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LA REGIONE PERIOCULARE NELL’INVECCHIAMENTO DEL VOLTO Prof. Francesco Carinci Dr. Anna Avantaggiato La regione perioculare è un punto focale dell’estetica facciale. Il ruolo preminente della vista fra gli organi di senso influenza la percezione dell’espressività dell’intera regione, ed è non solo della poesia, la convinzione che gli occhi raccontino molto di ciò che noi siamo. Per questo le alterazioni della regione perioculare, rappresentano motivo di consultazione medico-estetica anche per pazienti relativamente giovani. LA REGIONE PERIOCULARE NELL’INVECCHIAMENTO DEL VOLTO Prof. Francesco Carinci Dr. Anna Avantaggiato Regione perioculare: confini La regione perioculare appartiene, con la fronte, al terzo superiore del volto ed è sottesa dal sopracciglio, dalla regione temporale, dalla guancia nelle sue porzioni malare e zigomatica e dalla radice del naso. ANATOMIA J Craniofac Surg. 2015 Apr 30. [Epub ahead of print] Comparison Among Three Different Fixation Techniques in Temporal Brow Lift Surgery. Pascali M, Avantaggiato A, Bocchini I, Carinci F, Cervelli V. Pre-surgery 30,00 mm 28,00 26,00 Average 24,00 Endotine Mesh 22,00 Suture 20,00 18,00 Head Tail 1 year 30,00 30,00 28,00 28,00 26,00 Average 24,00 Endotine Mesh 22,00 Suture 20,00 mm mm Post-surgery Body 26,00 Average 24,00 Endotine Mesh 22,00 Suture 20,00 18,00 18,00 Head Body Tail Head Body Tail Guancia I solchi naso giugale e naso labiale sono i limiti superiore ed inferiore del cuscinetto adiposo della guancia. Lo spostamento verso il basso di questo grasso priva la rima orbitaria di parte del suo ricoprimento. Anche il SOOF, strato di grasso sottostante l’orbicolare scivola in basso e l’orbicolare stesso tende ad assottigliarsi superiormente . Quindi la zona lungo la rima orbitale mediale rimane praticamente senza tessuti molli tra periostio e cute tranne che per l’orbicolare che qui ha la sua inserzione periostale. La progressiva ptosi adiposa causa l’approfondimento dei solchi naso labiali Invecchiamento perioculare:segni -Abbassamento della coda del sopracciglio -Allungamento e svuotamento palpebrale -Appiattimento dell’area infraorbitale-malare -Comparsa dei solchi naso-giugale ed infrapalpebrale. Barton's grading system based on anatomic analysis Hirmand's classification system of the tear trough deformity based on clinical evaluation INVECCHIAMENTO=ATROFIA Cellulare Arch Dermatol. 2008 May;144(5):666-72 Looking older: fibroblast collapse and therapeutic implications. Fisher GJ, Varani J, Voorhees JJ. Morfologica La cavità orbitaria cambia la sua forma e l’area infra orbitaria si appiattisce. La perdita di supporto osseo produce ptosi dei tessuti molli. Intrinsic aging induces the down-regulation of transforming growth factor-β (TGF-β) and connective tissue growth factor (CTGF) in the TGF-β-procollagen axis and leads to decreased synthesis of type I collagen. In photoaging, UV irradiation from the sun generates reactive oxygen species (ROS) which activate growth factor and cytokine receptors on fibroblasts in the skin. Activated receptors stimulate p38 and JNK, members of the MAPK signaling cascade, and c-Fos and c-Jun subsequently combine to form AP-1 which stimulates matrix metalloproteinase (MMP) transcription. Increased MMP transcription accelerates the degradation of collagen which induces dermal matrix alterations. ROS generation and AP-1 formation induced by photoaging can also lead to decreased collagen synthesis by blocking TGF-β type II receptor/Smad signaling. ROS can also be generated from oxidative metabolism and accumulate during the intrinsic aging process. INVECCHIAMENTO Lab Anim Res. 2011 Mar;27(1):1-8. doi: 10.5625/lar.2011.27.1.1. Epub 2011 Mar 25. Molecular mechanisms and in vivo mouse models of skin aging associated with dermal matrix alterations. Hwang KA,Yi BR, Choi KC. La morfologia ad “Y” della regione della guancia è la conseguenza della ptosi dei tessuti molli prodotta dall’atrofia ossea, muscolare, adiposa e cutanea e