A cross sectional validation study of sonographic findings of the first metatarsophalangeal Joint in gout and asymptomatic hyperuricemia

Objective@#Musculoskeletal ultrasound has gained recognition in early identification of crystal deposits in the joints and soft tissues. This study aims to validate the sonographic features of 1st metatarsophalangeal joints (MTPJs) in gout and asymptomatic hyperuricemia (AH).@*Methods@#Patients with gout (n=20) and AH (n=16) underwent a gray-scale ultrasound assessment of both 1st MTPJs on 3 positions (dorsal, medial, plantar) in longitudinal view. The static images were read by 2 blinded trained sonologists for the presence of double contour sign (DCS), erosions, and tophi.

Effect of autologous fat transplantation on facial contouring / 中华医学美学美容杂志

Objective:To explore the application experience of autologous fat transplantation in improving the facial contour of young cosmetic patients.Methods:From October 2017 to October 2020, the plastic surgery department of Beijing Tsinghua Changgung Hospital admitted 10 young cosmetic patients with poor facial contours, including 1 male and 9 females, aged 18-35 years, with an average of 28 years. Autologous subcutaneous fat was harvested by liposuction and static purification and then injected into the areas with poor facial contour with an amount of 10%-30% over.Results:The facial contour of 10 young cosmetic patients was well improved, and there were no postoperative complications such as facial asymmetry, local uneven skin, skin infection and necrosis or fat embolism. 8 cases were filled once and 2 cases were filled twice. The patients were followed up for 6-24 months and the postoperative effect was good. The excellent and good rate evaluated by patients, plastic surgeon and the third party doctor was more than 80%.Conclusions:The use of autologous fat to improve the facial contour of young cosmetic patients is easy to operate with less trauma and good effect, which is worthy of promotion.

Digital measurement of anatomical morphology of a zygomatic arch / 中华医学美学美容杂志

Objective:To analyze the anatomical morphology of the zygomatic arch for reduction malarplasty.Methods:Computed tomography (CT) data were obtained from the electronic records of 45 patients in the Tianjin Stomatological Hospital from January 2018 to February 2020. Among them, there were 30 patients with normal protrusion of zygoma (group A) and 15 patients with prominent protrusion of zygoma (group B). The data were imported into modeling and analysis software (Mimics). Left and right three-dimensional (3D) zygoma models were created through standard procedures. In the 3D models, a vertical cut of the zygomatic arch was done, and anatomical morphological characteristics of the zygomatic arch were obtained through bone data measurement and morphological observation. Mean values with 95% confidence intervals ( CI) were calculated for the positional data. Independent sample T-test was conducted on the positional data and anatomical morphology data of the zygomatic arch in the two groups. P< 0.05 was considered as statistically significant. Results:In group B, the anterior edge of the stabilization area was located in front of the articular tubercle point (15.12 mm, 17.16 mm). The posterior edge of the stabilization area was located in front of the articular tubercle point (7.11 mm, 8.24 mm). The posterior edge of the enlarged area was located in front of the articular tubercle point (3.17 mm, 3.94 mm). There were significant differences between group A and group B in the posterior edge of the stabilization area ( t= 2.41, P= 0.018), the posterior edge of the enlarged area ( t=2.58, P= 0.012), and the width of the unilateral face ( P<0.01). Conclusions:There exists a stabilization area of bone morphology and enlargement area in zygomatic arch. The anatomical morphology of the zygomatic arch is different in width of the unilateral face and location of the enlarged area between populations with normal protrusion and prominent protrusion of the zygoma.

Spectrum of histopathological changes and its quantification using a scoring system in patients with gastroesophageal reflux disease

Aim: The aim of this study was to evaluate the role of histopathological and histomorphometric features in oesophageal biopsy of patients presenting with symptoms of Gastroesophageal Reflux Disease (GERD). Material and Methods: Present study included 42 patients and 12 controls. Complete clinical evaluation followed by endoscopic examination of the patients was done and multipleoesophageal biopsies were taken. Biopsies were processed routinely and stained with Hematoxylin and Eosin and examined for any changes related to GERD. Morphometric assessment was done by using Leitz optical micrometer. The histological scoring was done based on the parameters: basal cell hyperplasia, stromal papillae elongation, cells with irregular nuclear contour (CINC), eosinophilic infiltrate, gastric and intestinal metaplasia. A numerical score was assigned to each parameter and sum of these scores represented the total score. Statistics: The statistical analysis was done using graph pad prism, Medcalc software and Windows MS office. P value and mean standard deviation (SD) was calculated. Results: The endoscopic findings of all the controls and 83.33% of patients were normal. Only 16.67% of patients had reflux associated changes of varying grades on endoscopy. Oesophageal biopsy of all patients had changes related to GERD on histology. Immunohistochemistry confirmed that cells with irregular nuclear contour were T- lymphocytes. The mean (SD) histological scoring of control and patients were 1.75 (0.62) and 5.66 (1.31) respectively. The difference was considered to be statistically significant (P < 0.001). Thus, it was suggested that a cut-off of histological score > 3 can be used to indicate GERD. Conclusion: Patients with gastroesophageal reflux symptoms can have normal endoscopic findings but can be diagnosed on the basis of histological changes in the squamous epithelium. Scoring of the histopathological parameters along with the cut-off value can give a definitive diagnosis of GERD.

