In the present overview, practical application of the visual evoked potential (VEP) in paediatric neuro-ophthalmology is described across a wide range of ophthalmogenetic disorders, including albinism, Pelizaeus-Merzbacher disease and spastic paraplegia. The VEP approach is based on a four parameter subdivision of the electrophysiological response which includes, (1) amplitude (microV), (2) lat...

Clinical and electrical myotonia is caused by a small group of neuromuscular disorders. This article reviews myotonia and its differential diagnosis. The use of electrodiagnostic testing to evaluate the primary myotonic disorders (myotonic dystrophy and the nondystrophic myotonias) is also discussed.

OBJECTIVE To determine the reliability of the Thai version Boston questionnaire. SETTING Hospital-based electrodiagnosis laboratory, Department of Physical Medicine and Rehabilitation. MATERIAL AND METHOD The Boston questionnaire is the severity rating instrument for carpal tunnel syndrome (CTS). It consists of 11 items of symptom severity scores (SSS) and eight items of functional severity...

Electrodiagnosis of carpal tunnel syndrome (CTS) were prospectively studied in 95 hands. The following techniques were studied in all hands and when at least one abnormal value was found (onset-measured), it was included on results: 1. wrist-index finger latency (WIF), abnormal > or = 2.8 ms, 140 mm; 2. palm-wrist latency (PW), abnormal > or = 1.8 ms, 80 mm; 3. comparison median/ulnar palm-wris...

All disorders of neuromuscular transmission (NMT) may cause ventilatory failure, albeit rarely. Respiratory muscle weakness is occasionally the presenting feature of myasthenia gravis (MG), the Lambert-Eaton myasthenic syndrome (LEMS), hypermagnesemia and botulism. Chronic MG, congenital myasthenic syndromes and LEMS may be acutely exacerbated by various intercurrent conditions and by drugs whi...

INTRODUCTION EPIDEMIOLOGY PERIPHERAL NERVE ANATOMY AND PHYSIOLOGY PATHOPHYSIOLOGY OF NERVE INJURIES END ORGAN CHANGES FOLLOWING DENERVATION MECHANISMS OF NERVE INJURY ELECTRODIAGNOSIS OF PERIPHERAL NERVE INJURIES REHABILITATIVE MANAGEMENT OF PERIPHERAL NERVE INJURIES CAUSALGIA (COMPLEX REGIONAL PAIN SYNDROME, TYPE-II) UPPER EXTREMITY NERVE INJURIES AND ENTRAPMENT SYNDROMES NERVE INJURIES AND EN...