Reparacion endoscopica preaponeurotica (repa) una alternativa en la diastasis de rectos abdominales / Pre-aponeurotic endoscopic repair (r.e.p.a.): an alternative in diastasis recti abdominis

La diástasis de recto abdominales (DR) es la disyunción de sus bordes internos. Nuestro objetivo es exponer una serie de casos intervenidos quirúrgicamente con la técnica R.E.P.A. en el tratamiento de la diástasis de rectos asociado a defectos de la línea media. Es un estudio prospectivo observacional intervencionista, de abril 2018 a diciembre 2019, se operaron 15 paciente 73% mujeres y 27% varones, edad media 48 años, el diagnóstico de ingreso frecuente fue DR primaria 9 pacientes (60%), la medición ecográfica de DR fue <59mm con 10 casos (66,6%). El tiempo quirúrgico promedio fue 130 min, 1 conversión a cirugía abierta, la estancia hospitalaria fue 1,5 días y los eventos locales postoperatorios fueron 2 casos de seroma (50%). En conclusión, R.E.P.A. es factible y segura de realizar, no requiere muchos insumos, permite instalar material protésico, cumple los beneficios de la cirugía videoendoscopica, es una técnica endoscópica básica y la curva de aprendizaje no es dificultosa.

Diastasis rectus abdominis (RD) is the disjunction of inner edges. Our objective is to present a series of cases surgically operated employing R.E.P.A. technique in the treatment of rectal diastasis associated to midline defects. A prospective observational interventional study, from April 2018 to December 2019 was conducted. 15 patients (73% women and 27% men) with a mean age of 48 years were operated, the diagnosis of frequent admission was primary RD (n=9, 60%), the ultrasound measurement of RD was <59mm (10 cases, 66.6%). The mean surgical time was 130 min, 1 conversion to open surgery, hospital staying was 1.5 days and local postoperative events were 2 cases of seroma (50%). In conclusion, R.E.P.A. is feasible and safe to perform, does not require many supplies, allows to install prosthetic material, meets the benefits of video endoscopic surgery, it is a basic endoscopic technique and the learning curve is not difficult.

Incisional hernia prevention using a cyanoacrilate-fixed retrofascial mesh. / Prevención de la hernia incisional mediante malla retrofascial fijada con cianoacrilato.

INTRODUCTION: The rate of incisional hernia in high-risk patients (obesity, cancer, etc.) is high, even in laparoscopic surgery. The aim of this study is to evaluate the safety of the use of cyanoacrylate fixed prophylactic meshes in the assistance incision in overweight or obese patients undergoing laparoscopic colorectal surgery. METHODS: A prospective, non-randomized cohort study of patients undergoing elective laparoscopic resection for colorectal cancer between January 2013 and March 2016 was performed. Those with a body mass index greater than 25kg / m2 were evaluated to implant a prophylactic meshes fixed with cyanoacrylate (Histoacryl®) as reinforcement of the assistance incision. RESULTS: 52 patients were analyzed (mean body mass index: 28.4±2kg / m 2). Prophylactic meshes was implanted in 15 patients. The time to put the mesh in place was always less than 5minutes. There was no significant difference in wound infection rate (12% vs. 10%). No mesh had to be explanted. Although the mean follow-up was shorter (14.1±4 vs. 22.3±9 months), there were no incisional hernia in the mesh group. On the other hand, in the non-mesh group, 1 acute evisceration (2.7%) and 4 incisional hernia of the assistance incision were observed (10.8%). There were no significant differences between groups regarding trocar incisional hernia (6.6 vs. 5.4%). CONCLUSIONS: The implantation of a reinforcement prophylactic mesh in overweight or obese patients undergoing laparoscopic colorectal surgery is safe and seems to reduce the short-term rate of incisional hernia. Fixation with cyanoacrylate is a rapid method that facilitates the procedure without additional complications.

Reconstrucción de aparato extensor en sarcoma fibromixoide de bajo grado en rodilla: reporte de caso

Introducción: El sarcoma fibromixoide de bajo grado es una tumoración maligna con alto riesgo de desarrollar recurrencia y metástasis, siendo la resección quirúrgica con márgenes amplios el tratamiento principal, la preservación de la extremidad y su reconstrucción es de alta demanda para los cirujanos. Reporte de caso: Presentamos el caso de una mujer de 67 años con recurrencia de tumoración en rodilla desde hace 12 meses, operado dos años antes. Se realizo resección oncológica de tumoración con reconstrucción de articulación de rodilla con prótesis Endo Model y reconstrucción de aparato extensor con injerto sintético de malla de polipropileno más autoinjerto de semitendinoso y gracilis. La patela se reconstruyó con autoinjerto de cóndilo femoral posterior. A los 16 meses de seguimiento la paciente se encuentra libre de enfermedad, con puntaje de 27 en la escala para miembro inferior de la MSTS (Musculoskeletal Tumour Society). Conclusión: La combinación de injerto sintético con autoinjerto de isquiotibiales puede disminuir la tasa de falla de la reconstrucción del aparato extensor por resecciones oncológicas.