Abdominoplastia circunferencial simples e composta: evolução técnica, experiência de 10 anos e análise das complicações / Simple and composite circumferential abdominoplasty: technical evolution, 10-year experience and analysis of complications

Introdução: Pacientes portadores de obesidade mórbida submetidos à cirurgia bariátrica, após perda ponderal maciça, evoluem com grandes dobras de pele em várias regiões do corpo, incluindo abdome. Nos pacientes com excessos dermogordurosos em toda circunferência abdominal e ptose da região glútea, a abdominoplastia circunferencial (simples ou composta) tem demonstrado ser uma solução cirúrgica eficaz, pois a abdominoplastia convencional ou "em âncora" traz resultados insatisfatórios naqueles pacientes com dismorfia severa. O objetivo é analisara evolução técnica da abdominoplastia circunferencial simples e composta e suas complicações. Métodos: Foram avaliados 29 pacientes, sendo 28 do sexo feminino, com média etária de 41,17 anos, submetidos à abdominoplastia circunferencial, entre 2002 e 2012. Este estudo retrospectivo, realizado através de dados colhidos dos prontuários médicos, avaliou: tempo de cirurgia, peso da peça cirúrgica ressecada, tempo de internação hospitalar, antibioticoterapia utilizada, complicações associadas e alterações ocorridas na técnica operatória neste período. Resultados: A abdominoplastia circunferencial composta foi realizada em 23 pacientes (79,3%) e a simples em seis (20,7%). O tempo cirúrgico médio foi de 346 minutos e o peso médio da peça operatória foi 4323 gramas. Três pacientes (10,3%) tiveram complicações maiores (anemia sintomática e deiscência de sutura maior) e cinco (17,2%) complicações menores (pequenas deiscências, pequeno sangramento espontâneo, seroma e cicatriz hipertrófica). Entre 2002 e 2004 ocorreram 75% das complicações. O índice de reoperação foi de 6,9%. Conclusão: Houve importante evolução técnica na realização da abdominoplastia circunferencial, sendo que a incidência de complicações e a taxa de reoperação foram similares àquelas encontradas na literatura.

Introduction: Morbidly obese patients undergoing bariatric surgery after massive weight loss evolve with large skin folds in various body regions, including the abdomen. In patients with dermofat excesses throughout the abdominal circumference and ptosis of the gluteal region, circumferential abdominoplasty (simple or composite) has been an effective surgical solution conventional or "anchor" abdominoplasty brings unsatisfactory results in those patients with severe dysmorphia. The objective is to analyze the technical evolution of simple and composite circumferential abdominoplasty and its complications. Methods: Twenty-nine patients were evaluated, 28 females, with a mean age of 41.17 years, submitted to circumferential abdominoplasty between 2002 and 2012. This retrospective study, conducted through data collected from medical records, evaluated: surgery time, the weight of the resected surgical specimen, length of hospital stays, antibiotic therapy used, associated complications, and changes in the surgical technique in this period. Results: Composite circumferential abdominoplasty was performed in 23 patients (79.3%) and the simple one in six (20.7%). The mean surgical time was 346 minutes, and the surgical specimen's mean weight was 4323 grams. Three patients (10.3%) had significant complications (symptomatic anemia and major suture dehiscence) and five (17.2%) minor complications (minor dehiscence, slight spontaneous bleeding, seroma, and hypertrophic scarring). Between 2002 and 2004, 75% of the complications occurred. The reoperation rate was 6.9%. Conclusion: There was a significant technical evolution in circumferential abdominoplasty performance, and the incidence of complications and the rate of reoperation were similar to those found in the literature.

Segmentation of retinal vessels by fusing contour information and conditional generative adversarial / 生物医学工程学杂志

The existing retinal vessels segmentation algorithms have various problems that the end of main vessels are easy to break, and the central macula and the optic disc boundary are likely to be mistakenly segmented. To solve the above problems, a novel retinal vessels segmentation algorithm is proposed in this paper. The algorithm merged together vessels contour information and conditional generative adversarial nets. Firstly, non-uniform light removal and principal component analysis were used to process the fundus images. Therefore, it enhanced the contrast between the blood vessels and the background, and obtained the single-scale gray images with rich feature information. Secondly, the dense blocks integrated with the deep separable convolution with offset and squeeze-and-exception (SE) block were applied to the encoder and decoder to alleviate the gradient disappearance or explosion. Simultaneously, the network focused on the feature information of the learning target. Thirdly, the contour loss function was added to improve the identification ability of the blood vessels information and contour information of the network. Finally, experiments were carried out on the DRIVE and STARE datasets respectively. The value of area under the receiver operating characteristic reached 0.982 5 and 0.987 4, respectively, and the accuracy reached 0.967 7 and 0.975 6, respectively. Experimental results show that the algorithm can accurately distinguish contours and blood vessels, and reduce blood vessel rupture. The algorithm has certain application value in the diagnosis of clinical ophthalmic diseases.

