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BACKGROUND: The relationship between the number and type of postoperative complications and mortality in the setting for surgery for acute type A aortic dissection (ATAAD) remains underexplored despite its critical role in the failure-to-rescue (FTR) metric. METHODS: This retrospective study used data from the Society of Thoracic Surgeons Adult Cardiac Surgical Database on ATAAD surgeries performed between January 2018 and December 2022. Patients were categorized based on their number of major complications. The primary outcome was FTR. We used multilevel regression and classification and regression tree models. RESULTS: We included 19,243 patients (33% females), with a median age of 61 years. Regarding complications, 47.7% of patients had 0, 20.2% had 1, 12.7% had 2, and 19.4% experienced 3 or more. The most frequently reported complications were prolonged mechanical ventilation (30.3%), unplanned reoperation (19.5%), and renal failure (17.2%). Cardiac arrest occurred in 7.1% of cases. FTR increased from 13% in patients with 1 complication to >30% in those with 4 or more complications. Cardiac arrest (adjusted odds ratio [aOR], 10.9) and renal failure (aOR, 5.3) had the highest odds for mortality, followed by limb ischemia (aOR, 2.7), stroke (aOR, 2.6), and gastrointestinal complications (aOR, 2.4). Hospitals in the top performance quartile consistently showed lower FTR rates across all levels of complication. CONCLUSIONS: The study validates a dose-response association between postoperative complications and mortality in patients undergoing surgery for ATAAD. Top-performing hospitals consistently show lower FTR rates independent of the number of complications. Future research should focus on the timing of complications and interventions to reduce the burden of complications.

RESUMO

The present study aimed to assess the effectiveness and functional adverse effects of a single and multiple injections of botulinum toxin A (BoNT-A) for masseter hypertrophy (MH). Twenty-six women complaining about lower third facial enlargement due to MH, received 75 U of BoNT-A (abobotulinum toxin) in each masseter muscles. After 3 months, patients were randomly assigned to receive a second treatment session of Saline Solution: (G1; n = 11) or BoNT-A: (G2; n = 12). Muscle thickness (ultrasound), electrical activity (electromyography; EMG), masticatory performance, and subjective perception of MH were evaluated. Follow-up was performed at 1, 3 and 6 months. Muscle thickness, EMG activity, and masticatory performance were analyzed using ANOVA two-way and Sidak test as post-hoc. Masticatory performance was analyzed by the Friedman's test and Mann-Whitney test. Regarding inter-groups comparisons, there was a significant decrease in the left masseter muscle thickness in the G2 group at the 6 month follow-up (p < 0.02). For EMG, significant differences were evident at the 6 month assessment, with higher masseter activity for G1 (p < 0.05). For masticatory performance, no significant differences were observed throughout the study (p > 0.05) and a higher improvement in subjective perception of MH was observed in the 1 month follow-up for G2 (p < 0.05). In conclusion, BoNT-A is effective for MH, however multiple injections cause functional adverse effects in masseter muscle.

Assuntos

Toxinas Botulínicas Tipo A , Eletromiografia , Hipertrofia , Músculo Masseter , Humanos , Músculo Masseter/efeitos dos fármacos , Músculo Masseter/patologia , Músculo Masseter/anormalidades , Feminino , Hipertrofia/tratamento farmacológico , Toxinas Botulínicas Tipo A/administração & dosagem , Toxinas Botulínicas Tipo A/uso terapêutico , Toxinas Botulínicas Tipo A/efeitos adversos , Adulto , Mastigação/efeitos dos fármacos , Pessoa de Meia-Idade , Resultado do Tratamento , Fármacos Neuromusculares/uso terapêutico , Fármacos Neuromusculares/administração & dosagem , Injeções Intramusculares

RESUMO

This study aimed to compare the smile's attractiveness in patients submitted to the treatment of gummy smiles with botulinum toxin or maxillary impaction surgery. The retrospective sample comprised 26 patients divided into two groups: Group 1 (BTX): 13 patients (12 females and 1 male) with a mean age of 28.06 years (s.d. = 6.09) and mean gingival exposure during smile of 5.18 mm (s.d. = 1.51) treated with botulinum toxin; Group 2 (SURGICAL): 13 patients (9 females and 4 males) with a mean age of 30.59 years (s.d. = 5.72) and mean gingival exposure during smile of 5.21 mm (s.d. = 1.55) treated with orthognathic maxillary impaction surgery. The group of evaluators comprised 317 participants, divided into 143 orthodontists (85 females and 58 males) with a mean age of 41.40 (s.d. = 9.30); 62 dentists (47 female and 15 male) with a mean age of 35.44 (s.d. = 10.44), and 112 lay people (74 female and 38 male) with a mean age of 46, 91 (s.d. = 10.11) in a questionnaire on Google Forms. Without knowing the therapy used, the evaluators assigned scores to the photographs of the posed smile taken before (T1) and after (T2) treatment. Intergroup comparison of smile attractiveness was performed using the t-independent, one-way ANOVA, and Tukey tests. There was a significant improvement in smile attractiveness with treatment in both groups; however, the improvement was significantly better in the surgical group than in the BTX group. Orthodontists rated smile attractiveness significantly higher than dentists and laypersons for the final phase of the BTX and surgical groups. There was a significant improvement in the smile attractiveness with botulinum toxin application and orthodontic-surgical treatment. However, orthognathic surgery promoted a greater improvement in smile attractiveness than the application of botulinum toxin.

