Eventración uterina en paciente gestante / Uterine incisional hernia in a pregnant patient

No disponible

'Sandwich' technique in the treatment of large and complex incisional hernias.

BACKGROUND: Reconstruction of large, complex abdominal wall hernias is an interesting challenge. Primary closure of those hernias is often not possible. There is little agreement about the most appropriate technique or prosthetic to repair these defects, in spite the fact of the prevalence of ventral hernias. Sometimes despite being contaminated surgical fields, we are often faced to reinforce with bio-prosthetic meshes. The component separation technique (CST) is a practical option; however, recurrence rates remain unacceptably high. In an attempt to reduce recurrences, we frequently added a biologic underlay mesh and a lightweight polypropylene on-lay mesh to the traditional CST. Our objective was to determine biologic mesh practice patterns of reconstructive surgeons with regard to indications, most appropriate technique, choice of prosthetics and experience with complications in order to work those hernias out. METHODS: Thirty consecutive patients who underwent abdominal wall reconstruction by means of a component separations associated with non-cross-linked porcine dermal scaffolds (NCPDS) or a synthetic tissue scaffold (STS) reinforcement between October 2009 and December 2011 were retrospectively reviewed. Analysis of demographics, indications for NCPDS or STS placement, surgical technique, complications and follow-up data were performed. They underwent a 'sandwich' procedure with a biologic underlay mesh and a lightweight polypropylene on-lay mesh added to the traditional CST. We chose NCPDS or STS underlay mesh according to the fact of the presence or absence of a contaminated field. RESULTS: A 'sandwich' procedure was used for abdominal wall repair in 30 patients. In all of them, NCPDS or STS was positioned using an intraperitoneal technique associated to a lightweight polypropylene on-lay mesh and the CST. At a mean follow-up time of 30.1 months, most patients had successful outcomes. Occurrences included seroma, recurrence and infection. One of our patients died from multi-organ failure unrelated to hernia repair. CONCLUSIONS: This study shows that complex abdominal wall defects can be successfully reconstructed using a 'sandwich' procedure with a low rate of recurrence and occurrences. Moreover, repair of large, complex abdominal wall hernias by CST augmented with a biologic underlay mesh and a lightweight polypropylene on-lay mesh results in lower recurrence rates compared with historical reports of CST alone.

Surgical pathology associated with Meckel´s diverticulum in a tertiary hospital: 12 year review.

OBJECTIVE: We want to present our experience about surgical pathology of Meckel´s diverticulum by means of a retrospective study. MATERIAL AND METHODS: We report a group of patients of our Department of General and Abdominal Surgery and Paediatric Surgery of our Hospital with Meckel´s diverticulum since January 1997 to January 2010. We report the clinical presentation, complementary test, interventions, and the postoperative follow up. RESULTS: 45 patients were operated in total, 33 of them in emergency surgery under the clinical form of acute abdominal pain; and the others 12 in programmed surgery, these cases came up more frequently like a clinical manifestations of latent abdominal pain, rectal bleeding and anemia. The complementary tests were so varied; abdominal ultrasounds were used in 63% of emergency cases and the 40% of programmed cases, in these patients,gammagraphy with Tc99 was the second test in frequency. Laparoscopy was used in 10 cases (22%). The main surgery technique used was diverticulectomy (82%). CONCLUSIONS: The presence of Meckel´s diverticulum has to be clinically suspected in all patients with abdominal pain of unknow naetiology. Access to the abdominal cavity using routine laparoscopy provides essential information on the diagnosis and for the treatment.

