Tick paralysis

Electrophysiologic studies

Thomas Robert Swift, O. J. Ignacio

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

A patient with tick paralysis had motor and sensory nerve conduction studies before and after removal of an engorged tick. The amplitudes of muscle action potentials evoked by stimulation of motor nerves were reduced initially, returning to normal after the tick was removed. Distal motor and sensory latencies also shortened after removal, and conduction velocities were improved 6 months later. Direct stimulation of muscle produced a normal response, and tests of neuromuscular transmission were normal, including the response to edrophonium. These findings are compatible with experimental results showing effects of the toxin on motor nerve terminals as well as on large sensory and motor nerves.

Original languageEnglish (US)
Pages (from-to)1130-1133
Number of pages4
JournalNeurology
Volume25
Issue number12
StatePublished - Jan 1 1975

Fingerprint

Tick Paralysis
Ticks
Edrophonium
Muscles
Neural Conduction
Action Potentials

ASJC Scopus subject areas

  • Clinical Neurology

Cite this

Swift, T. R., & Ignacio, O. J. (1975). Tick paralysis: Electrophysiologic studies. Neurology, 25(12), 1130-1133.

Tick paralysis : Electrophysiologic studies. / Swift, Thomas Robert; Ignacio, O. J.

In: Neurology, Vol. 25, No. 12, 01.01.1975, p. 1130-1133.

Research output: Contribution to journalArticle

Swift, TR & Ignacio, OJ 1975, 'Tick paralysis: Electrophysiologic studies', Neurology, vol. 25, no. 12, pp. 1130-1133.
Swift TR, Ignacio OJ. Tick paralysis: Electrophysiologic studies. Neurology. 1975 Jan 1;25(12):1130-1133.
Swift, Thomas Robert ; Ignacio, O. J. / Tick paralysis : Electrophysiologic studies. In: Neurology. 1975 ; Vol. 25, No. 12. pp. 1130-1133.
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