REVISTA

Lidocaína intratesticular en la castración de perros

Valoración Valoración: 3 Estrellas

Descripción: La lidocaína intratesticular mejora la analgesia intraquirúrgica en la castración de perros.

TITULO FUENTE ORIGINAL:

Intratesticular lidocaine reduces the response to surgical castration in dogs

AUTORES:

Huuskonen V, Hughes JM, Estaca Bañon E, West E.

REVISTA ABREV.:

Vet Anaesth Analg.

AÑO:

2013

REFERENCIA:

Jan;40(1):74-82.

DOI:

10.1111/j.1467-2995.2012.00775.x.

FECHA DE PUBLICACIÓN:

01/01/2013

RESUMEN ORIGINAL:

OBJECTIVE:
To investigate whether intratesticular injection of lidocaine pre-surgery would reduce the intraoperative responses to elective castration in dogs.
STUDY DESIGN:
Double-blinded, randomized, controlled, prospective clinical study.
ANIMALS:
Forty-two client-owned dogs weighing...
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OBJECTIVE:
To investigate whether intratesticular injection of lidocaine pre-surgery would reduce the intraoperative responses to elective castration in dogs.
STUDY DESIGN:
Double-blinded, randomized, controlled, prospective clinical study.
ANIMALS:
Forty-two client-owned dogs weighing 2.2-38.4 kg and aged between 4.5 and 56 months.
METHODS:
Group L dogs received an intratesticular injection of 2% lidocaine (2 mg kg(-1)) and Group S an identical volume of saline prior to surgery. Premedication was with acepromazine and morphine intramuscularly. Anaesthesia was induced with propofol intravenously and maintained with isoflurane vaporized in oxygen. Heart rate (HR), mean arterial pressure (MAP), respiratory rate (f(R)), end-tidal isoflurane (Fe'ISO) and carbon dioxide concentrations, oxygen saturation and ECG were monitored during surgery. Fe'ISO was maintained at 1.0±0.1%. Supplemental propofol was given in response to gross movement.
RESULTS:
Group L had significantly lower maximum values for both HR and MAP. Group L displayed significantly smaller increases in HR during exteriorization of the first testis than Group S. There was an overall significant difference in MAP between groups during all surgical events (p=0.041) and time points (p=0.002). In univariate analysis, Group L showed significantly less changes in MAP during skin incision, exteriorization of the first testis and clamping of both spermatic cords. Group S reached its highest f(R) significantly earlier. Group L (eight dogs) required additional propofol 33±18 minutes after the start of surgery and Group S (seven dogs) at 19±17 minutes; this difference was not statistically significant. Seven dogs in Group L and 12 dogs in Group S required rescue analgesia with morphine (GCMPS-SF score ≥6); this difference was not statistically significant. No adverse effects were reported postoperatively.
CONCLUSIONS AND CLINICAL RELEVANCE:
Based on this study, the authors recommend the use of intratesticular lidocaine for surgical castration in dogs.

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COMENTARIO DE Delia, Aguado Domínguez
Este estudio clinico prospectivo valora la eficacia de una técnica de analgesia locoregional tan sencilla de realizar, segura y barata como es la administración de lidocaina intratesticular en perros sometidos a orquiectomia. Emplearon 42 perros de diferentes razas, pesos y edades que iban a ser sometidos a una castración voluntaria. + Leer más

Este estudio clinico prospectivo valora la eficacia de una técnica de analgesia locoregional tan sencilla de realizar, segura y barata como es la administración de lidocaina intratesticular en perros sometidos a orquiectomia. Emplearon 42 perros de diferentes razas, pesos y edades que iban a ser sometidos a una castración voluntaria.

Los perros se premedicacaban con acepromacina y morfina, eran inducidos con porpofol y mantenidos con anestesia inhalatoria con isofluorano. En el grupo de analgésicos se administraba 2 mg/kg de lidocaina al 2% intratesticular antes de la cirugia mientras que el grupo control recibía el mismo volumen de salino. Para valorar su eficacia monitorizaban los cambios cardiorespiratorios (frecuencia cardiaca y respiratoria o presión arterial ), la presencia de movimiento o el uso de analgesia de rescate.Los perros que llevaban lidocaina experimentaron menores cambios en la frecuencia cardiaca y/o presión arterial durante la cirugía y especialmente durante la incición en piel, la exteriorización del primer testiculo y le clampaje de los conductos espermáticos.

Por lo tanto, sería recomendable implementar esta técnica analgésica en nuestro protocolos anestésicos para la realización de orquiectomias.

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