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Remifentanil provides better analgesia than alfentanil during breast biopsy surgery under monitored anesthesia care

Le rémifentanil fournit une meilleure analgésie que l’alfentanil pendant la biopsie mammaire réalisée sous surveillance anesthésique

Abstract

Purpose

To compare the analgesic effects of remifentanil and alfentanil during breast biopsy under monitored anesthesia care (MAC).

Methods

Sixty patients received sedation with propofol (50 μg· kg−1·min−1). After receiving a loading dose of opioid (either remifentanil 0.5 μg· kg−1, or alfentanil 2.5 μg· kg−1), an infusion was initiated (remifentanil 0.05 μg· kg−1· min−1 or alfentanil 0.25 μg· kg−1· min−1), and this was supplemented with local anesthetic infiltration. The pain was evaluated with aten-point visual analogue scale (VAS) during local anesthetic infiltration and deep tissue dissection. Inadequate analgesia, defined as VAS scores ≥ 5, was treated first with boluses of opioid (remifentanil group 10 μg or alfentanil group 50 μg) and if inadequate after two treatments with additional local anesthetic. Postoperative times were recorded including the times until discharge criteria were achieved and patient’s actual discharge.

Results

The pain scores were similar between the two groups during the initial injections of local anesthetic in the breast, however, patients in the remifentanil group had lower mean pain scores during deep tissue dissection (2.3vs 4.3,P < 0.01). Patients in the remifentanil group required fewer rescue doses of opioid (1.9 vs 3.6,P < 0.03) and local anesthetic (5 vs 15,P < 0.006). The two study groups had comparable speed of recovery.

Conclusion

Remifentanil was a better opioid choice than alfentanil for breast biopsy under MAC at the doses studied, but it did not increase the rapidity in which patients recovered postoperatively.

Résumé

Objectif

Comparer les effets analgésiques du rémifentanil et de l’alfentanil pendant la biopsie mammaire sous surveillance anesthésique (SA).

Méthode

Soixante patientes ont reçu une sédation avec du propofol (50 μg· kg−1· min−1). Après une dose de charge d’opioïde (soit le rémifentanil 0,5 )μg· kg−1 ou l’alfentanil 2,5 μg · kg−1), une perfusion a été amorcée (0,05 )μg · kg−1 · min−1 de rémifentanil ou 0,25 μg · kg−1· min−1 d’alfentanil) et complétée par une infiltration d’anesthésique local. La douleur a été évaluée avec une échelle visuelle analogique en dix points (EVA) pendant l’infiltration et la dissection des tissus profonds. L’analgésie incomplète, définie par un score ≥ 5 à l’EVA, a été traitée d’abord avec des bolus d’opioïde (10 μg de rémifentanil ou 50 μg d’alfentanil), puis avec un anesthésique local si l’analgésie était incomplète après deux doses. Après l’opération, nous avons noté le délai nécessaire à l’atteinte des critères de sortie et le temps réel avant la sortie des patientes.

Résultats

Les scores de douleur ont été similaires dans les deux groupes pendant les injections initiales d’anesthésique local dans le sein, quoique les patientes qui ont reçu le rémifentanil aient présenté des scores de douleur moyens plus bas pendant la dissection tissulaire (2,3 vs 4,3, P < 0,01). Les patientes sous rémifentanil ont demandé moins d’opioïde de secours (1,9 vs 3,6, P < 0,03) et d’anesthésique local (5 vs 15, P < 0,006). Les temps de récupération ont été comparables entre les groupes.

Conclusion

Le choix du rémifentanil s’est révélé meilleur que celui de l’alfentanil pour la biopsie mammaire sous SA aux doses étudiées, mais n’a pas raccourci la récupération postopératoire.

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Correspondence to John A. Dilger.

Additional information

This work has been performed at the Cleveland Clinic Foundation.

Funding: This work has been funded by the Departmental funds at the Cleveland Clinic Foundation.

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Dilger, J.A., Sprung, J., Maurer, W. et al. Remifentanil provides better analgesia than alfentanil during breast biopsy surgery under monitored anesthesia care. Can J Anesth 51, 20–24 (2004). https://doi.org/10.1007/BF03018541

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Keywords

  • Remifentanil
  • Visual Analogue Scale Score
  • Alfentanil
  • Shock Wave Lithotripsy
  • Breast Biopsy