• Saeed Chowdhry, Lynn Seidenstricker, Damon S Cooney, Ron Hazani, and Bradon J Wilhelmi.
• University of Louisville, Louisville, KY, USA. sachowdhry22@gmail.com
• Plast. Reconstr. Surg. 2010 Dec 1;126(6):2031-4.

BackgroundEpinephrine in digital blocks has been condemned by traditional medical theory. The authors provide a retrospective review of 1111 cases involving digital block anesthesia with epinephrine in conjunction with an extensive literature review.MethodsThe authors conducted a retrospective review of 1111 cases involving digital and hand surgery. Observations were made concerning the location of and indication for surgery, age, sex, type of block used, type and dose of anesthetic, use of epinephrine and concentration, use of a tourniquet, follow-up, and complications. Dorsal and transthecal techniques were used exclusively. Patients with vascular compromise did not receive epinephrine and were excluded from the study.ResultsOne thousand one hundred eleven cases were reviewed, distributed among 692 male patients and 419 female patients. Sites of surgery ranged throughout the hand and all fingers for a variety of indications. Five hundred patients received injections of 1% plain lidocaine with a dosage range of 2 to 10 cc and an average of 5.7 cc. Six hundred eleven patients received injections of 1% lidocaine with epinephrine (1:100,000) in a dose range of 0.5 to 10 cc and an average dose of 4.33 cc. Nine hundred eighty-six patients (88.75 percent) followed up in the clinic. No patients suffered from digital gangrene in the epinephrine group.ConclusionsAfter reviewing 1111 cases, there were no complications associated with the use of epinephrine in digital blocks. The authors suggest that correct application of epinephrine in digital blocks is appropriate, and defend its use.

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