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Updated: Jun 12, 2026

Intracoronary Acetylcholine Provocation Testing for Assessment of Coronary Vasomotor Disorders
Published on: August 18, 2016
Comparison of a gel versus solution-based vehicle for the delivery of acetylcholine in QSART
David M Sletten1, Kurt Kimpinski, Stephen D Weigand
1Department of Neurology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, United States.
Abstract:
Quantitative Sudomotor Axon Reflex Testing is a useful measure of post ganglionic sudomotor function. The test is based on the iontophoresis of an acetylcholine solution which induces a local sweat response. We have previously described a gel-based vehicle that may provide another option for the iontophoresis of acetylcholine. It was our objective to compare the influence of the vehicle (gel versus solution) on sudomotor recordings and perceived discomfort. Results show gel-based vehicles are very similar to solution-based vehicles during Quantitative Sudomotor Axon Reflex Testing.
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