Introduction: Low-grade fibromyxoid sarcoma is a malignant tumor with a high risk of developing recurrence and metastasis, surgical resection with wide margins is the main treatment, limb preservation and reconstruction is in high demand for surgeons. Case of report: We present the case of a 67-year-old woman with a recurrence of a knee tumor that had been operated on two year earlier. Oncological resection of the tumor was performed with reconstruction of the knee joint with an Endo Model prosthesis and extensor mechanism reconstruction with a synthetic polypropylene mesh graft plus a semitendinosus and gracilis autograft. The patella was reconstructed with posterior femoral condyle autograft. At 16 months of patient follow-up, she is free of disease, with a score of 27 on the lower limb scale of the MSTS (Musculoskeletal Tumor Society). Conclusion: The combination of synthetic graft with hamstring autograft can reduce the failure rate of extensor mechanism reconstruction due to oncological resections.

Comparative analysis of tissular response after abdominal wall repair using polypropylene mesh and bovine pericardium mesh / Análise comparativa da resposta tecidual após reparo da parede abdominal utilizando tela de polipropileno e de pericárdio bovino

ABSTRACT Background: The use of polypropylene meshes for surgical repair of the abdominal wall contributes to a reduction of the of recurrence rates of hernias or defects. However, its intra-abdominal use comes along with the formation of adhesions and several complications. The study and the search for alternative materials, including bovine pericardium, have been regarded as an option for the correction and treatment of resulting hernias with better adaptations and effectiveness. Aim: Evaluating the inflammatory process of the bovine pericardium in comparison with the inflammatory process of synthetic polypropylene mesh. Method: Bovine pericardium mesh and polypropylene mesh were placed, both on the same animal. The first group had the mesh removed for analysis on day 20, and the second group on day 40. The variables congestion, granulation, giant cells, necrosis, acute inflammation, chronic inflammation and collagen were analyzed. Results: All variables were found in greater numbers as a response to the polypropylene mesh, except for the collagen, which, on day 40, was greater in response to the bovine pericardium mesh. Conclusion: The data in this study suggest that there is less inflammatory reaction in response to bovine pericardium mesh when compared to polypropylene mesh.

RESUMO Racional: O uso de telas de polipropileno para a correção cirúrgica da parede abdominal contribui para redução dos índices de recidiva das hérnias ou defeitos. No entanto, o seu uso intra-abdominal cursa com a formação de aderências e diversas complicações. O estudo e a busca por materiais alternativos, como pericárdio bovino, têm se mostrado uma opção na correção e tratamento de hérnias que resultem com melhores adaptações e efetividades. Objetivo: Avaliar o processo inflamatório do pericárdio bovino em comparação ao processo inflamatório da tela sintética de polipropileno. Método: Foi realizada a colocação de tela de pericárdio bovino e polipropileno, ambas no mesmo animal. O primeiro grupo as teve retiradas para análise no dia 20, e o segundo grupo no dia 40. Foram analisadas as variáveis congestão, granulação, células gigantes, necrose, inflamação aguda, inflamação crônica e colágeno. Resultados: Todas as variáveis foram encontradas em maior número como resposta a tela de polipropileno, exceto a variável colágeno, que no dia 40 apresentou-se em maior quantidade em resposta à tela de pericárdio bovino. Conclusão: Há menor reação inflamatória em resposta a tela de pericárdio bovino, quando comparada com a de polipropileno.

Between prolene®, ultrapro® and bard soft® meshes which presents the best performance in the repair of the abdominal wall? / Dentre as telas prolene®, ultrapro® ebard soft® qual apresenta melhor desempenho no reparo da parede abdominal?

ABSTRACT Background: In the definition of the mesh to be used to correct hernias, porosity, amount of absorbable material and polypropylene should be considered in the different stages of healing process. Aim: To evaluate the inflammatory reaction in the use of macro and microporous meshes of high and low weight in the repair of defects in the abdominal wall of rats. Methods: Ninety Wistar rats (Rattus norvegicus albinus) were used. The animals were submitted to similar surgical procedures, with lesion of the ventral abdominal wall, maintaining the integrity of the parietal peritoneum and correction using the studied meshes (Prolene®, Ultrapro® and Bard Soft®). Euthanasia was performed at 30, 60 and 120 days after surgery. The abdominal wall segments were submitted to histological analysis using H&E, Masson's trichrome, immunohistochemistry, picrosirius red and tensiometric evaluation. Results: On the 120th day, the tensiometric analysis was superior with Ultrapro® macroporous mesh. The inflammatory process score showed a significant prevalence of subacute process at the beginning and at the end of the study. Microporous meshes showed block encapsulation and in macroporous predominance of filamentous encapsulation. Conclusion: The Ultrapro® mesh showed better performance than the others in healing process of the abdominal wall.

RESUMO Racional: Na definição da tela a ser utilizada na correção das hérnias deve-se considerar a porosidade, quantidade de material absorvível e polipropileno ou inabsorvível nas diversas fases da cicatrização. Objetivo: Avaliar a reação inflamatória das telas macro e microporosas de alta e baixa gramatura no reparo de defeito da parede abdominal de ratos. Método: Foram utilizados 90 ratos da raça Wistar (Rattus norvegicus albinus). Os animais foram submetidos a procedimentos cirúrgicos semelhantes, com lesão da parede abdominal ventral, mantendo a integridade do peritônio parietal e correção utilizando as telas Prolene®, Ultrapro® e Bard Soft®. Realizou-se a eutanásia aos 30, 60 e 120 dias de pós-operatório. Os segmentos da parede abdominal foram submetidos à análise histológica com H&E, tricômio de Masson, imunoistoquímica, picrosirius red e análise tensiométrica. Resultado: No 120º dia a análise tensiométrica mostrou superioridade da tela macroporosa Ultrapro®. O escore do processo inflamatório demonstrou prevalência significativa de processo subagudo no início e no final do estudo. As telas microporosas mostraram encapsulamento em bloco e as macroporosas encapsulamento predominantemente filamentar. Conclusão: A tela Ultrapro® mostrou melhor desempenho em relação às demais na cicatrização da parede abdominal.