Patología quirúrgica asociada a divertículo de Meckel en un hospital de tercer nivel. Revisión de 12 años / Surgical pathology associated with Meckel's diverticulum in a tertiary hospital: 12 year review

Objetivo: presentar nuestra experiencia en la patología quirúrgica del divertículo de Meckel mediante un estudio retrospectivo. Material y métodos: presentamos una serie de casos de pacientes afectos de divertículo de Meckel, en los Servicios de Cirugía General y del Aparato Digestivo y de Cirugía Pediátrica del Hospital Universitario Virgen del Rocío, en un periodo de tiempo comprendido entre enero de 1997 y enero de 2010. En la serie se recoge la tipología de paciente, la clínica de debut, las pruebas complementarias y el tipo de intervención realizada, así como el tiempo de seguimiento postoperatorio. Resultados: se intervinieron un total de 45 pacientes, 33 de forma urgente, bajo la forma de abdomen agudo, y 12 de ellos programada, estos casos se presentaron como un cuadro de dolor abdominal más larvado, acompañado a veces de anemia ferropénica, con rectorragia manifiesta o no. Las pruebas complementarias fueron muy variadas, la más utilizada, la ecografía abdominal, realizada en el 63% de los casos urgentes y en el 40% de los programados, en estos últimos cabe destacar también el empleo de la gammagrafía con Tc99. Se utilizó el abordaje laparoscópico en 10 casos (22% del total). La técnica quirúrgica mayoritaria consistió en diverticulectomía y enterorrafia (82% de los casos). Conclusiones: la sospecha clínica de divertículo de Meckel debe estar presente en todo paciente con dolor abdominal de etiología desconocida. Consideramos que el acceso por vía laparoscópica a la cavidad abdominal contribuye al diagnóstico y tratamiento de esta enfermedad(AU)

Objective: we want to present our experience about surgical pathology of Meckel’s diverticulum by means of a retrospective study. Material and methods: we report a group of patients of our Department of General and Abdominal Surgery and Paediatric Surgery of our Hospital with Meckel’s diverticulum since January 1997 to January 2010. We report the clinical presentation, complementary test, interventions, and the postoperative follow up. Results: 45 patients were operated in total, 33 of them in emergency surgery under the clinical form of acute abdominal pain; and the others 12 in programmed surgery, these cases came up more frequently like a clinical manifestations of latent abdominal pain, rectal bleeding and anemia. The complementary tests were so varied; abdominal ultrasounds were used in 63% of emergency cases and the 40% of programmed cases, in these patients, gammagraphy with Tc99 was the second test in frequency. Laparoscopy was used in 10 cases (22%). The main surgery technique used was diverticulectomy (82%). Conclusions: the presence of Meckel’s diverticulum has to be clinically suspected in all patients with abdominal pain of unknown aetiology. Access to the abdominal cavity using routine laparoscopy provides essential information on the diagnosis and for the treatment(AU)

Total intracorporeal anastomosis during single-port laparoscopic right hemicolectomy for carcinoma of colon: a new step forward.

BACKGROUND: Laparoscopic surgery is a feasible option for colonic carcinoma as short-and long-term results show. This technique is as safe and effective as the open approach. Single-port access surgery is considered a new minimally invasive approach in the search for better cosmetic results and less postoperative pain. One of the goals of single-port surgery is to preserve the satisfactory oncological results obtained by standard laparoscopy. This study presents the first single-port access right hemicolectomy for carcinoma of colon with intracorporeal anastomosis. METHODS: The authors report a single-port access right hemicolectomy in a 59-year-old male patient with a neoplasm of the cecum stage IIA (T3, N0) according to the TNM classification. RESULTS: A transumbilical single-port access right hemicolectomy was performed with no additional trocars and total intracorporeal anastomosis. Operative time was 140 minutes. No intraoperative or postoperative complications were reported. CONCLUSION: Single-port access right hemicolectomy with intracorporeal anastomosis is a feasible and safe technique when performed by experienced laparoscopic surgeons. This approach must follow the basic principles of laparoscopic right hemicolectomy to achieve the same oncological results. The advantages of a total intracorporeal anastomosis include that there is no need to enlarge the umbilical incision and that avoid traction of the pedicle of the mesenterium of the transverse colon during the extracorporeal anastomosis.

