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Efthimiou TN, Hernandez MP, Elsenaar A, Mehu M, Korb S. Application of facial neuromuscular electrical stimulation (fNMES) in psychophysiological research: Practical recommendations based on a systematic review of the literature. Behav Res Methods 2024; 56:2941-2976. [PMID: 37864116 PMCID: PMC11133044 DOI: 10.3758/s13428-023-02262-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/29/2023] [Indexed: 10/22/2023]
Abstract
Facial neuromuscular electrical stimulation (fNMES), which allows for the non-invasive and physiologically sound activation of facial muscles, has great potential for investigating fundamental questions in psychology and neuroscience, such as the role of proprioceptive facial feedback in emotion induction and emotion recognition, and may serve for clinical applications, such as alleviating symptoms of depression. However, despite illustrious origins in the 19th-century work of Duchenne de Boulogne, the practical application of fNMES remains largely unknown to today's researchers in psychology. In addition, published studies vary dramatically in the stimulation parameters used, such as stimulation frequency, amplitude, duration, and electrode size, and in the way they reported them. Because fNMES parameters impact the comfort and safety of volunteers, as well as its physiological (and psychological) effects, it is of paramount importance to establish recommendations of good practice and to ensure studies can be better compared and integrated. Here, we provide an introduction to fNMES, systematically review the existing literature focusing on the stimulation parameters used, and offer recommendations on how to safely and reliably deliver fNMES and on how to report the fNMES parameters to allow better cross-study comparison. In addition, we provide a free webpage, to easily visualise fNMES parameters and verify their safety based on current density. As an example of a potential application, we focus on the use of fNMES for the investigation of the facial feedback hypothesis.
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Affiliation(s)
| | | | - Arthur Elsenaar
- ArtScience Interfaculty, Royal Academy of Art, Royal Conservatory, The Hague, Netherlands
| | - Marc Mehu
- Department of Psychology, Webster Vienna Private University, Vienna, Austria
| | - Sebastian Korb
- Department of Psychology, University of Essex, Colchester, UK.
- Department of Cognition, Emotion, and Methods in Psychology, University of Vienna, Vienna, Austria.
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Vejbrink Kildal V, Rodriguez-Lorenzo A, Pruidze P, Reissig L, Weninger WJ, Tzou CHJ, Jonsson L, Meng S. Ultrasound-Guided Injections for Treatment of Facial Paralysis Sequelae: A Randomized Study on Body Donors. Plast Reconstr Surg 2024; 153:617e-625e. [PMID: 37285208 DOI: 10.1097/prs.0000000000010802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
BACKGROUND Botulinum toxin injection is the accepted standard treatment for synkinesis and gustatory hyperlacrimation in patients with facial paralysis. However, poor injection accuracy can result in inconsistent treatment outcomes, variable treatment durations, and complications. Ultrasound guidance should increase injection accuracy in the facial region; however, this has not been proven. METHODS Twenty-six hemifaces of nonembalmed cadavers were studied in a randomized split-face manner. Ink was injected with ultrasound or landmark guidance into the lacrimal gland and three common synkinetic muscles: the orbicularis oculi, depressor anguli oris, and mentalis. Injection accuracy was evaluated using several measures. RESULTS Using ultrasound guidance, most ink (>50%) was found inside the correct target in 88% of cases, compared with 50% using landmark guidance ( P < 0.001). This was most pronounced in the lacrimal gland (62% versus 8%), depressor anguli oris (100% versus 46%), and mentalis (100% versus 54%) ( P < 0.05). All ink was found inside the correct target (no ink outside) in 65% using ultrasound guidance versus 29% without ( P < 0.001). Injection accuracy (any ink in target) was 100% when using ultrasound guidance versus 83% without ( P < 0.01). Twenty-three percent of the landmark-guided depressor anguli oris injections stained the facial artery ( P = 0.22). CONCLUSIONS Ultrasound guidance significantly increased injection accuracy and reduced the amount of ink lost in the surrounding tissue compared with landmark guidance. Clinical trials are needed to explore the effects of ultrasound guidance on treatment outcome, duration, and complications in patients with facial paralysis.
