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1.
Prensa méd. argent ; 108(2): 94-100, 20220000. fig, tab
Article in Spanish | LILACS | ID: biblio-1368454

ABSTRACT

El schwannoma es una patología rara del nervio facial. Su diagnóstico preoperatorio es dificultoso dado que no tiene síntomas ni signos patognomónico de la enfermedad. La disección del nervio facial en su tronco y sus ramas con electroestimulacion es la forma de quirúrgica de sospecharlo intraoperatoriamente. La descompresión parcial o exeresis completa deberá ser considerado de acuerdo a la experiencia del equipo quirúrgico en reconstrucción nerviosa. La reparación del nervio facial como primera opción debe el injerto inmediato o sutura termino terminal. La neurotización es un procedimiento quirúrgico que le provoca al paciente simetría facial con manejo de oclusión ocular y manejo de comisura bucal, debe ser realizado antes del año de la injuria nerviosa. La rehabilitación del nervio facial necesita de un equipo multidisciplinario y la colaboración permanente del paciente para conseguir los objetivos propuestos.


Schwannoma is a rare pathology of the facial nerve. Its preoperative diagnosis is difficult since it has no symptoms or pathognomonic signs of the disease. The dissection of the facial nerve in its trunk and its branches with electrostimulation is the surgical way to suspect it intraoperatively. Partial decompression or complete exeresis should be considered according to the experience of the surgical team in nerve reconstruction. The repair of the facial nerve as a first option should be the immediate graft or end-to-end suture. Neurotization is a surgical procedure that causes the patient facial symmetry with management of ocular occlusion and management of the corner of the mouth, it must be performed within a year of the nerve injury. The rehabilitation of the facial nerve requires a multidisciplinary team and the permanent collaboration of the patient to achieve the proposed objectives.


Subject(s)
Humans , Female , Adult , Anastomosis, Surgical/methods , Nerve Transfer/rehabilitation , Hypoglossal Nerve Diseases/surgery , Facial Nerve Diseases/pathology , Preoperative Period , Neurilemmoma/pathology
2.
Rev. bras. cir. plást ; 30(2): 228-234, 2015. ilus, tab
Article in English, Portuguese | LILACS | ID: biblio-1011

ABSTRACT

Introdução: O espasmo hemifacial (EHF) caracteriza-se por movimento tônico-clônico involuntário da musculatura de uma hemiface. O tratamento tem sido realizado com aplicação de toxina botulínica (TxB). A aplicação unilateral classicamente descrita resulta em assimetria semelhante à paralisia facial. O objetivo desse trabalho foi normatizar o tratamento do EHF bilateralmente com TxB, a fim de prevenir a ocorrência de assimetria facial iatrogênica. Método: Foram analisadas 66 aplicações em 15 pacientes, seguindo o protocolo do serviço para paralisia facial, acrescentado de pontos pré-tarsais no lado com EHF. Foi feita dose complementar na reavaliação após 15 dias nos pacientes que apresentavam algum grau residual de espasmo ou assimetria, buscando-se a dose necessária para alcançar controle satisfatório do espasmo sem causar assimetria facial. Resultados: A dose média total foi 20,2 U do lado não acometido e 28,4 U do lado acometido, totalizando 48,6 U por aplicação. Houve diferença significante entre as hemifaces na dose para os músculos zigomático, orbicular da boca e orbicular dos olhos. Conclusões: A técnica proposta de aplicação bilateral de TxB controlou adequadamente o EHF e evitou assimetria iatrogênica. Como regra geral, a aplicação deve ser feita na proporção de 1:1,5 U no orbicular dos olhos (porção lateral) e 1:2 U no orbicular da boca. Nos demais músculos, a dose nos dois lados deve ser a mesma, realizando-se dose de reforço em 15 dias caso permaneça algum grau de espasmo. O único local com pontos exclusivos do lado acometido é a região pré-tarsal do músculo orbicular do olho.


