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Ischaemic skeletal muscle increases serum ischaemia modified albumin.

By M. Troxler, D. Thompson and Shervanthi Homer-Vanniasinkam

Abstract

NoObjectives\ud Ischaemia modified albumin (IMA) has been used as a marker of myocardial ischaemia but little is known about its production during ischaemia of other tissues. The clinical models of patients with intermittent claudication and major arterial surgery were used to investigate IMA production from ischaemic skeletal muscle.\ud Materials and methods\ud IMA was measured pre-operatively, at end ischaemia, and 5min, 4, 24, 48, 72 and 144h post-surgery in patients undergoing (a) revascularisation for intermittent claudication (IC, n=15), (b) abdominal aortic aneurysm repair (AAA, n=12) and controls (n=16).\ud Results\ud The median pre-operative IMA concentration in IC patients was significantly higher than the AAA group (88.3 versus 83.5U/ml, p=0.036) and controls (88.3 versus 80.3U/ml, p=0.031). IMA concentrations increased significantly during arterial clamping in both IC and AAA groups (88.3 versus 120.0U/ml, p=0.001; 83.5 versus 118.8U/ml, p=0.002, respectively) consistent with increased skeletal muscle ischaemia. In contrast, there was only a mild perioperative increase in the controls (80.3 versus 91.6U/ml, p=0.012).\ud Conclusions\ud Patients with intermittent claudication have significantly elevated IMA and skeletal muscle ischaemia during arterial surgery results in significantly increased circulating IMA. When IMA is used to detect myocardial ischaemia, ischaemic skeletal muscle must be excluded

Topics: Skeletal, Muscle, Serum albumin, Ischemia,
Year: 2009
DOI identifier: 10.1016/j.ejvs.2005.06.019
OAI identifier: oai:bradscholars.brad.ac.uk:10454/3805
Provided by: Bradford Scholars
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