contrastata dall’ancoraggio dei legamenti. Gli occhi “cerchiati” sono la conseguenza di ombre crate dal cambiamento di posizione di pelle, tessuti sottocutanei, orbicolare e SOOF. RIMODELLAMENTO DELL’ORBITA La struttura scheletrica orbitale si riassorbe a livello supero-mediale ed infero-laterale. Changes in the Facial Skeleton With Aging: Implications and Clinical Applications in Facial Rejuvenation Aesth Plast Surg (2012) 36:753–760 Bryan Mendelson • Chin-Ho Wong Invecchiamento Muscolare Solco naso-giugale Tear trough Orbicolare pretarsale Orbicolare presettale Orbicolare orbitale The aesthetically attractive lower eyelid should display a relatively smooth transition between the pre-septal and orbital portions of the orbicularis oculi muscle and continue into the upper malar region without a definable transition point. (Glaser et al 2010) Dzifa S. Kpodzo, Foad Nahai, and Clinton D. McCord Malar Mounds and Festoons: Review of Current Management Aesthetic Surgery J. 2014, Vol. 34(2) 235–248 LEGAMENTI Ligamento zigomatico- cutaneo Osso e periostio malare sono connessi alla cute da un ligamento che attraversa il grasso sottomuscolare e sottocutaneo e che è responsabile della formazione delle borse malari. Altri legasmenti non raggiungono la cute ma collegano il periostio allo SMAS come nel caso del legamento orbitale che connette il periostio all’orbicolare. The Composite Lift (HAMRA) preserves most (possibly all) of the fat beneath the eye and repositions it (with its thin but strong cover, the orbital septum) over the orbital rim, smoothing the transition from lower eyelid to cheek. Fat compartments in the upper eyelid. The ROOF lies more laterally. This remains on the surface, between the orbicularis and the periosteum, on the outside of the orbital rim and tends to descend also on the inside of the eyelid, between the orbicularis and the septum. The preaponeurotic fat pad, which rarely has to be excised, is found below the septum, leaning on the elevator aponeurosis. The lighter coloured nasal fat is situated more medially, next to the elevator aponeurosis, and often bulges forming an unattractive bag, which can be removed. (Botti G.) Saudi Journal of Ophthalmology (2012) 26, 441–443 Imaging of eyelid lymphatic drainage Julio C. Echegoyen; Kristin E. Hirabayashi,; Ken Y. Lin,; Jeremiah P. Tao. Traditional descriptions of lymphatic drainage show eyelids emptying into the submandibular or preauricular basin. However recent studies based on in vivo lymphatic imaging (lymphoscintigraphy) show a possible predilection for the preauricular basin. Results: The preauricular basin was the site of focal radioactive uptake in all 15 patients. Avantaggiato A., Carinci F. Mesenchymal Stem Cells Researches and Clinical Applications in Facial Aging Current Tissue Engineering, 2015, 4, 000-000 1 2211-5420/15 $58.00+.00 © 2015 Bentham Science Publishers Livelli terapeutici Osseo (innesti) Neuromuscolare (BoNT-A) Sottocutaneo (fat grafts/stem cells) Cutaneo -Epidermic0 (Cosmeceutici, Peelings, Dermoabrasione, Laser resurfacing) -Dermico (Radiofrequenza, Biostimolazione, Biorivitalizzazione, Fillers) Osseo J Craniofac Surg. 2005 Jul;16(4):526-30. Clinical outcome of 285 Medpor grafts used for craniofacial reconstruction. Cenzi R, Farina A, Zuccarino L, Carinci F. Aesthetic Plast Surg. 2012 Aug;36(4):917-27. doi: 10.1007/s00266-012-9911-4. Epub 2012 Jun 9. Facial reconstruction using porous highdensity polyethylene (medpor): long-term results. Niechajev I Implantation of porous polyethylene in the facial region is a safe procedure. Currently, Medpor seems to be the best alloplastic material available as a facial bone substitute. It is long-lasting, with a low frequency of complications, morbidity similar to procedures involving autologous grafts, and high overall patient satisfaction. Neuromuscolare BoNT-A exerts its predominant action in the peripheral nervous system. Diffusion has been reported to contralateral facial muscles upon unilateral BoNT-A application as well as remote spread from the site of injection, even to arm muscles, upon facial muscle injection. Alimohammadi M et al. Acta Derm Venereol. 