ABSTRACT
Viral infections implicated in acute hearing loss include rubella, measles, mumps, herpes zoster, cytomegalovirus and influenza. Mumps' deafness is the best documented disorder. We describe a case where bilateral sensorineural hearing loss, following a severe mumps infection at the age of two, remained unnoticed until the age of four when the patient presented with delayed speech and language. This report emphasises the risk of permanent hearing loss as a complication of mumps infection and discusses strategies for early diagnosis and prevention.
Subject(s)
Hearing Loss, Bilateral/etiology , Hearing Loss, Sensorineural/etiology , Mumps/complications , Audiometry, Pure-Tone , Child, Preschool , Humans , MaleABSTRACT
Electromyography was done in patients at the C6 level of quadriplegia after transfer of the brachioradialis to the flexor pollicis longus to restore lateral pinch and transfer of the posterior deltoid to the triceps to restore elbow extension. The relationship of the integrated electromyogram to pinch force during a graduated isometric contraction enabled characterization of the motor recruitment pattern. After tendon transfer, the pattern of the electromyographic response for the brachioradialis was the same as in the flexor pollicis longus in normal subjects, and the posterior deltoid after transfer to the triceps fired synergistically with the brachioradialis. These findings indicate reeducation of transferred muscles occurred after surgery and that they functioned as active primary motors.
