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ULTIMO FASCICOLOINTERNATIONAL ANGIOLOGY

Rivista di Angiologia

Official Journal of the International Union of Angiology, the International Union of Phlebology and the Central European Vascular Forum
Indexed/Abstracted in: BIOSIS Previews, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 0,899

Periodicità: Bimestrale

ISSN 0392-9590

Online ISSN 1827-1839

 

International Angiology 2007 Settembre;26(3):253-7

 Original articles

Ankle-brachial index: a surrogate marker of microvascular complications in type 2 diabetes mellitus?

Papanas N. 1, Symeonidis G. 2, Mavridis G. 2, Georgiadis G. S. 3, Papas T. T. 3, Lazarides M. K. 3, Maltezos E. 1

1 Second Department of Internal Medicine, Democritus University of Thrace, Alexandroupolis, Greece
2 Diabetic Department, O Agios Dimitrios General Hospital, Thessaloniki, Greece
3 Department of Vascular Surgery, Democritus University of Thrace, Alexandroupolis, Greece

Aim. The aim of this study was to investigate the potential role of ankle-brachial index (ABI) as a marker of microvascular disease in patients with type 2 diabetes mellitus.
Methods. This study included 126 type 2 diabetic patients (64 male and 62 female) with an age of 66.6±5.3 years (mean±SD) and diabetes duration of 13.2±4.1 years. ABI was measured with a Doppler device. The exclusion criterion was the medial arterial calcification. Patients were also examined for microalbuminuria, retinopathy and peripheral neuropathy.
Results. ABI was significantly lower in patients with microalbuminuria than in those without microalbuminuria (0.91±0.17 vs 1.05±0.13, P=0.004), in patients with retinopathy than in those without retinopathy (0.91±0.18 vs 1.06±0.1, P=0.005), as well as in patients with neuropathy than in those without neuropathy (0.94±0.17 vs 1.06±0.11, P=0.001). Sensitivity and specificity of ABI <0.9 were 48.8% and 87.9% respectively for microalbuminuria, 39.1% and 93% respectively for retinopathy and 47% and 90.7% respectively for neuropathy. In multiple regression analysis, significant predictor of microalbuminuria was diabetes duration (P=0.0014), significant predictor of retinopathy was diabetes duration (P=0.001), while significant predictors of neuropathy were diabetes duration (P=0.001), male sex (P=0.001) and presence of retinopathy (P=0.047).
Conclusion. ABI is significantly lower in patients with than in those without microvascular complications of type 2 diabetes. An ABI <0.9 has a low to modest sensitivity, but a high specificity for the diagnosis of these complications. Our results suggest a potential role for ABI as a surrogate marker of microvascular complications in type 2 diabetic patients.

lingua: Inglese


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