Association of polypropylene scaffolds and mesenchymal stem cells for use in tissue engineering / Associação de arcabouço de polipropileno e células tronco mesenquimais para uso em engenharia de tecido

Tissue engineering replaces injured tissues by manipulating cells, making scaffolds, and using molecules that stimulate the tissue. Mesenchymal stem cells (MSCs) are good candidates for tissue engineering, as this is one of the cell types which are recruited to repair injured tissues. Scaffolds are structural devices that allow cell fixation and migration, with polypropylene meshes being an example. This study aims to evaluate the culture of adipose tissue-derived mesenchymal stem cells (ADSCs), isolated from C57Bl/6 GFP + mice, in two types of polypropylene meshes (macroporous and microporous) in conventional culture plates and plates coated with methacrylate, over a period of fifteen days. The objective was to obtain the best interaction protocol between the mesh and the cells. The choice of the best method was based on adherence, maintenance of adherence and viability during culture. The amount of ADSCs adhering was checked daily by counting in a Neubauer Chamber and by using a growth curve performed with the MTT assay. The ADSCs adhering to the meshes were visualized with DAPI, panotic, hematoxylin and eosin, immunohistochemistry (integrin), and immunofluorescence (actin). ADSCs adhere to all forms of culture and to the two types of polypropylene mesh. ADSCs adhered more to the microporous mesh, within the seven day period of culture and in the plates without methacrylate. Thus, polypropylene meshes offer a good scaffold for ADSCs to adhere to.

A engenharia de tecidos substitui tecidos danificados com a manipulação de células, confecção de arcabouços e a utilização de moléculas que estimulem o tecido. As células-tronco mesenquimais (MSCs) são boas candidatas para engenharia de tecido, pois são um dos tipos celulares recrutadas para a reparação de tecidos lesionados. O arcabouço deve ser um dispositivo estrutural que forneça uma estrutura para o crescimento e a diferenciação celular no sítio, sendo a tela de polipropileno um exemplo. O objetivo deste estudo foi avaliar o cultivo de células-tronco mesenquimais de tecido de adiposo (ADSCs), isoladas de camundongos C57Bl/6 GFP+, em dois tipos de telas de polipropileno (macroporosa e microporosa) em placas de cultura convencionais e revestidas com metacrilato, durante quinze dias, para obter o melhor protocolo de interação entre a tela e as células. A escolha do melhor método foi baseada na adesão, manutenção da adesão e viabilidade durante cultivo. A quantidade de ADSCs aderidas foi verificada diariamente em contagem em Câmara de Neubauer e através de uma curva de crescimento realizada através de ensaio de MTT. As ADSCs aderidas nas telas foram visualizadas com a marcação de DAPI, panótico, hematoxilina e eosina, imumo-histoquímica (integrina) e imunofluorescência (actina). Nas duas formas de cultivo e nos dois tipos de telas de polipropileno houve aderência das ADSCs. Houve maior aderência na tela microporosa, no período de sete dias de cultivo e em placas sem metacrilato. Conclui-se que a tela de polipropileno oferece um bom arcabouço para as ADSCs se aderirem.

Associação de arcabouço de polipropileno e células tronco mesenqimais para uso em engenharia de tecido / Association of polypropylene scaffolds and mesenchymal stem cells for use in tissue engineering

A engenharia de tecidos tem como objetivo substituir tecidos danificados, manipulando células, confecção de arcabouços e a utilização de moléculas que estimulem o tecido. A proposta deste estudo foi avaliar duas técnicas de cultivo de células-tronco mesenquimais (MSC) em diferentes placas de cultura, utilizando dois tipos de telas de polipropileno (macroporoso e microporoso), para obter as melhores condições de interação entre a tela e as células, e definir uma proposta de protético para engenharia de tecidos. As telas de polipropileno foram cultivadas com células-tronco mesenquimais de tecido adiposo (ADSCs) isoladas de camundongos C57B1/6 GFP+ durante quinze dias em placas revestidas com metacrilato ou não revestidas com metacrilato. A quantidade de ADSCs aderidas foram verificadas diariamente em Câmara de Neubauer e através de uma curva de crescimento realizada pelo ensaio MTT. As ADSCs aderidas às malhas foram visualizadas com marcação de DAPI, panóticas, hematoxilina e eosina imuno-histoquímica e imunofluorescência. O melhor protocolo foi na tela microporosa, no o período de sete dias de cultivo e em placas sem metacrilato. Conclui-se que a tela de polipropileno fornece um bom suporte para as ADSCs se aderirem podendo ser utilizada na engenharia de tecidos.

Tissue engineering replaces injured tissues by manipulating cells, making scaffolds, and using molecules that stimulate the tissue. Mesenchymal stem cells (MSCs) are good candidates for tissue engineering, as this is one of the cell types which are recruited to repair injured tissues. Scaffolds are structural devices that allow cell fixation and migration, with polypropylene meshes being an example. This study aims to evaluate the culture of adipose tissue-derived mesenchymal stem cells (ADSCs), isolated from C57Bl/6 GFP + mice, in two types of polypropylene meshes (macroporous and microporous) in conventional culture plates and plates coated with methacrylate, over a period of fifteen days. The objective was to obtain the best interaction protocol between the mesh and the cells. The choice of the best method was based on adherence, maintenance of adherence and viability during culture. The amount of ADSCs adhering was checked daily by counting in a Neubauer Chamber and by using a growth curve performed with the MTT assay. The ADSCs adhering to the meshes were visualized with DAPI, panotic, hematoxylin and eosin, immunohistochemistry (integrin), and immunofluorescence (actin). ADSCs adhere to all forms of culture and to the two types of polypropylene mesh. ADSCs adhered more to the microporous mesh, within the seven day period of culture and in the plates without methacrylate. Thus, polypropylene meshes offer a good scaffold for ADSCs to adhere to.

