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Ultrasound-guided Perineural Analgesia of the Maxillary Nerve Within the Pterygopalatine Fossa

Author(s):

Goliszek J., Anghileri B. and Bowen...

In: BEVA - Annual Congress - Manchester, 2013 by British Equine Veterinary Association
Updated:
SEP 14, 2013
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Introduction: Maxillary nerve analgesia is used for dental and sinus surgeries and for the investigation of headshaking. Complications include extra-periorbital haematoma formation leading to exophthalmos. 

Aims: To determine ultrasonographic anatomy of the pterygopalatine fossa in order to develop an ultrasound-guided technique for anaesthetising the maxillary nerve and caudal nasal nerve branches for horses presenting with dental disease or headshaking.

Methods: Two-dimensional and Doppler ultrasound images were obtained of the pterygopalatine fossa of 6 normal horses to evaluate its appearance and identify the neurovascular bundle. The technique was subsequently used for ultrasound-guided perineural analgesia in 8 horses to facilitate dental or sinus surgery (n = 7) or to investigate horses with headshaking. [...]

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