Progressive neuropathy developed in a man during 2--8 weeks after acute poisoning by a pesticide said to contain trichlorphon. The neuropathy was typical of that caused by organophosphorus esters in the delay and in the maintenance of normal conduction velocity in surviving nerve fibres. A sample al
Clinical and electrophysiological study of neuropathy after organophosphorus compounds poisoning
โ Scribed by C. Vasilescu; A. Florescu
- Publisher
- Springer-Verlag
- Year
- 1980
- Tongue
- English
- Weight
- 807 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0340-5761
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โฆ Synopsis
Clinical and electrophysiological examinations were performed on 12 patients with toxic neuropathy following accidental ingestion of alcohol polluted by triorthocresyl phosphate (TOCP). Concurrent PNS and CNS lesions were found in all patients. Two to three months after ingestion, five of them showed prevalent signs of mixed, sensorimotor polyneuropathy, especially motor and distal, and the electrophysiological data pointed to the mixed process of axonal degeneration and secondary demyelination. In two of these five patients in whom examinations were repeated 13 years after TOCP ingestion, there was a marked clinical and electrophysiological improvement of signs of PNS lesions. Improvement of signs of CNS lesions was very poor even after 13 years. Signs of CNS lesions prevailed in the remaining seven patients. The clinical picture resembled that in amyotrophic lateral sclerosis and the electrophysiological data suggested a neuronal and axonal degeneration.
Apart from the 12 cases ofTOCP neuropathy, we also studied two cases of poisoning with organophosphorus insecticides, Dipterex and Divipan, in which a pure motor form of neuropathy was found.
๐ SIMILAR VOLUMES
Organophosphorus (OP) compounds can bind to and inactivate several target molecules other than acetylcholinesterase (AChE). In the present study, five sets of structurally related organophosphorus compounds were used to evaluate the relationships between organophosphorus binding sites of AChE, neuro