Assuntos

Maxila , Sorriso , Humanos , Feminino , Masculino , Estudos Retrospectivos , Adulto , Maxila/cirurgia , Gengiva/anatomia & histologia , Estética Dentária , Toxinas Botulínicas Tipo A/uso terapêutico , Procedimentos Cirúrgicos Ortognáticos/métodos , Adulto Jovem , Fármacos Neuromusculares/uso terapêutico , Toxinas Botulínicas/uso terapêutico , Ortodontistas , Odontólogos/psicologia

RESUMO

BACKGROUND: This study aimed to elucidate the effects of botulinum toxin A (BoNT-A) treatment for patients diagnosed with masseter hypertrophy on the temporalis muscle, with a particular focus on assessing alterations in muscle thickness, electromyographic (EMG) activity, and the development of muscle pain. METHODS: The present randomized triple-blinded clinical trial enrolled 26 female participants aged between 25 and 50 years complaining about masseter hypertrophy. Participants received 75U of BoNT-A (abobotulinumtoxinA) in both masseter muscles and after three months were randomized to receive a second treatment session of saline solution (S-BoNT-A) or BoNT-A (M-BoNT-A). Longitudinal assessments included temporalis muscle thickness through ultrasound, EMG activity, subjective pain, and masseter prominence severity after one, three, and six months of the first injection session. Muscle thickness, EMG, and subjective pain were analysed using two-way ANOVA with repeated measures and post hoc Sidak test, and for masseter prominence severity, Friedman and Mann-Whitney tests were used. RESULTS: Regarding inter-group comparisons, a higher muscle thickness (p < 0.02) and a higher EMG activity (p < 0.01) were found in the M-BoNT-A group at the 6-month follow-up. For subjective pain assessments, inter-group comparisons showed a higher prevalence of painful regions in M-BoNT-A group at the 6-month follow-up (p < 0.02). No significant differences were found in masseter prominence severity at the 6 months assessment between groups. CONCLUSION: BoNT-A treatment for masseter hypertrophy lead to structural and functional changes in the temporalis muscle, presenting higher changes after multiple injections of this treatment. LEVEL OF EVIDENCE I: 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 .

RESUMO

OBJECTIVE: Investigate the effects of botulinum toxin type A (BoNT-A) combined with physical therapy on functional capacity in children with spastic cerebral palsy (CP). METHODS: Twenty-four children with spastic CP were treated with either BoNT-A and physical therapy or physical therapy alone. RESULTS: Significant differences (p < 0.05) were found after 30 days of treatment for the Berg Scale, Timed Up and Go (TUG) test, Ashworth Scale and Pediatric Evaluation of Disability Inventory (PEDI) and after three months for the Berg Scale, TUG test and PEDI. No significant differences (p > 0.05) were found in the control group. DISCUSSION: BoNT-A combined with physical therapy leads to significant improvements in spasticity and functionality in children with CP within a period of three months from the onset of treatment.

Assuntos

Toxinas Botulínicas Tipo A , Paralisia Cerebral , Espasticidade Muscular , Fármacos Neuromusculares , Modalidades de Fisioterapia , Humanos , Paralisia Cerebral/tratamento farmacológico , Paralisia Cerebral/fisiopatologia , Paralisia Cerebral/reabilitação , Paralisia Cerebral/terapia , Toxinas Botulínicas Tipo A/uso terapêutico , Toxinas Botulínicas Tipo A/administração & dosagem , Masculino , Feminino , Criança , Fármacos Neuromusculares/uso terapêutico , Fármacos Neuromusculares/administração & dosagem , Pré-Escolar , Resultado do Tratamento , Terapia Combinada , Espasticidade Muscular/tratamento farmacológico , Avaliação da Deficiência

RESUMO

BACKGROUND: The signs of aging seem to be more visible on the neck compared to other locations, especially if a patient has already gone through facial rejuvenation procedures. Treatment of the aging neck imposes a challenge to the clinician, since one single approach is usually not enough to achieve the desired result, requiring multiple injections and sessions, which apart from being painful for the patients, is time-consuming for the clinician. AIM: To describe the use of calcium hydroxyapatite, incobotulinum toxin type A and Cohesive poly-densified matrix hyaluronic acid diluted in the same syringe and injected in the same session for neck rejuvenation. PATIENTS AND METHODS: Fifteen women, older than 18 years, with cervical skin flaccidity grade 1-4 in a previously validated 5-point rating scale (Dermatologic Surg, 2016; 42, S94), who sought neck rejuvenation were injected in this pilot study with a single session with a combined hybrid mixture of calcium hydroxyapatite, incobotulinum toxin type A, and Cohesive poly-densified matrix hyaluronic acid and followed up for 90-180 days. RESULTS: At the 4-month post injection evaluation, 93.3% of the patients presented at least 1-grade improvement in the 5-point scale as evaluated by the investigator. No serious adverse events were reported, being most mild and transient in nature. CONCLUSION: CaHA, incoBonTA, and CPM-HA have complementary mechanisms of action and may be injected from the same syringe in the same session, boosting the final outcome, with high patient satisfaction, and ease of process for both patients and clinicians.