Cierre de un gran defecto de la pared torácica y abdominal usando omento y malla de polipropileno en un canino / Closure of a large thoracic and abdominal wall defect using omentum and a polypropylene mesh in a dog

RESUMEN Este reporte de caso describe la resección quirúrgica exitosa de un condroma de gran tamaño localizado en las dos últimas costillas y pared abdominal craneal izquierda de un canino, usando una malla de polipropileno, omento y avance del diafragma. Se discute la técnica quirúrgica y los materiales utilizados en el procedimiento, así como la evolución posquirúrgica del paciente.

ABSTRACT This case report describes the successful surgical resection of a large chondroma located in the last two ribs and left cranial abdominal wall of a dog, using a polypropylene mesh, omentum and diaphragm advance. The surgical technique and the materials used in the procedure, as well as the postoperative outcome, are discussed.

Tissue healing with polypropylene membrane used as conventional guided bone regeneration and exposed to the oral cavity for post-dental extraction: a case report

Introduction: The maintenance of the alveolar ridge after tooth loss is very important for the installation of an osseointegrated dental implant and for the aesthetic result of the rehabilitation prosthesis. Regenerative surgery is often needed to recover the volume lost when a tooth is extracted. The blood clot that forms is very important in regenerative surgery because it allows the mesenchymal cells to differentiate into osteoprogenitor cells, which leads to bone regeneration. Objective: This case report compares the bone repair after dental extraction in the same patient via three different protocols and the healing in preparation for posterior implant placement. Case Report: A patient 50 year-old female required dental extraction of elements 15, 24 and 26 and prosthetic rehabilitation. The first technique used was tooth extraction and suture only, the second technique used exposedBoneHeal® polypropylene membrane after extraction, and the third technique usedBoneHeal membrane subperiosteally. After a few days, the subperiosteal membrane became exposed and it was not possible to keep it in position. However, the two regions in which the membrane was used obtained a greater increase in soft tissue. Conclusion: In our study case, the polypropylene membrane seemed to repair tissue.

Introdução: A manutenção do rebordo alveolar após a extração dentária é muitoimportante para a instalação de um implante osseointegrável e para o resultado estético da reabilitação protética. A cirurgia regenerativa é frequentemente necessária para recuperar o volume perdido quando um dente é extraído. O coágulo sanguíneo que se forma é muito importante na cirurgia regenerativa porque permite que as células mesenquimais se diferenciem em células osteoprogenitoras, o que leva à regeneração óssea. Objetivo: Esse relato de caso compara o reparo ósseo após a extração dentária em um mesmo paciente através de três protocolos diferentes em preparação para posterior instalação de implante. Relato de Caso: Paciente de 50 anos, sexo feminino, necessitou de extração dentária dos elementos 14, 24 e 26 com posterior reabilitação. A primeira técnica utilizada foi a remoção dentária com sutura somente, a segunda utilizou a membrana de polipropileno BoneHeal de forma exposta após a extração, e a terceira técnica utilizou a membrana BoneHeal de subperiostealmente. Após alguns dias, a membrana subperiosteal expôs e não foi possível continuar em posição. No entanto, as duas regiões que a membrana foi utilizada, obtiveram um maior aumento no tecido mole. Conclusão: Em nosso estudo de caso, a membrana de polipropileno pareceu reparar tecido.

Tensiometric analysis of meshes used in abdominal ventral wall defects in rats / Estudo tensiométrico de telas utilizadas na correção de defeito na parede abdominal ventral de ratos

ABSTRACT Background: Among the various strategies to avoid exaggerated foreign body reaction in the treatment of hernias is the limitation of the amount of polypropylene or the use of absorbable material. Aim: To evaluate the healing of defects in the abdominal wall of rats, comparing microporous polypropylene, macroporous polypropylene and polypropylene/polyglecaprone at the 30º, 60º and 120º postoperative day. Methods: Wistar rats were submitted to defect production in the ventral abdominal wall, with integrity of the parietal peritoneum. Prolene®, Ultrapro® and Bard Soft® meshes were used in the correction of the defect. Nine subgroups of 10 animals were submitted to euthanasia at 30th, 60th and 120th postoperative day. Fragments of the abdominal wall of the animals were submitted to tensiometric analysis. Results: The tensiometry at the 30th postoperative day showed greater resistance of the tissues with Bard Soft® (macroporous mesh) in relation to the tissues with Prolene® (microporous mesh). On the 60th postoperative day Bard Soft® maintained the superior resistance to the tissues comparing to Prolene Mesh®. On the 120th postoperative day the tissues repaired with Ultrapro® (macroporous mesh) proved to be more resistant than the ones by Prolene® (microporous mesh) and Bard Soft® (macroporous mesh). Conclusion: The tissues repaired with macroporous meshes showed greater resistance than with microporous meshes at all stages, and at 120 days postoperative Ultrapro® performed better than the others.

