Skip to Main Content

++

The technique of intravenous regional anesthesia (IVRA) was first introduced by August Bier in 1908.1 Bier block essentially consists of injecting local anesthetic solutions into the venous system of an upper or lower extremity that has been exsanguinated by compression or gravity and that has been isolated by means of a tourniquet from the central circulation. In Dr. Bier's original technique, the local anesthetic procaine in concentrations of 0.25% to 0.5% was injected through an intravenous cannula, which had been placed between two Esmarch bandages utilized as tourniquets to divide the arm into proximal and distal compartments.2–4 After injecting the local anesthetic, Dr. Bier noted two distinct types of anesthesia; an almost immediate onset of “direct” anesthesia between the two tourniquets, and then, after a delay of 5 to 7 min, an “indirect” anesthesia distal to the distally placed tourniquet. By performing dissections of the venous system of the upper extremity in cadavers after injecting methylene blue, Bier was able to determine that the direct anesthesia was the result of local anesthesia bathing bare nerve endings in the tissues, whereas the indirect anesthesia was most probably due to local anesthesia being transported to the substance of the nerves via the vasa nervorum, where a typical conduction block occurs. Dr. Bier's conclusion was that two mechanisms of anesthesia were associated with his technique: peripheral infiltration block and conduction block. The technique, as originally described by Dr. Bier, remains essentially unchanged in modern practice for the past 95 years, except for the introduction of the double-tourniquet preparation used in current clinical practice5–7 (Figure 41–1).

++
Fig. 41-1
Graphic Jump Location

Double pneumatic tourniquet system for use in IV regional anesthesia of the upper or lower extremity.

++

Bier block can be used for brief surgical procedures or manipulations of the upper or lower extremity. However, the technique found its greatest acceptance for use for the upper extremity because tourniquet problems and other safety issues seem to arise more frequently when IVRA is used on the lower extremities. Bier block is also a procedure that has found utility as a treatment adjunct for patients suffering from complex regional pain syndromes (CRPS) (formerly know as reflex sympathetic dystrophy, or sympathetically maintained pain) as an alternative to repeated sympathetic blocks. In this regard, IVRA has been shown to decrease neurogenic inflammation, a phenomenon possibly associated with CRPS, with little impairment of sensory function, at least when mepivacaine is the local anesthetic chosen for the block. Sensibility to cold is significantly decreased 10 and 30 min after the block, even with a reduction in the skin temperature on the blocked side.8 Chemical sympathectomy using IVRA with agents such as guanethidine or bretylium may last up to 5 days, as compared with local anesthetic blocks, which typically provide analgesia lasting only several hours. Quantitative sensory testing before and after such blocks has demonstrated that ...

Want remote access to your institution's subscription?

Sign in to your MyAccess profile while you are actively authenticated on this site via your institution (you will be able to verify this by looking at the top right corner of the screen - if you see your institution's name, you are authenticated). Once logged in to your MyAccess profile, you will be able to access your institution's subscription for 90 days from any location. You must be logged in while authenticated at least once every 90 days to maintain this remote access.

Ok

About MyAccess

If your institution subscribes to this resource, and you don't have a MyAccess profile, please contact your library's reference desk for information on how to gain access to this resource from off-campus.

Subscription Options

AccessAnesthesiology Full Site: One-Year Subscription

Connect to the full suite of AccessAnesthesiology content and resources including procedural videos, interactive self-assessment, real-life cases, 20+ textbooks, and more

$995 USD
Buy Now

Pay Per View: Timed Access to all of AccessAnesthesiology

24 Hour Subscription $34.95

Buy Now

48 Hour Subscription $54.95

Buy Now

Pop-up div Successfully Displayed

This div only appears when the trigger link is hovered over. Otherwise it is hidden from view.