Complicação grave do uso irregular de silicone industrial em paciente transexual: relato de caso / Severe complication by irregular use of industrial silicone in a transsexual patient: a case report

O uso do silicone líquido industrial como material para modificação estética no contorno corporal é uma prática realizada de forma clandestina há cerca de 60 anos. Atualmente, a maioria dos relatos provém de países da Ásia e América do Sul e as vítimas são principalmente mulheres e transexuais. Devido ao grande número de casos com complicações, o uso do silicone industrial para fins estéticos nunca foi aprovado. Entretanto, continua a ser aplicado isoladamente ou associado a outros produtos, determinando graves complicações locais e sistêmicas. Relata-se um caso de óbito de paciente transexual após injeção de silicone industrial em coxas e glúteos.

The use of industrial liquid silicone as a material for aesthetic modification of body contour is a practice that has been carried out clandestine for about 60 years. Currently, most reports come from countries in Asia and South America, and the victims are mainly women and transsexuals. Due to the large number of cases with complications, the use of industrial silicone for aesthetic purposes has never been approved. However, it continues to be applied alone or associated with other products, determining severe local and systemic complications. We report a case of death of a transsexual patient after injecting industrial silicone in the thighs and buttocks.

Outras tendências na abdominoplastia: novo desenho e importância da lipomidiabdominoplastia na cirurgia do contorno corporal / Other trends in abdominoplasty: new design and importance of lipomid- abdominoplasty in body contour surgery

Introdução: Durante os últimos anos, os princípios cirúrgicos da abdominoplastia permaneceram inalterados. Portanto, muitos resultados observados apresentam desalinhamento, cicatrizes transversais altas e retas do abdome, levando ao posicionamento final da cicatriz umbilical a ser muito próximo da cicatriz transversal, o que dá a impressão de abdome curto. Propomos que a abdominoplastia modifique a concepção básica de sua marcação, pois acreditamos que é importante posicionar a cicatriz transversal mais baixa na região medial e púbica, e mais alta nas extremidades laterais, permitindo, no nível dos flancos, a rotação dos retalhos lombares no sentido anterior em direção inferomedial. Métodos: Foram analisados de forma retrospectiva 146 pacientes portadores de deformidades abdominais e os submetemos a lipomidiabdominoplastia, marcando com forte concavidade superior e orientando os lados da cicatriz em direção à linha transversa inferior do abdômen, 4cm equidistantes da raiz da coxa. Também associamos a lipoaspiração como um tratamento complementar ao contorno corporal. Resultados: Consideramos que os parâmetros da midiabdominoplastia são aplicáveis na maioria dos casos, obtendo resultados igualmente satisfatórios, tanto nos pacientes com flacidez e lipodistrofia abdominal supraumbilical, quanto nos pacientes com abdome em avental com importante flacidez e diástase dos retos abdominais. Conclusão: É importante determinar a área da deformidade abdominal e sua classificação, para estabelecer as estratégias do tratamento e associação de procedimentos complementares. Uma marcação mais baixa, respeitando as áreas de tratamento, permitirá uma melhor cicatriz estética e um contorno corporal harmônico, além de uma adequada colocação dos elementos: cicatriz umbilical, púbis e extremidades laterais da cicatriz abdominal transversa.

Introduction: During the last few years, the surgical principles of abdominoplasty have remained unchanged. Therefore, many patients undergoing this technique have misalignment and high and straight transverse scars of the abdomen, with the final position of the umbilical scar being very close to the transverse scar, making the abdomen seem short. We propose modifying the basic concept of marking in abdominoplasty, because we believe it is important to position the transverse scar lower in the medial and pubic region and higher at the lateral ends, allowing anterior lumbar flap rotation in an inferomedial direction. Methods: We retrospectively analyzed 146 patients with abdominal defects and subjected them to lipo-mid-abdominoplasty, marking with strong upper concavity and guiding the sides of the scar towards the lower transverse line of the abdomen, 4 cm equidistant from the root of the thigh. We also define liposuction as a complementary treatment to body contouring. Results: We consider that midabdominoplasty parameters are applicable in most cases, obtaining satisfactory results both in patients with flatness and supraumbilical abdominal lipodystrophy and patients with an "apron" abdomen with considerable flaccidity and diastasis of the abdominal rectus. Conclusion: It is important to determine the area of the abdominal defect and its classification to establish treatment strategies and association with complementary procedures. A lower marking with respect to the treatment areas will allow a more aesthetic scar and a harmonic body contour as well as an adequate placement of the umbilical scar, pubis, and lateral ends of the transverse abdominal scar.

Effects of multi-directional oscillatory vibration in the treatment of cellulite and body remodeling / Efeitos da terapia vibro-oscilatória multidirecional no tratamento da celulite e remodelamento corporal