RESUMO Racional: Dentre as várias estratégias para evitar exagerada reação de corpo estranho no tratamento das hérnias está a limitação da quantidade de polipropileno na tela ou utilização de material absorvível. Objetivo: Avaliar a cicatrização de defeito em parede abdominal de ratos, comparando-se as telas de polipropileno microporosa, polipropileno macroporosa e polipropileno/poliglecaprone. Métodos: Em 90 ratos Wistar foi produzido defeito na parede abdominal ventral, com integridade do peritônio parietal. Na correção foram utilizadas as telas Prolene®, Ultrapro® e Bard Soft®. Nove subgrupos de 10 animais foram submetidos à eutanásia no 30º, 60º e 120º dia do pós-operatório. Fragmentos da parede abdominal dos animais foram submetidos à análise tensiométrica. Resultados: A tensiometria aos 30dias mostrou maior resistência do tecido com tela Bard Soft® em relação à de Prolene®; no 60º dia a Bard Soft® manteve a resistência superior ao Prolene®; no 120º dia a reparação com tela macroporosa Ultrapro® mostrou-se mais resistentes que a de Prolene® e Bard Soft®. Conclusão: Os tecidos reparados com telas macroporosas demonstraram maior resistência do que as microporosas em todas as fases, sendo que aos 120 dias de pós-operatório a Ultrapro® teve melhor desempenho que as demais.

Óleo essencial de Rosmarinus officinalis L. como sanitizante natural para controle de bactérias sésseis em superfície utilizada para corte de alimentos / Essential oil of Rosmarinus officinalis L. as natural sanitizer for controlling the sessile bacteria and as antimicrobial on the food-cutting surfaces

Objetivou-se neste estudo determinar as concentrações mínimas inibitórias (CMI) e as concentrações bactericidas mínimas (CBM) pela técnica de macrodiluição em caldo do óleo essencial (OE) de Rosmarinus officinalis L. sobre as cepas padrões de Staphylococcus aureus, Escherichia coli, SalmonellaCholeraesuis e Pseudomonas aeruginosa. Avaliou-se também a ação antibacteriana de soluções do OE sobre estes micro-organismos aderidos, por 12 h a 37 °C sob agitação, em superfície de polipropileno utilizada para corte de alimentos. As soluções sanitizantes de OE foram formuladas com base nos valores encontrados nas CBM, para cada estirpe bacteriana separadamente. A ação sanitizante da solução contra as células aderidas à superfície foi avaliada após 20 e 40 minutos de contato. Para E. coli, S. Choleraesuise P. aeruginosa, o tempo de 20 minutos de contato foi suficiente para a remoção total das células aderidas, e para S. aureus houve redução significativa para ambos os períodos avaliados. O OE de alecrim pode ser considerado como alternativa natural para realizar o controle de bactérias patogênicas e contaminantes na indústria de alimentos...

Papel del alopurinol en las adherencias peritoneales al colocar una malla de polipropileno: Estudio experimental en ratas / Role of alopurinol in peritoneal adherences when placing a polypropylene mesh: Experimental study in rats

Objetivo: Determinar el efecto del alopurinol en las adherencias peritoneales al colocar una malla de polipropileno. Sede: Cirugía Experimental de la Universidad de Guanajuato. Diseño: Estudio experimental, prospectivo, comparativo, controlado, doble ciego, con asignación al azar. Análisis estadístico: χ². Material y métodos: Se compararon dos grupos de 30 ratas Wistar cada uno, a quienes se les colocó una malla de polipropileno: el grupo A, sin tratamiento versus el grupo B, alopurinol a 25 mg/kg/día por sonda orogástrica. Resultados: Este estudio determinó que la prevalencia de adherencias protésicas-peritoneales viscerales en ratas Wistar, al colocar una malla de polipropileno, es del 100% sin tratamiento y con alopurinol. Conclusiones: No obtuvimos diferencia estadística del efecto beneficioso del alopurinol en la prevención de adherencias, esto puede hablarnos de que la acción del alopurinol sólo se ejerce en la prevención de adherencias cuando su etiología es la isquemia y no debido a la presencia de reacción a cuerpo extraño de tipo granulomatoso.

Objective: To determine the effect of allopurinol on peritoneal adhesions when placing a polypropylene mesh. Setting: Experimental Surgery Unit of the University of Guanajuato, México. Design: Experimental, prospective, comparative, controlled, double-blinded, randomized assignment study. Statistical analysis: χ². Material and Methods: We compared two groups of 30 Wistar rats each, in which we placed a polypropylene mesh: Group A, without treatment, versus group B with allopurinol at mg/kg per day administered through an orogastric catheter. Results: This study determined that the prevalence of visceral peritoneal-prosthetic adhesions in Wistar rats when placing a polypropylene mesh is of 100% with and without allopurinol treatment. Conclusions: We did not obtain statistical differences of the beneficial effect of allopurinol in preventing adhesions, this can indicate that allopurinol's effect is only exerted in preventing adhesions when they are due to ischemia but not when they are caused by a granulomatous-type foreign body reaction.

Tratamiento quirúrgico ambulatorio de pacientes con hernia inguinal / Outpatient surgical treatment in patients with inguinal hernia

Se efectuó un estudio descriptivo y prospectivo de 556 pacientes con hernia inguinal, expuestos a tratamiento quirúrgico ambulatorio en el Hospital Provincial Docente Clinicoquirúrgico "Saturnino Lora" de Santiago de Cuba, desde enero de 2010 hasta diciembre de 2012, con vistas a identificar los resultados, mediante técnicas de reparación herniaria (faciales y aponeuróticas) y el uso de bioprótesis. En la serie predominaron los hombres de 60 años y más con hernia inguinal indirecta, así como la anestesia local infiltrativa. Las técnicas quirúrgicas más empleadas resultaron ser las fasciales, realizadas sin tensión, en forma de herniorrafia o hernioplastia, con mallas de polipropileno y muy pocas recidivas.

