Bloqueo Interescalénico Continuo: Bupivacaina 0,125% Versus 0,0625% para Manejo del Dolor Postoperatorio en la Cirugía Mayor de Hombro Asistida por Artroscopía: Publicado Originalmente en la Revista El Dolor Nº 51 26-31; 2009.

Víctor Contreras; Paulina Carbonell; Álvaro Ojeda; Aníbal Elgueta; Edgardo Sanzana

doi:10.47924/neurotarget2011283

Authors

Víctor Contreras Regional Clinical Hospital of Concepción, Chile.
Paulina Carbonell Traumatological Hospital of Concepción, Chile.
Álvaro Ojeda Faculty of Medicine, University of Concepción, Chile.
Aníbal Elgueta Faculty of Medicine, University of Concepción, Chile.
Edgardo Sanzana Faculty of Medicine, University of Concepción, Chile.

DOI:

https://doi.org/10.47924/neurotarget2011283

Keywords:

Postoperative analgesia, Continuous interscalene plexus block, rotator cuff repair, bupivacaine consumption

Abstract

Introduction: Continuous Interscalenic Block (CIB) is used for postoperative analgesia in major shoulder surgery with good results, with advantages over other local, regional or intravenous analgesia techniques.
Objective: The objective of this study was to clinically evaluate the usefulnes of two concentrations of bupivacaine associated to sufentanyl in CIB for postoperative analgesia after rotator cuff repair (RCR).
Patients and Methods: Randomized clinical prospective study including 43 patients ASA I and II. Stable patients were divided into 2 groups. Group 1 (n=21): continuous infusion (CI) 7 ml/hr bupivacaine 0.125% associated with sufentanil 1 μg/ml and Group 2 (n=22): 7 ml/hr bupivacaine 0.0625% associated with sufentanil 1 μg/ml. Surgery was performed under general anesthesia. Postoperative pain was managed with intravenous morphine PCA. Postoperative pain was recorded at 2, 4, 6, 24, 36 and 48 hours after surgery using Visual Analog Scale (VAS). Morphine and bupivacaine consumption, Satisfaction Score and complications are recorded.
Results: No differences in demographics data were found between the two groups. The postoperative VAS between 4 and 48 hours, morphine consumption, levels of satisfaction and incidence of complications are not different in the two groups. The consumption of bupivacaine is reduced in the B 0.0625% group (p< 0.005).
Conclusions: The CIB with bupivacaine and sufentanil in continuous infusion at rate of 7 ml/hr provides efficient analgesia after RCR. Patient shows a high level of satisfaction that is associated to a significantly less consumption of intravenous morphine. Bupivacaine consumption is lower in the B 0.0625% group.

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