Evaluation of the efficacy and safety of endoscopic injection of polidocanol combined with low-dose tissue glue occlusion in the treatment of F3 type esophageal varices in liver cirrhosis / 中国医师杂志

Objective:To explore the efficacy and safety of endoscopic injection of polidocanol combined with low-dose tissue glue occlusion in the treatment of F3 esophageal varices in liver cirrhosis.Methods:Retrospective analysis was made on 42 patients with cirrhosis type F3 esophageal varices admitted to the Affiliated Hospital of Zunyi Medical University from January 2020 to June 2021. According to different treatment methods, they were divided into the observation group and the control group, with 21 cases in each group. The observation group received endoscopic injection of polidocanol combined with low-dose tissue glue occlusion, while the control group received endoscopic injection of polidocanol. The differences in the effectiveness (remission rate of varices) and safety (incidence of intraoperative bleeding and postoperative rebleeding, incidence of ectopic embolism, incidence of esophageal ulcer, incidence of esophageal perforation, incidence of esophageal stricture) of the two groups of patients were compared.Results:The total effective rate of relieving esophageal varices in the observation group was significantly better than that in the control group [95.2%(20/21) vs 61.9%(13/21), χ 2=6.929, P=0.008]. There were no cases of ectopic embolism in both groups; The intraoperative bleeding rate in the observation group was 4.8% (1/21), significantly lower than the 38.1% (8/21) in the control group (χ 2=6.929, P=0.008); There was no statistically significant difference in postoperative rebleeding rates between the two groups [33.3%(7/21) vs 23.8%(5/21), χ 2=0.467, P=0.495]; The incidence of esophageal ulcers in the observation group was higher than that in the control group [23.8%(5/21) vs 0, χ 2=5.676, P=0.017], mainly caused by glue discharge ulcers; There were no cases of esophageal perforation and esophageal stricture in both groups. Conclusions:Endoscopic injection of polidocanol combined with low-dose tissue glue occlusion for the treatment of F3 esophageal varices in liver cirrhosis is safe, can greatly reduce the occurrence of intraoperative bleeding, and has a better one-time variceal eradication effect.

Efectividad del Tysuacril en la estomatitis aftosa / Effectiveness of Tysuacril in aphthous stomatitis

RESUMEN Introducción: el Tisuacryl es un biomaterial empleado en la cirugía general y bucal, así como en el tratamiento de la estomatitis aftosa, considerada un proceso multifactorial y actualmente la enfermedad ulcerosa más común de la cavidad oral. Objetivo: determinar la efectividad del Tisuacryl con respecto a la terapia convencional en el tratamiento de la estomatitis aftosa en Consolación del Sur, Pinar del Río, en el período comprendido entre septiembre 2018 y marzo 2020. Métodos: se realizó un estudio observacional analítico de casos y controles a 90 pacientes con estomatitis aftosa en Consolación del Sur, Pinar del Río, en el período comprendido entre septiembre 2018 y marzo 2020. La información se obtuvo de las historias clínicas individuales de Periodoncia al obtener el consentimiento oral y escrito de los pacientes o sus tutores. Los resultados se obtuvieron por análisis estadístico que incluyó el porciento y la prueba no paramétrica de Cochran Q. Resultados: predominó el sexo femenino y el grupo etario de 10 a 19 años para el 46,7 % en grupo estudio y el 42,2 % en grupo control; la disminución del dolor y la cicatrización iniciaron en el mayor número de pacientes a las 72 horas de tratamiento con Tisuacryl para el 91,1 % y el 55,6 % respectivamente; a los cinco días de aplicación del medicamento la totalidad de ellos estaban asintomáticos y casi todas las aftas bucales cicatrizadas. Conclusiones: las lesiones aftosas en la cavidad bucal evolucionaron satisfactoriamente con la aplicación del Tisuacryl al ser esta una alternativa efectiva de tratamiento en comparación con la terapia convencional.

ABSTRACT Introduction: Tisuacryl is a biomaterial used in general and oral surgery, as well as in the treatment of aphthous stomatitis, considered a multifactorial process and currently the most common ulcerative disease of the oral cavity. Objective: to determine the effectiveness of Tisuacryl with respect to conventional therapy in the treatment of aphthous stomatitis in Consolación del Sur, Pinar del Río, in the period from September 2018 to March 2020. Methods: an analytical observational case-control study was conducted on 90 patients with aphthous stomatitis in Consolación del Sur, Pinar del Río, in the period from September 2018 to March 2020. Information was obtained from individual Periodontics medical records by obtaining oral and written consent from patients or their guardians. Results were obtained by statistical analysis including percent and Cochran Q nonparametric test. Results: female sex and age group from 10 to 19 years old predominated for 46,7 % in the study group and 42,2 % in the control group; the decrease of pain and healing started in most patients 72 hours after treatment with Tisuacryl for 91,1 % and 55,6 % respectively; being five days after application of the drug all of them asymptomatic and almost all the oral aphthae healed. Conclusions: aphthous lesions in the oral cavity evolved satisfactorily with the application of Tisuacryl being an effective treatment alternative in comparison with conventional therapy.

Use of cyanoacrylate for the stabilization of tissues in root coverage procedures: A case series report with 5 years follow up

ABSTRACT: A variety of periodontal plastic surgery techniques have been proposed to correct aesthetic and functional problems caused by gingival recession, with root coverage using connective tissue grafts being the one most commonly performed. These surgeries, however, are partially dependent on tissue graft stability. In this case series, we describe the use of a tissue adhesive (cyanoacrylate) as a solution for graft stabilization. Two patients with Cairo's type 1 gingival recession were treated with an envelope technique using connective tissue graft stabilized with cyanoacrylate alone. The results were a faster procedure and complete root coverage, even after 5 years of follow-up. Our findings suggest that cyanoacrylates can be an alternative to standard graft stabilizing procedures, leading to a stable root coverage in RT1 recessions.