Fijación con sutura frente a sellante de fibrina en hernioplastia con prótesis reabsorbible (ácido poliglicólico y carbonato trimetileno). Estudio experimental en animales / Mesh fixation with sutures versus fibrin sealant in hernioplasty with re-absorbable prosthesis (polyglycolic acid and trimethylene carbonate). Experimental study in animals

Introducción Dado que estudios actuales han mostrado la validez de la fijación atraumática con cola de fibrina (Tissucol®) frente a las suturas convencionales con malla de polipropileno, en este trabajo se quiere estudiar el comportamiento en las mallas reabsorbibles. Material y métodos Se utilizaron 20 ratas blancas Wistar. Se realizaron 2 defectos herniarios en la pared abdominal, que se repararon de forma preperitoneal con malla reabsorbible de ácido poliglicólico y carbonato trimetileno, en el lado de la derecha la malla se fijó con Tissucol® y en el lado de la izquierda se fijó con sutura convencional fijada a la fascia muscular. Se sacrificaron 10 ratas a los 14 días (serie A) y el resto a los 28 días (serie B). Se emplearon para comprobar la contingencia de la pared abdominal 2 test; el test de presión: neumoperitoneo mayor de 40mmHg mantenido durante 1min, y el test de tracción: dinamometría de la zona afectada mayor de 300g de tracción por cm2. Se analizó la pared abdominal para determinar la integración de la malla de nueva generación. Resultados La fijación de la malla tras los test de presión y de tracción no evidenció alteraciones estadísticamente significativas en los 2 grupos. La integración de la malla fue mayor en los casos de fijación con cola de fibrina, donde se observó un aumento del número de neovasos. Conclusiones La fijación con colas biológicas de fibrina equiparó a la convencional. La malla reabsorbible se integró adecuadamente y se comprobó que tanto la neoformación vascular como la propia integración de la malla es más notable al aplicar el sellante de fibrina que con la sutura convencional. (AU)

Introduction Current studies have shown the validity of the atraumatic fixation with fibrin glue (Tissucol®) compared to conventional sutures in polypropylene mesh fixation. We propose to study the behaviour of absorbable mesh. Material and methods We used 20 Wistar white rats. Two hernia defects were made in the abdominal wall, which were repaired using absorbable PGA-TMC preperitoneal mesh. The right side of the mesh was fixed with Tissucol and left side with conventional suture attached to the muscle fascia. One group of 10 rats were sacrificed at day 14 (Series A) and the other 10 rats at 28 days (Series B). We used two tests to assess the contingency of the abdominal wall; Pressure Test: pneumoperitoneum more than 40mmHg maintained for 1min, Traction Test: dynamometry of the affected area more than 300mg per cm2 of traction. Abdominal wall was analysed to determine the integration of the new generation mesh. Results The fixation of the mesh after the pressure and traction tests showed no statistically significant changes in either group. The integration of the mesh and vessel neoformation was higher in the cases of fixation with fibrin glue. Conclusions Biological fixation with fibrin glue is similar to the conventional. Absorbable mesh was suitably integrated and vascular neoformation and integration of the mesh was also found to be better than conventional sutures when fibrin sealant was applied (AU)

[Mesh fixation with sutures versus fibrin sealant in hernioplasty with re-absorbable prosthesis (polyglycolic acid and trimethylene carbonate). Experimental study in animals]. / Fijación con sutura frente a sellante de fibrina en hernioplastia con prótesis reabsorbible (ácido poliglicólico y carbonato trimetileno). Estudio experimental en animales.

