claudication distance
Standardized walking distance at which a patient develops leg pain due to arterial insufficiency.
Full Definition
Claudication distance refers to the specific walking distance at which a patient with peripheral arterial disease develops reproducible leg pain, cramping, or fatigue due to inadequate arterial blood flow to exercising muscles. This measurement is typically assessed using standardized treadmill testing protocols, most commonly a constant load test at 2 mph on a 12% grade, or during six-minute walk tests. Claudication distance is categorized as initial claudication distance (when symptoms first appear) and absolute claudication distance (when the patient must stop walking due to severity). These measurements are crucial for determining disease severity according to classification systems like Rutherford categories, assessing functional impairment, and monitoring treatment response. Improvement in claudication distance following intervention is considered an important clinical endpoint and quality-of-life measure for patients with symptomatic peripheral arterial disease.
Usage
Usage note: Specify whether initial or absolute claudication distance when precision required
In Context
- "The patient's claudication distance improved from 50 meters to 300 meters following angioplasty." — Post-intervention outcome assessment
- "Baseline testing revealed an initial claudication distance of 100 meters on standardized treadmill protocol." — Pre-procedural evaluation