Uso de cola cirúrgica no reparo de lacerações perineais intraparto: estudo série de casos / Uso de pegamento quirúrgico para reparar desgarros perineales intraparto: estudio serie de casos / Use of surgical glue to repair intrapartum perineal lacerations: a case series study

Resumo Objetivo Descrever o uso da cola cirúrgica no reparo do trauma perineal no parto normal. Métodos Estudo série de casos realizado em três momentos (até 2 horas, 12-24 horas e 36-48 horas após o parto), em Itapecerica da Serra, SP. Foram incluídas mulheres que tiveram parto normal com trauma perineal com indicação de sutura (laceração de primeiro ou segundo graus e episiotomia). O trauma perineal foi reparado exclusivamente com cola cirúrgica Glubran-2®. Avaliou-se: intensidade da dor perineal (Escala Visual Numérica com 11 pontos), processo de cicatrização (escala REEDA de 15 pontos), satisfação com o reparo (escala Likert de 5 pontos). Os dados foram analisados de forma descritiva e inferencial comparando os três momentos. Resultados A técnica de aplicação da cola e a quantidade necessária foram definidas em uma amostra de 19 mulheres. Destas, 78,9% tiveram laceração de primeiro grau, 15,8% de segundo grau e 5,3% episiotomia. Os desfechos nos momentos 1, 2 e 3, foram respectivamente: ausência de dor (73,6%, 94,7% e 89,4%); escore ≤1 na escala REEDA (94,7%, 78,9% e 84,2%); 100% satisfeitas com o reparo em todos os momentos. Não houve diferença pelo teste de Friedman para dor e satisfação. O processo de cicatrização mostrou diferença, porém sem confirmação no pós-teste hoc. Conclusão A aplicação da cola mostrou-se viável para avaliação em uma amostra maior de mulheres, pois os resultados sugerem boa aceitação pelas mulheres e dor de baixa intensidade ou ausente, cicatrização adequada e alta satisfação com o reparo nas primeiras 48 horas após o parto.

Resumen Objetivo Describir el uso de pegamento quirúrgico para reparar traumas perineales en partos vaginales. Métodos Estudio serie de casos realizado en tres momentos (hasta 2 horas, de 12 a 24 horas y de 36 a 48 horas después de parto), en Itapecerica da Serra, estado de São Paulo. Se incluyeron mujeres que tuvieron parto vaginal con trauma perineal e indicación de sutura (desgarro de primer o segundo grado y episiotomía). El trauma perineal fue reparado exclusivamente con pegamento quirúrgico Glubran-2®. Se evaluó la intensidad del dolor perineal (Escala Visual Numérica de 11 puntos), el proceso de cicatrización (Escala REEDA de 15 puntos) y la satisfacción respecto a la reparación (Escala Likert de 5 puntos). Los datos fueron analizados de forma descriptiva e inferencial, comparando los tres momentos. Resultados La técnica de aplicación del pegamento y la cantidad necesaria fueron definidas en una muestra de 19 mujeres. De ellas, el 78,9 % tuvieron un desgarro de primer grado, el 15,8 % de segundo grado y el 5,3 % episiotomía. Los resultados de los momentos 1, 2 y 3 fueron, respectivamente: ausencia de dolor (73,6 %, 94,7 % y 89,4 %); puntuación ≤1 en la escala REEDA (94,7 %, 78,9 % y 84,2 %); 100 % satisfechas con la reparación en todos los momentos. No se observó diferencia de dolor y satisfacción con la prueba de Friedman. El proceso de cicatrización mostró diferencia, pero sin confirmación en la prueba post hoc. Conclusión La aplicación del pegamento demostró ser viable para un análisis con una muestra mayor de mujeres, ya que los resultados sugieren buena aceptación por parte de las mujeres, dolor de baja intensidad o ausente, cicatrización adecuada y alta satisfacción respecto a la reparación en las primeras 48 horas después del parto.

Abstract Objective To describe the use of surgical glue to repair perineal trauma during normal delivery. Methods This is a case series study, which was carried out in three moments (up to 2 hours, 12-24 hours and 36-48 hours after delivery) in Itapecerica da Serra, SP. Women who had a normal delivery with perineal trauma with a suture (first or second degree laceration and episiotomy) were included. Perineal trauma was repaired exclusively with Glubran-2® surgical glue. Perineal pain intensity (11-point Visual Numeric Scale), healing process (15-point REEDA scale), satisfaction with repair (5-point Likert scale) were assessed. Data were analyzed in a descriptive and inferential way comparing the three moments. Results The technique of applying the glue and the required amount were defined in a sample of 19 women. Of these, 78.9% had first-degree lacerations, 15.8%, second-degree lacerations and 5.3%, episiotomy. The outcomes at moments 1, 2 and 3 were absence of pain (73.6%, 94.7% and 89.4%), score ≤1 on the REEDA scale (94.7%, 78.9% and 84, two%); 100% were satisfied with the repair at all times. There was no difference by the Friedman test for pain and satisfaction. The healing process showed a difference, but without confirmation in the hoc post-test. Conclusion The glue application proved to be viable for assessment in a larger sample of women, as the results suggest good acceptance by women and low or no pain, adequate healing and high satisfaction with the repair in the first 48 hours after delivery.

Prevalence and associated factors of medical adhesive-related skin injury in cardiac critical care units / Prevalencia de lesiones de la piel relacionadas con adhesivos médicos y factores asociados en unidades críticas cardiológicas / Prevalência de lesão de pele relacionada a adesivos médicos e fatores associados em unidades críticas cardiológicas

ABSTRACT Objective: To identify and analyze the point prevalence of medical adhesive-related skin injury in patients hospitalized in cardiac Intensive Care Units and demographic and clinical factors associated to their occurrence. Method: Cross-sectional study conducted in Intensive Care Units of two public hospitals, reference centers for cardiology, located in São Paulo city, with 123 patients. Demographic and clinical data from patients' medical records were collected and lesions were identified through skin inspection. The data were analyzed through descriptive statistics and bivariate and multivariate analysis (Classification and Regression Tree). Results: Medical adhesive-related skin injury was presented by 28 patients, which amounts to a 22.7% prevalence. Its main causative agent was transparent polyurethane film (46.9%) and the cervical region was the most affected area (25.1%). From the multivariate analysis, the associated factors were found to be the presence of serum urea higher than or equal to 48.5 mg/dL and platelets lower than 193,500 mm3 or platelets higher than or equal to 193,500 mm3 and systolic blood pressure higher than or equal to 122 mmHg. Conclusion: This study has contributed to knowledge related to the epidemiology of this type of injury, favoring preventive care planning.

RESUMEN Objetivo: Identificar y analizar la prevalencia puntual de las lesiones de la piel relacionadas con adhesivos médicos en pacientes ingresados en Unidades de Cuidados Intensivos cardiológicos y los factores demográficos y clínicos asociados a su aparición. Método: Estudio transversal realizado en las Unidades de Cuidados Intensivos de dos hospitales públicos, de referencia en cardiología, ubicados en la ciudad de São Paulo, con 123 pacientes. Los datos demográficos y clínicos se recogieron de las historias clínicas de los pacientes y las lesiones se identificaron mediante la inspección de la piel. Los datos se analizaron mediante estadísticas descriptivas y análisis bivariado y multivariado (Classification and Regression Tree). Resultados: Hubo 28 pacientes con lesiones de la piel relacionadas con adhesivos médicos, con una prevalencia del 22,7%. El principal agente causante fue la película de poliuretano transparente (46,9%) y la región más afectada fue la cervical (25,1%). Mediante un análisis multivariado, los factores asociados fueron la presencia de urea sérica mayor o igual a 48,5 mg/dL y plaquetas menores de 193.500 mm3 o plaquetas mayores o iguales a 193.500 mm3 y presión arterial sistólica mayor o igual a 122 mmHg. Conclusión: El estudio contribuyó al conocimiento relacionado con la epidemiología de este tipo de lesión, favoreciendo la planificación de la atención preventiva.