Abstract Introduction: Several technologies have been developed and optimized for the treatment of unaesthetic disorders. Among them is the oscillatory vibration therapy, a novel form of treatment based on the mechanical and physiological fundamentals of the vibration platform. Objective: The present study evaluated the efficacy of the oscillatory vibration therapy in the improvement of body contour remodeling and in the aspect of cellulite in women. Methods: This is a prospective longitudinal comparative study, in which the following evaluation tools are used: anthropometry, perimetry, adipometry, evaluation of skin viscoelasticity with Cutometer®, evaluation of the thickness of the hypodermis with diagnostic ultrasound and analysis of severity of cellulite (CSS). The evaluations occurred at the start and 1 week after the end of ten oscillatory vibration therapy. The results were analyzing using a paired student's t-test with interval confidence of 95% (PValue <0.05). Results: Thirty women took part in the research, with age of 33 ± 9 years, weight of 62 ± 11 kg, height of 1.66 ± 0.06 m, BMI of 22 ± 2 kg/m2. The measurements of perimetry, adipometry, analysis of subcutaneous tissue thickness by means of diagnostic ultrasound and analysis of skin viscoelasticity did not present significant alterations. However, the CSS variable of the right gluteus (7.3 ± 1.8 to 5.8 ± 1.6 ≤ 0.0001), left gluteus (7.2 ± 1.9 to 5.8 ± 1.6= 0.0001), right thigh (6.9 ± 1.9 to 5.6 ± 1.4 = 0.0004), left thigh (6.9 ± 1.9 to 5.6 ± 1.3 = 0.0004) and Celluqol® (59 ± 16 to 49 ± 16 = 0.022) presented significant difference. Conclusion: The multi-directional oscillatory vibration therapy is an effective and efficient therapy for the treatment of cellulite; however, for the treatment of body remodeling, it must be further evaluated and studied. (AU)

Introdução: Várias tecnologias vêm sendo desenvolvidas e otimizadas para o tratamento das afecções inestéticas. Dentre elas está a terapia vibro-oscilatória, uma nova forma de tratamento baseada na fundamentação mecânica e fisiológica da plataforma vibratória Objetivo: O presente estudo avaliou a eficácia da terapia vibro-oscilatória para melhora do remodelamento corporal e aspecto de celulite em mulheres. Métodos: Trata-se de um estudo clínico longitudinal prospectivo e comparativo, no qual se utilizaram as seguintes ferramentas de avaliação: antropometria, perímetria, adipometria, avaliação da viscoelasticidade da pele com Cutometer®, avaliação da espessura da hipoderme com ultrassom diagnóstico e análise da escala de severidade da celulite (CSS). As avaliações ocorreram no início e após 1 semana de término das dez sessões da terapia vibro-oscilatória. As análises estatísticas foram realizadas com o software Bioestat 5.0, utilizando o teste de normalidade de Lilliefor (P-valor > 0,05), teste paramétrico e teste T-Student da amostra pareada. Resultados: Trinta mulheres participaram da pesquisa, com média de idade de 33 ± 9 anos, peso médio de 62 ± 11 kg, altura média de 1,66 ± 0,06 metros, IMC médio de 22 ± 2 kg/m2 . As medidas de perímetria, adipometria, análise da espessura do tecido subcutâneo por meio de ultrassom diagnóstico e análise da viscoelasticidade da pele não apresentaram alterações significativas. Entretanto as variáveis de CSS glúteo direito (7,3 ± 1,8 para 5,8 ± 1,6 ≤ 0,0001), glúteo esquerdo (7, 2 ± 1,9 para 5,8 ± 1,6 = 0,0001), coxa direita (6,9 ± 1,9 para 5,6 ± 1,4 = 0,0004), coxa esquerda (6.9 ± 1,9 para 5,6 ± 1,3 = 0,0004) e Celluqol® (59 ± 16 para 49 ± 16 = 0,022), apresentaram diferença significativa. Conclusão: A terapia vibro-oscilatória multidirecional é uma terapia efetiva e eficaz para o tratamento da celulite, porém para o tratamento de remodelamento corporal ela deve ser mais bem avaliada e estudada. (AU)

Application of a modified paramedian lower lip-submandibular approach in maxillary (subtotal) total resection / 华西口腔医学杂志

OBJECTIVE@#To investigate the clinical efficacy of a modified paramedian lower lip-submandibular approach for maxillary (subtotal) total resection.@*METHODS@#Eleven patients of maxillary tumors underwent maxillary (subtotal) total resection through the modified paramedian lower lip-submandibular approach. Clinical follow-up visits were conducted to evaluate appearance restoration, facial nerve functional status, parotid gland functional status, and orbital region complication.@*RESULTS@#During the follow-up period of 6-36 months, the appearance of all 11 patients recovered well. All cases presented hidden scars. No facial nerve and parotid duct injury, lower eyelid edema, lower eyelid ectropion, or epiphora in all cases was observed.@*CONCLUSIONS@#Applying modified paramedian lower lip-submandibular approach to maxillary (subtotal) total resection effectively reduces incidence of orbital region complications including lower eyelid edema, lower eyelid ectropion, and epiphora, which often occur to traditional approach. The modified approach produces more subtle scars than other methods and should be applied to treatment of maxillary (subtotal) total resection.

Cuerpos extraños radiopacos con doble contorno en la vía digestiva: ¿son siempre pilas de botón? / Are strange radiopaque bodies with double contours in the digestive tract always button cell batteries?

Resumen La ingesta accidental de cuerpos extraños constituye una emergencia en los servicios de atención pediátrica y el grupo más frecuentemente afectado se encuentra en los pacientes entre los 6 meses y los 3 años. Asimismo, la ingesta de pilas de botón es un factor de riesgo importante para el desarrollo de complicaciones tempranas severas como la perforación esofágica y mediastinitis, y a largo plazo, la aparición de estenosis. Por este motivo, su identificación temprana y la extracción constituyen las estrategias más importantes de manejo. Se ha descrito como característico el hallazgo del doble contorno en la radiografía frontal cérvico-toracoabdominal en estos pacientes. Sin embargo, se ha reportado el mismo signo radiológico en cuerpos extraños diferentes. En el presente artículo se presentan dos casos con estas características.

