[Examination of questionnaires regarding diabetic peripheral neuropathy in epalrestat-treated patients and their usefulness in the treatment of the patients during the treatment course].

Epalrestat (Kinedak) is an aldose reductase inhibitor (ARI) for diabetic peripheral neuropathy. In 41 diabetics, we conducted a questionnaire survey to evaluate symptoms of peripheral neuropathy and select appropriate drug therapy. We investigated 27 patients who participated in the first and second questionnaire surveys. We reviewed questionnaire items, and examined the correlation between the therapeutic effects and responses to the questionnaire. Concerning the usefulness of the questionnaire items, some questions were correlated with the effects. Treatment was effective for somatic neuropathy, but not for autonomic neuropathy. The questionnaire regarding diabetic peripheral neuropathy was useful for somatic neuropathy screening, but it was difficult to detect autonomic neuropathy.