INTRODUCTION: Current studies have shown the validity of the atraumatic fixation with fibrin glue (Tissucol) compared to conventional sutures in polypropylene mesh fixation. We propose to study the behaviour of absorbable mesh. MATERIAL AND METHODS: We used 20 Wistar white rats. Two hernia defects were made in the abdominal wall, which were repaired using absorbable PGA-TMC preperitoneal mesh. The right side of the mesh was fixed with Tissucol and left side with conventional suture attached to the muscle fascia. One group of 10 rats were sacrificed at day 14 (Series A) and the other 10 rats at 28 days (Series B). We used two tests to assess the contingency of the abdominal wall; Pressure Test: pneumoperitoneum more than 40mmHg maintained for 1min, Traction Test: dynamometry of the affected area more than 300mg per cm(2) of traction. Abdominal wall was analysed to determine the integration of the new generation mesh. RESULTS: The fixation of the mesh after the pressure and traction tests showed no statistically significant changes in either group. The integration of the mesh and vessel neoformation was higher in the cases of fixation with fibrin glue. CONCLUSIONS: Biological fixation with fibrin glue is similar to the conventional. Absorbable mesh was suitably integrated and vascular neoformation and integration of the mesh was also found to be better than conventional sutures when fibrin sealant was applied.

Role of fibrin glue in the prevention of peritoneal adhesions in ventral hernia repair.

PURPOSE: The aim of this study was to investigate the effects of fibrin glue on the prevention of postoperative peritoneal adhesion to prosthetic materials used in ventral hernia repair. METHODS: Ten pigs were included in this study. The abdomens of the animals were opened by means of a median subumbilical laparotomy to place four prostheses that were cut into square pieces of 4 x 4 cm. The two prostheses in the most cephalic position were polypropylene meshes, and the other two prostheses in a more caudal position were expanded polytetrafluoroethylene prostheses (Dualmesh Plus Corduroy). The prostheses on the right side of each animal were previously impregnated with fibrin glue. After 5 weeks, the animals were reoperated on to assess the quantity and quality (consistency) of the adhesions. RESULTS: There were fewer intraperitoneal adhesions and they were more labile in the case of prostheses impregnated with fibrin glue. Moreover, we also observed that in many of the animals the polypropylene mesh did not show any adhesions, although polypropylene has been considered to be a typical adhesion producing material. CONCLUSIONS: Fibrin glue reduces both the quantity and consistency of adhesions, even in the case of polypropylene meshes.

Use of hyaluronidase cream to prevent peritoneal adhesions in laparoscopic ventral hernia repair by means of intraperitoneal mesh fixation using spiral tacks.

BACKGROUND: The aim of this study was to investigate the effects of hyaluronidase gel on the prevention of post-operative peritoneal adhesions to prosthetic materials used in laparosopic ventral hernia repair. METHODS: Ten pigs were included in this study. The animals were anesthetized using Na-penthotal for induction and isofluorane for maintenance. The abdomen was opened and, using helical fasteners, four implantations were performed (squares of 4 x 4 cm). Two of the implants, placed in an upper location, were in polypropylene mesh, and two of the implants, placed in a lower area, were in polytetrafluoroethylene (PTFE-e, Dualmesh Plus Corduroy). The implants located in the right side of animals were painted with hyaluronidase gel. Two helical fasteners, painted and unpainted, were implanted in a medial location. After a five-week period the pigs were operated on again, intraperitoneal adhesion ratios and grades were determined, and the pigs later sacrificed. Specimens having abdominal wall implants were taken for histological studies. RESULTS: Intraperitoneal adhesions decreased in implants painted with hyaluronidase gel in a comparative study with implants located in the left side of animals (not painted). On the other hand the polypropylene mesh, said typically to produce intraperitoneal adhesions, produced almost no adhesion in many animals. CONCLUSIONS: Hyaluronidase gel reduces post-operative peritoneal adhesions ratio and grades including in the presence of polypropylene mesh.

