Peripheral arterial calcification: prevalence, mechanism, detection, and clinical implications

Area of Science:

• Cardiovascular Medicine
• Nephrology
• Endovascular Surgery

Background:

• Vascular calcification (VC) is prevalent in diabetes mellitus and chronic kidney disease, increasing cardiovascular risks.
• Pathophysiology involves hypocalcemia, hyperphosphatemia, and parathyroid hormone suppression, leading to vessel and bone demineralization.
• Current treatments for VC show promise but require validation in larger cohorts.

Purpose of the Study:

• To address the poorly defined impact of intimal and medial VC on endovascular device safety and efficacy for peripheral arterial disease (PAD).
• To propose a validated grading scale for vascular calcium to advance clinical assessment of endovascular devices in calcified vessels.

Main Methods:

• Development and proposal of the Peripheral Arterial Calcium Scoring System (PACSS).
• Outline of a method for the clinical validation of the PACSS system.

Main Results:

• The study proposes the PACSS, a novel system for grading vascular calcification.
• A validation methodology for PACSS is presented to facilitate clinical assessment.

Conclusions:

• A validated vascular calcium grading scale is essential for assessing endovascular device safety and utility in PAD.
• Improved understanding of VC pathogenesis and optimized treatment strategies are critical for an aging population with comorbidities.