A descriptive and prospective study was carried out in 556 patients with inguinal hernia, who underwent outpatient surgical treatment in "Saturnino Lora" Provincial Teaching Hospital of Santiago de Cuba, from January 2010 to December 2012, in order to identify the results by means of hernial repair techniques (facial and aponeurotic) and the use of bioprosthesis. Men of 60 years and over with indirect inguinal hernia and infiltrating local anesthesia predominated in the case material. The most used surgical techniques were the fascial ones, without tension, as herniorrhaphy or hernioplasty, with polypropylene mesh and few relapses.

Diez años de experiencia empleando la técnica con plug de Lichtenstein en la hernia femoral / Femoral Hernia. Ten years of experience in using the Lichtenstein Plug Technique

Introducción: se han desarrollado diversas técnicas para la reparación de la hernia femoral. La técnica con el Plug de Lichtenstein desde el año 1989 ha permitido obtener un menor índice de complicaciones y recidivas, así como una recuperación temprana de las actividades habituales del paciente. Su aplicación, ampliamente difundida en la cirugía electiva, también puede realizarse en la cirugía de urgencia. El objetivo de este trabajo es valorar la experiencia de nuestro grupo básico de trabajo en el tratamiento quirúrgico de la hernia femoral mediante la aplicación de esta técnica. Métodos: se realizó un estudio observacional descriptivo con carácter retrospectivo en nuestro grupo básico de trabajo, del servicio de cirugía del Hospital General Docente Enrique Cabrera entre los años 2001 al 2010, a un conjunto de pacientes a los cuales se les aplicó la técnica del Plug de Lichtenstein para la reparación de la hernia femoral. Se estudiaron las variantes anatómicas de las hernias así como las complicaciones posoperatorias y la evolución clínica. Resultados: la edad media de los pacientes fue de 58,7 años (19-92 años) y el sexo femenino fue el de mayor incidencia (78 por ciento), además la localización más frecuente, la derecha (67,5 por ciento). La prótesis empleada en la hernioplastia fue la de polipropileno. Se aplicó la anestesia local a 29 pacientes (63 por ciento). El tiempo quirúrgico medio fue de 25 minutos (15-65 minutos). La deambulación fue precoz y la estancia media hospitalaria fue menos de 24 horas, en la mayoría de los pacientes. Solo se constató una infección de la herida y una recidiva herniaria en un paciente. Conclusiones: la técnica del Plug de Lichtenstein debe considerarse entre las de elección en el tratamiento de la hernia femoral(AU)

Introduction: many technical procedures have been developed to repair femoral hernia. Since 1989, the Lichtenstein Plug technique has allowed lower rates of post operative complications and recurrence as well an earlier recovery of the daily life activities of the patients. This technique, widely known in elective surgery, can also be performed in the emergency surgery. Objective: to assess the experience of our basic working team in the surgical treatment of the femoral hernia through this technique. Methods: a retrospective, descriptive and observational study was conducted by our basic working team from the surgery service at Dr. Enrique Cabrera General Teaching Hospital from 2001 to 2010, which covered the patients who underwent surgical repair of femoral hernia through the Lichtenstein Plug technique. The anatomical variants of the hernias as well as the postoperative complications and the clinical progress were studied. Results: the mean age of the patients were 58.7 years old, (19-92 years), with prevalence of females (78 percent). The most frequent location of hernias was on the right (67.5 percent). Polypropylene reticular mesh was the most commonly used. Local anaesthesia was applied in 29 patients (63 percent), and the mean surgical time was 25 minutes (15-65 minutes). The average length of stay at hospital was less than 24 hours. Just one patient developed wound sepsis and herniary recurrence. Conclusions: the Lichtenstein Plug procedure should be regarded as a choice in treating femoral hernia(AU)

Hernioplastia de Jean Rives en pacientes con hernia inguinofemoral / Jean Rives´ hernioplasty in patients with inguinofemoral hernia

Se efectuó un estudio descriptivo, longitudinal y observacional sobre los primeros 120 pacientes operados de hernia inguinal con la técnica de hernioplastia de Jean Rives en el Hospital General Docente Dr Juan Bruno Zayas Alfonso de Santiago de Cuba, desde enero de 2001 hasta igual mes de 2009. En la serie, 56,6 por ciento de sus integrantes eran hombres, con una edad media de 64,4 años; en tanto 50,8 por ciento del total presentaban hernias primarias, con predominio del estadio III-B de la clasificación de Nyhus. Como profilaxis antibiótica predominó la cefazolina (67,5 por ciento); y como material protésico, el polipropilene (73,3 por ciento). Se utilizó anestesia local y sedación en 56,6 por ciento de la casuística. Las complicaciones posoperatorias representaron 2,4 por ciento y no se produjo recurrencia herniaria. El mencionado procedimiento es seguro y eficaz para la reparación quirúrgica de las hernias inguinocrurales.

