DOI
https://doi.org/10.18849/ve.v3i4.206Abstract
PICO question
In dogs undergoing orchiectomy, does the use of intratesticular blocks reduce the pain in patients compared to not using intratesticular blocks?
Clinical bottom line
Low level of evidence suggests that when compared to a pre-medication with pure-µ agonist opioids, intratesticular blocks do not appear to provide significant benefit. However, based on our clinical scenario where pre-medication is with a partial-µ opioid like buprenorphine, there may be benefit in utilising intratesticular lidocaine or bupivicaine.
References
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McMillan, M. W., Seymour, C. J. and Brearley, J. C. (2012) ‘Effect of intratesticular lidocaine on isoflurane requirements in dogs undergoing routine castration’, Journal of Small Animal Practice, 53(7), pp. 393–397. doi: http://dx.doi.org/10.1111/j.1748-5827.2012.01233.x
Perez, T. E. et al. (2013) ‘Effects of intratesticular injection of bupivacaine and epidural administration of morphine in dogs undergoing castration’, Journal of the American Veterinary Medical Association, 242(5), pp. 631–642. doi: http://dx.doi.org/10.2460/javma.242.5.631
Rodriguez, A. R. Á., Gaviria, E. F. B. and Bonilla, D. F. E. (2016) ‘Evaluación del efecto analgésico de la lidocaína vía intratesticular o intrafunicular en perros sometidos a orquiectomia electiva bajo un protocolo de anestesia disociativa’, Revista Electrónica de Veterinaria. Veterinaria Organización, 17(9), pp. 1–16.
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Stevens, B. J. et al. (2013) ‘Comparison of the effect of intratesticular lidocaine/bupivacaine vs. saline placebo on pain scores and incision site reactions in dogs undergoing routine castration’, The Veterinary Journal, 196(3), pp. 499–503. doi: http://dx.doi.org/10.1016/j.tvjl.2012.11.019
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