (“missing segment”) occurred when S1 was not blocked.

Under the conditions of this experiment, the addition of bupivacaine to chloroprocaine did not increase the duration of the blockade significantly.

Keywords

Bupivacaine Nerve Root Local Anaesthetic Solution Procaine Anaesthetic Solution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Résumé

Le profil sensoriel de ľanesthésie épidurale lombaire a été étudié chez 57 parturientes en travail. Les anesthésiques locaux utilisés ont été le chloroprocaïne 3 pour cent avec et sans épinéphrine, la chloroprocaïne 2 pour cent, la bupivacaine 0.25 pour cent et un mélange de chloroprocaïne 3 pour cent et de bupivacaïne 0.5 pour cent.

On a démontré pour routes les solutions ďanesthésiques locaux un schéma commun de propagation du bloquage avec une installation aux dermatomes innervés par les racines les plus fines (T12, L1). On a rencontré une proportion ďéchecs pour la racine la plus épaisse (S1). Une insuffisance de blocage de S1 a été ressentie sous forme de malaise aux régions inguinales et sus-pubiennes.

Lors de cette étude, ľaddition de bupivacaïne à la chloroprocaïne n’a augmenté la durée du blocage de façon significative.

References

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    Galindo, A. &Whitcher, T. Mixture of local anesthetics: bupivacaine-chloroprocaine. Anesthesiology51: S-213 (1979).Google Scholar

Copyright information

© Canadian Anesthesiologists 1980

Authors and Affiliations

  • Teruel de Campo
    • 1
    • 2
  • Maximo Macias-Loza
    • 1
    • 2
  • Harry Cohen
    • 1
    • 2
  • Anibal Galindo
    • 1
    • 2
  1. 1.Department of AnesthesiologyUniversity of Colorado Health Sciences CenterDenver
  2. 2.Department of AnesthesiologyUniversity of MiamiMiami

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