Interscalene blocks for chronic upper extremity pain

Department of Anesthesiology, Mayo Clinic, Rochester, 55905, U S A A. SuccesSfuI treatment — RSD group Ten of the Il patients in this group had limited RD.' prior to ISB. Nine of these 10 had increased after ISB. Eight of the patients in this group had at least one atterpted SGB. In 3 of these 8, the SGB was helpful in decreasing pain. ................
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