RESUMO Objetivo: Identificar e analisar a prevalência pontual de lesão de pele relacionada a adesivos médicos em pacientes internados em Unidades de Terapia Intensiva cardiológicas e os fatores demográficos e clínicos associados à sua ocorrência. Método: Estudo transversal conduzido nas Unidades de Terapia Intensiva de dois hospitais públicos, referência em cardiologia, localizados no município de São Paulo, com 123 pacientes. Foram coletados dados demográficos e clínicos dos prontuários dos pacientes e as lesões foram identificadas por meio de inspeção da pele. Os dados foram analisados por meio de estatística descritiva e análises bivariada e multivariada (Classification and Regression Tree). Resultados: Apresentaram lesão de pele relacionada a adesivos médicos 28 pacientes, perfazendo prevalência de 22,7%. O principal agente causador foi o filme de poliuretano transparente (46,9%) e a região mais acometida foi a cervical (25,1%). Pela análise multivariada, os fatores associados foram presença de ureia sérica maior ou igual a 48,5 mg/dL e plaquetas menores que 193.500 mm3 ou plaquetas maiores ou iguais a 193.500 mm3 e pressão arterial sistólica maior ou igual a 122 mmHg. Conclusão: O estudo contribuiu para os conhecimentos relacionados à epidemiologia desse tipo de lesão, favorecendo o planejamento de cuidados preventivos.

Efectividad del Tisuacryl como apósito periodontal en técnicas quirúrgicas / Effectiveness of Tisuacryl as a periodontal dressing in surgical techniques

RESUMEN Introducción: el Tisuacryl es un biomaterial de gran efectividad como apósito periodontal en papilectomías, gingivectomías y gingivoplastias. Objetivo: determinar la efectividad del Tisuacryl con respecto al cemento quirúrgico o Quirucem, usados como apósito periodontal en cirugías periodontales. Métodos: estudio observacional analítico de casos y controles en 60 pacientes con diagnóstico de gingivitis crónica fibrosa y fibroedematosa desde septiembre de 2016 a junio de 2017. Se realizó examen físico, confección de historia clínica de periodoncia, tratamiento periodontal y selección de pacientes con necesidad de tratamiento quirúrgico. Se utilizaron medidas de resúmenes para variables cualitativas como el porcentaje y para variables cuantitativas como la media y la desviación estándar. Se empleó el test estadístico prueba de Chi cuadrado con nivel de significación de &= 0.05 para la comparación de los grupos con diferentes modalidades de tratamiento. Resultados: el total de los pacientes tratados con Tisuacryl expresaron comodidad con el uso de este y no se produjo acúmulo de placa dentobacteriana. Solo el 30 % presentó enrojecimiento a los siete días, pero a los 15 se constató cicatrización total de la herida. Con Quirucem existieron todos los síntomas y signos estudiados y en todos los casos el enrojecimiento; más de la mitad presentó incomodidad en la evolución y el 40 % de los casos a los 15 días continuaban sin cicatrizar totalmente. Conclusiones: el Tisuacryl resultó más efectivo con respecto al Quirucem considerando el menor tiempo de cicatrización, mayor comodidad y estética en los pacientes.

ABSTRACT Introduction: Tisuacryl is a highly effective biomaterial as a periodontal dressing in papillectomies, gingivectomies and gingivoplasties. Objective: to determine the effectiveness of Tisuacryl with respect to surgical cement or Quirucem, used as a periodontal dressing in periodontal surgeries. Methods: observational analytical study of cases and controls in 60 patients with the diagnosis of chronic fibrous and fibro-edematous gingivitis from September 2016 to June 2017. Physical examination, periodontal history, periodontal treatment and selection of patients in need of surgical treatment were performed. Summary measures were used for qualitative variables, such as percentage and for quantitative variables such as mean and standard deviation. The chi-square statistical test with a significance level of &= 0.05 was used to compare the groups with different treatment modalities. Results: all patients treated with Tisuacryl expressed comfort with its use and no accumulation of dentobacterial plaque occurred. Only 30 % had redness at seven days, but at 15 days the wound was completely healed. With Quirucem all the symptoms and signs studied were present along with redness in all cases; more than the half of patients complained of discomfort during evolution and 40 % of the cases at 15 days remained totally unhealed. Conclusions: Tisuacryl was more effective than Quirucem considering the shorter time of cicatrization, greater comfort and better aesthetics results in patients.

Incisões cirúrgicas mamárias tratadas com 2-octilcianoacrilato versus sutura intradérmica com fio de nylon: ensaio clínico randomizado / Surgical breast incisions treated with 2-octyl-cyanoacrylate versus intradermal nylon suture: a randomized clinical trial

RESUMO Objetivo: avaliar o perfil de segurança e os resultados estéticos do 2-octilcianoacrilato versus sutura intradérmica com fio de nylon em cirurgias mamárias. Métodos: ensaio clínico randomizado, aberto, que avaliou a ocorrência de complicações, como deiscência, hematoma, infecção e reações alérgicas após o uso do 2-octilcianoacrilato ou do fio de nylon. Também foi analisado o tamanho das incisões, o tempo de fechamento da pele e o tempo cirúrgico total. O resultado estético foi avaliado após 40 e 180 dias da cirurgia, por meio da largura média da ferida operatória e por avaliação subjetiva conceitual (ótimo, bom, razoável ou ruim). Resultados: foram incluídas 79 pacientes, sendo 37 no grupo 2-octilcianoacrilato e 42 no grupo de sutura com fio de nylon. O estudo foi interrompido antes do término do recrutamento dos pacientes pela ocorrência de maior número de deiscências no grupo do adesivo (OR: 11,42; IC95%: 1,36-96,02; p=0,007). Em relação às demais complicações analisadas, ao tempo cirúrgico e ao resultado estético no pós-operatório, não se observaram diferenças significativas entre os grupos. A média do tamanho da ferida operatória foi maior no grupo do adesivo em relação ao grupo da sutura, mas não houve correlação entre o tamanho da ferida e o maior número de deiscências. Conclusão: o 2-octilcianoacrilato apresentou maior risco de deiscência em relação à sutura intradérmica, com resultados estéticos equivalentes.