Megacolon tóxico y perforación yeyunal por citomegalovirus / Toxic megacolon and jejunal perforation due to cytomegalovirus

La infección por citomegalovirus (CMV) es una entidad de relativa frecuencia en los pacientes inmunodeficientes y en la mitad de los casos puede afectar al tracto gastrointestinal y dar lugar a una colitis por CMV; sin embargo, no es frecuente que el proceso se complique con una perforación yeyunal. Presentamos el caso de un paciente inmunodeficiente afectado de colitis por CMV y diagnosticado tras perforación intestinal. Tras cirugía y tratamiento con antivirales, el paciente evolucionó satisfactoriamente (AU)

Cytomegalovirus (CMV) infection is a frequent disease in immunocompromised patients and can affect the gastrointestinal tract in 50% of patients, giving rise to colitis due to CMV. However, a perforated jejunum is not frequent. We present the case of an immunocompromised patient who was diagnosed with colitis due to CMV infection after bowel perforation. Outcome was favorable after surgery and antiviral treatment (AU)

[Toxic megacolon and jejunal perforation due to cytomegalovirus]. / Megacolon tóxico y perforación yeyunal por citomegalovirus.

Cytomegalovirus (CMV) infection is a frequent disease in immunocompromised patients and can affect the gastrointestinal tract in 50% of patients, giving rise to colitis due to CMV. However, a perforated jejunum is not frequent. We present the case of an immunocompromised patient who was diagnosed with colitis due to CMV infection after bowel perforation. Outcome was favorable after surgery and antiviral treatment.

[Prevention of surgical infection using reabsorbable antibacterial suture (Vicryl Plus) versus reabsorbable conventional suture in hernioplasty. An experimental study in animals]. / Prevención de la infección quirúrgica utilizando sutura reabsorbible antibacteriana (Vicryl Plus) en lugar de la sutura reabsorbible convencional en hernioplastias. Estudio experimental en animales.

INTRODUCTION: Surgical site infections are frequent in daily surgical practice. One of the main challenges currently facing surgeons is the prevention and treatment of infections, especially those involving prosthetic material. A new suture (Vicryl Plus) has become available. In vitro studies and experimental models have demonstrated the ability of this suture to inhibit bacterial growth and consequently prevent postsurgical infection. OBJECTIVES: To compare infections provoked in prosthetic implants fixed with reabsorbable conventional sutures with those in meshes fixed with reabsorbable sutures with antiseptic impregnation. MATERIAL AND METHOD: Twenty white Wistar rats were used. In each rat, two hernioplasties were performed: one fixed with Vicryl Plus and the other with normal Vicryl. Subsequently, each polypropylene mesh was infected with S. aureus, and the rats remained in individual cages for a week. After 1 week, the rats were sacrificed and the meshes were extracted for macroscopic, microscopic and microbiologic study. RESULTS: Most of the meshes fixed with the new suture (Vicryl Plus) showed macroscopically fewer infections than those fixed with conventional suture, without abscesses and without dehiscence of the hernioplasty. In the microbiological quantitative bacterial study, the number of bacteria quantified per gram of sample was also lower in prostheses fixed with Vicryl Plus. Pathological analysis showed lesser colonization of the mesh and lower inflammatory response with Vicryl Plus than with normal Vicryl. In the statistical analysis, comparison of the medians of both groups and the interquartile ranges of microbial quantification revealed a lower infection rate in the Vicryl Plus group. CONCLUSIONS: The infection rate in the surgical site can be reduced by mesh fixation using the new antimicrobial suture (Vicryl Plus). We believe that this type of suture constitutes a new weapon in the fight against postoperative infection, especially in hernioplasty, emergency surgery, and dirty or potentially contaminated surgery.

Prevención de la infección quirúrgica utilizando sutura reabsorbible antibacteriana (Vicryl Plus) en lugar de la sutura reabsorbible convencional en hernioplastias. Estudio experimental en animales / Prevention of surgical infection using reabsorbable antibacterial suture (Vicryl Plus) versus reabsorbable conventional suture in hernioplasty. An experimental study in animals

