Case reference number (b)(4) is a spontaneous report sent on 11-nov-2020 by a physician which refers to a patient of an unknown age and gender.No information about medical history, concomitant medication, history of allergies or previous filler treatments has been provided.On an unknown date, the patient received treatment with restylane nos (unknown amount, lot number, injection technique and needle type) for filling of the nasogenian sulcus.3 hours later, on an unknown date, the patient experienced alterations, angular vein obstruction (vascular occlusion).48 hours after the procedure, the patient returned to medical consultation.As a corrective treatment, the patient received hyaluronidase [hyaluronidase], clexane [enoxaparin sodium] and aas [acetylsalicylic acid], but without improvement.On unknown date, the patient underwent to ultrasound not for diagnostic purpose but performed hyaluronidase infiltration.According the reporter, patient started receiving treatment 72 hours after the procedure.On unknown date, the patient was hospitalized and received injection of hyaluronidase and prostaglandin [alprostadil].Outcome at the time of the report: alterations, angular vein obstruction was unknown.
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