Abstract
Summary A polarographic electrode system, continuously measuring skin oxygen tension, has been used to investigate forearm and digital blood flow. The electrode was placed on stripped skin on the forearm and/or finger and the changes in oxygen tension were recorded. Changes in finger blood flow were simultaneously measured by calorimetry. Hyperventilation and the Valsalvamanoeuvre produced significant transient changes in skin oxygen tension and blood flow. Measurements of skin oxygen tension showed that the system responded rapidly to changes both in arterial oxygen tension and superficial skin blood flow. This non-invasive technique should also prove helpful in investigation of vascular disease and conditions such as acne rosacea and flushing.
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