Venous pressures during simulated Bier's block.
Venous pressures in the forearm veins during the simulated performance of intravenous regional analgesia were measured. Pressures obtained equalled or exceeded the recommended occluding pressure of the tourniquet. This finding is proposed as one of the possible reasons for the occasional observation that convulsions may occur during Bier's block despite the presence of an intact tourniquet system.
D000765:Anesthesia, Conduction; D000771:Anesthesia, Intravenous; D005542:Forearm / Q000098:blood supply; D006801:Humans; D009407:Nerve Block; D012965:Sodium Chloride; D014111:Tourniquets; D014680:Veins / Q000502:physiology; D014690:Venous Pressure
D012965:Sodium Chloride