ABSTRACT Objective: to evaluate the safety profile and aesthetic results of 2-octyl-cyanoacrylate versus intradermal nylon suture in breast surgeries. Methods: an open-label, randomized, clinical trial evaluating the occurrence of complications, such as dehiscence, hematoma, infection, and allergic reactions after the use of 2-octyl-cyanoacrylate or nylon thread. The size of the incisions, skin closure time, and total surgical time were also analyzed. The aesthetic outcome was evaluated at 40 and 180 days after surgery, by means of the average width of the surgical wound and by subjective conceptual assessment (optimal, good, reasonable, or poor). Results: 79 patients were included: 37 in the 2-octyl-cyanoacrylate group and 42 in the nylon suture group. The study was stopped before the end of patient recruitment due to the occurrence of a greater number of dehiscences in the adhesive group (OR: 11.42; 95%CI: 1.36-96.02; p=0.007). Regarding the other analyzed complications, the surgical duration and postoperative aesthetic result, no significant differences were observed between the groups. The mean operative wound size was greater in the adhesive group than in the suture group, but there was no correlation between wound size and the largest number of dehiscences. Conclusion: while the cosmetic outcomes with the two techniques were similar, there was a greater risk of dehiscence with the use of 2-octyl-cyanoacrylate compared to intradermal suturing.

Evaluation of tensile strength of tissue adhesives made of fibrin and cyanoacrylate used as reinforcement of colon suture in "ex vivo" swine

ABSTRACT Aim: To evaluate rupture pressures of tissue adhesives of cyanoacrylate (Omnex®) and fibrin (Evicel®), used as reinforcement in colonic suture from "ex vivo" swine. Methods: Surgical procedures were performed in the Surgical Technique Laboratory. From a division in segments of 10 cm of descending colon and sigmoid colon from three "ex vivo" female swine, Landrace breed, which were resected in less than six hours after the slaughter time, 30 segments were selected, 10 of each animal. They were stored in saline solution 0.9% at 36 °C, being randomly allocated in three groups (Control, Evicel and Omnex), each one containing 10 segments. Results: The lower and higher pressure values found in the groups Control, Evicel and Omnex were 36 mmHg and 41 mmHg, 70 mmHg and 90 mmHg, 90 mmHg and 120 mmHg, respectively. Containing statistical significance (p-value <0.0001) concerning the 2 to 2 comparisons (Control, Evicel and Omnex) with 95% trusting rate based on the application of the Turkey Method. Conclusion: One concludes that the use of tissue adhesives in anastomoses colonic in an experimental animal model of "ex vivo" swine increased the anastomoses rupture pressures. Among the tested adhesives, cyanoacrylate presented higher rupture pressure in relation to fibrin adhesive.

RESUMO Objetivo: Avaliar as pressões de ruptura dos adesivos teciduais de Cianoacrilato (Omnex®) e de Fibrina (Evicel®), usados como reforço em suturas colônicas de suínos "ex-vivo". Métodos: Os procedimentos cirúrgicos realizados foram realizados no Laboratório de Técnica Cirúrgica. A partir da divisão em segmentos de 10 cm do colo descendente e colo sigmoide de três suínas fêmeas ex-vivo, da raça Landrace, ressecados em tempo inferior a seis horas em relação ao momento do abate, foram selecionados 30 segmentos, 10 de cada animal. Foram armazenados em soro fisiológico 0,9% a 36 °C, alocando-se aleatoriamente esses segmentos em três grupos (Controle, Evicel e Omnex) com 10 segmentos cada. Resultados: Os menores e maiores valores pressóricos encontrados nos grupos Controle, Evicel e Omnex foram 36 mmHg e 41 mmHg, 70 mmHg e 90 mmHg, 90 mmHg e 120 mmHg, respectivamente. Com significância estatística (Valor-p < 0,0001) para as comparações 2 a 2 (Sutura, Evicel e Omnex) com um intervalo de confiança de 95% construído a partir da aplicação do método de Turkey. Conclusão: A partir desse estudo conclui-se que o uso de adesivos teciduais em anastomoses colônicas, em modelo experimental animal de suíno ex-vivo, aumentou as pressões de ruptura das anastomoses. Dentre os adesivos testados, o adesivo de Cianoacrilato apresentou maiores pressões de ruptura em relação ao adesivo de Fibrina.

The effects of ethyl-2-cyanoacrylate and butyl-2-cyanoacrylate in the process of bone healing in rats. A controlled experimental study / Efeitos do etil-2-cianoacrilato e do butil-2-cianoacrilato no processo de consolidação óssea em ratos. Estudo experimental controlado

ABSTRACT Objective: Synthetic adhesives are used by various medical specialties, especially in surgery; however, studies reporting their use in orthopedic practice are scarce. The aim of this study was to compare the results in using ethyl-2-cyanoacrylate or butyl-2-cyanoacrylate in the treatment of fractures in rats. Methods: This was an experimental prospective controlled study in 90 rats, with humerus, femur, and tibia fractures, treated with ethyl-2-cyanoacrylate (SB group; n = 45) or butyl-2-cyanoacrylate (HA group; n = 45). Biomechanical and histomorphometric analyses were performed at three different moments (60, 120, and 180 days); besides a clinical study performed weekly by measurement of the animals body mass. Results: No differences were observed regarding body mass (p = 0.07). In both groups, there were no significant differences regarding maximum load (p = 0.6), yield point strength (p = 0.6), and stiffness coefficient (p = 0.4) of the femurs. The same was observed in tibias for maximum load (p = 0.4), yield point strength (p = 0.7), and stiffness coefficient (p = 0.6). The humerus from both groups had similar bone callus area (p = 0.66). In both groups, there were no statistical differences related to inflammatory cells (p = 0.4), osteoblasts (p = 0.2), and osteoclasts (p = 0.2). Conclusion: Ethyl-2-cyanoacrylate was more effective than butyl-2-cyanoacrylate in the treatment of fractures in rats.

