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Autonomic arterial neuropathy in lower limbs
1Department of Thoracic and Vascular Surgery, Ümraniye Training and Research Hospital, Istanbul, Turkey - behcetener@hotmail.com.
International Angiology : a Journal of the International Union of Angiology
|September 13, 2014
Summary
Patients with lower limb arterial neuropathy exhibit hyperperfusion due to decreased arterial resistance, leading to venous stasis and abnormalities. This study highlights the role of arterial neuropathy in causing these vascular changes.
Area of Science:
- Vascular Medicine
- Neurology
- Radiology
Background:
- Arterial neuropathy of the lower limbs can lead to decreased arterial resistance and subsequent hyperperfusion.
- Venous stasis and abnormalities are potential consequences of altered arterial hemodynamics in the lower extremities.
Purpose of the Study:
- To investigate the role of hyperperfusion, resulting from decreased arterial resistance, in patients diagnosed with arterial neuropathy of the lower limbs.
- To correlate arterial hemodynamic changes with venous stasis and abnormalities in affected patients.
Main Methods:
- Prospective, controlled study involving 54 patients with lower limb venous stasis and 24 healthy controls.
- Arterial Duplex color scanning and MRI angiography were utilized.
- Pulsatility Index (PI) from pedal arteries (CW Doppler) and Peak Systolic Velocity (PSV) were measured.
Main Results:
- Patients with arterial neuropathy showed significantly decreased PI and increased PSV in pedal arteries compared to controls (P=0.001).
- MRI angiography revealed arterial contrast enhancement and venous abnormalities in patients with severe hyperperfusion (PI < 3).
- A significant difference in hemodynamic parameters was observed between patient subgroups (P=0.001).
Conclusions:
- Lower limb arterial neuropathy is associated with hyperperfusion, characterized by decreased PI and increased PSV.
- This hyperperfusion contributes to the development of venous stasis and various venous abnormalities.
- The findings underscore the link between arterial neuropathy and secondary venous pathology in the lower limbs.
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