Assuntos

Toxinas Botulínicas Tipo A , Técnicas Cosméticas , Durapatita , Ácido Hialurônico , Pescoço , Rejuvenescimento , Envelhecimento da Pele , Humanos , Feminino , Ácido Hialurônico/administração & dosagem , Ácido Hialurônico/efeitos adversos , Toxinas Botulínicas Tipo A/administração & dosagem , Toxinas Botulínicas Tipo A/efeitos adversos , Envelhecimento da Pele/efeitos dos fármacos , Durapatita/administração & dosagem , Pessoa de Meia-Idade , Projetos Piloto , Adulto , Preenchedores Dérmicos/administração & dosagem , Preenchedores Dérmicos/efeitos adversos , Resultado do Tratamento , Satisfação do Paciente , Idoso

RESUMO

Introducción. Las hernias gigantes con pérdida de domicilio son aquellas cuyo saco herniario alcanza el punto medio del muslo en bipedestación y su contenido excede el volumen de la cavidad abdominal. Estas hernias son un reto quirúrgico dada la difícil reducción de su contenido y del cierre primario de la fascia. Tienen mayor riesgo de complicaciones asociadas al síndrome compartimental abdominal, así como mayor tasa de recurrencia y morbilidad en los pacientes. Caso clínico. Paciente masculino de 81 años, reconsultante por hernia inguinoescrotal derecha gigante, de dos años de evolución, sintomática, con índice de Tanaka de 24 %. Se decidió aplicar el protocolo de neumoperitoneo secuencial (hasta 11.000 ml en total en cavidad) además de toxina botulínica en pared abdominal (dos sesiones). Resultados. Se logró la corrección exitosa de la hernia inguinoescrotal gigante, sin recaídas de su patología abdomino-inguinal. El paciente manifestó satisfacción con el tratamiento un año después del procedimiento. Conclusiones. El protocolo de neumoperitoneo secuencial es una alternativa en casos de hernias complejas, con alto riesgo de complicaciones, que requieren técnicas reconstructivas adicionales. La aplicación previa de toxina botulínica es un adyuvante considerable para aumentar la probabilidad de resultados favorables. Sin embargo, debe incentivarse la investigación en esta área para evaluar su efectividad.

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Introduction. Giant hernias with loss of domain are those whose hernial sac reaches the midpoint of the thigh in standing position and whose content exceeds the volume of the abdominal cavity. These hernias are a surgical challenge given the difficult reduction of their contents and the primary fascial closure, with a higher risk of complications associated with abdominal compartment syndrome, as well as a higher rate of recurrence and morbidity in patients. Clinical case. A 81-year-old male patient with comorbidity, reconsulting due to a symptomatic giant right inguinoscrotal hernia of two years of evolution, with a Tanaka index of 24%, eligible for a sequential pneumoperitoneum protocol (up to a total of 11,000 cc in cavity) plus application of botulinum toxin (two sessions) in the abdominal wall. Results. Successful correction of the patient's giant inguinoscrotal hernia was achieved using this protocol, without recurrence of his abdomino-inguinal pathology and satisfaction with the procedure after one year. Conclusion. The sequential pneumoperitoneum protocol continues to be an important alternative in cases with a high risk of complications that require additional reconstructive techniques, while the previous application of botulinum toxin is a considerable adjuvant to further increase the rate of favorable results. However, research in the area should be encouraged to reaffirm its effectiveness.

Assuntos

Humanos , Pneumoperitônio Artificial , Toxinas Botulínicas Tipo A , Hérnia Inguinal , Próteses e Implantes , Hérnia Abdominal , Herniorrafia

RESUMO

Introdução: Cicatrizes visíveis podem acarretar agravos, sejam estéticos, psicológicos, funcionais ou sociais, principalmente de grande extensão e volume, como os queloides. A descoberta de novos tratamentos de queloides não é fácil, visto a presença de alguns entraves metodológicos e éticos, sendo uma área pouco explorada. A toxina botulínica tem sido apresentada como alternativa terapêutica em estudos nacionais e internacionais, sendo necessária uma compilação e destaque dos principais estudos que possam subsidiar a prática clínica. Assim, o objetivo foi apresentar uma revisão de escopo sobre a utilização terapêutica da toxina botulínica para o tratamento de cicatrizes queloides. Método: A revisão foi realizada através da estratégia PICO e utilizando o Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews. Foi realizada nas bases de dados PubMed/ Medline, Biblioteca Virtual em Saúde e SciELO, considerando estudos do período de 2016 até setembro de 2021. Resultados: Foram encontrados 34 artigos no geral relacionados ao tema. Após filtragem e seleção, a revisão foi construída com apoio de 5 artigos. Os estudos variaram entre coorte, relatos de caso, ensaio clínico randomizado e caso-controle. Foi possível observar como principais resultados a ação a curto prazo da toxina botulínica na redução de queloides, maior efetividade na redução dos sintomas e possibilidades de utilização clínica para diferentes populações e manifestações clínicas. Conclusão: O mecanismo de ação da toxina botulínica pode facilitar o tratamento de queloides e redução de sintomas, sendo necessários estudos mais robustos para definição de protocolos cínicos de gestão de cicatrizes.

