ABSTRACT
Objective To establish Beagle dogs’model of abducens nerves injury and to observe the clinical therapeu?tic effect of electroacupuncture treatment. Methods Twenty-four Beagle dogs were randomly divided into simple crush group (control group) and crush with electrical stimulation group (experimental group). Cisternal segment of the abducens nerve was given a crush injury, then electrodes were implanted to stimulate the abducens nerve and lateral rectus muscle. Distance between the center of the pupil to medial margin of extraocular adjoin was measured from 1 to 12 weeks after opera?tions. Results All procedures used in the study were well tolerated by Beagle dogs. Electrode implantation to stimulate the lateral rectus muscle and the abducens nerve behind of cavemous sinus was successful. There was no statistical significance of the distance between the two groups from 1 to 2 weeks after operations, and the distance was shorter in experimental group than that in control group from 4 to 12 weeks after operations (P<0.01). Conclusion The animal models established to study electroacupuncture treatment of the injured abducens nerves was successful. Electroacupuncture can promote the re?covery of the injured abducens nerves obviously.
ABSTRACT
Inflammatory pseudotumors are benign tumors rarely that occurs in the head and neck. We present the case of a 39-year-old man presenting extraocular muscle palsy with inflammatory pseudotumor affecting the temporal bone including mastoid, middle ear and petrosal apex. At computed tomography and magnetic resonance imaging (MRI) scan, the lesion appeared as an enhancing mass of soft tissue occupying the majority of the mastoid bone and petrosal apex causing diplopia. The patient was treated with conservative surgical excision (a open cavity mastoidectomy and tympanoplasty) and postoperative steroid therapy. Microscopic examination showed predominantly mature plasma cells. The patient remains free of disease 8 months after treatment. We believe this is the first case report of inflammatory pseudotumor affecting the middle ear and mastoid involving the petrous apex.