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Related Experiment Videos

Some interrelations between blood pressure parameters and claudication distances.

V Puchmayer1, V Albrecht, J Herdová

  • 1IV Medical Department, Faculty of Medicine, Charles University, Prague, Czechoslovakia.

International Angiology : a Journal of the International Union of Angiology
|January 1, 1991
PubMed
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Peripheral artery disease significantly impacts walking ability. This study found a strong correlation between ankle pressure measurements and claudication distance in patients with lower extremity atherosclerotic lesions.

Area of Science:

  • Vascular Medicine
  • Medical Diagnostics
  • Biomedical Engineering

Background:

  • Peripheral artery disease (PAD) is a common condition characterized by atherosclerotic lesions in the arteries of the lower extremities.
  • Symptoms of PAD, such as claudication, significantly impair patients' quality of life and mobility.
  • Accurate assessment of disease severity is crucial for effective management and treatment planning.

Purpose of the Study:

  • To investigate the relationship between hemodynamic parameters and claudication distance in patients with lower extremity PAD.
  • To determine the predictive value of Doppler ultrasound measurements for functional limitations in PAD patients.
  • To establish correlations between ankle pressure gradients and patient-reported walking impairment.

Main Methods:

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  • Sixty-two patients (60 males, 2 females, mean age 58.1 years) with atherosclerotic lesions of lower extremity arteries were enrolled.
  • Claudication distance was assessed in two segments: onset of pain and cessation of walking due to pain.
  • Systemic systolic pressure and poststenotic ankle pressure were measured using Doppler ultrasound, and pressure gradients were calculated.

Main Results:

  • Both initial and final claudication distances were significantly related to poststenotic ankle pressure and pressure gradients.
  • Stepwise regression analysis revealed a significant association between walking distances and the lowest ankle pressure measurements across four tibial arteries.
  • A very high correlation (R = 0.98) was observed between initial and final claudication distances, persisting even after excluding pressure parameters.

Conclusions:

  • Ankle pressure measurements, particularly the lowest values, are reliable indicators of functional limitations in patients with lower extremity PAD.
  • Doppler ultrasound assessment of pressure gradients provides valuable information for evaluating PAD severity and predicting claudication.
  • The strong correlation between different measures of claudication distance highlights the consistent impact of PAD on walking ability.