RESUMO Objetivo: Os adesivos sintéticos são usados em várias especialidades médicas cirúrgicas, contudo, os estudos que relatam seu uso na prática ortopédica são escassos. O objetivo deste trabalho foi comparar os resultados do uso do etil-2-cianoacrilato e do butil-2-cianoacrilato no tratamento de fraturas em ratos. Métodos: Foi realizado um estudo experimental, prospectivo e controlado em 90 ratos com fraturas de úmero, fêmur e tíbia, tratados com etil-2-cianoacrilato (grupo SB; n = 45) ou butil-2-cianoacrilato (grupo HA; n = 45). Foram realizadas análises biomecânicas e histomorfométricas em três momentos (60, 120 e 180 dias), além do estudo clínico pela aferição semanal da massa corporal dos animais. Resultados: Não foram observadas diferenças relacionadas à massa corporal dos animais (p = 0,07). Os fêmures de ambos os grupos não apresentaram diferença com relação à carga máxima (p = 0,6), limite de elasticidade (p = 0,6) e coeficiente de rigidez (p = 0,4). Analisando-se as tíbias, o mesmo foi observado com relação à carga máxima (p = 0,4), ao limite de elasticidade (p = 0,7) e ao coeficiente de rigidez (p = 0,6). Os úmeros de ambos os grupos apresentaram a mesma área de calo ósseo formado (p = 0,66). Em ambos os grupos, não houve diferença estatística relacionada ao número de osteoblastos (p = 0,2), osteoclastos (p = 0,2) e células inflamatórias (p = 0,4). Conclusão: O etil-2-cianoacrilato foi mais eficaz do que o butil-2-cianoacrilato no tratamento de fraturas em ratos.

Cola adesiva cirúrgica no reparo de lacerações perineais de primeiro grau no parto normal: estudo piloto aleatorizado controlado / Tissue adhesive for first-degree perineal tears repairing during normal delivery: a pilot randomized controlled trial

Introdução: O trauma perineal provocado pelo parto vaginal e seu reparo são importantes preocupações relacionadas ao períneo. A técnica ideal de reparo deve ser rápida, indolor, de fácil execução e que reduza a dor no puerpério. As evidências científicas apontam que a técnica e o material mais adequados para o reparo do trauma perineal são a sutura contínua e o fio poliglactina 910 de rápida absorção. Entretanto, em lacerações de primeiro e segundo graus, apesar de promover boa cicatrização, a sutura está relacionada à dor no períneo. A cola adesiva cirúrgica é um material utilizado em diversas cirurgias e especialidades médicas, com alto grau de resistência e facilidade no procedimento cirúrgico, o que parece se apresentar como uma alternativa eficaz no reparo perineal. Objetivo: Determinar a viabilidade de um ensaio clínico controlado e aleatorizado (ECA) sobre o uso da cola adesiva cirúrgica no reparo de lacerações perineais de primeiro grau durante o parto normal. Método: Estudo piloto paralelo, controlado e aleatorizado comparando a cola adesiva cirúrgica Epiglu® (etil-2-cianoacrilato) com o fio Vicryl Rapide® (poliglactina 910) no reparo perineal, realizado no Pronto Socorro e Maternidade Municipal Zoraide Eva das Dores, Itapecerica da Serra-SP. A amostra foi constituída por 20 mulheres com lacerações perineais de primeiro grau com necessidade de reparo durante o parto normal, distribuídas no grupo experimental (GE; n=10; submetidas ao reparo com Epiglu®) e grupo controle (GC; n=10; submetidas ao reparo com sutura com Vicryl Rapide®). O desfecho primário foi a ocorrência e intensidade da dor perineal após o parto e os desfechos secundários foram o processo de cicatrização, a satisfação da mulher com reparo perineal e o tempo dispendido pelo profissional para o reparo. Os desfechos foram avaliados pela Escala Visual Numérica de 11 pontos para intensidade da dor perineal; Escala REEDA, para cicatrização perineal; Escala Visual Analógica para satisfação da mulher; cronômetro digital para contagem do tempo de reparo dispendido em ambas as técnicas. Os dados foram coletados em quatro etapas: até 2 horas pós-parto, 12-24 horas, 36-48 horas e 10-20 dias pós-parto. Resultados: A média da intensidade da dor perineal foi significativamente menor entre as mulheres no GE, em todas as etapas do estudo (variação de 2,0-0,2 e 2,5-0,6 nos GE e GC, respectivamente). A cicatrização perineal apresentou escores significativamente melhores na escala REEDA entre as mulheres no GE, em todas as etapas (variação de 0,6-0,0 e 1,8-0,7, nos GE e GC, respectivamente). A satisfação das mulheres com reparo perineal foi significativamente superior no GE (100% estavam satisfeitas ou muito satisfeitas), em comparação com o GC (10% a 20% estavam insatisfeitas ou muito insatisfeitas). A média de tempo gasto para o reparo perineal foi 5 minutos no GE e 21 minutos no GC (p<0,001). Conclusão: O estudo mostrou que é viável adotar a técnica de reparo com Epiglu® utilizada no estudo piloto, bem como os mesmos desfechos e períodos de seguimento pós-parto. Além disso, os resultados foram importantes para comparar os métodos de reparo perineal e calcular o tamanho da amostra para o ECA. Protocolo: O estudo foi registrado no Portal de Registro Brasileiro de Ensaios Clínicos http://www.ensaiosclinicos.gov.br/rg/RBR-2h84gt/.

Introduction: One of the important concerns regarding the perineum is the trauma caused by the vaginal delivery and perinealrepair. The ideal perineal repair technique should be quick, painless, easy to perform in order to decrease pain in the puerperium. The scientific evidence indicates that the most suitable technique and material for the repair of perineal trauma are continuous suture and the polyglactin 910 rapid absorption thread. However, in the first and second degrees lacerations, despite promoting good healing, the suture is associated with perineum pain. The surgical adhesive is a tool used in several surgeries and medical specialties, had high resistance and is ease to manage during the surgical procedure, which seems to be an effective alternative for perineal repair. Objective: To determine the feasibility of a clinical randomized controlled trial (RCT) on the use of surgical adhesive in the repair of first-degree perineal trauma during vaginal delivery. Methods: Parallel, controlled and randomized pilot study comparing the outcomes of the use of surgical adhesive glue Epiglu (ethyl-2-cyanoacrylate) and Vicryl Rapide (polyglactin 910) thread in perineal repair. The research was performed at Pronto Socorro e Maternidade Zoraide Eva das Dores, Itapecerica da Serra-SP, Brazil. The sample comprised 20 women with first-degree perineal trauma that need repair during normal delivery, distributed in experimental group (EG, n=10, undergoing repair with Epiglu) and control group (CG;n=10, undergoing repair with Vicryl Rapide). The primary outcome was the occurrence and intensity of perineal pain after delivery and secondary outcomes were healing process, the womans satisfaction on perineal repair and the time spent by the professional to repair the trauma. The outcomes were evaluated by the 11-point Visual Numeric Scale for perineal pain intensity; REEDA Scale for perineal healing; Visual Analogue Scale for womens satisfaction; digital stopwatch for counting the repair time in both suture techniques. Data were collected in four stages: up to 2 hours after delivery, 12-24 hours, 36-48 hours and 10-20 days postpartum. Results: In all study stages, the average of the intensity of perineal pain among women in EG was significantly lower than CG (variation of 2.0-0.2 in EG and 2.5-0.6 in CG). In all stages, perineal healing showed significantly better REEDA scale scores among women in EG, (variation of 0.6-0.0 in EG and 1.8-0.7 in CG). The womens satisfaction with perineal repair was significantly higher in EG (100% were satisfied or very satisfied), compared with CG (10% to 20% were unsatisfied or very unsatisfied). The average time for perineal repair was 5 minutes in EG and 21 minutes in CG (p<0.001). Conclusion: The results of the study were important to compare perineal repair methods and calculate the sample size for the future RCT. In addition, we showed that is possible to adopt the perineal repair technique with Epiglu developed in the pilot study, as well as the same outcomes and postpartum follow-up periods. Protocol: The study was registered in the Brazilian Clinical Trials Registry http://www.ensaiosclinicos.gov.br/rg/RBR-2h84gt/.

