Metabolic Response to Claudication in Peripheral Arterial Disease: a Microdialysis pilot studyShow others and affiliations
2019 (English)In: Annals of Vascular Surgery, ISSN 0890-5096, E-ISSN 1615-5947, Vol. 58, p. 134-141Article in journal (Refereed) Published
Abstract [en]
OBJECTIVES: In a pilot study investigate the possible use of microdialysis in the calf muscle to assess the metabolic response to intermittent claudication (IC). In addition, evaluate the simultaneous systemic inflammatory reaction.
METHODS: With one microdialysis catheter in the gastrocnemic muscle and one subcutaneously in the pectoral region (as a reference), and a peripheral venous catheter, dialysate and venous blood sampling was performed before, during and after walking on a treadmill to maximal tolerable claudication (controls 10 minutes).
RESULTS: A total of 9 participants were recruited, six patients with IC and three healthy controls. At baseline, IC and control subjects did not differ in metabolic findings (glucose, lactate, pyruvate, glycerol) in the gastrocnemic muscle. Subcutaneous glucose concentration was higher in controls. After physical exertion, gastrocnemic and subcutaneous glycerol, lactate and pyruvate concentrations increased in IC subjects. Plasma concentrations of Tumor Necrosis Factor--α (TNF- α), Interleucin-6 (IL-6), Interleucin-1ß (IL-1ß), Hepatocyte Growth Factor (HGF) and Vascular Endothelial Growth Factor (VEGF) were higher in IC subjects at baseline, and TNF-α, (IL-6) and Interleukin-18 (IL-18) increased after walking as did IL-6 and (IL-1ß) in controls. The muscle catheters did not show any signs of causing harm.
CONCLUSIONS: Microdialysis can be used to study the ongoing metabolic response during walking and claudication. Our results suggest both an acute local and a systemic inflammatory reaction during development of claudication pain.
Place, publisher, year, edition, pages
Elsevier, 2019. Vol. 58, p. 134-141
Keywords [en]
Intermittent Claudication, Microdialysis, Peripheral Arterial Disease, Skeletal muscle
National Category
Physiology Cardiac and Cardiovascular Systems
Identifiers
URN: urn:nbn:se:oru:diva-71845DOI: 10.1016/j.avsg.2018.09.041ISI: 000472166800018PubMedID: 30684623Scopus ID: 2-s2.0-85062659237OAI: oai:DiVA.org:oru-71845DiVA, id: diva2:1288271
2019-02-122019-02-122022-01-28Bibliographically approved