• Anesthesia and analgesia · Jun 2007

    Randomized Controlled Trial Comparative Study

    Spinal perianal block: a prospective, randomized, double-blind comparison with spinal saddle block.

    • Medhat R Wassef, Emil I Michaels, Jeffrey M Rangel, and Arkadiy T Tsyrlin.
    • Department of Anesthesiology, Mount Sinai School of Medicine, Elmhurst Hospital, New York, USA. medhatrwassef@verizon.net
    • Anesth. Analg. 2007 Jun 1;104(6):1594-6, table of contents.

    BackgroundIn this prospective, randomized, double-blind study, we evaluated whether a very low dose of spinal bupivacaine could be sufficient for safe performance of short perianal surgery.MethodsEighty patients were randomly assigned to receive hyperbaric bupivacaine doses of either 1.5 mg (n = 40) or 6.0 mg (n = 40).ResultsThe lower dose produced satisfactory anesthesia with a more limited block (median S4; P < 0.01), earlier time to ambulation (98 vs 147 min; P < 0.01), and hospital discharge (126 vs 249 min; P < 0.01), compared with the higher spinal dose.ConclusionsThe use of 1.5 mg spinal bupivacaine can be successful for short perianal surgery.

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