Biomimetic characteristics of mussel adhesive protein-loaded collagen membrane in guided bone regeneration of rabbit calvarial defects

PURPOSE: The aim of the present study was to evaluate the biocompatibility and barrier function of mussel adhesive protein (MAP)-loaded collagen membranes in guided bone regeneration (GBR). METHODS: Eight male New Zealand white rabbits were used. Four circular defects (diameter: 8 mm) were created in the calvarium of each animal. The defects were randomly assigned to 1) a negative control group, 2) a cyanoacrylate (CA)-loaded collagen membrane group (the CA group), 3) a MAP-loaded collagen membrane group (the MAP group), and 4) a group that received a polycaprolactone block with MAP-loaded collagen membrane (the MAP-PCL group). Specimens were harvested at 2 weeks (n=4) and 8 weeks (n=4) postoperatively for observational histology and histometric analysis. RESULTS: In the histologic analysis, MAP was completely absorbed without any byproducts. In contrast, some of the CA adhesive remained, showing an inflammatory reaction, at 8 weeks. In the MAP-PCL group, the MAP-loaded collagen membranes served as a barrier membrane despite their fast degradation in GBR. No significant difference was found in the amount of new bone between the MAP-PCL and MAP groups (1.82±0.86 mm2 and 2.60±0.65 mm2, respectively). CONCLUSIONS: The MAP-loaded collagen membrane functioned efficiently in this rabbit calvarial GBR model, with excellent biocompatibility. Further research is needed to assess clinical applications in defect types that are more challenging for GBR than those used in the current model.

Comparison of arterial repair through the suture, suture with fibrin or cyanoacrylate adhesive in ex-vivo porcine aortic segment

Abstract Introduction: Tissue adhesives can be used as adjacent to sutures to drop or avoid bleeding in cardiovascular operations. Objective: To verify the efficiency of fibrin and cyanoacrylate adhesive to seal arterial sutures and if the adhesives penetrate through suture line to the inner of arteries. Methods: 20 abdominal aorta segments of pigs were divided into two groups according to the adhesive which would be used as adjacent to the suture. In every arterial segment an arteriotomy was done, followed by a conventional artery closure. Afterwards a colloidal fluid was injected inside the arterial segment with a simultaneous intravascular pressure monitoring up to a fluid leakage through the suture. This procedure was repeated after application of one of the adhesives on the suture in order to check if the bursting pressure increases. The inner aorta segments also were analyzed in order to check if there was intraluminal adhesive penetration. Results: In Suture 1 group, the mean arterial pressure sustained by the arterial suture reached 86±5.35 mmHg and after the fibrin adhesive application reached 104±11.96 (P<0.002). In the Suture 2 group, the mean arterial pressure sustained by the suture reached 83±2.67 mmHg and after the cyanoacrylate adhesive application reached 152±14.58 mmHg (P<0.002). Intraluminal adhesive penetration has not been noticed. Conclusion: There was a significant rise in the bursting pressure when tissue adhesives were used as adjacent to arterial suture, and this rise was higher if the cyanoacrylate adhesive was used. In addition, the adhesives do not penetrate through the suture line into the arteries.

Local and systemic effects of fibrin and cyanoacrylate adhesives on lung lesions in rabbits

OBJECTIVES: Tissue adhesives can be used to prevent pulmonary air leaks, which frequently occur after lung interventions. The objective of this study is to evaluate local and systemic effects of fibrin and cyanoacrylate tissue adhesives on lung lesions in rabbits. METHODS: Eighteen rabbits were submitted to videothoracoscopy + lung incision alone (control) or videothoracoscopy + lung incision + local application of fibrin or cyanoacrylate adhesive. Blood samples were collected and assessed for leukocyte, neutrophil and lymphocyte counts and interleukin-8 levels preoperatively and at 48 hours and 28 days post-operatively. After 28 days, the animals were euthanized for gross examination of the lung surface, and lung fragments were excised for histopathological analysis. RESULTS: Fibrin and cyanoacrylate produced similar adhesion scores of the lung to the parietal pleura. Microscopic analysis revealed uniform low-cellular tissue infiltration in the fibrin group and an intense tissue reaction characterized by dense inflammatory infiltration of granulocytes, giant cells and necrosis in the cyanoacrylate group. No changes were detected in the leukocyte, neutrophil or lymphocyte count at any time-point, while the interleukin-8 levels were increased in the fibrin and cyanoacrylate groups after 48 hours compared with the pre-operative control levels (p<0.01). CONCLUSION: Both adhesive agents promoted normal tissue healing, with a more pronounced local inflammatory reaction observed for cyanoacrylate. Among the serum markers of inflammation, only the interleukin-8 levels changed post-operatively, increasing after 48 hours and decreasing after 28 days to levels similar to those of the control group in both the fibrin and cyanoacrylate groups.