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Affiliation(s)
| | | | | | | | | | - Chieh-Han John Tzou
- Uppsala, Sweden; and Vienna, Austria
- From the Department of Surgical Sciences, Plastic and Maxillofacial Surgery
- Otorhinolaryngology-Head and Neck Surgery, Uppsala University
- Division of Anatomy, Medical University of Vienna
- BioImaging Austria (CMI)
- Plastic and Reconstructive Surgery, Department of Surgery, Hospital of Divine Savior (Krankenhaus Goettlicher Heiland)
- Faculty of Medicine, Sigmund Freud University
- Facial Palsy Center, Tzou Medical
- Radiology, Hanusch Hospital
| | - Lars Jonsson
- Otorhinolaryngology-Head and Neck Surgery, Uppsala University
| | - Stefan Meng
- Division of Anatomy, Medical University of Vienna
- Radiology, Hanusch Hospital
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Bonińska K. Ophthalmic Complications after Needle-Based Medical Aesthetic Procedures: A Narrative Review. J Clin Med 2022; 12:jcm12010313. [PMID: 36615113 PMCID: PMC9821034 DOI: 10.3390/jcm12010313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/11/2022] [Accepted: 12/29/2022] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND This study aimed to discuss common complications of medical aesthetic treatments, which require ophthalmological intervention. METHODS This literature study evaluated published journal articles (clinical trials or scientific reviews) that were extracted from electronic databases (MEDLINE and PubMed) and reference lists of related articles. Only articles available in English were considered for this review. RESULTS Unskillful interference in the eye area can cause severe, irreversible complications, including blindness. This is a constant risk because of anatomical deviations, and retrograde blood flow. CONCLUSIONS Accurate knowledge of anatomy, especially the vascular anatomy of high-risk sites, and the understanding of the depth and plane of injection, and various injection techniques minimize the risk of these complications.
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Affiliation(s)
- Karolina Bonińska
- Miejskie Centrum Medyczne Jonscher, ul. Milionowa 14, 93-113 Łódź, Poland
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Borba A, Matayoshi S, Rodrigues M. Avoiding Complications on the Upper Face Treatment With Botulinum Toxin: A Practical Guide. Aesthetic Plast Surg 2022; 46:385-394. [PMID: 34341857 PMCID: PMC8328485 DOI: 10.1007/s00266-021-02483-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 07/08/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Currently, botulinum toxin (BoNT) injections are the most commonly performed non-invasive procedure for rejuvenation on the upper face. The therapeutic use of botulinum toxin has generally been safe and well tolerated. Adverse effects are considered mild, transient, and self-limited. However, as with all other injectable procedures, this one is also susceptible to adverse events and complications. When the safety zones are respected, the chance of any of these complications is practically null. Thus, this review aims to describe the main complications of treatment with BoNT on the upper face and to present a practical guide based on current evidence on how to avoid them. METHODS The literature research considered published journal articles (clinical trials or scientific reviews). Studies were identified by searching electronic databases (MEDLINE and PubMed) and reference lists of respective articles. RESULTS The main complications secondary to BoNT injections on the upper face are: ptosis of eyelid or eyebrow, eyebrow asymmetry, diplopia, Lakeophthalmos, Palpebral ectropion, and prominence of the palpebral bags. To avoid such complications, it is necessary to have knowledge of the anatomy of this region and adequate and individualized planning based on the existing patterns of the frontalis muscle, glabella, and crow's feet. This review presents the specificities of each of these regions and practical suggestions to obtain satisfactory results, avoiding complications. CONCLUSION Particularly on the upper face treatment with BoNT offers predictable results, has few adverse effects, and is associated with high patient satisfaction. However, it is suggested that the commented parameters and safety areas be incorporated into daily practice so that the possibilities of complications are minimized as much as possible. LEVEL OF EVIDENCE III This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- André Borba