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Introduction: Visible scars can cause problems, whether aesthetic, psychological, functional, or social, mainly of great extension and volume, such as keloids. The discovery of new treatments for keloids is not easy, given the presence of some methodological and ethical obstacles, and it is an area that is little explored. Botulinum toxin has been presented as a therapeutic alternative in national and international studies, requiring a compilation and highlighting of the main studies that can support clinical practice. Thus, the objective was to present a scoping review on the therapeutic use of botulinum toxin for the treatment of keloid scars. Method: The review was carried out using the PICO strategy and using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews. It was carried out in the PubMed/ Medline, Virtual Health Library, and SciELO databases, considering studies from 2016 to September 2021. Results: Overall, 34 articles related to the topic were found. After filtering and selection, the review was constructed with the support of 5 articles. The studies varied between cohorts, case reports, randomized clinical trials, and casecontrol. It was possible to observe as main results of the short-term action of botulinum toxin in reducing keloids, greater effectiveness in reducing symptoms, and possibilities of clinical use for different populations and clinical manifestations. Conclusion: The mechanism of action of botulinum toxin can facilitate the treatment of keloids and reduce symptoms, requiring more robust studies to define effective scar management protocols.

RESUMO

Introdução: O mercado de procedimento estéticos cresce exponencialmente no Brasil. Tal crescimento tem despertado o interesse de várias categorias profissionais. A decisão de praticar no setor deve considerar as oportunidades de mercado da localidade na qual se pretende atuar. Entretanto, a área carece de análises comparativas documentando prováveis diferenças regionais no país. O objetivo do estudo é descrever as diferenças de mercado em procedimentos estéticos entre os estados e regiões brasileiras. Um índice de potencial consumo de cosmiatria (IPCC) é calculado para tal análise comparativa. Método: Estudo transversal envolvendo prestadores de procedimentos estéticos não cirúrgicos no Brasil. Buscas no Google®-Google Maps® foram conduzidas usando termoschave e entrevistas telefônicas realizadas para obter informações sobre categorias profissionais, tipo de provedores e serviços oferecidos. Valores preditivos positivos foram obtidos para todas as estratégias de busca e usados para estimar o número total de provedores. O tamanho da população e a renda per capita foram considerados para o cálculo dos IPCCs para os estados brasileiros. Resultados: São Paulo, Minas Gerais e Rio de Janeiro apresentaram os maiores IPCCs, sendo 524, 210 e 180, respectivamente. Roraima teve um IPCC de 14, o mais baixo do país. A Região Sudeste apresentou, em média, o maior IPCC (242) entre todas as regiões brasileiras. Conclusão: Considerando o tamanho da população e a renda, a Região Sudeste apresenta as maiores oportunidades de mercado em procedimentos estéticos não cirúrgicos no Brasil. Nossos achados podem ser de interesse para profissionais de saúde e investidores que atuam ou pretendem atuar no setor.

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Introduction: The aesthetic procedure market is growing exponentially in Brazil. This growth has aroused the interest of several professional categories. The decision to practice in the sector must consider the market opportunities in the location in which you intend to operate. However, the area lacks comparative analyses documenting probable regional differences in the country. The objective of the study is to describe market differences in aesthetic procedures between Brazilian states and regions. An index of potential cosmetic consumption (IPCC) is calculated for such a comparative analysis. Method: Cross-sectional study involving providers of nonsurgical aesthetic procedures in Brazil. Searches on Google Maps® were conducted using key terms, and telephone interviews were conducted to obtain information on professional categories, types of providers, and services offered. Positive predictive values were obtained for all search strategies and used to estimate the total number of providers. Population size and per capita income were considered to calculate the IPCCs for Brazilian states. Results: São Paulo, Minas Gerais, and Rio de Janeiro presented the highest IPCCs, being 524, 210, and 180, respectively. Roraima had an IPCC of 14, the lowest in the country. The Southeast Region presented, on average, the highest IPCC (242) among all Brazilian regions. Conclusion: Considering population size and income, the Southeast Region presents the greatest market opportunities for nonsurgical aesthetic procedures in Brazil. Our findings may be of interest to healthcare professionals and investors who work or intend to work in the sector.