Comparação de resultado estético em cicatrizes com uso de fios cirúrgicos e Prineo® / Comparison between surgical sutures and Prineo® in terms of esthetic result and scar formation

Introdução: Cicatrização de ferida é um processo bem organizado que tem como finalidade a reparação tecidual completa. Colas e adesivos tópicos oferecem uma alternativa não invasiva, de retirada fácil e espontânea; boa força tênsil; menor tempo de aplicação, sendo o Prineo® uma cola adesiva associada a uma malha de poliéster aplicados sobre a ferida. Método: Trata-se de um estudo transversal retrospectivo com análise de 101 procedimentos cirúrgicos no período de 2012 a 2014, nos quais a síntese da ferida operatória ocorreu com fios cirúrgicos de náilon ou Prineo®, sendo aplicada análise estatística. Resultados: Neste estudo, seis pacientes apresentaram dermatite de contato ao uso do Prineo® com significância estatística (p = 0,042). O uso desse sistema diminuiu a taxa de alargamento cicatricial (p < 0,05). O presente trabalho não apresentou diferença estatística (p = 0,068) na qualidade da cicatriz entre os pacientes que utilizaram Prineo® em relação ao grupo controle, demonstrando que em ambos os grupos o resultado cicatricial foi de excelente (87%) a bom (27%) na sua maioria. Conclusão: Conclui-se no estudo que os pacientes que utilizaram o sistema de octil-2-cianocrilato associado a malha, Prineo®, apresentaram menores índices de alargamento cicatricial, dependentes de uma espessura de derme satisfatória, e maiores taxas de dermatites por contato em relação àqueles em que a ferida foi encerrada com fios cirúrgicos. Os dois grupos demonstraram qualidades cicatriciais excelentes a bons, sem diferença estatística em tais resultados estéticos cicatriciais.

Introduction: Wound healing is a well-organized, directed process of tissue repair. The process can be expedited using topical glues and adhesives, which offer a non-invasive, easily removable alternative to suturing. Furthermore, such products have good tensile strength and involve lower application time. In particular, the Prineo® adhesive is applied to a polyester mesh that covers the wound. Method: We carried out a retrospective, cross-sectional study, with subsequent statistical analysis , involving 101 surgical procedures in which wound closure was performed using either nylon sutures or Prineo®. All the procedures were performed between 2012 and 2014. Results: Six patients had contact dermatitis after Prineo® was used, with statistical significance (p = 0.042). Furthermore, Prineo® decreased the rate of scar enlargement (p < 0.05) . There was no statistical difference between the Prineo® and suture groups in terms of scar quality (p = 0.068); in both groups, the scar result was mostly excellent (87 %) to good (27%). Conclusion: Patients whose wounds were closed using Prineo® a system involving octyl-2-cyanoacrylate and an associated polyester mesh displayed lower rates of scar enlargement, which depended on whether the thickness of the dermis was satisfactory. However, the same patients had higher rates of contact dermatitis than those whose wounds were closed using surgical sutures. Both groups showed excellent to good scar quality, with no significant difference in terms of esthetic scar results.

Uso de adhesivos tisulares para el cierre de heridas en la práctica médica / Use of tissue adhesives for the wound closure in medical practice

Introducción: los adhesivos tisulares generan una película impermeable que una vez aplicados sobre la herida quirúrgica mantienen los bordes juntos hasta que se produce la cicatrización, lo que ayuda a disminuir el riesgo de infección de las heridas tratadas. Su empleo en la medicina permite simplificar procedimientos quirúrgicos complejos y brinda mayor comodidad al paciente. Objetivo: identificar los ámbitos de la práctica médica donde el cierre quirúrgico de heridas con el uso de adhesivos tisulares ofrece mejores resultados. Métodos: estudio descriptivo con un diseño de análisis de decisión, se confeccionó un árbol de decisión que comparó dos posibles alternativas: uso de adhesivos tisulares en adultos y en pediatría. La información se obtuvo de la literatura mediante la revisión de bases de datos médicas en el periodo de enero/2002 a diciembre/2012. Se identificaron 25 estudios (15,4 por ciento) que fueron válidos para estimar las probabilidades de complicaciones y éxito en el cierre de heridas. Resultados: el uso de adhesivos titulares en adultos mostró los mejores resultados con una alta probabilidad de éxito (0,99) para el cierre de heridas en piel y mucosas y especialmente en la cirugía de cabeza y cuello. En pediatría la probabilidad de éxito fue de 0,96 y su mejor uso se decidió en la cirugía de tórax y abdomen. Conclusiones: el uso de adhesivos titulares en adultos y niños ofrece una alta perspectiva de éxito para el cierre de heridas en piel y mucosas, si bien su uso en adultos es su mejor opción(AU)

Introduction: tissue adhesives generate, based on its characteristics, a water-proof film that once spread over the surgical wound, can keep wound edges together until cicatrization, all of which helps to decrease the infection risk. The use of tissue adhesives in medicine allows making complex surgical procedures simpler in addition to making the patient feel more comfortable. Objective: to identify the areas of medical practice where the surgical wound closure with adhesives exhibits better results. Methods: descriptive study with analysis decision design; a decision tree was created to compare two possible alternatives: use of tissue adhesives in adults and in pediatrics. Information was taken from literature through revision of medical database in the period of January 2002 to December 2012. Twenty five studies (15.4 percent), which were valid for estimating the odds of complications and successes of each wound closure option. Results: the use of tissue adhesives in adults showed the best results with high probabilities of being successful (0.99) in closing skin and mucosa wounds, mainly in the head and the neck. The probabilities for success in pediatrics were 0.96 and it is better used in thorax and abdomen surgery. Conclusions: use of tissue adhesives in adults and children provide high success probabilities for the closure of wounds in the skin and in the mucosa, although their use in adult people is the best choice(AU)

The collagen, fibrinogen and thrombin biological adhesive is effective in treating experimental liver injuries / O adesivo biológico de colágeno, fibrinogênio e trombina é eficaz no tratamento de lesões hepáticas experimentais

ABSTRACT Objective: to evaluate the effectiveness of an collagen-based adhesive associated with fibrinogen and thrombin in experimental liver injuries in rats. Methods: we randomly divided 30 Wistar rats into three groups: A, B and C. All underwent a standard liver traumatic injury. In group A, the lesion was treated with the adhesive; in group B, with conventional, absorbable suture; group C received no treatment. We analyzed the time of hemostasis, mortality, occurrence of adhesions and any histological changes. Results: there was no statistical difference in relation to mortality (p=0.5820). The adhesive treated group showed the lowest hemostasis times (p=0.0573, odds ratio 13.5) and lower incidence of adhesions (p=0.0119). The histological alterations of the Groups A and B were similar, with foreign body granuloma formation separating the adhesive material and the hepatic stroma suture. Conclusion: the collagen adhesive associated with fibrinogen and thrombin was effective in treating experimental hepatic injury, providing a lower incidence of adhesions between the liver and surrounding structures.

