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Vascular complications are rare and serious side effects, although they are widely known and documented in the context of dermal filler injections.They are related to the accidental injection of the product inside a blood vessel, leading to its occlusion.The local deprivation of blood supply causes tissue anoxia.If enough hyaluronidase is injected on time, symptoms can be fully resolved without sequalae.If the vascular complication is not detected, diagnosed, and treated promptly, it can lead to skin necrosis.The risk of such adverse reactions is mentioned in the instructions for use of rha 3.
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This case occured outside of the usa, in australia.The australian affiliate notified teoxane geneva of an adverse event on 05-mar-2024.A patient was injected with 1 ml of teosyal rha 3 in the oral commissures, into the lips, and the cutaneus lines on (b)(6) 2024.The injection was done with the microbolus technique, subdermally, using the needle provided in the box.Immediately after the injection, the injector noticed a blanching and decided to massage the area using a vibrata tool.The capillari refil was slow, and a bruise started to appear in the left top lip tubercle. as treatment, 500 i.U.Of hyaluronidase were injected into the lip, and an immediate restoration of the capillari refil was observed.The injector chased the vessel to the top lip tubercle and lateral philtrum column, injecting anywhere duskiness or reticulation was present.At the time we received the initial information, the bruise on the lip had completely resolved. on (b)(6) 2024, the injector confirmed the diagnosis that the patient presented a vascular occlusion.Thus, the case was assessed as reportable to the health authorities.According to the resolution of symptoms, this case was considered closed.
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