RESUMEN
We present the case of a 29-year-old electric engineer with compression neuropathy of the left sural nerve due to occupational boots. Routine nerve conduction study of the sural nerve was normal. However, the sensory nerve action potential was not detected more than 3 cm distal to the lateral malleolus, although it returned to normal values after three years. Inching method of the sural nerve may be necessary for detecting compression sural neuropathy distal to the ankle.
Asunto(s)
Electrodiagnóstico/métodos , Síndromes de Compresión Nerviosa/diagnóstico , Síndromes de Compresión Nerviosa/etiología , Zapatos/efectos adversos , Nervio Sural/lesiones , Adulto , Tobillo/inervación , Humanos , Masculino , Conducción Nerviosa , Enfermedades Profesionales/diagnóstico , Enfermedades Profesionales/etiologíaAsunto(s)
Enfermedades de los Ganglios Basales/epidemiología , Calcinosis/epidemiología , Tomografía Computarizada por Rayos X , Adolescente , Adulto , Factores de Edad , Anciano , Enfermedades de los Ganglios Basales/diagnóstico por imagen , Calcinosis/diagnóstico por imagen , Niño , Femenino , Humanos , Masculino , Persona de Mediana EdadAsunto(s)
Neuropatías Hereditarias Sensoriales y Autónomas/genética , Neuropatías Hereditarias Sensoriales y Autónomas/patología , Fibras Nerviosas Mielínicas/patología , Adolescente , Adulto , Niño , Femenino , Neuropatías Hereditarias Sensoriales y Autónomas/fisiopatología , Humanos , Japón , Masculino , Persona de Mediana Edad , Presión , Nervio Sural/patologíaRESUMEN
Two cases of the Kugelberg-Welander syndrome (juvenile form of progressive spinal muscular atrophy) associated with cardiomyopathy and cardiomegaly are presented. The first patient, a 24 year old man, had atrial flutter with complete atrioventricular (A-V) block due to A-H block. Echocardiography revealed an increase in the left atrial and right ventricular dimensions. The second patient was a 26 year old man whose electrocardiogram revealed an A-V junctional rhythm, deep Q wave in leads I, aVL and V5 to V6 and an RS pattern in lead V1. Histologic examination of the myocardium in Case 2 showed slight interstitial fibrosis. Review of previously reported cases shows that (1) the atrium, the ventricular myocardium and A-V conducting tissue may be involved, and (2) atrial arrhythmias, A-V conduction disturbances and congestive heart failure may occur in the Kugelberg-Welander syndrome.