2014 Jan;94(1):32-7. doi: 10.2340/00015555-1647. Documented possibilities of still unknown pharmacological BoNT-A effects emphasize the importance of correct administration of the toxin in terms of injection-points, dose selection, and appropriate effect surveillance Dose and injection technique must be adjusted and individualized based on the variable anatomy and function/mass of muscles in the forehead and upper face as well as on patient goals. Optimal aesthetic outcomes can be achieved by skillfully balancing the opposing effects of the frontalis muscle and its intricate interactions with the procerus, corrugator supercilii, depressor supercilii, and orbicularis oculi muscles. Aesthetic Plast Surg. 2013 Oct;37(5):975-83. doi: 10.1007/s00266-013-0178-1. Epub 2013 Jul 12. Understanding the functional anatomy of the frontalis and glabellar complex for optimal aesthetic botulinum toxin type A therapy. Lorenc ZP, Smith S, Nestor M, Nelson D, Moradi A. Acta Derm Venereol. 2014 Jan;94(1):32-7. doi: 10.2340/00015555-1647. Correlation of botulinum toxin dose with neurophysiological parameters of efficacy and safety in the glabellar muscles: a double-blind, placebo-controlled, randomized study. Alimohammadi M, Andersson M, Punga AR. Study design: The same injection volume, 0.1 ml, was given to all subjects in 5 standardized injection points using electromyography (EMG)-guided technique with disposable hypodermic needle electrodes to ensure central muscle injection. Group I received 1 unit/injection (total 5 units); group II received 2 units/injection (total 10 units); group III received 4 units/injection, (total 20 units); and group IV received 0.9%NaCl/injection. La riduzione dei potenziali di azione motori registrati nel corrugatore correla con la dose di BoNT-A. Comparsa di abnorme attività EMG spontanea 2-4 settimane dopo l’iniez. che depone per una denervazione farmac. L’iniezione nell’area glabellare provoca disturbo della trasmissione muscolare (subclinico) anche nell’orbicolare a 2 sett. senza segni EMG. -Grandezza del muscolo e dosaggio possono spiegare la variabilità dell’effetto in soggetti diversi -L’effetto massimo per dosaggi di 5 o 10 U totali si ottiene più tardivamente (4 settimane) -Il reale effetto neurofisiologico dura molto di più dei 3-4 mesi previsti, infatti nei gruppi con dosaggi di 10 o 20 U nessun soggetto ha ottenuto una completa restitutio a 24 settimane. La completa reinnervazione si è avuta solo nel gruppo con dosaggio di 5 U e questa è avvenuta a 12 settimane. -La maggior differenza estetica tra il gruppo delle 5 U rispetto a quello delle 20 U è stata che in quest’ultimo si è avuto un effetto sulla parte mediale del frontale. Adiposo/Rigenerativo In the mid-90s, Coleman noted that the positive effect of structural fat grafting was beyond the filling effect; in fact, a visible improvement in skin texture, pigmentation and tropism was always observed after his meticulous procedure Coleman SR. Structural fat grafting: more than a permanent filler. Plast Reconstr Surg 2006 Sep;118(3 Suppl):108S-120S. The use of more and more thinner cannulas for harvesting and reinjecting adipose tissue has revealed that although the positive effect is always present, in nanofat, after the emulsification of the fat, there is disappearance of vital adipocytes. Thus, clinical improvement must be linked to the mesenchymal stem cell component that has been typed in this method Syringe with microfat in a condition before the emulsi!cation process and syringe with a homogeneous fat emulsion after the emulsi!cation process. Note the dfference in color and consistency. A standard 3-mm Mercedes type liposuction cannula with large side holes (2 × 7 mm) and a 3-mm multiport cannula, containing several sharp side holes of 1-mm diameter. The sharp side holes augment the harvesting yield. Tonnard P, Verpaele A, Peeters G, Hamdi M, Cornelissen M, Declercq H. Nanofat