A descriptive, longitudinal, and observational study on the first 120 patients surgically treated due to inguinal hernia using Jean Rives´hernioplasty technique at Dr Juan Bruno Zayas Alfonso Teaching General Hospital in Santiago de Cuba was carried out from January, 2001 to January, 2009. In the series, 56,6 percent of its members were male, having a mean age of 64,4 years; meanwhile 50,8 percent out of the total had primary hernias, with a prevalence of III-B stage according to Nyhus classification. Cefazolin (67,5 percent) and polypropilene (73,3 percent) prevailed as antibiotic prophylaxis and prosthesis material, respectively. Local anesthesia and sedation were used in 56,6 percent of the case material. Postoperative complications represented 2,4 percent and no hernia recurrence was observed. The aforementioned procedure is safe and effective to carry out the reparative surgery of the inguinocrural hernias.

Uso de malla de polipropileno en la hernioplastia por técnica de Lichtenstein / Use of polypropylene mesh in hernioplasty by Lichtenstein's technique

INTRODUCCIÓN. El objetivo del estudio fue evaluar el beneficio del uso de prótesis (malla de polipropileno) en la hernioplastia por la técnica de Lichtenstein, en el Hospital Clinicoquirúrgico Joaquín Albarrán. MÉTODOS. Se estudiaron de forma prospectiva (14 meses de por medio) 140 intervenciones quirúrgicas realizadas, mediante la técnica de Lichtenstein, a pacientes con hernia inguinal. Se excluyeron 110 por haber sido practicadas de forma ambulatoria. Se estudiaron los datos siguientes: tipo de hernia encontrada en el examen físico, edad, sexo, raza, ocupación laboral, fecha de la intervención, técnica utilizada y complicaciones durante el posoperatorio inmediato. Se consideró además la reproducción de la hernia luego de la operación, las complicaciones quirúrgicas y la tolerancia a la malla de polipropileno. RESULTADOS. Hubo un marcado predominio del sexo masculino y se constató una influencia directa entre las ocupaciones laborales que requieren esfuerzo físico elevado y la aparición de hernias inguinales (63,3 por ciento). Se registraron únicamente 3 complicaciones: un hematoma y dos seromas. No se documentaron recidivas. No se presentó ningún caso de infección, ni sistémica ni local. El uso de antibióticos profilácticos mostró una relación costo-beneficio adecuada. CONCLUSIONES. La edad avanzada, el sexo masculino y el esfuerzo físico mantenido tienen una relación directamente proporcional con la aparición de hernias inguinales. La factibilidad de la hernioplastia de Lichtenstein, la incidencia nula de recidivas herniarias y la escasa aparición de complicaciones, como el rechazo al material protésico, hablan de manera favorable sobre el uso de polipropileno en esta plastia. Recomendamos utilizar antibioticoterapia profiláctica perioperatoria para evitar la infección de la herida y por tanto asegurar el resultado de la intervención quirúrgica y su perduración(AU)

INTRODUCTION. The aim of present study was to assess the benefit using the prosthesis (polypropylene mesh) in the hernioplasty using the Lichtenstein's technique in the "Joaquín Albarrán" Clinical Surgical Hospital. METHODS. A prospective study (with an interval of 14 months) was conducted in 140 surgical interventions carried out using the Lichtenstein's technique in patients presenting with inguinal hernia. One hundred and ten patients were excluded due to interventions were of ambulatory method. The following data were studied: type of hernia found in the physical examination, age, sex, and race, type of job, intervention's date, and technique used as well as the complications during the immediate postoperative time. Also, the hernia's relapse after operation, surgical complications and tolerance to polypropylene mesh were taking into account. RESULTS. There was predominance of male sex confirming a direct influence among types of jobs requiring a strong physical effort and the appearance of inguinal hernias (63,3 percent). There were only three complications: a hematoma and two seromas. There were not relapses and any case of infection, both local and systemic. The use of prophylactic antibiotics showed an appropriate cost-benefit relationship. CONCLUSIONS. The old age, the male sex and a sustained physical effort have a directly proportional relation to appearance of inguinal hernias. The feasibility of Lichtenstein's hernioplasty, the null incidence of hernia relapses and no appearance of complications including the rejection to prosthetic material, favoured the use of polypropylene in this plasty. Authors recommended the use of perioperative prophylactic antibiotic therapy to avoid wound's infection and thus to secure the result of surgical intervention and its durability(AU)

Reparación de los prolapsos de los órganos pélvicos con bandas de polipropileno preobturador / Repair of pelvic organ prolapses using pre-obturator polypropylen bands

OBJETIVO: Presentar nuestra experiencia en la corrección de las disfunciones del suelo pélvico con bandas de polipropileno monofilamento libres de tensión transvaginal colocadas por delante del agujero obturador. MÉTODOS: Entre enero de 2004 y diciembre de 2009 se realizó corrección de disfunciones del suelo pelviano en un total de 63 pacientes atendidos en el servicio de Cirugía General del Hospital General Docente Dr. Carlos J. Finlay. En todos los casos las bandas de polipropileno fueron colocadas a través del agujero obturador (TVT-O), previa evaluación clínico funcional del piso pélvico. RESULTADOS: Las pacientes más afectadas se encontraban entre los 60 y 69 años. El cistocele resultó ser la disfunción del suelo pélvico más frecuente. Previamente 21 pacientes habían sido intervenidas. La complicación más frecuente resultó ser la sepsis urinaria en 4 pacientes. Se obtuvo curación de las disfunciones tratadas en el 100 por ciento de las pacientes. No se han presentado recurrencias hasta la fecha actual. CONCLUSIONES: La utilización de mallas protésicas, de polipropileno monofilamento en la corrección integral de las disfunciones del suelo pélvico, con bandas de polipropileno por técnica libre de tensión, resultó ser un procedimiento seguro y eficaz

