ABSTRACT
A 49-year-old female presented with bilateral abducens nerve palsies. She had 75 prism diopter esotropia. The extraocular movement of the lateral rectus was -1 limitation for the right eye and -4 limitations for the left. After performing orbital magnetic resonance imaging (MRI), 2 mL of bupivacain (5 mg/mL) was injected into the left lateral rectus (LR). One month after injection, a further orbital MRI was performed. Subsequently, recession of both medial rectus (6 mm) and resection of the left LR (9 mm) were performed. After one month, bupivacaine had no hypertrophic effects. There was little change in angle of deviation. The orbital MRI scan showed a 1.91% increase in volume compared to the muscle prior to the injection. Histological findings showed no muscle fibers of the left LR muscle, only the fiber nucleus and the collagen that replaced the fibers. We report on the changes in stiffness and muscle volume and on the histology of the muscle one month after injecting bupivacaine into the paralyzed left LR muscle combined with standard surgical treatment.
Subject(s)
Female , Humans , Middle Aged , Abducens Nerve/pathology , Abducens Nerve Diseases/drug therapy , Anesthetics, Local/administration & dosage , Bupivacaine/administration & dosage , Magnetic Resonance ImagingABSTRACT
La otitis media aguda (OMA) es la infección bacteriana másfrecuente en pediatría. A pesar de la existencia de tratamiento antibiótico adecuado aún existen casos de complicaciones intratemporales o intracraneales con riesgo potencial de morbimortalidad elevada. Mastoiditis, petrositis y laberintitis se producen como consecuencia de la extensión del proceso supurado desde el oído medio a las estructuras adyacentes. GiuseppeGradenigo fue quien describió la tríada de otitis media aguda, dolor unilateral en las áreas inervadas por la 1a y 2a ramas del nervio trigémino y parálisis del 6º par craneal. Esta es una grave, aunque rara, complicación de la OMA, que debe ser sospechada en todo paciente con cefalea unilateral y parálisis del 6º par craneal. Presentamos el caso de un niño de 6años con síndrome de Gradenigo.
Subject(s)
Humans , Male , Child , Abducens Nerve/pathology , Otitis Media/complications , Otitis Media/physiopathology , Otitis Media/therapyABSTRACT
Se presentan 40 casos con afección del VI nervio por diversas causas etiológicas, siendo parcial (paresial) en 26 casos y total (parálisis) en 14 casos examinados. Fueron evaluados al mes de iniciado el cuadro, enfatizando la correlación entre el grado de endodesviación con el grado de limitación de abducción, encontrando congruencia en 25 casos (62 por ciento), incongruencia por mayor endodesviación que limitación de abducción en 7 casos (18 por ciento) e incongruencia por mayor limitación de abducción que endodesviación en 8 casos (20 por ciento). Se infiere que la afección del recto lateral (grado de limitación de abducción) puede ser congruente o incongruente con el grado de hipertonia del recto medial (endodesviación).
Forty cases with VI nerve alteration caused by different ethiologic factors were studied, being 26 cases with partial alteration (paresis) and 14 with total alteration (paralysis). Clinical evaluation took place one month after the onset of the alteration, emphasizing the correlation between degree of esodeviation with degree of limitation of abduction, founding congruency in 25 cases (62 percent), incongruency by more degree of esodeviation than limitation of abduction in 7 cases (18 percent), and incongruency by more degree of limitation of abduction than esodeviation in 8 cases (20 percent). It is inferred than lateral rectus affection (limitation of abduction) may be congruent or not with the medial rectus hypertonia (esodeviation).
Subject(s)
Female , Child , Young Adult , Middle Aged , Aged, 80 and over , Eye Movements , Esotropia/diagnosis , Abducens Nerve/pathology , Oculomotor Nerve/pathology , Esotropia/etiology , Esotropia/physiopathology , Ophthalmoplegia , Retrospective Studies , StrabismusABSTRACT
Säo feitas consideraçöes sobre os aspectos clínicos, patologia e prognóstico das alteraçöes da motricidade extrínseca e pupilares nos pacientes diabéticos
Subject(s)
Diabetic Neuropathies/physiopathology , Ophthalmoplegia/pathology , Abducens Nerve/pathology , Oculomotor Nerve/pathology , Trochlear Nerve/pathologyABSTRACT
A case of sixth nerve palsy following dental anaesthesia given for tooth extraction is reported.