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A noninvasive method to assess sympathetic activity

J M Stallworth, J B Horne, G W Plonk

    The American Surgeon
    |August 1, 1981
    PubMed
    Summary
    This summary is machine-generated.

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    This study introduces a safe, noninvasive test to assess sympathetic nervous system activity, aiding in diagnosing arterial diseases, vasospasm, and diabetic neuropathy. The test accurately predicts treatment outcomes for digital blood flow issues.

    Area of Science:

    • Physiology
    • Vascular Medicine
    • Neurology

    Background:

    • Sympathetic nervous system regulates skin blood flow and body temperature.
    • Digital blood flow, primarily through skin vessels, is crucial for thermoregulation.
    • Assessing sympathetic activity is vital for diagnosing various vascular and neurological conditions.

    Purpose of the Study:

    • To describe a noninvasive test for assessing sympathetic nervous system activity.
    • To differentiate between arterial diseases, vasospasm, and diabetic neuropathy.
    • To evaluate the test's utility in predicting treatment outcomes.

    Main Methods:

    • Utilized surface temperature measurements and digital plethysmography to study digital blood flow.
    • Monitored sympathetic activity by measuring skin electrical resistance.

    Related Experiment Videos

  • Compared findings in normal subjects with patients suffering from arterial diseases, vasospasm, and diabetes.

    • Main Results:

    • The noninvasive test successfully differentiated arterial obstructions from vasospasm.
    • Diabetic neuropathy was objectively identified using this method.
    • Follow-up studies in over 1200 patients confirmed accurate prediction of treatment outcomes.

    Conclusions:

    • This safe and inexpensive noninvasive test is effective for assessing sympathetic activity.
    • It provides objective identification of specific conditions like diabetic neuropathy and arterial obstructions.
    • The test accurately predicts outcomes for both surgical and nonoperative treatments related to digital blood flow.