Introducción. En nuestra práctica diaria quirúrgica nos enfrentamos a infecciones del propio sitio quirúrgico con frecuencia. Uno de los grandes retos para el cirujano hoy en día es la prevención y el tratamiento de las infecciones, y en especial las infecciones de material protésico. En la actualidad disponemos de una nueva sutura (Vicryl Plus) que ha demostrado in vitro y en modelo experimental su capacidad para inhibir el crecimiento bacteriano y por lo tanto prevenir la tan temida infección posquirúrgica. Objetivos. Nos proponemos en nuestro estudio experimental realizar una comparación entre una infección provocada en una prótesis para tratar la enfermedad herniaria fijada con sutura reabsorbible convencional y la nueva sutura motivo del estudio, sutura reabsorbible con impregnación antiséptica. Material y método. Utilizamos como modelo animal ratas Wistar blancas (20), a las cuales les practicamos dos hernioplastias. Una fijada con Vicryl Plus y otra con Vicryl normal. Posteriormente se infecta cada malla de polipropileno con Staphylococcus aureus, y permanece en su jaula individual una semana. A la semana procedemos al sacrificio de las ratas y la extracción de las mallas para su estudio macroscópico, microscópico y mibrobiológico. Resultados. Comprobamos que la mayoría de las mallas fijadas con la nueva sutura (Vicryl Plus) presentaban macroscópicamente menos indicios de infección, sin abscesos ni dehiscencia de la hernioplastia, en contra de lo observado en aquellas fijadas con sutura convencional. En el estudio microbiológico cuantitativo bacteriano el número de bacterias cuantificadas por gramo de muestra es menor también en las prótesis fijadas con Vicryl Plus. En la anatomía patológica de la muestra observamos menor colonización de la malla y menor respuesta inflamatoria con la fijación con Vicryl Plus que con Vicryl normal. En el estudio estadístico se comprueba la menor tasa de infección al comparar las medianas de ambos grupos y los rangos intercuartílicos de la cuantificación microbiana. Conclusiones. Es posible disminuir el índice de infección del sitio quirúrgico tras la colocación de material protésico realizando su fijación con este nuevo tipo de sutura antimicrobiana (Vicryl Plus). Pensamos que es un nuevo aliado en la lucha contra la infección postoperatoria, y es de especial interés su uso en cirugía con hernioplastia, cirugía de urgencia y cirugía sucia o potencialmente contaminada (AU)

Introduction. Surgical site infections are frequent in daily surgical practice. One of the main challenges currently facing surgeons is the prevention and treatment of infections, especially those involving prosthetic material. A new suture (Vicryl Plus) has become available. In vitro studies and experimental models have demonstrated the ability of this suture to inhibit bacterial growth and consequently prevent postsurgical infection. Objectives. To compare infections provoked in prosthetic implants fixed with reabsorbable conventional sutures with those in meshes fixed with reabsorbable sutures with antiseptic impregnation. Material and method. Twenty white Wistar rats were used. In each rat, two hernioplasties were performed: one fixed with Vicryl Plus and the other with normal Vicryl. Subsequently, each polypropylene mesh was infected with S. aureus, and the rats remained in individual cages for a week. After 1 week, the rats were sacrificed and the meshes were extracted for macroscopic, microscopic and microbiologic study. Results. Most of the meshes fixed with the new suture (Vicryl Plus) showed macroscopically fewer infections than those fixed with conventional suture, without abscesses and without dehiscence of the hernioplasty. In the microbiological quantitative bacterial study, the number of bacteria quantified per gram of sample was also lower in prostheses fixed with Vicryl Plus. Pathological analysis showed lesser colonization of the mesh and lower inflammatory response with Vicryl Plus than with normal Vicryl. In the statistical analysis, comparison of the medians of both groups and the interquartile ranges of microbial quantification revealed a lower infection rate in the Vicryl Plus group. Conclusions. The infection rate in the surgical site can be reduced by mesh fixation using the new antimicrobial suture (Vicryl Plus). We believe that this type of suture constitutes a new weapon in the fight against postoperative infection, especially in hernioplasty, emergency surgery, and dirty or potentially contaminated surgery (AU)

[Prevention of peritoneal adhesions to intraperitoneal prostheses. An experimental study in pigs]. / Prevención de adherencias peritoneales a las prótesis intraperitoneales. Estudio experimental en cerdos.

