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Association between foot temperature and sudomotor dysfunction in type 2 diabetes.

Nikolaos Papanas¹, Konstantinos Papatheodorou, Dimitrios Papazoglou

¹Outpatient Clinic of the Diabetic Foot, Second Department of Internal Medicine, Democritus University of Thrace, Greece, Alexandroupolis, Greece. papanasnikos@yahoo.gr

Journal of Diabetes Science and Technology

|July 29, 2010

Summary

Patients with type 2 diabetes and sudomotor dysfunction have higher foot temperatures. Increased foot skin temperature correlates with the severity of sudomotor dysfunction, indicating a potential diagnostic marker.

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Area of Science:

Endocrinology
Neurology
Dermatology

Background:

Diabetic neuropathy is associated with increased foot skin temperature.
Sudomotor dysfunction is a common complication in type 2 diabetes mellitus.

Purpose of the Study:

To investigate the association between foot temperature and sudomotor dysfunction in type 2 diabetes mellitus patients.

Main Methods:

Compared foot skin temperature in 51 patients without sudomotor dysfunction (Group A) and 52 patients with sudomotor dysfunction (Group B).
Defined sudomotor dysfunction by delayed Neuropad color change (>600 s).
Measured foot skin temperature using an infrared thermometer on the plantar aspect.

Main Results:

Patients with sudomotor dysfunction (Group B) exhibited significantly higher foot temperatures on both feet compared to those without (Group A).
A significant positive correlation was found between the time for complete Neuropad color change and foot skin temperature in both feet.

Conclusions:

Elevated foot skin temperature is significantly associated with sudomotor dysfunction in type 2 diabetes.
Foot temperature serves as a potential indicator of sudomotor dysfunction severity in diabetic patients.