- Department of Ophthalmology, Division of Oculoplastic, University of São Paulo Medical School, 255 Eneas Aguiar Street Office 4079, São Paulo, Zipcode 05403000 Brazil
| | - Suzana Matayoshi
- Department of Ophthalmology, Division of Oculoplastic, University of São Paulo Medical School, 255 Eneas Aguiar Street Office 4079, São Paulo, Zipcode 05403000 Brazil
| | - Matheus Rodrigues
- Department of Medicine, Division of Dermatology, Mato Grosso State University, Tancredo Neves Avenue 1095, Cáceres, Mato Grosso 78200000 Brazil
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A Review of Complications Due to the Use of Botulinum Toxin A for Cosmetic Indications. Aesthetic Plast Surg 2021; 45:1210-1220. [PMID: 33051718 DOI: 10.1007/s00266-020-01983-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 09/05/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Botulinum toxin A (botulinum toxin A) was found to provide a wide variety of therapeutic and aesthetic benefits as one of the most potent toxins in the world. Injectable remedies, including soft tissue fillers and botulinum toxin, have become very common in wrinkling and face rejuvenation management. While these methods of treatment are relatively safe, serious side effects can occur. In this review, the complications of BoNTA are highlighted. METHODS A literature research considered published journal articles (clinical trials or scientific reviews). Electronic databases (PubMed, Scopus, Science Direct) were searched using key terms, and for identification of additional relevant studies, reference lists have also been examined. Only articles published in English were included in this review with a time restriction from 2000 to 2020. RESULTS There are various injection-related adverse effects associated (AE) with botulinum toxins such as erythema, oedema, pain, ptosis of eyelid or brow and ecchymosis. The overall majority of adverse events identified are mild and temporary. CONCLUSION As the use of toxins becomes increasingly more common, adverse events can be expected to increase as well. The practitioners need to be aware of such AEs, and the patients should be informed of these before undertaking such procedures. LEVEL OF EVIDENCE III This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Cohn JE, Greco TM. Advanced Techniques for the Use of Neurotoxins in Non-Surgical Facial Rejuvenation. Aesthetic Plast Surg 2020; 44:1788-1799. [PMID: 32239250 DOI: 10.1007/s00266-020-01691-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Accepted: 03/16/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Neurotoxins initially were used to treat hyperfunctional rhytids of the face, but now have been expanded to improve facial shaping, correct facial asymmetry and even improve skin texture and tone. METHODS The clinical approach to non-surgical facial rejuvenation is approached into four anatomical regions: the upper face, midface, lower face and neck. RESULTS The key muscles of the upper face include frontalis, orbicularis oculi, corrugator supercilii, procerus, depressor supercilii and temporalis. The muscles in the midface to be discussed include the levator labii superioris, levator labii superioris alaeque nasi, depressor anguli oris, depressor septi nasi and nasalis. Treatment of the lower face focuses on the orbicularis oris, mentalis, depressor anguli oris and masseter muscles. Finally, treatment of the neck region will be reviewed with emphasis on platysmal bands and necklace lines as well as the Nefertiti lift. CONCLUSIONS Non-surgical facial rejuvenation using neurotoxins should be performed safely and effectively in order to avoid and treat complications. LEVEL OF EVIDENCE V This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Jason E Cohn
- Department of Otolaryngology-Head and Neck Surgery, Division of Facial Plastic Reconstructive Surgery, Philadelphia College of Osteopathic Medicine, 4190 City Line Avenue, Philadelphia, PA, 19131, USA.