INTRODUCTION: The aim of this study was to investigate the effect of fibrin glue and hyaluronidase gel on the prevention of postoperative peritoneal adhesions to intraperitoneal prostheses. MATERIAL AND METHOD: Twenty pigs, divided in two groups, were included. In all animals, four implants (4 x 4 cm) were placed: two polypropylene mesh implants were placed in an upper location and two polytetrafluoroethylene (PTFE) implants (Dualmesh Plus Corduroy) were placed in a lower position. Implants located in the right side of the animals were painted with fibrin glue (group A, n = 10) or with hyaluronidase gel (group B, n = 10). After 5 weeks, the animals were sacrificed and the results (number and grade of intraperitoneal adhesions, histological data on prosthesis integration, such as mesothelialization, fibroblast infiltration, vessel neoformation, etc.) were evaluated. RESULTS: Intraperitoneal adhesions decreased in implants painted with fibrin glue and hyaluronidase gel compared with untreated implants. When right-sided adhesions formed, they were looser and in many animals, the implants were completely peritonized. Integration of the prostheses was not affected by either fibrin glue or hyaluronidase gel. CONCLUSIONS: Adhesion formation can be reduced after abdominal surgery. The reduction achieved in this study was greater in the quantity than in the consistency of the adhesions. The results with hyaluronidase gel were moderately superior to those obtained with fibrin glue. Hyaluronidase gel has the advantage of being inexpensive.

Prevención de adherencias peritoneales a las prótesis intraperitoneales. Estudio experimental en cerdos / Prevention of peritoneal adhesions to intraperitoneal prostheses. An experimental study in pigs

Introducción. El objetivo de este estudio es investigar el efecto de la cola de fibrina y del gel de hialuronidasa en la prevención de adherencias peritoneales a las prótesis intraperitoneales. Material y método. En este estudio hemos utilizado 20 cerdos, divididos en 2 grupos: en todos los animales se procedió a colocar implantes de 4 x 4 cm: 2 de malla de polipropileno en una posición más cefálica, y otros dos de politetrafluoroetileno (Dualmesh® Plus Corduroy) en una posición más caudal. Los implantes situados en el lado derecho del animal se impregnaron de inhibidores de la producción de adherencias (en 10 animales se utilizó cola de fibrina, serie A, y en otros 10 se utilizó gel de hialuronidasa, serie B). Después de 5 semanas, se procedió al sacrificio de los animales y se evaluaron los resultados (cantidad y calidad de las adherencias formadas, así como datos histológicos de integración de las prótesis, como mesotelización infiltración por fibroblastos, vasos neoformados, etc.). Resultados. Al cabo de 5 semanas se apreciaba que los implantes impregnados de sustancias inhibidoras de la producción de adherencias presentaban menos adherencias, éstas (cuando existían) eran más laxas, e incluso en muchos casos los implantes estaban perfectamente peritonizados. La integración de las prótesis no estaba afectada por la presencia de los inhibidores. Conclusiones. La formación de adherencias puede disminuirse tras la cirugía abdominal. La disminución conseguida es mayor en la cantidad que en la consistencia de adherencias. Los resultados son algo mejores en la serie en la que se utilizó hialuronidasa que en la que se utilizó cola de fibrina. La hialuronidasa tiene la ventaja de tener un menor coste (AU)

