[Health status of workers in polyvinyl chloride processing plants. I. Evaluation of occupational exposure. Subjective and capillaroscopy studies. Conduction velocity in the motor nerves].

The examinations covered 255 workers of two polyvinyl chloride processing plants. All workers were subject to general medical examinations including electrocardiography. In a part of workers employed in the plant located in the Katowice Voivodeship, the dermatological tests and neurological examinations including testing the velocity of conduction in motor nerves were carried out and the selected group was subject also to capillaroscopy and dermatothermometry. In the examined workers no "vinyl chloride disease" was found; capillaroscopy and neurological examinations did not reveal any evident changes. However, some dermatoses, most frequently of allergic type, were often encountered.