RESUMO

Mice are commonly used to study mandibular dynamics due to their similarity in chewing cycle patterns with humans. Adult mice treated unilaterally with botulinum toxin type A (BoNTA) in the masseter exhibit atrophy of this muscle characterized by an increase in the gene expression of atrophy-related molecular markers, and a reduction in both muscle fiber diameter and muscle mass at 14d. However, the impact of this muscle imbalance on the non-treated masticatory muscles remains unexplored. Here, we hypothesize that the unilateral masseter hypofunction leads to molecular and 3D morphometric signs of atrophy of the masseter and its agonist masticatory muscles in adult mice. Twenty-three 8-week-old male BALB/c mice received a single injection of BoNTA in the right masseter, whereas the left masseter received the same volume of saline solution (control side). Animals were euthanized at 2d, 7d, and 14d, and the masticatory muscles were analyzed for mRNA expression. Five heads were harvested at 14d, fixed, stained with a contrast-enhanced agent, and scanned using X-ray microtomography. The three-dimensional morphometric parameters (the volume and thickness) from muscles in situ were obtained. Atrogin-1/MAFbx, MuRF-1, and Myogenin mRNA gene expression were significantly increased at 2 and 7d for both the masseter and temporalis from the BoNTA side. For medial pterygoid, increased mRNA gene expression was found at 7d for Atrogin-1/MAFbx and at 2d-7d for Myogenin. Both the volume and thickness of the masseter, temporalis, and medial pterygoid muscles from the BoNTA side were significantly reduced at 14d. In contrast, the lateral pterygoid from the BoNTA side showed a significant increase in volume at 14d. Therefore, the unilateral hypofunction of the masseter leads to molecular and morphological signs of atrophy in both the BoNTA-injected muscle and its agonistic non-injected masticatory muscles. The generalized effect on the mouse masticatory apparatus when one of its components is intervened suggests the need for more clinical studies to determine the safety of BoNTA usage in clinical dentistry.

Assuntos

Toxinas Botulínicas Tipo A , Músculos da Mastigação , Adulto , Humanos , Camundongos , Masculino , Animais , Miogenina , Músculo Masseter/patologia , Músculo Masseter/fisiologia , Atrofia Muscular/patologia , RNA Mensageiro

RESUMO

PURPOSE: To evaluate the safety, efficacy, and short and long-term postoperative results of using BTA. METHODS: We conducted a systematic review following the recommendations of the PRISMA method. We systematically reviewed the MEDLINE/PubMed and SCOPUS electronic databases for studies published between January 2010 and September 2021. This systematic review was registered in PROSPERO, with registration number CRD42021252445. RESULTS: After applying the selection criteria, 11 relevant articles were selected. The total sample size was 1058 patients. Most studies aimed to assess the rate of fascial closure, followed by the rate of recurrence and reporting of postoperative complications, as well as the need for the components separation technique (CST). None of the studies reported serious complications from using BTA. Regarding fascial closure, all articles had rates above 75%, except for one. Surgical site events ranged between 19% and 29.4%. No recurrence in the group that used BTA was recorded in five studies. The other articles reported recurrence rates ranging from 6.4 to 11.4% in the groups that received BTA. The studies had varying follow-up times ranging from 1 to 49 months, with a mean of 18.6 months (± 11.2). CONCLUSION: This review described most of the key points about the preoperative use of BTA in hernia repair. It can be concluded that the use of BTA is a safe and effective practice that promotes good short and long-term results. However, the limitations of the current literature prevent more accurate conclusions on the subject.

RESUMO

The global demand for energy and industrial growth has generated an exponential use of fossil fuels in recent years. It is well known that carbon dioxide (CO2) is mainly produced, but not only from fuels, which has a negative impact on the environment, such as the increasing emission of greenhouse gases. Thus, thinking about reducing this problem, this study analyzes microwave irradiation as an alternative to conventional heating to optimize zeolite A synthesis conditions for CO2 capture. Synthesis reaction parameters such as different temperatures (60-150 °C) and different time durations (1-6 h) were evaluated. The CO2 adsorption capacity was evaluated by CO2 adsorption-desorption isotherms at 25 °C and atmospheric pressure. The results showed that the synthesis of zeolite A by microwave irradiation was successfully obtained from natural kaolinite (via metakaolinization), reducing both temperature and time. Adsorption isotherms show that the most promising adsorbent for CO2 capture is a zeolite synthesized at 100 °C for 4 h, which reached an adsorption capacity of 2.2 mmol/g.

Assuntos

Dióxido de Carbono , Zeolitas , Adsorção , Micro-Ondas , Pressão Atmosférica

RESUMO

OBJECTIVE: To determine the relationship between volume of cases and failure-to-rescue (FTR) rate after surgery for acute type A aortic dissection (ATAAD) across the United States. METHODS: The Society of Thoracic Surgeons adult cardiac surgery database was used to review outcomes of surgery after ATAAD between June 2017 and December 2021. Mixed-effect models and restricted cubic splines were used to determine the risk-adjusted relationships between ATAAD average volume and FTR rate. FTR calculation was based on deaths associated with the following complications: venous thromboembolism/deep venous thrombosis, stroke, renal failure, mechanical ventilation >48 hours, sepsis, gastrointestinal complications, cardiopulmonary resuscitation, and unplanned reoperation. RESULTS: In total, 18,192 patients underwent surgery for ATAAD in 832 centers. The included hospitals' median volume was 2.2 cases/year (interquartile range [IQR], 0.9-5.8). Quartiles' distribution was 615 centers in the first (1.3 cases/year, IQR, 0.4-2.9); 123 centers in the second (8 cases/year, IQR, 6.7-10.2); 66 centers in the third (15.6 cases/year, IQR, 14.2-18); and 28 centers in the fourth quartile (29.3 cases/year, IQR, 28.8-46.0). Fourth-quartile hospitals performed more extensive procedures. Overall complication, mortality, and FTR rates were 52.6%, 14.2%, and 21.7%, respectively. Risk-adjusted analysis demonstrated increased odds of FTR when the average volume was fewer than 10 cases per year. CONCLUSIONS: Although high-volume centers performed more complex procedures than low-volume centers, their operative mortality was lower, perhaps reflecting their ability to rescue patients and mitigate complications. An average of fewer than 10 cases per year at an institution is associated with increased odds of failure to rescue patients after ATAAD repair.

