Alar Necrosis after Facial Injection of Hyaluronic Acid

Blood Aspiration Test for Cosmetic Fillers to Prevent Accidental Intravascular Injection in the Face

“…The symptoms usually appear immediately but may be delayed until the day after injection. 20 The most catastrophic complications include blindness and brain injury. 21 Iatrogenic retinal artery obstruction may occur when pressure is applied to the plunger of a syringe and the needle is embedded in the arterial lumen, forcing a bolus of the syringe contents into the artery.…”

Microfat Grafting in Nasal Surgery

“…However, if these materials are injected into the nose by inexperienced individuals, many complications can occur. 9,[39][40][41][42][43][44][45][46][47][48][49] In general, hyaluronic acid injections are currently the preferred option; they are readily available and result in relatively fewer complications than other fillers. 5,50-57 However, hyaluronic acid is not free of complications.…”

Supermicrosurgery and hyaluronic acid: Experimental feasability study of a new method

“…A key question demanding a persuasive response nonetheless remains unanswered: what is the risk entailed by vascular applications of hyaluronic acid fillers? Given the fact that an increasingly high number of cutaneous necroses have been reported following injection of small amounts of HA [21][22][23], how can it be safely deployed in practically microscopic vessels?…”