RESUMO Objetivo: avaliar a eficácia de um adesivo a base de colágeno associado ao fibrinogênio e trombina, no trauma hepático experimental em ratos. Métodos: toram incluídos no estudo 30 ratos Wistar, igualmente divididos aleatoriamente em três grupos: A, B e C. Todos foram submetidos à lesão traumática hepática padronizada. No grupo A, a lesão foi tratada com o adesivo, no grupo B, com sutura convencional com fio absorvível, e no grupo C, não houve tratamento da lesão. Foram analisados o tempo de hemostasia, mortalidade, ocorrência de aderências e eventuais alterações histológicas. Resultados: os resultados mostraram que não houve diferença estatística em relação à mortalidade (p=0,5820). O grupo tratado com adesivo apresentou os menores tempos de hemostasia (p=0,0573 e odds ratio 13,5) e menor ocorrência de aderências (p=0,0119). Microscopicamente as alterações histológicas dos grupos A e B foram semelhantes, com a formação de granuloma de corpo estranho separando o material do adesivo e do fio de sutura do estroma hepático. Conclusão: o adesivo de colágeno associado ao fibrinogênio e trombina foi eficaz no tratamento do trauma hepático experimental, proporcionado menor ocorrência de aderências entre o fígado e as estruturas vizinhas.

Uso do n-butil cianoacrilato em cirurgias da parede abdominal. Revisão da literatura / Use of n-butyl cyanoacrylate in surgeries of the abdominal wall. Literature review

O uso de adesivos teciduais à base de cianoacrilato como alternativa às suturas mecânicas tem despertado grande interesse entre os cirurgiões, pela promoção de uma adesão de qualidade dos tecidos em tempo reduzido e, ainda, por suas propriedades hemostáticas e bacteriostáticas. Neste contexto, a presente revisão discute as propriedades dos diversos tipos de adesivos teciduais e suas indicações nas cirurgias da parede abdominal.

The use of cyanoacrylate-based tissue adhesives as an alternative to surgical stapling has arisen great interest among surgeons, for promoting quality tissue adhesion in reduced time, and also for its hemostatic and bacteriostatic properties. In this context, this review discusses the properties of various types of tissue adhesives, and their indications for surgery of the abdominal wall.

Effectiveness of cyanoacrylate adhesive in rabbit aortorrhaphy / Efetividade do adesivo de cianoacrilato para aortarrafia em coelhos

BACKGROUND: Even when properly performed, arterial sutures are not always absolutely hemostatic. Tissue sealants and adhesives have become available that can be used to complete sutures, preventing hemorrhage problems.OBJECTIVES: To evaluate the effectiveness of cyanoacrylate adhesive for sealing aortotomies in rabbits in a coagulopathic state, by analyzing survival of the animals and the time taken to achieve hemostasis.METHODS: Ten-mm long aortotomies were performed on the infrarenal aortas of 12 animals. In four animals, aortorrhaphy was conducted using four interrupted polypropylene sutures and in the remaining animals aortorrhaphy was performed using four or fewer polypropylene stitches, followed by application of a cyanoacrylate adhesive.RESULTS: The four animals sutured without adhesive died within the postoperative period due to severe hemorrhage (3 animals) or intestinal ischemia. The eight animals to which the adhesive was applied exhibited no transoperative bleeding, but one animal died during the postoperative period. Using cyanoacrylate permitted more rapid procedures (p<0.004) and no local reactions were observed in macroscopic examination of tissues.CONCLUSIONS: The cyanoacrylate adhesive demonstrated effectiveness for sealing aortotomies, considering the survival outcomes, duration of procedures and absence of local reactions on macroscopic examination.

CONTEXTO: Ainda quando feitas adequadamente, suturas arteriais não são absolutamente hemostáticas. Vedantes e adesivos teciduais estão disponíveis e podem ser usados para completar as suturas, prevenindo problemas hemorrágicos.OBJETIVOS: Avaliar a efetividade do adesivo de cianoacrilato em vedar aortotomias de coelhos, considerando a sobrevida dos animais e o tempo para hemostasia.MÉTODOS: Em todos os doze animais, aortotomias de 10 mm de extensão foram feitas na aorta abdominal infrarrenal. Em quatro animais a aortorrafia foi feita com quatro pontos separados de polipropileno, e no outro grupo, a aortorrafia foi feita com quatro ou menos pontos separados e, depois, o adesivo de cianoacrilato foi aplicado.RESULTADOS: Os quatro animais que receberam somente a sutura morreram no primeiro dia de pós-operatório devido à hemorragia intensa (três animais) e por isquemia intestinal. Nos oito animais nos quais o adesivo foi aplicado não houve sangramento transoperatório, mas um animal morreu no período pós-operatório. A utilização do cianoacrilato tornou o procedimento mais rápido (p < 0,004). Não foram observadas reações locais sob o ponto de vista macroscópico.CONCLUSÕES: O adesivo de cianoacrilato mostrou efetividade em vedar aortotomias, considerando o desfecho sobrevida e tempo para obter hemostasia e o fato de não ocorrerem reações locais sob o ponto de vista macroscópico.

Tissue adhesive in free gingival graft / Adesivo tecidual no enxerto gengival livre

The aim of the present study was to review the literature regarding the utilization of 2-octyl cyanoacrylate's (Dermabond®, Ethicon US, USA) as a tissue adhesive in dentistry; also, to report its use in the stabilization and fixation of a free gingival graft, indicated to increase the width of the keratinized attached mucosa at the lower incisive region. Literature analysis revealed numerous indications for this tissue adhesive in the medical field related to maxillofacial injuries. In dentistry, clinical reports, as well as controlled clinical studies conducted in humans and in animal models, using histological analysis described positive results for the use of different cyanoacrylate-based tissue adhesives. These studies reported that the use of tissue adhesives reduced the surgical procedure time period, eliminated postoperative visits as well as the discomfort of suture removal and, in addition, did not interfere with the clinical repair process. Favorable results, like the ones described in the literature, were obtained in the present case report using Dermabond®.

O objetivo do presente estudo foi revisar a literatura pertinente sobre a utilização do 2-octil cianoacrilato (Dermabond®, Ethicon US, USA) como adesivo tecidual na Odontologia, assim como relatar seu uso na estabilização e fixação de um enxerto gengival livre indicado para aumento da mucosa ceratinizada inserida na região dos incisivos inferiores. A análise da literatura revelou ampla aplicabilidade deste adesivo tecidual na área médica relacionada aos ferimentos maxilofaciais. Na Odontologia existem relatos clínicos e estudos controlados em humanos e em modelos animais, descrevendo resultados positivos, inclusive por meio da análise histológica, sobre a utilização de diferentes adesivos teciduais, à base do cianocrilato. Estes estudos relataram que o uso dos adesivos teciduais, reduz o tempo operatório, elimina visitas pós-operatórias, não apresenta o desconforto da remoção de suturas, além de não interferir no processo de reparo clínico. Resultados favoráveis como os descritos na literatura, foram obtidos no presente relato de caso com a utilização do Dermabond®.