OBJECTIVE: To present our experience in the pelvic floor dysfunctions with the use of transvaginal tension-free mono-filament polypropylene bands placed in front of the obturator hole. METHODS: Between January, 2004 and December, 2009 a correction of pelvic floor dysfunctions in a total of 63 patients seen in the General Surgery Service of the Dr. Carlos J. Finlay Teaching General Hospital. In all the cases the polypropylene bands were placed through the obturator hole (TVT-O) previous clinical functional assessment of the pelvic floor. RESULTS: The patients more involved were aged between 60 and 69. Previously, 21 patients were operated on. The more frequent complication was the urinary sepsis in 4 patients. All dysfunctions treated in the 100 percent of patients were cured. There were not recurrences up to nowadays. CONCLUSIONS: Use of monofilament prosthetic polypropylene networks in integral correction of pelvic floor dysfunctions with polypropylene bands by free-tension technique was a safe and effective procedure

Substituição dos ligamentos cruzados cranial e caudal em cães por duplo implante de polipropileno / Replacement of the cranial and caudal cruciate ligaments in dogs by double t polypropylene implant

O objetivo deste trabalho é salientar uma alternativa eficaz no tratamento da ruptura dos ligamentos cruzados cranial e caudal de cães, sem associação de imobilização externa. Foram atendidos seis animais portadores de ruptura de ambos os ligamentos cruzados. Optou-se pela correção cirúrgica intracapsular, utilizando-se dois implantes sintéticos de polipropileno, para a estabilização da articulação. Os pacientes retornaram ao apoio completo do membro em 11,8±3,5 dias e não mantiveram instabilidade articular, após 0, 30 e 90 dias de avaliação clínica pós-operatória. Aos 90 dias após a cirurgia, não se percebeu claudicação nos pacientes avaliados. Concluiu-se que a técnica utilizada promoveu total estabilidade articular na ausência dos ligamentos cruzados cranial e caudal.

The objective of this study is to point out an effective alternative in the treatment of the cranial and caudal cruciate ligaments rupture in dogs, with no association of external immobilization. Six dogs with rupture of both cruciate ligaments were included in the present study. Stifle joint was surgically stabilized by an intracapsular technique, using two polypropylene synthetic implants. The animals returned to full member support in 11.8±3.5 days and did not sustain any joint instability degree after 0, 30 and 90 days of clinical evaluation after surgery. At 90 days after surgery, it became apparent lameness in any of the six patients. It was concluded that the technique employed caused total joint stability in the absence of caudal and cranial cruciate ligaments.

Gross and histologic evaluation of abdominal adhesions associated with chromic catgut and polypropylene sutured enteropexies in dog / Evaluación macroscópica e histológica de las adherencias abdominales asociadas a enteropexias suturadas con catgut crómico y polipropileno en perros

The gross and histologic patterns of abdominal adhesions formed by the use of chromic catgut and polypropylene suture materials were evaluated in dogs. Gross and histologic examinations did not reveal significant difference (p>0.05) in the degree of adhesions observed at enteropexy sites in both suture materials. The use of polypropylene with superior suture qualities should be considered instead of chromic catgut for procedures in which adhesion is desired in the dog.

Fueron evaluados los patrones macroscópicos e histológicos de las adherencias abdominales formadas por el uso de catgut crómico y materiales de sutura de polipropileno. Los exámenes macroscópicos e histológicos no revelaron diferencias significativas (p> 0,05) en el grado de adherencias observadas en los sitios de la enteropexia en ambos materiales de sutura. El uso de suturas de polipropileno con mejores cualidades debe ser considerado en lugar del catgut cromado para procedimientos en los que la adherencia en el perro es deseada.

Implante sintético como estabilizador articular, após desmotomia dos ligamentos cruzados de cães: proposição de técnica / Synthetic implant as a stabilizer link, after desmotomy of the cruciate ligaments in dogs: proposition technique

A ruptura do ligamento cruzado (LC) é uma enfermidade diagnosticada em grande parte dos cães com problemas articulares, sendo a causa mais comum de afecção articular degenerativa da articulação do joelho. Este trabalho objetivou avaliar clinicamente a ação da malha de polipropileno como único substituto do LC cranial e caudal de cães, ressaltando particularidades da técnica aqui proposta. Foram utilizados 20 cães, submetidos à desmotomia unilateral dos LC cranial e caudal. Vinte e um dias após a ruptura, todos foram tratados cirurgicamente pela técnica de redução aberta, com o implante de polipropileno substituindo apenas o LC cranial. A técnica proposta demonstrou rápida execução e pouca dissecação de tecidos moles, retorno precoce à deambulação, resistência adequada do implante sem associação de imobilização externa e ausência de reação articular até os 90 dias de pós-operatório.

The ligament rupture (LC) is an illness diagnosed in most dogs with joint problems, and the most common cause of degenerative joint disease of the knee joint. This study aimed to evaluate clinically the action of a polypropylene mesh as the only substitute for cranial cruciate ligament and flow of dogs, highlighting features of the technique proposed here. It was used 20 dogs which underwent unilateral desmotomy cranial and caudal LC. Twenty-one days after the desmotomy, all were treated surgically by the technique of open reduction, with implantation of polypropylene replacing only the cranial LC. The proposed technique has shown rapid implementation and low soft tissue dissection, early return to ambulation, adequate strength of the implant without associated external immobilization and absence of articular reaction until 90 days after surgery.