Abstract Accidental ingestion of foreign bodies constitutes an emergency for pediatric care services especially since the group most frequently affected consists of children between 6 months and 3 years of age. Ingestion of button cell batteries has high risks for severe early complications such as esophageal perforations and mediastinitis, as well as the long term risk of stenosis. Early identification and extraction are the most important management strategies. A double contour on a frontal cervical, thoracic, or abdominal x-ray is characteristic, but this same radiological sign has been reported for other foreign bodies. We present two cases with these characteristics.

Application of digital immediate implant restoration and angle screw channel abutment in the aesthetic area:case report and literature review / 口腔疾病防治

Objective @# To investigate the application of digital immediate implant and angle screw channel abutment in the aesthetic area and the related influencing factors by reviewing the data of one case of immediate implant repair of the upper anterior teeth and related literature. @*Methods@#One case of refractory chronic apicitis of the upper anterior teeth involved immediate implantation after extraction. The digital information of the patient was obtained by CBCT and intraoral scanning. According to the information from the patients, a preoperative evaluation was performed; a treatment scheme was formulated; a minimally invasive extraction was performed; implants were placed under a digital guide plate; and temporary restoration was immediately performed. Six months after the operation, the patients underwent individualized mold removal, and angle screw channel fixation was completed. We observed the cosmetic effects and soft and hard tissue and gingival contour maintenance effects after restoration and reexamined the patients 6 months after restoration. In addition, the relevant literature was reviewed. @*Results @#The height of the gingival margin and gingival papilla and gingival contour of this patient were well maintained. The red and white aesthetic effect was good. There was no redness or swelling of the gingiva nor obvious changes in the soft and hard tissues around the implant 6 months after restoration, and the patient was satisfied. The results in the literature review show that a preoperative design based on CBCT and intraoral scanning data combined with digital software and a whole digital guide plate make the procedure more accurate and safer. These factors can not only avoid important anatomical structures and serious surgical complications but can also result in implantation in the best three-dimensional position. In addition, the application of digital impression technology and CAD/CAM increases the efficiency, speed, accuracy, simplicity, and comfort of oral impressions and the construction of temporary and final prostheses more precise and faster, greatly improving clinical efficiency. @*Conclusion@#Digital immediate implant and angle screw channel abutment is a good method to restore the aesthetics and function of missing teeth and to avoid the complications caused by adhesive residue.

Avaliação da segurança no emprego do VASER® em cirurgia de lipoaspiração para melhora de contorno corporal / Evaluation of the safety of VASERTM in liposuction surgery to improve body contour

Introdução: A lipoaspiração tem sido submetida à evolução constante desde a sua consolidação e emprego sistemático. O auxílio de tecnologia ultrassônica de terceira geração, VASER® (Vibration Amplification of Sound Energy at Resonance), se destina a facilitar a execução da lipoaspiração e trazer maior segurança e resultados satisfatórios, especialmente na busca por maior definição e lipoaspiração superficial. Métodos: No período de 2015 a 2017, 76 pacientes foram submetidas à lipoaspiração para melhora de contorno corporal no Centro Hospitalar Santa Mônica em Erechim. Foram avaliados os resultados obtidos, as possíveis complicações e a segurança do emprego do VASER®. Resultados: A utilização rotineira do VASER® gera aperfeiçoamento de resultados em contorno corporal. A emulsificação gerada pelo dispositivo associada à lipoaspiração em diversos níveis permite uma maior definição e evidenciação dos marcos anatômicos. Conclusão: Lipoaspiração associada ao VASER® permite ao cirurgião plástico o refinamento de seus resultados com a preservação da segurança do paciente.

Introduction: Liposuction has been improved continuously since it was first introduced. The third-generation ultrasound technology VASERTM (Vibration Amplification of Sound Energy at Resonance) facilitates liposuction, providing improved safety and satisfactory results, especially in the search for greater definition and superficial liposuction. Methods: From 2015 to 2017, 76 patients underwent liposuction to improve their body contour at the Santa Monica Hospital Center in Erechim, Rio Grande do Sul, Brazil. The results, complications, and the safety of VASERTM were evaluated. Results: The routine use of VASERTM improves body contour. The emulsification generated by the device, along with liposuction, resulted in greater definition and revelation of the anatomical landmarks. Conclusion: Liposuction associated with VASERTM allows plastic surgeons to refine the results better while ensuring patient safety is maintained.

Cicatrizadores personalizados: relato de caso / Customized healing abutments: case report

Quando feita a instalação de um implante imediato pode se optar entre a instalação de uma coroa provisória clínica, um cicatrizador ou pode se optar pelo fechamento do implante para um tratamento em duas etapas cirúrgicas. O uso de cicatrizadores personalizados sela os implantes e leva a uma cicatrização individualizada, que favorece a confecção das coroas subsequentes. O presente trabalho objetiva relatar um caso clínico envolvendo um implante imediato e a instalação de um cicatrizador personalizado, demonstrando os resultados e a importância de conhecimento dessa técnica pelo cirurgião-dentista.

