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Polyneuropathy in Australian outpatients with type II diabetes mellitus.

Abstract：

:In order to determine the local prevalence of polyneuropathy among adult outpatients with type II (non-insulin-dependent) diabetes mellitus, we applied a series of standardised measures to patients attending a multidisciplinary diabetes clinic. The study group comprised 94 men and 15 women; mean age, 70.6+/-7.8 years; mean duration of diabetes, 11.7+/-10.1 years; and mean HbA1c 8.3%+/-1.7%. Neuropathy Symptom Scores > or = 1 were present in 97% of patients (mean, 3+/-2; range, 0-12), and 95% had Neuropathy Disability Scores > or = 2 (mean, 27+/-19; range, 0-87). 52% of men reported impotence. Autonomic dysfunction on cardiovascular reflex testing was present in 46% of patients (39/84). Finger and toe vibration perception thresholds were greater than 3SD higher than mean thresholds measured in control subjects without diabetes in 43% and 58% of patients, respectively. Polyneuropathy, defined as lower limb sensory and motor nerve conduction velocity or latency outside mean +/-2 SD of that measured in age-matched controls, was present in 49% of patients (53/109). These results suggest that there is a high prevalence of polyneuropathy in Australian out-patients with type II diabetes mellitus. In this study, clinical assessment using Neuropathy Disability Scores was not diagnostically useful since only five patients had a normal score. Using nerve-conduction studies as the "gold standard" diagnostic criteria, the best alternative test for the presence of polyneuropathy was toe vibration perception threshold (sensitivity 74%, specificity 56%). In view of the emerging evidence that intensive glycaemic control reduces the rate of progression of polyneuropathy, we recommend that patients with type II diabetes mellitus have nerve-conduction studies performed for early detection of this important complication.

journal_name

J Diabetes Complications

journal_title

Journal of diabetes and its complications

authors

de Wytt CN,Jackson RV,Hockings GI,Joyner JM,Strakosch CR

doi

10.1016/s1056-8727(98)00028-2

keywords:

subject

Has Abstract

pub_date

1999-03-01 00:00:00

pages

74-8

issue

eissn

1056-8727

issn

1873-460X

pii

S1056872798000282

journal_volume

pub_type

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Polyneuropathy in Australian outpatients with type II diabetes mellitus.