| | - Timothy M Greco
- Center of Excellence in Facial Cosmetic Surgery, 2 Bala Plaza, PL-15, Bala Cynwyd, PA, 19004, USA
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Eftekhari MH, Aghaei H, Kangari H, Bahrami M, Eftekhari S, Tabatabaee SM, Shahraki K, Bahrami M, Broumand MG. Abobotulinum toxin A for periorbital facial rejuvenation: impact on ocular refractive parameters. Clin Exp Optom 2020; 104:115-118. [PMID: 32783216 DOI: 10.1111/cxo.13117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
CLINICAL RELEVANCE Botulinum toxin is commonly used for cosmetic facial rejuvenation and can result in pain at the injected site, bruising and ecchymosis, erythema and oedema, headache, diplopia, blurred vision, focal facial weakness. This study evaluates the impact of botulinum toxin on refractive error and binocular vision. BACKGROUND Botulinum toxin (trade name: Dysport) is a neurotoxic protein which is made from a Gram-positive anaerobic bacterium known as Clostridium botulinum. In this study, we aimed to evaluate the impact of Dysport injection on refractive error, near point of accommodation and convergence, and palpebral fissure height. METHODS Twenty-eight subjects were treated for facial wrinkles, using Dysport. A 500-unit vial of Dysport was diluted with 2.5-ml preserved normal saline, and injected doses were 30-units for crow's feet, six units for lower eyelid wrinkles, 25 to 50-units for glabellar lines (five points), and 20 to 40 for forehead creases on four points. The refractive error, near point of accommodation and convergence and palpebral fissure heights were assessed before and two weeks after injection. RESULTS The participants comprised 23 women and five men at a mean age of 53.51 ± 14.1-years. The means of the equivalent sphere before and after injection were -0.07 ± 1.34 and -0.08 ± 1.35 (p = 0.36). The means of near point of accommodation monocularly before and after injection were 29.75 ± 6.16-cm and 26.75 ± 6.00, respectively. The means of near point of convergence before and after injection were 16.03 ± 5.27-cm and 15.55 ± 6.14, respectively (p = 0.30). The means of palpebral fissure height before and after injection were 10.33 ± 1.69-mm and 10.20 ± 1.46-mm, respectively. The changes in equivalent spherical refractive error, binocular near point of accommodation and convergence were not statistically significant. CONCLUSION Dysport injection for the correction of upper face animation lines, if performed at the appropriate sites and the appropriate concentration, has no significant impact on refractive error, near point of accommodation and convergence, and palpebral fissure height.
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Affiliation(s)
- Mohammad H Eftekhari
- Clinical Research Development Unit of Torfe Medical Center, Shahid Beheshti University of Medical Sciences , Tehran, Iran
| | - Hossein Aghaei
- Eye Research Center, The Five Senses Institute, Rasoul Akram Hospital, Iran University of Medical Sciences , Tehran, Iran
| | - Haleh Kangari
- School of Rehabilitation, Shahid Beheshti University of Medical Sciences , Tehran, Iran
| | - Milad Bahrami
- School of Rehabilitation (Student Research Office), Shahid Beheshti University of Medical Sciences , Tehran, Iran
| | - Shervin Eftekhari
- Tehran Medical Sciences Branch, Islamic Azad University , Tehran, Iran
| | - Seyed M Tabatabaee
- School of Rehabilitation, Shahid Beheshti University of Medical Sciences , Tehran, Iran
| | - Kourosh Shahraki
- Labbafinejad Hospital, Shahid Beheshti University of Medical Sciences , Tehran, Iran
| | - Mobin Bahrami
- School of Rehabilitation (Student Research Office), Mashhad University of Medical Sciences , Mashhad, Iran
| | - Mohammad G Broumand
- School of Rehabilitation, Shahid Beheshti University of Medical Sciences , Tehran, Iran
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Discussion: Treatment of Keloid Scars with Botulinum Toxin Type A versus Triamcinolone in an Athymic Nude Mouse Model. Plast Reconstr Surg 2019; 143:768-769. [PMID: 30817648 DOI: 10.1097/prs.0000000000005324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Comparison of the efficacy of onabotulinumtoxinA and abobotulinumtoxinA at the 1: 3 conversion ratio for the treatment of asymmetry after long-term facial paralysis. Plast Reconstr Surg 2015; 135:239-249. [PMID: 25285681 DOI: 10.1097/prs.0000000000000800] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
BACKGROUND Botulinum toxin A injection into the nonparalyzed side is used to treat asymmetry resulting from facial palsy. OnabotulinumtoxinA and abobotulinumtoxinA units are not equivalent. The authors compared the conversion ratio of 1:3 in patients with facial palsy. METHODS Fifty-five patients (age, 16 to 67 years; 43 women) with longstanding facial palsy were randomly treated with either onabotulinumtoxinA (n = 25) or abobotulinumtoxinA (n = 30) injections into the nonparalyzed side. Adverse effects, facial symmetry, subjective satisfaction, and Facial Disability Index were assessed after 1 and 6 months. RESULTS The incidence of adverse effects was higher with abobotulinumtoxinA (93.3 percent versus 64.0 percent; p = 0.007). Clinical scores of the nonparalyzed side decreased after 1 month and increased again at 6 months, with no between-group differences. Scores of the paralyzed side were lower in the onabotulinumtoxinA group before treatment, but similar in both groups thereafter. The paralyzed side scores increased after 1 month, and at 6 months were still higher than the pretreatment scores in both groups. Subjective assessment improved at all time points compared with pretreatment scores and differed between the two groups only at 1 month, when the abobotulinumtoxinA group was a bit too paralyzed. The physical function and social/well-being function subscales of the Facial Disability Index did not differ between the two groups. CONCLUSIONS Both toxins efficiently reduced asymmetry in patients with facial palsy. Adverse effects were higher with abobotulinumtoxinA at an equivalence ratio of 1:3. CLINICAL QUESTION/LEVEL OF EVIDENCE Therapeutic, II.
