G Felsenthal

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Radial sensory conduction has traditionally been performed by stimulating the nerve at the wrist, recording from the thumb or the base of the first web space. This paper describes a technique for measuring conduction in the more distal branches on the dorsum of the hand. Comparison is made with dorsal ulnar sensory conduction, and the area supplied by each(More)
The medical literature was reviewed to find suggested clinical applications of the study of the amplitude of evoked muscle action potentials (MAP) and sensory action potentials (SAP). In addition, the literature was reviewed to ascertain the normal amplitude and duration of the evoked MAP and SAP as well as the factors affecting the amplitude: age, sex,(More)
Compression of the ulnar nerve across the elbow is a common clinical diagnosis frequently referred for electrodiagnostic evaluation. Motor conduction studies with recording over the abductor digiti minimi and stimulating proximal and distal to the ulnar notch have been the standard technique employed in these evaluations--mean, 60.0 m/s; SD 5.0 m/s. Two(More)
This report describes an antidromic technique for studying conduction in the sensory branch of the musculocutaneous nerve, the lateral cutaneous nerve of the forearm. Surface stimulation was done at the elbow where the nerve becomes superficial, and surface recordings were made 12 cm distally over the course of the nerve. Sixty nerves in 30 normal persons(More)
This report describes a syndrome of compression of the lateral cutaneous nerve of the forearm (LCNF), the distal termination of the musculocutaneous nerve. Three patients presented with pain or numbness along the radial aspect of the distal forearm. There was a history of vigorous upper extremity exercise with elbow extension and arm pronation or resisted(More)
Tarsal tunnel syndrome is a commonly considered compression of the tibial nerve and its plantar divisions as the nerve curves behind the medial malleolus underneath the flexor retinaculum. Motor, sensory, and/or mixed-nerve conduction studies are used to confirm or exclude the presence of compression of the posterior tibial nerve and its plantar divisions.(More)
Compression of the ulnar nerve across the elbow is one of the most common of the entrapment syndromes. The usual method of electrodiagnostic evaluation is to determine the motor nerve conduction for this nerve segment. Normal values for sensory conduction and amplitude changes for this nerve segment have been rarely reported, and clinical usefulness of the(More)
Handcuff applications may result in compression of peripheral nerves at the wrist, and most reported cases involve only the superficial radial nerve. In this report, two cases of bilateral handcuff neuropathy involving multiple nerves were confirmed by electrodiagnostic findings of membrane instability, prolonged latencies and/or conduction block. In(More)
The evoked sensory nerve action potentials (ESAP) of the median nerve were studied in 20 subjects using an antidromic technique, recording the distal latency to onset and to peak, and peak to peak amplitude, using three different recording electrodes. The electrodes used were the TECA digital ring electrodes, AERO MED wire loop stretch and squeeze-type(More)