Further information from the reporter regarding event, product, or patient details has been requested.No additional information is available at this time.The event of embolization is a physiological complication and analysis of the device generally does not assist allergan in determining a probable cause for this event.Device labeling: [warnings]: usage method: 1.*do not inject into blood vessels.[it may cause occlusion of blood vessels, embolization, ischemia, or infarction.] 2.*use the product with caution when injecting into the regions where the skin is typically thin and there is less collateral circulation (such as inferior to the orbital rim, the tear trough, periorbital area (eg, crow's feet lines), glabellar and forehead.).[temporary and permanent vision abnormalities/blindness, leading to stroke (cerebral ischemia, cerebral hemorrhage, cerebral infraction), necrosis (of nasal alar etc.) and damage to underlying facial structures may be caused by mis-injection into blood vessels or compress etc.Of blood vessels and nerves.] use shall be based on thorough understanding of the facial anatomy of the injection area.Immediately stop the injection if a patient exhibits any signs or symptoms associated with injection into a blood vessel (such as changes in vision, signs of a stroke, blanching of the skin, or unusual pain) during or shortly after the procedure.Also, since the rheology value for this product is higher (harder) than that for juvéderm vista ultra, and its risk of compression of blood vessels and/or nerves is higher, caution must be exercised for injection into periorbital area (eg, crow's feet lines), glabellar and forehead with an option of switching to juvéderm vista ultra.
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