Introduction: Hemifacial spasm (HFS) is characterized by the involuntary tonic-clonic movement of the muscles of the hemiface. It is usually treated with botulinum toxin (BTX). The classically described unilateral application of BTX results in an asymmetry similar to facial paralysis. The aim of this study was to standardize the treatment of HFS by applying BTX bilaterally to prevent the occurrence of iatrogenic facial asymmetry. Methods: The outcomes of 66 applications in 15 patients were analyzed according to the protocol of the facial paralysis service, to which pretarsal sites were added on the HFS side. On reassessment 15 days later, a complementary dose was administered to patients who exhibited some residual degree of spasm or asymmetry with the aim of determining the dose required to achieve satisfactory spasm control without causing facial asymmetry. Results: The total mean dose was 20.2 U at the contralateral side and 28.4 U at the spasm side (a total dose of 48.6 U per application). There was a significant difference between the doses applied to the zygomaticus, orbicularis oris, and orbicular oculi muscles on each hemiface . Conclusions: The proposed bilateral BTX application technique was effective in controlling HFS and prevented iatrogenic asymmetry. In general, application should be performed at a ratio of 1:1.5 U in the orbicularis oculi (lateral portion) and 1:2 U in the orbicularis oris. In the remaining muscles, the same dose should be administered on both sides and an additional dose can be applied 15 days later if some degree of spasm is present. The pretarsal region of the orbicularis oculi muscle is the only area for which BTX application on the healthy side is unnecessary.


Subject(s)
Humans , Male , Female , Middle Aged , History, 21st Century , Prospective Studies , Botulinum Toxins, Type A , Hemifacial Spasm , Guidelines as Topic , Evaluation Study , Facial Asymmetry , Facial Bones , Facial Nerve Diseases , Facial Paralysis , Botulinum Toxins, Type A/therapeutic use , Botulinum Toxins, Type A/pharmacology , Hemifacial Spasm/surgery , Hemifacial Spasm/pathology , Guidelines as Topic/methods , Facial Asymmetry/pathology , Facial Asymmetry/therapy , Facial Bones/abnormalities , Facial Bones/pathology , Facial Nerve Diseases/pathology , Facial Paralysis/pathology
4.
J Postgrad Med ; 1997 Jan-Mar; 43(1): 14-5
Article in English | IMSEAR | ID: sea-116425

ABSTRACT

Intraparotid facial nerve schwannoma are uncommon. Preoperative diagnosis of parotid tumour as schwannoma is difficult when facial nerve function is normal. A rare case of solitary schwannoma involving the upper branch of the facial nerve is described and the literature on the subject is reviewed.


Subject(s)
Adult , Facial Nerve Diseases/pathology , Female , Humans , Neurilemmoma/pathology , Parotid Neoplasms/pathology
5.
Rev. ecuat. neurol ; 3(1): 10-3, 1994. tab
Article in Spanish | LILACS | ID: lil-213688

ABSTRACT

Siendo la parálisis facial periférica una unidad frecuente en la consulta externa neurológica, se estudiaron prospectivamente 32 pacientes (19 mujeres y 13 varones) cuyas edades fluctuaron entre 16 y 71 años (edad promedio 35.5) y que cursaban entre el quinto y decimoquinto día del inicio de sus síntomas, estableciendo una correlación entre la clínica, hallazgos neurofisiológicos, evolución y pronóstico a corto plazo. Se realizó: estimulación eléctrica del nervio y registro de su respuesta en los músculos frontal, orbicular de los párpados, orbicular de los labios y nasalis, comparando latencias y amplitudes con el lado sano, y electromiografía con aguja bipolar en los tres primeros músculos mencionados. El parámetro de mayor valor resultó la respuesta muscular al estímulo eléctrico, correlacionándose significativamente con el hallazgo electromiográfico y su mejor pronóstico a las seis semanas (p<0.03). La modificación de las latencias fue el parámetro menos importante, no así la amplitud del potencial de acción, que sí tuvo balor en la predicción del pronóstico.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Facial Nerve Diseases/pathology , Facial Neuralgia/pathology , Nervous System , Neurophysiology , Facial Paralysis/epidemiology
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