grafting: basic research and clinical applications. Plast Reconstr Surg 2013 Oct;132(4):1017-1026. Current Tissue Engineering 2015, 4, 000-000 12211-5420/15 $58.00+.00 © 2015 Bentham Science Publishers Mesenchymal Stem Cells Researches and Clinical Applications in Facial Aging Anna Avantaggiato and Francesco Carinci A 33-year-old woman with lower eyelid blepharochalasis and dark coloration of the lower eyelid skin extending into the nasojugal groove. (Right) Seven months after fat redraping, blepharoplasty, and intradermal injection of 1.6 cc nanofat in the lower eyelid and pigmented nasojugal groove. Cutaneo -Epidermic0 Cosmetici e cosmeceutici, Peelings e Dermoabrasione, Laser resurfacing -Dermico Radiofrequenza, Biostimolazione, Biorivitalizzazione, Fillers PROPRIETÀ DI SOSTANZE VEGETALI: (Da U. Borellini “Cosmetologia” 2010 PROTETTIVA SOLARE: alcuni oli e burri vegetali contengono frazioni insaponificabili in grado di filtrare le radiazioni solari (oli di oliva, di avocado, di sesamo, di soia, di crusca di riso e del burro di karité che è il più attivo). ANTIRUGHE ED ELASTICIZZANTE: estratti contenenti fitoormoni e saponine come quelli del ginseng e del luppolo. EPITELIZZANTE CHERATOPLASTICA: è caratteristica di piante contenenti allantoina, flavonoidi e acidi triterpenici, come la centella asiatica, la liquirizia (acido glicirretico),la consolidala, l’echinacea e la calendula. ANTIEDEMIGENA DRENANTE: l’escina è una saponina presente nei semi di ippocastano che agisce sulla permeabilità e fragilità capillare, anche l’esperidina sinergicamente con la vitamina C è il flavonoide degli agrumi e protegge l’integrità dei vasi sanguigni. LENITIVA: capacità di alleviare uno stato infiammatorio cutaneo caratteristica di vegetali contenenti azuleni, flavonoidi e mucillagini come la camomilla, la malva, la calendula, i fiori d’arancio, l’aloe, l’altea e la passiflora. ANTIARROSSAMENTO: proprietà delle saponine triterpeniche e steroidiche e quindi dalle ruscogenine contenute nel rusco, dagli antocianosidi del mirtillo, dal gingko e dall’hammamelis. SCHIARENTE: Achillea millefoglie, cetriolo, limone e uva ursina. COSMECEUITICI Vitamine A, C ed E Fitoestrogeni Acido Lipoico (Tioctic acid) DMAE (dimetilaminoetanolo) Peptidi biomimetici (botox like) Although the role of acetylcholine as a neurotransmitter is well known, growing evidence points to acetylcholine as a ubiquitous cytokine-like molecule that regulates basic cellular processes such as proliferation, differentiation, locomotion, and secretion in a paracrine and autocrine fashion. Indeed, this modulatory role may contribute to the cutaneous activity of DMAE. Although its mechanisms of action in the skin remain to be elucidated, evidence suggests that the skin is an active site of acetylcholine synthesis, storage, secretion, metabolism, and receptivity. Muscarinic acetylcholine receptors have been localized to keratinocytes, melanocytes and dermal fibroblasts, whereas nicotinic acetylcholine receptors have been found in keratinocytes. Contiene due peptidi biomimetici miorilassanti. Si tratta in questo caso del GABA (acido gamma-ammino butirrico) e dell'Acetyl Hexapeptide-8. Aesthetic Plast Surg. 2007 Nov-Dec;:711-8. Dimethylaminoethanol affects the viability of human cultured fibroblasts. Gragnani A, Giannoccaro FB, Sobral CS, Moraes AA, França JP, Ferreira AT, Ferreira LM. Dimethylaminoethanol reduced the proliferation of fibroblasts, increased cytosolic calcium, and changed the cell cycle, causing an increase in apoptosis in cultured human fibroblasts. Pharmazie. 2009 Dec;64(12):818-22.In vivo skin effects of a dimethylaminoethanol (DMAE) based formulation. Tadini KA, Campos PM. Histometric evaluations showed that formulations with or without DMAE increased the viable epidermis thickness, but only the DMAE-supplemented formulation led to increased dermal thickness. DMAE also induced increase in collagen fiber thickness, which was observed in the histopathological study. High Potency Eye Lift A hydrating treatment to lift, brighten and tighten the eye area. With Phospholipids, Pycnogenol and DMAE. .5 fl oz / 15 mL Am J Clin Dermatol. 