When installing an immediate implant, you can choose between installing a temporary clinical crown, healing abutments, or to close the implant for a two-step surgical treatment. The use of customized healing abutments seals the implants and leads to individualized healing, which favors the creation of subsequent crowns. The present study aims to report a clinical case involving an immediate implant and the installation of customized healing abutments, demonstrating the results and the importance of knowledge of this technique by the dentist.

Avaliação do emprego da técnica universal para mastoplastias marcação única de Pessoa em um serviço de ensino de Cirurgia Plástica / Effectiveness of Pessoa's universal technique for single marking in mastoplasty performed while training plastic surgeons

Introdução: A mamoplastia redutora é ainda um procedimento que desafia o cirurgião plástico. O objetivo é demonstrar os resultados no tratamento de variados graus de hipertrofia e ptose mamária utilizando-se a técnica de Marcação Única, proposta por Pessoa, durante o treinamento de novos cirurgiões plásticos. Métodos: Coorte retrospectivo de 95 pacientes submetidas à mamoplastia redutora pela técnica de Pessoa. Incluídas pacientes com ptose, hipertrofia, gigantomastia e/ou assimetria das mamas. Os procedimentos foram realizados por residentes do primeiro, segundo e terceiro ano. Como fatores de exclusão foram usados: distúrbios psicológicos, obesidade mórbida e/ou pacientes com indicação de implante de prótese sem redução de pele e/ou aréola. Foram avaliados a idade, sexo, volume resultante, grau de satisfação, complicações e dificuldades dos residentes para realização do procedimento cirúrgico. Resultados: Todas as pacientes do sexo feminino, com idade entre 21 e 61 anos. 90,53% das pacientes declararam-se muito satisfeitas, 5,26% satisfeitas, 3,16% pouco satisfeitas e 1,05% insatisfeita. Como complicações, foram observadas necrose de complexo areolopapilar (1,05%), epidermólise (11,58%) e deiscência de sutura (9,47%). As dificuldades encontradas pelos residentes, dependendo da etapa do procedimento cirúrgico, variaram entre 11,1% e 55,6%. Conclusões: Verificou-se alto grau de satisfação tanto da parte das pacientes quanto dos residentes envolvidos. Os resultados encontrados confirmam a efetividade da técnica no treinamento de residentes.

Introduction: Reduction mastoplasty is still a challenging procedure for plastic surgeons. The Objective is to show the results of the treatment of different degrees of breast hypertrophy using Pessoa's single marking technique performed while training plastic surgeons. Methods: A retrospective cohort of 95 patients underwent reduction mastoplasty using Pessoa's technique. The cohort included patients with breast ptosis, hypertrophy, gigantomastia, and/ or breast asymmetry. The procedures were performed by first-, second-, and third-year residents. The exclusion criteria were psychological disorders, morbid obesity, and/or indication for prosthesis implantation without skin and/or areola reduction. The analyzed factors were age, sex, final size, patient's degree of satisfaction, complications, and difficulties experienced by the residents in performing the surgery. Results: All patients were women aged between 21 and 61 years. Of the patients, 90.53% reported being very satisfied; 5.26%, satisfied; 3.16%, poorly satisfied; and 1.05%, dissatisfied. The complications observed were necrosis of the nipple-areola complex (1.05%), epidermolysis (11.58%), and suture dehiscence (9.47%). The rate of difficulty experienced by the residents varied between 11.1% and 55.6%, depending on the step of the surgical procedure. Conclusions: A high degree of satisfaction was reported by both the patients and residents. The results confirm the effectiveness of the technique while training residents.

Effects of pulse contour cardiac output monitoring technology in amelioration of myocardial damage in fluid resuscitation of patients with large area burn in the early stage / 中华烧伤杂志

