The Bier block, formally intravenous regional anesthesia, is an anesthetic technique used on a limb in which a local anesthetic is injected into a vein while circulation to the limb is isolated by a tourniquet. The German surgeon August Bier introduced the technique in 1908, exsanguinating the arm with an Esmarch bandage and injecting procaine between two tourniquets, though the method saw little use until C. McK. Holmes revived it in 1963, after which it entered common clinical practice.
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Wikipedia contributors, Wikimedia Foundationhttps://en.wikipedia.org/wiki/Intravenous_regional_anesthesia, lead sectionQuote, https://en.wikipedia.org/wiki/Intravenous_regional_anesthesia, lead section
Intravenous regional anesthesia (IVRA) or Bier's block anesthesia is an anesthetic technique on the body's extremities where a local anesthetic is injected intravenously and isolated from circulation in a target area.
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