2005;6(1):39-47. The role of dimethylaminoethanol in cosmetic dermatology. Grossman R. In a randomized clinical study, 3% DMAE facial gel applied daily for 16 weeks has been shown to be safe and efficacious (p < 0.05) in the mitigation of forehead lines and periorbital fine wrinkles, The acute skinfirming effects have been confirmed by measures of cutaneous tensile strength L’unguento contiene almeno 67 unità/grammo di attività biologica. Un'unità di attività biologica corrisponde alla concentrazione di estratto di Saccharomices Cerevisiae (espressa in mg/ml) necessaria per incrementare il consumo di ossigeno di 1 mg di pelle addominale di topo secca di 1% alla fine del periodo di 1 ora. L'estratto di cellule di Saccharomices Cerevisiae contiene metaboliti cellulari di basso peso molecolare quali amminoacidi e peptidi di peso molecolare tra 6000 e 12000 d, composti in maggioranza da acido glutammico. Insieme a questi sono presenti anche carboidrati, composti da trealosio principalmente e da glucosio. È stato accertato che alcuni di questi componenti sono naturalmente sintetizzati dalle cellule epiteliali quando esse vengono sottoposte a lesioni di origine meccanica o fisiologica. XAF5 selectively binds a G protein-coupled receptor and modifies a key metabolic pathway involved in lipid metabolism and adipocyte maturation. XAF5 directly inhibits adipocytes in cell culture and reduces adiposity in five preclinical models and around the human eye. XAF5 Ointment is currently in Phase 2 development for reduction of steatoblepharon (excess eyelid fat), submental fat, and for other indications. Peelings Charitomeni Vavouli, Andreas Katsambas, Stamatis Gregoriou, Anca Teodor, Carmen Salavastru, Adina Alexandru, & George Kontochri Chemical peeling with trichloroacetic acid and lactic acid for infraorbital dark circles Journal of Cosmetic Dermatology, 12, 204—209, 2013 Wiley Periodicals, Inc. The combination of trichloroacetic TCA 3.75% and lactic acid 15% showed encouraging results on improving periorbital hyperpigmentation Laser: Xantelasmi Maschio aa 38 pre 15 gg post Er Yag Laser: Xantelasmi Femmina 45 aa pre 15 gg post Er Yag Radiofrequenza Histology of the human ex vivo specimen after treatment with 50% of the maximum device working power (27.50 W): the thickening of the collagen fibers in the papillary dermis is appreciated, whereas the blood vessels in the dermal papillae do not display any alteration (box). Light microscopy, hematoxylin and eosin staining, bar 400 lm. Nicoletti et al. Photomedicine and Laser Surgery 2014 Singola seduta Pre Post Ciclo di terapie Pre Post Singola seduta Pre Post Ciclo di terapie Pre Post Avantaggiato A, Palmieri A, Carinci F, Pasin M, Bertuzzi GL. Biostimulation and biorevitalization: effects on human skin fibroblasts. Annals of Oral & Maxillofacial Surgery 2013 Mar 01;1(2):11. BIOSTIMULATION is a stimulation of the anabolic functions of dermal fibroblasts such as replication, protein synthesis and production of extracellular matrix components (ECM). BIOREVITALIZATION is a direct supplementation of hyaluronic acid (HA) alone or added to other molecules (i.e. vitamins). In order to verify the different metabolic effects of BS and BR fibroblast cell cultures, RNA extraction, cDNA synthesis and PCR were performed. Results BS and BR produce different effects in fibroblast cell cultures, thus showing that they are different therapies. Neutrophil elastine is activated by BS and to a lesser extent by BR. Hyaluronan synthase 1 is activated to a higher extent by BR using the medical device with the lowest HA content. Neutrophil elastase, responsible for the degradation of one of the fibrillar components of ECM, is activated to a lesser extent by BS. Rejuvenation Res. 2014 Jun;17(3):285-90. doi: 10.1089/rej.2013.1511. Epub 2014 Jun 11. Fibroblasts behavior after N-acetylcysteine and amino acids exposure: extracellular matrix gene