Objective@#To analyze effects of pulse contour cardiac output (PiCCO) monitoring technology in amelioration of myocardial damage in fluid resuscitation of patients with large area burn in the early stage.@*Methods@#From November 2015 to November 2017, medical data of 52 patients with large area burn hospitalized in our unit, meeting the inclusion criteria, were analyzed retrospectively. Twenty-seven patients (18 males and 9 females) with age of (43±10)years in tradition group hospitalized from November 2015 to November 2016 were monitored by traditional monitoring methods for fluid resuscitation, and 25 patients (18 males and 7 females) with age of (44±10)years in PiCCO group hospitalized from December 2016 to November 2017 were monitored by traditional monitoring methods and PiCCO monitoring equipment for fluid resuscitation. Fluid infusion coefficients and total fluid replacement volume of patients in both groups at the first and second post burn hour (PBH) 24, as well as the levels of N terminal pro B type natriuretic peptide (NT-proBNP), cardiac troponin T (cTnT), and creatine kinase MB (CK-MB) immediately on admission and post burn day (PBD) 1, 2, 3, 4, 5, 6, and 7 were recorded. Data were processed with analysis of variance for repeated measurement, chi-square test, t test and Bonferroni correction, and Mann-Whitney U test and Bonferroni correction.@*Results@#(1) The fluid infusion coefficients of patients in tradition group at the first and second PBH 24 were respectively (1.42±0.10) and (0.94±0.14)mL·kg-1·% total body surface area (TBSA)-1, and those in PiCCO group were respectively (1.76±0.14) and (0.85±0.08) mL·kg-1·%TBSA-1. Fluid infusion coefficient and total fluid replacement volume at the first PBH 24 of patients in PiCCO group were significantly higher than those in tradition group (t=-9.775, -4.769, P<0.01). Fluid infusion coefficient at the second PBH 24 of patients in PiCCO group was significantly lower than that in tradition group (t=2.682, P<0.05). There was no statistically significant difference in total fluid replacement volume at the second PBH 24 in patients between the two groups (t=1.167, P>0.05). (2) Immediately on admission and PBD 1, 2, 3, 4, 5, 6, and 7, the levels of NT-proBNP of patients in tradition group were respectively 518 (320, 763), 236 (98, 250), 139 (62, 231), 172 (104, 185), 296 (225, 341), 727 (642, 921), 1 840 (1 357, 2 081), 1 005 (671, 1 297) pg/mL, and those in PiCCO group were respectively 444 (206, 601), 66 (29, 73), 54(28, 75), 139(101, 175), 199 (106, 279), 576 (333, 837), 833 (466, 1 080), 485 (225, 710) pg/mL. The levels of NT-proBNP of patients in PiCCO group on PBD 1, 2, 6, and 7 were significantly lower than those in tradition group (Z=-5.004, -3.967, -5.285, -4.626, P<0.01). The levels of NT-proBNP immediately on admission and PBD 3, 4, and 5 in patients between the two groups were close (Z=-0.834, -0.806, -2.665, -2.153, P>0.05). (3) Immediately on admission and PBD 1, 2, 3, 4, 5, 6, and 7, the levels of cTnT of patients in tradition group were respectively (42±15), (21±12), (17±7), (11±4), (12±4), (94±32), (88±23), (42±23) pg/L, and those in PiCCO group were respectively (37±15), (9±3), (10±3), (13±3), (12±5), (85±30), (60±26), (22±14) pg/L. The levels of cTnT of patients in PiCCO group on PBD 1, 2, 6, and 7 were significantly lower than those in tradition group (t=5.227, 4.751, 4.239, 3.845, P<0.01). The levels of cTnT immediately on admission and PBD 3, 4, and 5 of patients between the two groups were close (t=1.098, -1.562, -0.117, 1.107, P>0.05). (4) The levels of CK-MB of patients in PiCCO group on PBD 3, 6, and 7 were significantly lower than those in tradition group (t=3.123, 4.103, 3.178, P<0.05 or P<0.01). The levels of CK-MB immediately on admission and PBD 1, 2, 4, and 5 in patients between the two groups were close (t=0.351, 1.868, 1.100, 0.798, 2.094, P>0.05).@*Conclusions@#PiCCO monitoring technology can monitor and guide fluid resuscitation of patients with large area burn in the early stage more scientifically and reasonably, and the effect of reducing myocardial damage is better than traditional monitoring methods.

Application of an effective model in intraoral facial skeletal contour surgeries / 中华整形外科杂志

Intraoral facial contour surgery is one of the most popular craniofacial cosmetic surgeries in China, in spite of its challenging surgical technique and serious complication, such as fracture and bleeding. In addition, the key point, such as inadequate tissue exposure and high soft tissue tension cannot be simulated using traditional three-dimensional model. Consequently, craniomaxillofacial surgery requires a long learning curve for young surgeons. This article describes the establishment and application of a new model for intraoral facial contour surgery. Compared to young surgeons trained using traditional three-dimensional model, the authors confirmed this new surgical model is more reliable and effective. Therefore, it is worthy of being popularized.

Clinical significance of pulse contour cardiac output monitoring technology in guiding fluid replacement during shock stage of extensive burn / 中华烧伤杂志

