Walking Impairment Questionnaire and Walking Tests are Reliable Indicators of Success of Treatment of Peripheral Artery Disease.
2021
The functional capacity of patients with peripheral arterial disease (PAD) represents an important indicator of patient health and quality of life. The aim of this prospective study was to investigate the validity of a walking impairment questionnaire (WIQ) compared with walking tests for the estimation of the therapeutic effect of lower limb revascularization. The study included 36 patients with PAD in whom successful percutaneous revascularization of a lower limb was performed due to disabling intermittent claudication. Before the revascularization procedure and 4-6 weeks after successful revascularization, clinical examination, ankle brachial index (ABI) measurement, 6-min walk test, treadmill test, and WIQ were performed. After revascularization, significant improvement in walking capacity was shown by both 6-min walk test and treadmill exercise test as well as with WIQ. However, the increase in ABI was borderline. Significant correlations between improvement of 6-min walk test and treadmill exercise test results and the sum of WIQ points were found. The ABI was significantly correlated with treadmill maximal walking distance only. According to our results, the WIQ correlates well with walking tests and is a reliable indicator of effective revascularization of lower limb arterial occlusions, even in patients with a nonsignificant improvement of the ABI.
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