expression. Avantaggiato A, Palmieri A, Bertuzzi G, Carinci F. Up-regulation of elastin-, hyaluronic acid-, and GDF6encoding genes supports the evidence of clinical improvement induced by NAC biostimulation in the prevention and correction of skin aging. Aesthetic Plast Surg. 2014 Oct;38(5):1011-6. doi: 10.1007/s00266-014-0380-9. Epub 2014 Jul 16. Role of antioxidants in dermal aging: an in vitro study by q-RT-PCR. Avantaggiato A, Bertuzzi G, Vitiello U, Iannucci G, Pasin M, Pascali M, Cervelli V, Carinci F. Rejuvenation Res. 2015 Feb 1. [Epub ahead of print] COMPARISON AMONG BIO-REVITALIZING INJECTIVE PRODUCTS: A STUDY ON SKIN FIBROBLAST CULTURES. Avantaggiato A, Girardi A, Palmieri A, Pascali M, Carinci F. Human dermal fibroblasts were seeded on a layer of five different commercial medical devices containing 6.2, 10, 10bis, 13 and 20 % respectively of HA. The products differ not only in the HA concentrations but in the content and quality of other ingredients, moreover one of these products contains cross-linked HA. Rejuvenation Research Editor-in-Chief: Aubrey D.N.J. de Grey ISSN: 1549-1684 • Online ISSN: 15578577 • Published Bimonthly Latest Impact Factor* is 3.931 *2013 Journal Citation Reports® published by Thomson Reuters, 2014 HA concentration seems to be inversely correlated to the Elastin genes activation. As regard to Neutrophil Elastase gene, the two medical devices with the higher concentration in HA displayed the greater effect. Genes encoding for the HA synthase 1, Hyaluronidase 1 and Desmoplakin are enhanced but the HA content of the different products seems to be not directly related to genic activation so the explanation for the differences must be researched in further elements that are distinctive of the specific device. Arch Dermatol. 2008 May;144(5):666-72 Looking older: fibroblast collapse and therapeutic implications. Fisher GJ, Varani J, Voorhees JJ. Acido jaluronico cross-linkato=riempitivo inerte? L’azione meccanica di stiramento prodotta dall’iniezione intradermica di un filler a base di HA stimola la produzione di collagene. Biopsie cutanee a 4 settimane dall’iniezione di CLHA (B) e soluzione salina (A) (A) Saline vehicle (control) or (B) cross-linked hyaluronic acid filler (CLHA) L’immunoistochimica evidenzia la presenza si procollagene tipo I (rosso), le frecce nere indicano l’HA, le bianche i fibroblati attivati e distesi . Le crocette nere evidenziano fibrille collagene stipate probabilmente derivate dalla conversione del procollagene I in collagene I. Sagittal diagram of the prezygomatic space bordered superiorly by the orbitomalar ligament and inferiorly by the malar septum and zygomatico-cutaneous ligament. The malar septum runs from the inferior orbital rim to just above the zygomaticocutaneous ligament, dividing the prezygomatic space into preperiosteal fat and suborbicularis oculi fat. (Kpodzo et al. Aesthetic Surgery J. 2014, Vol. 34(2) 235–248) Iniezione con ago 30 G in boli sottoperiostei NASHA gel 15 mg/ml, lidocaina 3mg J Cosmet Dermatol. 2014 Mar;13(1):79-84. doi: 10.1111/jocd.12075. Under eye infraorbital injection technique: the best value in facial rejuvenation. Shetty R. Injection of filler at infraorbital points could instantly lift the face up, elevating the point of shadow and shifting the point of highest light reflection to the ideal malar point. 0.5 + 0.5 ml Pre Dopo 7 gg Recommendations for hyaluronic acid filler to be injected depending on the grade of severity Sharad J. Dermal Fillers for the Treatment of Tear Trough Deformity: A Review of Anatomy, Treatment Techniques, and their Outcomes. Journal of Cutaneous and Aesthetic Surgery. 