Retrospective Review of 500 Patients Treated With AbobotulinumtoxinA
September 2010 | Volume 9 | Issue 9 | Original Article | 1081 | Copyright © 2010
Oscar Hevia MD
Background: Prior international clinical experience and domestic controlled clinical trials provide useful guidance for dosing of a new botulinum toxin type A, abobotulinumtoxinA. Nonetheless, aftermarket experience is paramount in providing confirmatory “real world” information on any recently introduced drug. This report describes the incorporation of abobotulinumtoxinA into an established clinical practice that previously only utilized onabotulinumtoxinA for facial rejuvenation Description: Retrospective review of 500 patients who received abobotulinumtoxinA injections. Results: A total of 736 abobotulinumtoxinA treatments were administered to 500 patients. The most common areas treated were corrugators, “crow’s feet,” frontalis, brow and platysma, respectively. A dose conversion ratio of 1:2.67 (onabotulinumtoxinA : abobotulinumtoxinA) was determined. The majority of adverse events were considered to be mild and self-limiting. There were three (0.6%) cases of ptosis. Conclusion: Since its recent approval by the U.S. Food and Drug Administration (FDA), experience with abobotulinumtoxinA is evolving. Utilizing a dose conversion ratio of 1:2.67 units (onabotulinumtoxinA: abobotulinumtoxinA) and the same injection techniques, one can safely and effectively incorporate this new neurotoxin into his or her practice.
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