Objective@#To explore the guiding significance of pulse contour cardiac output (PiCCO) monitoring technology in the treatment of fluid replacement during shock stage of extensive burn in clinic.@*Methods@#Sixty-five patients with extensive burn hospitalized in our unit from January 2014 to December 2018, conforming to the inclusion criteria, were recruited to conduct a prospective controlled research. According to the order of admission, 35 odd-numbered patients and 30 even-numbered patients were enrolled in routine rehydration group (25 males and 10 females) and PiCCO monitoring rehydration group (21 males and 9 females) respectively, with the age of (48±9) and (44±8) years respectively. All patients of the two groups were rehydrated according to the rehydration formula of the Third Military Medical University during shock stage. The rehydration speed was adjusted in routine rehydration group according to the general indexes of shock such as central venous pressure, mean arterial pressure, heart rate, respiratory rate, urine volume, and clinical symptoms of patients. PiCCO monitoring was performed in patients of PiCCO monitoring rehydration group, and the global end-diastolic volume index combined with the other relevant indicators of PiCCO were used to guide rehydration on the basis of the monitoring indicators of routine rehydration group. The heart rates and positive fluid balance volumes at post injury hour (PIH) 8, 16, 24, 32, 40, 48, 56, 64, and 72, the diuretic dosage at PIH 48 and 72, the total fluid replacement volumes, urine volumes, blood lactic acid, platelet count, and hematocrit at PIH 24, 48, and 72, the length of intensive care unit (ICU) stay, and the incidence of complications and death within 28 days after injury were compared between patients in the two groups. Data were processed with analysis of variance for repeated measurement, t test, Bonferroni correction, Mann-Whitney U test, chi-square test, and Fisher′s exact probability test.@*Results@#The heart rates of patients in the two groups were similar at PIH 8, 16, 24, 32, 40, 48, and 56 (t=0.775, 1.388, 2.511, 2.203, 1.654, 2.303, 1.808, P>0.05), and the heart rates of patients in PiCCO monitoring rehydration group at PIH 64 and 72 were obviously lower than those of routine rehydration group (t=3.229, 3.357, P<0.05 or P<0.01). The positive fluid balance volumes of patients in the two groups were similar at PIH 8, 16, 40, and 56 (t=0.768, 1.670, 2.134, 2.791, P>0.05), and the positive fluid balance volumes of patients in PiCCO monitoring rehydration group at PIH 24, 32, 48, 64, and 72 were obviously less than those of routine rehydration group (t=3.364, 4.047, 2.930, 2.950, 2.976, P<0.05 or P<0.01). The amount of diuretics used by patients in the two groups was similar at PIH 48 and 72 (Z=-0.697, -1.239, P>0.05). The total fluid replacement volumes of patients in PiCCO monitoring rehydration group at PIH 24, 48, and 72 were (13 864±4 241), (9 532±2 272), and (8 480±2 180) mL, respectively, obviously more than those in routine rehydration group [(10 388±2 445), (8 095±1 720), and (7 059±1 297) mL, respectively, t=-3.970, -2.848, -3.137, P<0.05 or P<0.01]. The urine volumes of patients in the two groups at PIH 24 were close (t=-1.027, P>0.05). The urine volumes of patients in PiCCO monitoring rehydration group at PIH 48 and 72 were (3 051±702) and (3 202±624) mL respectively, obviously more than those in routine rehydration group [(2 401±588) and (2 582±624) mL respectively, t=-4.062, -4.001, P<0.01]. The levels of blood lactate acid of patients in PiCCO monitoring rehydration group at PIH 24, 48, and 72 were obviously lower than those in routine rehydration group (t=4.758, 6.101, 3.938, P<0.01). At PIH 24 and 48, the values of the platelet count of patients in PiCCO monitoring rehydration group were obviously higher than those in routine rehydration group (t=-2.853, -2.499, P<0.05), and the values of hematocrit of patients in PiCCO monitoring rehydration group were obviously lower than those in routine rehydration group (t=2.698, 4.167, P<0.05 or P<0.01). Both the platelet count and hematocrit of patients in the two groups were similar at PIH 72 (t=-1.363, 0.476, P>0.05). The length of ICU stay of patients in PiCCO monitoring rehydration group was obviously shorter than that of routine rehydration group (t=2.184, P<0.05). Within 28 days after injury, the incidence of complications of patients in routine rehydration group was obviously higher than that in PiCCO monitoring rehydration group (P<0.05), while the mortality rate of patients in routine rehydration group was similar to that in PiCCO monitoring rehydration group (P>0.05).@*Conclusions@#The application of PiCCO monitoring technology in monitoring fluid replacement in patients with extensive burn can quickly correct shock, reduce the occurrence of organ complications caused by improper fluid replacement, and shorten the length of ICU stay, which is of great significance in guiding the treatment of burn shock.

Clinical application of irradiated homograft costal cartilage granule transplantation for the pyriform aperture sunken and deformity in the facial contour / 中华医学美学美容杂志

Objective To explore the clinical application of irradiated homograft costal cartilage (IHCC) granule transplantation for the pyriform aperture sunken and deformity in the facial contour.Methods From August 2016 to November 2017,a total of 29 female patients were received IHCC transplantation to the face contour.The standardized photos were taken before and after the operation and then survey of patient satisfaction was conducted.Results In a total of 29 patients,the postoperative 21 patients were satisfied with the IHCC transplantation.After the operation,5 cases were slightly highlighted and obvious bundles could be touched in the deep.At the early stage of operation,the cartilage particles were smoothed by means of manipulation.3 cases were not satisfied with full effect postoperatively and satisfied after secondary transplantation.Conclusions The IHCC granule transplantation for pyriform aperture sunken and deformity can increase the overall sense of facial coordination and anti-aging,and is a safe and effective treatment.

Improved marching cubes algorithm for 3D reconstruction / 中国医学影像技术

Objective: To explore the effect of three-dimensional reconstruction of abdominal organ CT images based on improved moving cube algorithm. Methods: An adaptive improved marching cube algorithm based on the universal tree structure and the contour points method based on the regional growth method were proposed. Firstly, the medical images were segmented, and all the voxels intersecting with the threshold were marked after the seed points were selected. A general tree structure was created to insert intersecting voxels into sub-nodes and determine the vertex index method based on the general tree. Simplify the acquisition of equivalence information by moving equivalence points to merge coplanar triangles. Based on abdominal CT images of a volunteer, a three-dimensional kidney model was constructed by using traditional moving cube algorithm and improved moving cube algorithm, and the effects were compared. Results: Compared with traditional algorithm, the triangle facets generated with the improved moving cube algorithm were reduced by 39.20%, the efficiency of the algorithm was improved by 37.59%, the surface of the three-dimensional model was smooth and lifelike, and the local details were more accurate. Conclusion: Based on the improved moving cube algorithm, three-dimensional reconstruction of abdominal organs in CT images can be achieved quickly and accurately.