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Levy LL, Emer JJ. Complications of minimally invasive cosmetic procedures: prevention and management. J Cutan Aesthet Surg 2012; 5:121-32. [PMID: 23060707 PMCID: PMC3461789 DOI: 10.4103/0974-2077.99451] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Over the past decade, facial rejuvenation procedures to circumvent traditional surgery have become increasingly popular. Office-based, minimally invasive procedures can promote a youthful appearance with minimal downtime and low risk of complications. Injectable botulinum toxin (BoNT), soft-tissue fillers, and chemical peels are among the most popular non-invasive rejuvenation procedures, and each has unique applications for improving facial aesthetics. Despite the simplicity and reliability of office-based procedures, complications can occur even with an astute and experienced injector. The goal of any procedure is to perform it properly and safely; thus, early recognition of complications when they do occur is paramount in dictating prevention of long-term sequelae. The most common complications from BoNT and soft-tissue filler injection are bruising, erythema and pain. With chemical peels, it is not uncommon to have erythema, irritation and burning. Fortunately, these side effects are normally transient and have simple remedies. More serious complications include muscle paralysis from BoNT, granuloma formation from soft-tissue filler placement and scarring from chemical peels. Thankfully, these complications are rare and can be avoided with excellent procedure technique, knowledge of facial anatomy, proper patient selection, and appropriate pre- and post-skin care. This article reviews complications of office-based, minimally invasive procedures, with emphasis on prevention and management. Practitioners providing these treatments should be well versed in this subject matter in order to deliver the highest quality care.
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Affiliation(s)
- Lauren L Levy
- Department of Dermatology, Mount Sinai School of Medicine, New York, NY, USA
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Feily A, Fallahi H, Zandian D, Kalantar H. A succinct review of botulinum toxin in dermatology; update of cosmetic and noncosmetic use. J Cosmet Dermatol 2011; 10:58-67. [PMID: 21332916 DOI: 10.1111/j.1473-2165.2010.00545.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Botulinum toxin A has a wide variety of clinical applications in medical and dermatologic sciences. Nowadays, researchers introduce some other indications for botulinum toxin in cosmetic and especially noncosmetic aspects of dermatology such as medical rhinoplasty, hypertrophic scar, chemical brow lift, supraciliary wrinkles, pompholix, eccrine angiomatosis, Hailey-Hailey, dermatochalasis, lichen simplex, nosthalgia parestetica, and granulosis rubra nasi. In this general overview of the use of botulinum toxin in dermatology, an extensive literature search was carried out to updates of all dermatology-oriented experiments and clinical trials on the mentioned aspect of botulinum toxin.