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Este estudo teve como objetivo realizar um levantamento bibliométrico das pesquisas realizadas em odontologia na área de harmonização orofacial, com ênfase na bichectomia, ácido hialurônico e toxina botulínica. Utilizou-se como base os anais dos trabalhos apresentados nas Reuniões Anuais da Sociedade Brasileira de Pesquisa Odontológica (SBPqO) entre os anos de 2017 a 2021e todos os resumos que possuíam algumas das palavras-chaves pesquisadas ("bichectomia", "ácido hialurônico" e "toxina botulínica") foram avaliados. Após a seleção informações foram coletadas dos resumos e os dados foram analisados através de estatística descritiva.Foram incluídos neste estudo 65 resumos, estando a maioria relacionado com pesquisas utilizando a toxina botulínica. O ano de 2021 foi o que apresentou uma maior produção de estudos sobre o tema e a região Sudeste do Brasil foi a que mais produziu acerca da harmonização orofacial nos últimos cinco anos. A maioria das pesquisas foram desenvolvidas por instituições privadas e não receberam financiamento. Dentre as áreas da odontologia a desordens temporomandibular, dor orofacial e a periodontia aparecem com maior envolvimento com as pesquisas utilizando, principalmente a toxina botulínica e o ácido hialurônico. Conclui-se que as pesquisas envolvendo temas relacionados a área de harmonização ainda representam um número baixo, entretanto esse número apresentou crescimento nos últimos 5 anos. Se faz necessário mais incentivo em pesquisas nessa área para as regiões norte e centro oeste,bem como um maior em financiamento.

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This study aimed to carry out a bibliometric survey of research carried out in dentistry in the area of orofacial harmonization, with emphasis on bichectomy, hyaluronic acid and botulinum toxin. The annals of the works presented at the Annual Meetings of the Brazilian Society for Dental Research (SBPqO) between the years 2017 to 2021 and all abstracts that had some of the searched keywords ("bichectomy", "hyaluronic acid" and "botulinum toxin") were evaluated. After the selection, information was collected from the abstracts and the data were analyzed using descriptive statistics. A total of 65 abstracts were included in this study, most of which related to research using botulinum toxin. The year 2021 was the one that presented the greatest production of studies on the subject and the Southeast region of Brazil was the one that produced the most about orofacial harmonization in the last five years. Most research was developed by private institutions and did not receive funding. Among the areas of dentistry, temporomandibular disorders, orofacial pain and periodontics appear with greater involvement with research using, mainly, botulinum toxin and hyaluronic acid. It is concluded that research involving topics related to the harmonization area still represents a low number, however this number has grown in the last 5 years. More incentives are needed for research in this area for the North and Midwest regions, as well as greater funding.

Assuntos

Bibliometria , Ácido Hialurônico

RESUMO

Introducción: Las toxinas botulínicas son medicamentos bioterapéuticos con grandes aplicaciones en el campo de la neurología, como la cefalea y los movimientos anormales. Debido a la importancia médica y al incremento de las indicaciones terapéuticas de la toxina botulínica, este artículo pretende hacer claridad acerca de la terminología básica con respecto a la naturaleza de este medicamento, a las diferencias estructurales con medicamentos convencionales y aspectos importantes en relación con su potencia biológica e inmunogenicidad, para así comprender las potenciales diferencias entre las toxinas disponibles y conceptuar en torno a la no intercambiabilidad o sustitución de una toxina por otra. Materiales y métodos: Revisión no sistemática, según lo recomendado en la Escala para la Verificación de los Artículos Revisiones Narrativas (Sanra). Conclusiones: Los medicamentos biológicos no son intercambiables entre sí, aunque demuestren bioequivalencia. No se pueden evaluar como medicamentos genéricos intercambiables porque son biológicos; no existen estudios comparativos cabeza a cabeza; son diferentes, debido al proceso individual de manufactura.

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Introduction: Botulinum toxins are biotherapeutic drugs with great applications in the field of neurology such as headache and abnormal movements. Due to the medical importance and the increase in therapeutic indications of botulinum toxin, this article aims to clarify the basic terminology regarding the nature of this drug, the structural differences with conventional drugs and important aspects in relation to its biological potency and immunogenicity in order to understand the potential differences between the available toxins and conceptualize regarding the non-interchangeability or substitution of one toxin for another. Materials and methods: Non-systematic review as recommended in the Scale for the Verification of Narrative Review Articles (SANRA). Conclusions: Biological drugs are not interchangeable with each other, even if they demonstrate bioequi-valence. They cannot be evaluated as interchangeable generic drugs because they are biologics. There are no head-to-head comparative studies. They are different due to the individual manufacturing process.