2012;5(4):229-238. doi:10.4103/0974-2077.104910. Marking of tear trough filler (injection points and direction of needle) Philippe Berros, M.D. Lilian Lax, M.D. Frédéric Bétis, Ph.D. Hyalurostructure Treatment: Superior Clinical Outcome through a New Protocol—A 4-Year Comparative Study of Two Methods for Tear Trough Treatment (Plast. Reconstr. Surg. 132: 924e, 2013.) Complications on periorbital injections. Lump or surface irregularities (above, left), hematoma (above, right), edema (center, left) and its treatment with hyaluronidase (center, right), and migration of hyaluronic acid (below, left), and its treatment with hyaluronidase (below, right). Cosa fa la differenza? In tutti i casi è stato usato lo stesso HA con cannula 25 G previa preincisione con ago 23 G, massaggio e raffreddamento post per 5 min e raccomandazione di non praticare sport o SPA per le 48 ore successive, nei casi con più complicanze era stata praticata anest. locale pre e crema antibiotica corticost. post Nel gruppo con meno complicanze invece: -Raffreddamento pre- iniezione -Posizione del foro di accesso nella regione malare 10 mm sotto il bordo orbitario anziché immediatamente sotto la rima orbitaria lateralmente ( canto est.) -Iniezione lenta in miniboli -Massaggio leggero -1mg/kg cortisone per os per 48h dopo il tratt. Plast Reconstr Surg. 2012 Apr;129(4):995-1012. doi: 10.1097/PRS.0b013e3182442363. Blindness following cosmetic injections of the face. Lazzeri D, Agostini T, Figus M, Nardi M, Pantaloni M, Lazzeri S. Twenty-nine articles describing 32 patients were identified. In 15 patients, blindness occurred after injections of adipose tissue; in the other 17, it followed injections of various materials, including corticosteroids, paraffin, silicone oil, bovine collagen, polymethylmethacrylate, hyaluronic acid, and calcium hydroxyapatite. CONCLUSIONS: Some precautions may minimize the risk of embolization of filler into the ophthalmic artery following facial cosmetic injections. Intravascular placement of the needle or cannula should be demonstrated by aspiration before injection and should be further prevented by application of local vasoconstrictor. Needles, syringes, and cannulas of small size should be preferred to larger ones and be replaced with blunt flexible needles and microcannulas when possible. Low-pressure injections with the release of the least amount of substance possible should be considered safer than bolus injections. The total volume of filler injected during the entire treatment session should be limited, and injections into pretraumatized tissues should be avoided. Actually, no safe, feasible, and reliable treatment exists for iatrogenic retinal embolism. Nonetheless, therapy should theoretically be directed to lowering intraocular pressure to dislodge the embolus into more peripheral vessels of the retinal circulation, increasing retinal perfusion and oxygen delivery to hypoxic tissues. Plast Reconstr Surg. 2014 Dec;134(6):1197-201. doi: 10.1097/PRS.0000000000000754. Blindness caused by cosmetic filler injection: a review of cause and therapy. Carruthers JD, Fagien S, Rohrich RJ, Weinkle S, Carruthers A. Vascular occlusion causing blindness is a rare yet greatly feared complication of the use of facial aesthetic fillers. The authors performed a review of the aesthetic literature to ascertain the reported cases of blindness and the literature reporting variations in the vascular anatomy of the human face. The authors suggest a small but potentially helpful addition to the accepted management of the acute case. Cases of blindness, mostly irreversible, from aesthetic filler injections have been reported from Asia, Europe, and North America. Autologous fat appears to be the most frequent filler causing blindness. Some cases of partial visual recovery have been reported with hyaluronic acid and calcium hydroxylapatite fillers. The sudden profusion of new medical and nonmedical aesthetic filler injectors raises a new cause for alarm about patient safety. The published reports in the medical literature are made by experienced aesthetic surgeons and thus the actual incidence may be even higher. Also, newer injectors may not be aware of the variations in the pattern of facial vascular arborization. The authors present a summary of the relevant literature to date and a suggested helpful addition to the protocols for urgent management. GRAZIE PER L’ATTENZIONE