Botulinum Toxin for Masseter Reduction in Asian Patients

Ahn, Jeffrey; Horn, Corinne; Blitzer, Andrew

doi:10.1001/archfaci.6.3.188

Cited by 66 publications

(40 citation statements)

References 12 publications

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“…An oval facial shape with a smooth flow from the forehead through temples, zygoma and cheeks, jaw angle and jawline, and the chin has been reported to be attractive in all cultures [4, 10, 11]. Ahn et al [12] reported that a delicate ovoid facial shape is favoured in Asia. Similarly, Park et al reported that “oval and almond-shape faces” are preferred by Asian women [13].…”

Section: Discussionmentioning

confidence: 99%

“…The mandibular angle is an example of this belief and plays a very important role in female facial shape in Asia: “a woman who has a wide and square face is thought to have had a unhappy life” [21]. Accordingly, surgical and non-surgical reduction in the lower face width is a common request and a very popular practice in Asia [12, 15, 22, 23]. …”

Section: Discussionmentioning

confidence: 99%

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The Ideals of Facial Beauty Among Chinese Aesthetic Practitioners: Results from a Large National Survey

Samizadeh

2018

Aesth Plast Surg

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As the demand for cosmetic procedures increases, the importance of patient-centred care in this field becomes more prominent. The aesthetic practitioners’ ideals of beauty, in addition to their knowledge and perception of patients’ ideals of beauty and expectations, are important during doctor–patient communication. These are important in strengthening practices of patient-centred communication and treatment. This study was conducted to investigate ideals of facial beauty among Chinese aesthetic practitioners. A questionnaire with simple sketches of facial features was given to aesthetic practitioners in Chinese cosmetology hospitals and clinics to assess aesthetic practitioners’ ideals of beauty and their preferences for facial shapes, facial profile, nose and lip shape, jaw angle, and chin shape. A total of 596 surveys were completed. This survey revealed that Chinese aesthetic practitioners preferred a heart/inverted triangular facial shape with a reduced lower face height, a straight and small nose, as well as lips that are full medially and taper off laterally with well-defined borders and Cupid’s bow. An obtuse jaw angle for women and a square well-defined jaw angle for men, and a round and pointy chin for both women and men were the most preferred. A majority (66.7%) of the respondents said they would have plastic surgery. However, if given the choice 82.9% indicated they would opt for non-surgical procedures. Finally, a clear majority (90.5%) believed that being beautiful would improve their daily life. The results were then compared to a similar previous study in which the same ideals of beauty were investigated among Chinese laypersons. This information will help the aesthetic professionals to understand their patient’s requests and expectations better and therefore aid in offering and providing treatments that are in line.Level of Evidence VThis 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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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The Ideals of Facial Beauty Among Chinese Aesthetic Practitioners: Results from a Large National Survey

Samizadeh

2018

Aesth Plast Surg

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“…hypertrophy is commonplace. [2][3][4][5] These kinds of toxin treatments have high safety profiles and are very effective, but the risks of a variety of side effects or complications remain. [6][7][8][9][10][11][12][13][14] A physician who performs masseter toxin injections should be able to recognize different complications, along with their incidence rate, onset and time to recovery.…”

mentioning

confidence: 99%

Literature review of the adverse events associated with botulinum toxin injection for the masseter muscle hypertrophy

Yeh¹,

Peng²,

Peng³

2018

J of Cosmetic Dermatology

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Botulinum toxin masseter injections are commonly performed procedures with good results and safety profiles. The majority of complications appeared within 2-4 weeks of injection and disappeared within 12 weeks. Despite the temporary nature of these complications, they often decrease patient satisfaction and confidence, so physicians should familiarize themselves with the regional anatomy and injection safety zones.

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“…The wet weight declined by 32% in the active site compared with the contralateral site, and was restored to 92% after six months. Ahn et al (2004) used Botox to treat benign masseter hypertrophy and observed that the masseter shrank the most in the first and second months after injection. The therapeutic effect lasted six months.…”

Section: Muscle Wet Weightmentioning

confidence: 99%

Influence of injection of Chinese botulinum toxin type A on the histomorphology and myosin heavy chain composition of rat gastrocnemius muscles

Hong

Chen

2013

J. Zhejiang Univ. Sci. B

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Background and objective: Botulinum toxin type A (BoNT/A) is a metalloprotease that blocks synaptic transmission via the cleavage of a synaptosomal-associated protein of 25 kDa . It has gained widespread use as a treatment for cerebral palsy and skeletal muscle hypertrophy. In China, Chinese botulinum toxin type A (CBTX-A), a type of BoNT/A, is in widespread clinical use. However, the changes in the morphological and biochemical properties of treated muscles and in remote muscles from the CBTX-A injection site are relatively unknown. Therefore, we investigated the changes in histomorphology and myosin heavy chain (MyHC) isoform composition and distribution in rat gastrocnemius muscles after intramuscular injection of CBTX-A. Methods: The weakness of the injected muscles was assessed periodically to identify their functional deficiency. Muscle slices were stained with hematoxylin-eosin (HE) and adenosine triphosphatase (ATPase). MyHC isoform composition was analyzed by sodium dodecyl sulfatepolyacrylamide gel electrophoresis (SDS-PAGE) to uncover changes in morphological and biochemical properties.Results: Our findings demonstrate that following injection of CBTX-A 5 U into rat gastrocnemius muscles, shifts in MyHC isoform composition emerged on the third day after injection and peaked in the fourth week. The composition remained distinctly different from that of the control group after the twelfth week. More specifically, there was a decrease in the proportion of the type IIb isoform and an increase in the proportions of type IIx, type IIa, and type I isoforms. Conclusions: Data revealed that CBTX-A led to a shift in MyHC composition towards slower isoforms and that the MyHC composition remained far from normal six months after a single injection. However, no noticeable remote muscle weakness was induced.

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Botulinum Toxin for Masseter Reduction in Asian Patients

Cited by 66 publications

References 12 publications

The Ideals of Facial Beauty Among Chinese Aesthetic Practitioners: Results from a Large National Survey

The Ideals of Facial Beauty Among Chinese Aesthetic Practitioners: Results from a Large National Survey

Literature review of the adverse events associated with botulinum toxin injection for the masseter muscle hypertrophy

Influence of injection of Chinese botulinum toxin type A on the histomorphology and myosin heavy chain composition of rat gastrocnemius muscles

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