Assuntos

Toxinas Botulínicas Tipo A , Medicamentos Biossimilares , Intercambialidade de Medicamentos

RESUMO

Introduction: Anatomy is one of the foundations in medicine, and choosing a practical and dynamic teaching method is essential for better retention of your learning. The objective is to use facial anatomy applied to live models as an innovative teaching strategy and to evaluate the experience of the learning experience of students assigned to the method. Method: The work analyzes the experience with body painting of 51 students from Instituto Boggio assigned this method (or instructed to use this method) during their classes. Different planes and anatomical structures were represented on live models' faces to simulate and teach the main injectable cosmetic procedures; syringes, needles, cannulas, and ultrasound gel stained with food inks were used. Overlapping latex layers were used for the anatomical study of the temple, middle third of the face, and nose, allowing the reproduction of fillers and biostimulators in these regions. The main muscle groups were represented for the discussion of high-precision botulinum toxin. After the entire demonstration, the students answered a questionnaire via "Google Forms" evaluating the methodology used. Results: According to the answers to the questionnaires, most students considered body painting an innovative methodology that contributed to learning anatomical content and satisfactorily illustrating the demonstrated cosmetic procedures. Conclusion: Practical learning through live models makes this new teaching method something innovative and unique that, in an enjoyable way, enables the study of anatomy and appropriately trains clinical skills.

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Introdução: A anatomia é um dos principais alicerces no exercício da medicina e a escolha de um método de ensino prático e dinâmico é fundamental para melhor retenção do seu aprendizado. O objetivo é utilizar a anatomia facial aplicada em modelos vivos como estratégia inovadora de ensino e avaliar a experiência do processo de aprendizagem dos alunos submetidos ao método. Método: O trabalho analisa a experiência vivida com a pintura corporal por 51 alunos do Instituto Boggio submetidos ao método durante as aulas ministradas. Diferentes planos e estruturas anatômicas foram representados nas faces de modelos vivos. Para simulação e ensino dos principais procedimentos cosmiátricos injetáveis, seringas, agulhas, cânulas e gel de ultrassom corado com tintas alimentícias foram utilizados. Camadas de látex sobrepostas foram utilizadas para estudo anatômico da têmpora, terço médio da face e nariz, possibilitando a reprodução do uso de preenchedores e bioestimuladores nestas regiões. Os principais grupamentos musculares foram representados para discussão sobre toxina botulínica de alta precisão. Após toda a demonstração, os alunos responderam a um questionário via "Formulários Google" avaliando a metodologia utilizada. Resultados: De acordo com as respostas dos questionários, a maioria dos alunos considerou a pintura corporal como uma metodologia inovadora e que contribui no aprendizado do conteúdo anatômico, bem como ilustra satisfatoriamente os procedimentos cosmiátricos demonstrados. Conclusão: A aprendizagem prática por meio dos modelos vivos faz deste novo método de ensino algo inovador e único que, de maneira lúdica, possibilita o estudo da anatomia e o treinamento de habilidades clínicas adequadamente.

RESUMO

Introduction: Botulinum toxin type A (BTX-A) is the number one aesthetic procedure worldwide, and the difficulty in standardizing the aesthetic treatment of the face results in a broad range of treatment possibilities. The objective this study aimed to describe the author's experience treating facial wrinkles of women with BTX-A and suggest a standardized initial treatment method. Methods: A documentary retrospective review of all medical records from the main author's clinic from 2010 to 2017 in São Paulo, Brazil, was performed, searching for female patients who required the BTX-A aesthetic treatment to reduce facial wrinkles. The main author obtained, reviewed, and classified photographic data ("Carruthers Grading Scale for Forehead Lines"). Results: The BTX-A used in all patients was Botox® (Allergan Inc., Irvine, CA, USA). A total of 156 female treatments with BTX-A were identified. The average total units of BTX-A used for the referred treatment was 32.43U. The average period between treatments in the same patient was 8.73 months. All patients showed an improved "Grading Scale for Forehead Lines" post-treatment Conclusion: The review suggests a safe and effective technique is possible with even lower complication rates than found in the literature using fewer units, resulting in lower product costs. One should always try to minimize risks in aesthetic treatments.

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Introdução: A aplicação de toxina botulínica do tipo A (BTX-A) é o procedimento estético mais realizado no mundo. Não há consenso sobre a forma ideal de realizar essa aplicação, que defina os locais de aplicação e a quantidade ideal necessária para o referido tratamento. O objetivo do estudo tem como objetivos descrever a experiência do autor no tratamento das rugas faciais em mulheres com BTX-A e sugerir uma padronização para o tratamento inicial. Método: Foi realizado um estudo documental retrospectivo de todos os prontuários médicos da clínica do autor principal, em São Paulo - SP, Brasil, desde 2010 até 2017, em busca dos dados de pacientes do sexo feminino que foram submetidas ao tratamento das rugas faciais com BTX-A, por razões estéticas. Os arquivos fotográficos foram obtidos, revisados e classificados pelo autor principal de acordo com a "Carruthers Grading Scale for Forehead Lines". Resultados: A BTX-A utilizada em todas as pacientes foi: Botox® (Allergan Inc., Irvine, CA, USA). Um total de 156 tratamentos com BTX-A foi encontrado. A média de unidade de toxina utilizada para o tratamento foi de 32,43U. O período médio de retorno para nova aplicação, na mesma paciente, foi de 8,73 meses. Todas as pacientes apresentaram melhora da classificação obtida através da "Grading Scale for Forehead Lines" após o tratamento. Conclusão: A revisão sugere que uma técnica efetiva e segura para o tratamento é possível, com menos unidades e menor taxa de complicações, quando comparada à literatura. Devemos sempre minimizar os riscos em tratamentos estéticos.

