Search results for "Geminal"
showing 10 items of 113 documents
Trigeminal Neuralgia and Cerebellopontine‐Angle Lipoma in a Child
2001
Trigeminal neuralgia and cerebellopontine-angle lipomas are very rare in children. We describe the history and findings of an 8-year-old boy with right trigeminal neuralgia and a lipoma detected by magnetic resonance imaging at the level of the root-entry zone of the right seventh cranial nerve. We propose a possible mechanism of infiltration of the trigeminal rootlets by the lipoma.
Correlation of virus replication, cytokine (TNF-? and IL-1) producing cells, neuronal necrosis and inflammation after intranasal infection of mice wi…
1995
The number of TNF-alpha and IL-1 beta producing cells was investigated during the acute replication phase of herpes simplex virus (HSV) in trigeminal ganglia after intranasal infection with strains of different virulence. The highly virulent strain WAL replicated strongly and induced many cytokine producing cells early in the ganglia. The low virulent strain HFEM replicated less, only few cytokine producing cells were detected late. The thymidine-kinase negative (TK-) virus 1301 did not replicate but produced some lymphocytic inflammation. The higher the virulence of strains of HSV-1 or -2 was, the stronger was the extent of histopathological lesions; moreover, a dissociation in time betwee…
Substance P- and calcitonin gene-related peptide-like immunoreactive neurons in the rat trigeminal ganglion — with special reference to meningeal and…
1992
Summary The distribution of perikarya showing substance P- ( SP ) or calcitonin gene-related peptide-like inununoreactivity ( CGRP-LI ) in the rat trigeminal ganglion ( TG ) were investigated by means of immunohistochemical methods. Approximately 50% of the perikarya contain CGRP while SP-Ll was observed in 1/3 of the cells. IR fibres were seen to leave the ganglion via the ophtalmic, maxillary, and mandibular nerves. The combination of peptide histochemistry and retrograde labelling of cells in the ganglion following injection of a fluorescent tracer into the pineal gland reveals that few SP- or CGRP-LI trigeminal neurons innervate the pineal gland. In contrast, the vast majority of perika…
A painful tic convulsif due to double neurovascular impingement
2011
Here we present the case of a 50-year-old man suffering from "painful tic convulsif", on the left side of the face, i.e., left trigeminal neuralgia associated with ipsilateral hemifacial spasm. An angio-MRI scan showed a neurovascular confliction of left superior cerebellar artery with the ipsilateral V cranial nerve and of the left inferior cerebellar artery with the ipsilateral VII cranial nerve. Neurophysiological evaluation through esteroceptive blink reflex showed the involvement of left facial nerve. An initial carbamazepine treatment (800 mg/daily) was completely ineffective, so the patient was shifted to lamotrigine 50 b.i.d. that was able to reduce attacks from 4 to 6 times per day…
PE-11, a peptide derived from chromogranin B, in the rat eye.
2010
The aim of the study was to investigate the presence and distribution of PE-11, a peptide derived from chromogranin B, in the rat eye. For this purpose, newborn rats were injected with a single dosage of 50mg/kg capsaicin subcutaneously under the neck fold and after three months, particular eye tissues were dissected and the concentration of PE-11-like immunoreactivity was determined by radioimmunoassay. Furthermore, PE-11-like immunoreactivities were characterized in an extract of the rat eye by reversed phase HPLC. Then, the distribution pattern of PE-11 was investigated in the rat eye and rat trigeminal ganglion by immunofluorescence. As a result, PE-11 was present in each tissue of the …
Different forms of trigeminal autonomic cephalalgias in the same patient: description of a case.
2010
The trigeminal autonomic cephalalgias (TACs), including cluster headache, paroxysmal hemicrania and SUNCT, are characterized by the cardinal combination of short-lasting unilateral pain and autonomic phenomena affecting the head. Hemicrania continua (HC) shares many clinical characteristics with TACs, including unilateral pain and ipsilateral autonomic features. Nevertheless, HC is separately classified in the revised International Classification of Headache Disorders (ICHD-II). Here, we describe the case of a 45-year-old man presenting an unusual concurrence of different forms of primary headaches associated with autonomic signs, including subsequently ipsilateral cluster headache, SUNCT a…
Indication and technique for the reconstruction of nerve defects in head and neck.
1974
Summary Although the results of peripheral nerve repair have been greatly improved in the last years following the introduction of microsurgery and increased application of free autologous nerve transplants, the use of restorative neuroplasty in maxillofacial surgery has been limited. Prompted by the successful reports on modern neuroplasty, we have introduced the use of autologous nerve transplant to bridge lesions of various cranial nerves. Our experience is based on the treatment of traumatic and tumour-induced defects of the facial nerve, inferior alveolar nerve, accessory and lingual nerve. The anastomosis of nerve was accomplished exclusively under the surgical microscope and microsur…
Red ear syndrome in children: Review of literature and report of three cases
2020
Abstract Background Red ear syndrome (RES) is a neurological syndrome that is characterized by attacks of redness and pain that is localized in the earlobe, accompanied by a burning sensation, swelling or otalgia. The exact pathophysiology of RES is not known. Several pediatric cases have been described. They show an extreme variability in clinical presentation and therapeutic response, and therefore there are numerous difficulties in the diagnostic-therapeutic approach and in the comprehension of the physiopathology. The goal of this report is to present three clinical cases of red ear syndrome in children. These cases show various characteristics that can give useful indications regarding…
Conventional radiofrequency treatment in five patients with trigeminal neuralgia
2010
Introduction: In trigeminal neuralgia, when drug treatment proves ineffective, other management options must be considered. In this context, conventional radiofrequency of Gasser’s ganglion is a safe and effective alternative. Material and Methods: We describe 5 patients with long-evolving trigeminal neuralgia subjected to conventional radiofrequency according to the Sweet technique, with a follow-up of two years. Results: Pain relief was complete after two months in all cases. One patient suffered an unexpected episode of nausea, vomiting and foul odor sensation that subsided after three days of rest and drug treatment. Three patients described non-painful hypoesthesia in the region of the…
Temporal retrogasserian resection of trigeminal root versus controlled elective percutaneous electrocoagulation of the ganglion of gasser in the trea…
1972
In his experience with 531 surgical procedures for the relief of trigeminal neuralgia between 1955 to 1970, the author developed a strong preference for the percutaneous electro-coagulation of the gasserian ganglion. Although the method was repeatedly modified in the early years, a standardized technique of controlled, selective and fractional coagulation in the semiawake state of neurolept-anaesthesia was used since 1963 in 183 of his 311 patients, treated in this manner. The advantages of the method, particularly in comparison to open intracranial root sections, are: Minimal operative risk, control of operative effect during the operation, small sensibility deficit, low rate of complicati…