Journal: Drug Invention Today

Article Id: JPRS-Pcol-00002529
Title: Comparative analysis of Allen’s test with modified Allen’s test and its clinical importance
Category: Pharmacology
Section: Research Article
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    Introduction: The Allen test is a widely used screening method of hand circulation. The circulation of the hand is supported by two main arteries, ulnar artery and radial artery. Allen’s test is also used to assess the adequacy of ulnar collateral circulation to the hand. Allen first described his test in 1929 but did not indicate a time period after which a test should be deemed positive. The aim of the study is to compare the Allen’s test with modified Allen’s test (MAT) and to correlate with its clinical importance. Materials and Methods: Allen’s test is performed by asking the subject to clench each fist tightly for 1 min at constant time, pressure is applied and the subject is asked to open the fingers, and the examiner compares the color of each hand. In MAT, the patient’s hand is elevated and also the person is asked to clench their fist for a minimum of 30 s, pressure is applied. Still elevated, the hand is then opened. It ought to seem blanched and the color will return within 5–15 s. Results: Although there was no specific difference found between the Allen’s test and the MAT, the resulting feature of these tests reveals the collateral circulation of the radial artery can be assessed by the MAT which might be helpful in several clinical examinations. Conclusion: The Allen test is a sensible and valid screening test for the circulation of the hand. Thus, if the blood supply from one of the arteries is stopped, the other arteries will provide adequate blood to the hand. A minority of individuals lack this dual blood supply

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    Author(s) Name:

    S. Sivaharini 1 , K. Yuvaraj Babu2 , Karthik Ganesh Mohanraj 2 *

    Affiliation(s) Name:

    1 Department of Anatomy, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India,

    2 Department of Anatomy, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India

    *Corresponding Author: Karthik Ganesh Mohanraj, Department of Anatomy, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, 162, Poonamallee High Road, Chennai - 600 077, Tamil Nadu, India.

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    Author:

    S. Sivaharini 1 , K. Yuvaraj Babu2 , Karthik Ganesh Mohanraj 2 *

    Title:Comparative analysis of Allen’s test with modified Allen’s test and its clinical importance
    Journal:Drug Invention Today
    Vol(issue):10 (Oct)
    Year:2018
    Page No: (1936-1938)
  • Experimental Methods Keywords

    Methodology:Allen’s test with modified Allen’s test
    Research Materials:Hand circulation

Keywords

Allen’s test Collateral flow Modified Allen’s test Radial artery bypass conduits Revascularization Thrombosis Ulnar artery

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