Introduction. The aim of this study was to investigate the effect of fibrin glue and hyaluronidase gel on the prevention of postoperative peritoneal adhesions to intraperitoneal prostheses. Material and method. Twenty pigs, divided in two groups, were included. In all animals, four implants (4 x 4 cm) were placed: two polypropylene mesh implants were placed in an upper location and two polytetrafluoroethylene (PTFE) implants (Dualmesh Plus Corduroy) were placed in a lower position. Implants located in the right side of the animals were painted with fibrin glue (group A, n = 10) or with hyaluronidase gel (group B, n = 10). After 5 weeks, the animals were sacrificed and the results (number and grade of intraperitoneal adhesions, histological data on prosthesis integration, such as mesothelialization, fibroblast infiltration, vessel neoformation, etc.) were evaluated. Results. Intraperitoneal adhesions decreased in implants painted with fibrin glue and hyaluronidase gel compared with untreated implants. When right-sided adhesions formed, they were looser and in many animals, the implants were completely peritonized. Integration of the prostheses was not affected by either fibrin glue or hyaluronidase gel. Conclusions. Adhesion formation can be reduced after abdominal surgery. The reduction achieved in this study was greater in the quantity than in the consistency of the adhesions. The results with hyaluronidase gel were moderately superior to those obtained with fibrin glue. Hyaluronidase gel has the advantage of being inexpensive (AU)

Papel de la desnutrición en la síntesis de colágeno en anastomosis cólicas primarias: análisis de procolágeno y telopéptido carboxiterminal mediante radioinmunoanálisis / Role of malnutrition in collagen synthesis in primary colonic anastomosis. Analysis of procollagen and carboxyterminal telopeptide through radioimmunoassay

Introducción: Diversos factores clínicos, anatomopatológicos y técnicos influyen en la cicatrización correcta de las suturas intestinales tras la práctica de una resección intestinal. Uno de los factores más implicados es el estado nutricional del paciente. Objetivos: Evaluar la influencia de la desnutrición inducida en la viabilidad de una anastomosis intestinal primaria mediante el análisis del procolágeno (PINP) y del telopétido carboxiterminal del colágeno I (ICTP) depositados en ella. Material y método: Usamos 40 ratas Wistar y material de radioinmunoanálisis (kits comerciales de RIA ICTP-RIA® e Intact PINP®). Se formaron 2 grupos de ratas, 20 animales para cada grupo: grupo control (A) y grupo "desnutrición" (B). Se analizó PINP e ICTP mediante RIA sobre tejido colónico homogeneizado, preanastomótico y anastomótico. Resultados: Hay menores valores de PINP en el colon de las ratas del grupo B que en el del grupo A (0,3620 y 0,4340 µg/g, respectivamente) (p = 0,032). Hay un mayor valor de ICTP analizado en el colon del grupo B (0,9545 en contraposición a 0,8460 µg/g, en el grupo A) (p = 0,875). En las anastomosis del grupo B hay menos síntesis de PINP que en el grupo A (0,376 y 0,468 µg/g, respectivamente; p = 0,002). Conclusiones: La anastomosis colónica incrementa las concentraciones de PINP e ICTP en el tejido cicatrizal (p < 0,001); la desnutrición reduce la colagenización de las anastomosis (p < 0,001)

Introduction: Various clinical, pathological and technical factors influence the viability of intestinal suturing after intestinal resection. One of the most important factors is the patient's nutritional status. Objectives: To evaluate the influence of induced nutrition on the viability of primary intestinal anastomosis by means of analysis of collagen I procollagen (PINP) and telopeptide (ICTP) deposited in the anastomosis. Material and method: 40 Wistar rats and material for the radioimmunoassay (ICTP-RIA® and Intact PINP® commercial radioimmunoassay kits) were used. We used two groups of 20 rats each: control group (A) and a "malnourished" group (B). PINP and ICTP were analyzed through radioimmunoassay of homogenized, preanastomotic and anastomotic colonic tissue. Results: PINP levels were lower in the colons of group B rats than in the control group (0.3620 and 0.4340 µg/g respectively) (p = 0.032). ICTP levels were higher in the colons of group B rats than in those of group A rats (0.9545 versus 0.8460 µg/g respectively) (p = 0.875). PINP synthesis was lower in the anastomoses of group B than in group A (0.376 and 0.468 µg/g respectively; p = 0.002). Conclusions: Colonic anastomosis increases PINP and ICTP levels in scar tissue (p < 0.001). Malnutrition reduces collagenization of colonic anastomoses (p < 0.001)