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Related Experiment Videos

Upper extremity tourniquet tolerance

D T Hutchinson1, M A McClinton

  • 1Raymond M. Curtis Hand Center, Union Memorial Hospital, Baltimore, Md.

The Journal of Hand Surgery
|March 1, 1993
PubMed
Summary
This summary is machine-generated.

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Forearm tourniquets are better tolerated and less painful than upper arm tourniquets. Volunteers experienced less discomfort and pain with forearm tourniquets during this comparative tolerance study.

Area of Science:

  • Orthopedics
  • Neurosurgery
  • Pain Management

Background:

  • Tourniquets are used in surgery to reduce blood loss and improve visualization.
  • The placement and tolerance of tourniquets can affect patient comfort and outcomes.
  • Limited comparative data exists on the tolerance of upper arm versus forearm tourniquets.

Purpose of the Study:

  • To compare the relative tolerance and pain perception of upper arm tourniquets versus forearm tourniquets in unsedated volunteers.
  • To identify factors influencing tourniquet tolerance and associated neurological symptoms.

Main Methods:

  • Twenty unsedated volunteers underwent testing with both an arm and a forearm tourniquet applied sequentially to opposite limbs.
  • Subjects rated pain levels during and after tourniquet application.

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  • Neurological symptoms (paresthesias, numbness, paralysis) and physiological parameters (pulse rate, blood pressure) were monitored.

    • Main Results:

    • Forearm tourniquets were tolerated significantly longer (average 45% more time) and rated as less painful than arm tourniquets.
    • Discomfort peaked just before deflation and in the hand post-deflation; paresthesias were earliest in the ulnar nerve distribution.
    • Blood pressure correlated with tourniquet pain, unlike pulse rate; no significant edema was observed.

    Conclusions:

    • Forearm tourniquets offer superior tolerance and reduced pain compared to upper arm tourniquets.
    • Understanding tourniquet placement and associated symptoms is crucial for patient comfort and safety in limb surgeries.