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CURRENT ISSUEMINERVA ENDOCRINOLOGICA

A Journal on Endocrine System Diseases

Indexed/Abstracted in: EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,118

Frequency: Quarterly

ISSN 0391-1977

Online ISSN 1827-1634

 

Minerva Endocrinologica 2008 December;33(4):289-96

    ORIGINAL ARTICLES

High prevalence of neuropathy in patients with impaired 60-minute oral glucose tolerance test but normal fasting and 120-minute glucose levels

Sahin M. 1 , Karatas M. 2, Sahin M. 2, Ertugrul D. 1, Kulaksizoglu M. 1, Dogruk A. 1, Gokcel A. 1, Tutuncu N. B. 1, Guvener N. D. 1, Kutlu M. 3

1 Department of Endocrinology and Metabolism Department, Baskent University, Ankara, Turkey
2 Department of Physical Therapy and Rehabilitation, Baskent University, Ankara, Turkey
3 Department of Endocrinology and Metabolism, Gulhane University, Ankara, Turkey

Aim. The aim of this study was to define the prevalence of neuropathy in patients with impaired 60-min oral glucose tolerance test (OGTT) but normal fasting and 120-min glucose levels and to evaluate risk factors for polyneuropathy and glucose intolerance.
Methods. The hospital files of 320 patients (56.5±11.9 years, 73.1% female), who had both electrodiagnostic test for sensory symptoms (nerve conduction studies and needle electromyography) and OGTT in maximum 6 months apart, were studied in this retrospective design study. Serum glucose levels at fasting and 0-, 30-, 60-, 90- and 120-min of OGTT and some biochemical parameters were recorded.
Results. Fifteen percent of patients had diabetes mellitus (DM) and 10.9% and 5.6% had impaired fasting glucose (IFG) and impaired glucose tolerance (IGT). Twenty-one patients (6.6%) had only impaired 60-min blood glucose levels. Polyneuropathy was found in 44.4%, 28.5%, and 50.0% of patients with IGT, IFG and DM respectively. The prevalence of polyneuropathy was significantly higher in patients with impaired 60-min than OGTT normal subjects (52.4% vs 21.7% p=0.003). Fasting blood glucose, HDL, LDL and TSH levels, age, glucose intolerance low serum folic acid and significantly increased polyneuropathy risk. Age, weight, body mass index, high fasting, 30, 60-, 90-, 120-min serum glucose, insulin and HgA1c levels were risk factors for glucose intolerance.
Conclusion. Since the prevalence of neuropathy in patients with impaired 60-min glucose levels is high, it would be valuable to look at 60-min glucose levels to detect abnormal glucose metabolism and the neuropathy earlier in the course.

language: English


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