RESUMO

OBJECTIVE: The primary objective of this paper is to assess whether the use of 200 units of abobotulinum in the pectoralis major and subscapularis muscles modifies the pain complaint assessed using the visual analog scale in subjects with shoulder pain after the onset of spastic hemiplegia due to cerebrovascular disease when compared to the application of a placebo to the same muscles. DESIGN: A prospective, double-blind, randomized, and placebo-controlled clinical trial study in two different rehabilitation centers. SETTING: Two distinct outpatient neurological rehabilitation services. PARTICIPANTS: Patients older than 18 years who were included presented upper limb spasticity resulting from ischemic or hemorrhagic stroke and a diagnosis of Painful Hemiplegic Shoulder Syndrome (PHSS) that was independent of motor dominance. INTERVENTIONS: Patients were divided into two groups, one of them underwent the application of botulinum toxin (TXB-A) in the pectoralis major and subscapularis muscles, at a total dose of 400 U. MAIN OUTCOME MEASURE: Patients were assessed for a change in pain using the Visual Analog Scale (VAS) for at least 13 mm. RESULTS: An improvement in pain and spasticity levels in both groups, more intense in the toxin group, but without statistical significance. The comparison between the groups showed a reduction in pain by VAS (p = 0.52). CONCLUSIONS: The use of botulinum toxin in the subscapularis and pectoralis major muscles resulted in a reduction in shoulder pain in spastic hemiplegic patients without statistical significance.

Assuntos

Toxinas Botulínicas Tipo A , Fármacos Neuromusculares , Acidente Vascular Cerebral , Humanos , Ombro , Dor de Ombro/diagnóstico , Dor de Ombro/tratamento farmacológico , Toxinas Botulínicas Tipo A/uso terapêutico , Fármacos Neuromusculares/uso terapêutico , Hemiplegia/tratamento farmacológico , Hemiplegia/reabilitação , Estudos Prospectivos , Resultado do Tratamento , Extremidade Superior , Espasticidade Muscular/tratamento farmacológico , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/tratamento farmacológico , Método Duplo-Cego

RESUMO

Purpose: The current study aims to evaluate bite force, perception of orofacial pain, and treatment satisfaction of patients with bruxism using two protocols of botulinum toxin A (BTX-A) injections. Material and Methods: Two groups of patients seeking bruxism treatment and presenting bilateral orofacial pain of muscle origin were randomly created according to BTX-A injection sites: masseter muscle only, bilaterally (3 points in each muscle, 10 U per point), and masseter and temporal muscles (3 points in each masseter muscle and 2 points in each temporal muscle, 10 U per point). The patients were evaluated preoperatively and longitudinally at 15, 90, 120, and 180 days by the use of visual analog scales for pain and treatment satisfaction and a gnathodynamometer for bite force recording. Results: The final sample included 10 participants in each group. Both groups presented mitigation of pain at 15, 90, 120, and 180 days in comparison with baseline; however, reduction in the posterior bite force was noted only at 15, 90, and 120 days. Quite high treatment satisfaction was reported from both groups at 15, 90, 120, and 180 days. No differences were observed between the groups in all evaluations and study periods. Conclusion: In general, considering pain relief, reduction in bite force, and treatment satisfaction, both protocols of BTX-A seem to be somewhat equally effective in the short-term management (up to 120 days) of bruxism.

RESUMO

A síndrome de arlequim é uma rara desordem autonômica que se caracteriza por anidrose e falta de rubor unilateral da face, podendo acometer as regiões cervical e torácica. De forma paradoxal, há rubor e sudorese compensatórios no lado contralateral à alteração. É idiopática na maioria dos casos, mas pode ser congênita, secundária a lesões estruturais e à iatrogenia pós-cirúrgica. O tratamento é direcionado ao fator causal. Descreve-se caso de paciente com diagnóstico de síndrome de arlequim idiopática, sendo realizada aplicação de toxina botulínica na hemiface acometida pelos sintomas compensatórios com boa resposta terapêutica

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Harlequin syndrome is a rare autonomic disorder characterized by anhidrosis and lack of unilateral flushing of the face, which may affect the cervical and thoracic regions. Paradoxically, there is compensatory flushing and sweating on the contralateral side to the alteration. It is idiopathic in most cases, but it can be congenital or secondary to structural or post-surgical iatrogenic lesions. Treatment is directed at the causative factor. We describe the case of a patient with a diagnosis of idiopathic Harlequin Syndrome with botulinum toxin application in the hemiface affected by compensatory symptoms with good therapeutic response.