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Affiliation(s)
- Amir Feily
- Department of Dermatology, Jondishapur University of Medical Sciences, Ahvaz, Iran
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Salles AG, Toledo PN, Ferreira MC. Botulinum toxin injection in long-standing facial paralysis patients: improvement of facial symmetry observed up to 6 months. Aesthetic Plast Surg 2009; 33:582-90. [PMID: 19330369 DOI: 10.1007/s00266-009-9337-9] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2008] [Accepted: 03/05/2009] [Indexed: 11/26/2022]
Abstract
BACKGROUND Despite modern reanimation surgical techniques, facial paralysis presents with functional and aesthetic deficits. We evaluated facial symmetry after treating with botulinum toxin the healthy side of the face of 25 patients with long-standing facial paralysis who had previously been treated by surgical methods, with 6 months follow-up. METHODS Evaluation consisted of a clinical score, the two subscales of the Facial Disability Index, and surface electromyography. The mean botulinum toxin dose was 38 +/- 5 U (range = 15-69 U). RESULTS The clinical score showed significant reduction of asymmetry of 48.4% at 1 month and 16.8% after 6 months. The initial result was a consequence of reduced motion on the treated side combined with better motion on the paralyzed side. At 6 months, the treated side returned to basal scores. The residual effect seen in symmetry was due to an increase (18%) of motion in the paralyzed side. There was a significant decrease in the action potential of muscles on the nonparalyzed side 1 month post injection but completely reverted after 6 months. The Physical Function Index increased, but not significantly. The Social/Well-Being Function Index showed a significant increase at 6 months compared to pretreatment. CONCLUSION The proposed treatment improved facial symmetry for up to 6 months. Even after the end of the clinical effect of the drug, the paralyzed side's clinical score was 18% higher than pretreatment, with an increased quality of life.
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Abstract
PURPOSE OF REVIEW Current cosmetic surgical practice for facial rejuvenation has undergone a significant change due to the introduction of technologies to improve the age-associated changes of the face. The most widely adopted methods of minimally invasive facial rejuvenation include the use of neuromuscular blocking agents and injectable fillers. The topic of minimally invasive procedures might include a variety of subjects including nutritional and hormonal modulation, light-based and laser-based therapies, minimal incision surgical procedures, as well as the use of botulinum toxin and fillers. The focus of this study will be on the minimally invasive facial rejuvenation efforts achieved by injection techniques. RECENT FINDINGS Botulinum A neurotoxin has been shown to be effective in the reduction of hyperfunctional lines in the upper and lower face. Anatomic areas that have been found to benefit include the glabella, the forehead, the periorbital area, lips, and the platysma muscle. The more recently introduced hyaluronic acid and other injectable fillers are receiving increasing usage. These temporary fillers have been found to improve creases and wrinkles, augment deep nasolabial folds, augment thin lips, and improve hollowing in the periorbital and other depressions and deformities. SUMMARY There has been a significant paradigm shift in the field of rejuvenation surgery. Injectable minimally invasive methods have been offered to remedy age-related and other acquired deformities of the head and neck region. These methods have provided temporary correction of undesirable characteristic that were traditionally approached with more invasive surgically oriented modalities.
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Topaz M. Injectable volumetric fillers and botulinum toxin in facial rejuvenation. EUROPEAN JOURNAL OF PLASTIC SURGERY 2008. [DOI: 10.1007/s00238-008-0296-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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Abstract
Until relatively recently, restoration of appearance by replacement of lost facial volume and muscular relaxation has been an illusory goal. With advances in the commercial availability of newer filling agents and a better understanding of the clinical esthetic effects of botulinum toxin A, remarkably sophisticated and refined results can now be achieved by using these noninvasive techniques. The combined use of BTX-A and filling agents, such as collagen and hyaluronic acid, can restore facial appearance by the dual mechanisms of reflation and relaxation. In addition, their combined use appears to increase the longevity of tissue dwell time of the filling agent. Current practices now strive to correct wrinkles by restoring volume and also relaxing the pull of muscles that create negative facial expressions such as glabellar folds, mouth frown, crow's feet, horizontal forehead lines, and perioral and cervical rhytides. As with any of the new technological innovations currently available, understanding of the differing properties of the agents used and education in optimal technique is essential to clinical and esthetic success.
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Affiliation(s)
- Kiersten R Coleman
- Department of Dermatology, Louisiana State University Health Sciences Center, New Orleans, USA
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