Robot-assisted surgery and incisional hernia: a comparative study of ergonomics in a training model.

Over the years, incisional hernia repair has evolved. Currently, primary closure of the defect before placing the mesh is a critical step in incisional hernia repair and minimally invasive surgery incorporation has an important role due to great advantages. Despite its benefits, laparoscopic closure with suture intracorporeal knotting is physically demanding and technically complex. Robotic technology provides an optimal three-dimensional view, maneuverability of the instruments but no study has assessed the impact of the DaVinci system in the ergonomics which is the objective in this study. Fourteen surgeons were able to achieve surgical repair of a defect in an incisional hernia inanimate model. The task was performed with conventional laparoscopy and robotic assistance. The mental effort was registered and physical disturbances were measured with the Local Experienced Discomfort scale. The subjects expressed discomfort mainly in the dominant side (p = 0.006). In the comparative analysis between the two approaches, upper limb less disturbance (p = 0.04) and lower mental effort (p = 0.001) were reported with robotic approach. Robotic assistance decreases mental and physical effort during the primary closure of a defect in an incisional hernia inanimate model.

Colecistectomía laparoscópica: impacto de la implementación de una lista de chequeo en la adecuada preparación del quirófano / Laparoscopic cholecystectomy: impact of the implementation of a checklist in the adequate preparation of the operating room

Evaluar el impacto de la implementación de una lista de chequeo en la adecuada preparación del quirófano para realización de colecistectomía laparoscópica. Métodos: Se trata de un estudio prospectivo, controlado, no aleatorio, donde se estudió el impacto del uso de una lista de chequeo en la incidencia de eventos adversos relacionados con la preparación del quirófano para realización de colecistectomía laparoscópica. Se compararon dos grupos, grupo A, en el cual se utilizó lista de chequeo y grupo B (control) donde la preparación del quirófano se llevó a cabo sin el uso de la lista. Para el estudio, los eventos adversos se clasificaron según su naturaleza en "ausencia y/o posición" y "defecto y/o configuración". El análisis estadístico se llevó a cabo utilizando el test exacto de Fisher considerando diferencia significativa p<0,05. Resultados: Se estudiaron un total de 40 procedimientos, (grupo A: 20, grupo B: 20). La incidencia de eventos adversos relacionados con la preparación del quirófano fue de 45 %, en contraste con el grupo control, en el cual en el 100 % de los procedimientos se documentaron eventos (p<0,001). La mayoría de los eventos documentados estuvo en relación con equipo o instrumental de hemostasia. La lista de chequeo fue útil en reducir significativamente los eventos adversos relacionados con "ausencia y/o posición" (70 % vs 5 %, p<0,001) pero no los relacionados "defecto y/o configuración" (70 % vs 40 %; p=0,057). Conclusiones: La lista de chequeo es una herramienta útil para la reducción de eventos adversos relacionados con la preparación de quirófano para colecistectomía laparoscópica, pero no elimina completamente el riesgo de su aparición(AU)

to evaluate the impact of the implementation of a checklist to obtain an optimal setting of the operating room for laparoscopic cholecystectomy surgeries. Methods: it's a prospective, controlled, non-randomized study. The usefulness of checklist implementation was studied to know the incidence of adverse events related to operating room preparation for laparoscopic cholecystectomy. Two groups, group A (checklist group), and group B (control, without the implementation of a checklist) were compared. For statistical purposes, adverse events were classified according to their nature in "Absence and/or position" and "defect and/or configuration". Statistical analysis was carried out using Fisher's exact test considering significant difference a p value<0.05. Results: A total of 40 procedures were studied (group A: 20, group B: 20). The incidence of adverse events related to operating room preparation was 45 %, in contrast to the control group, in which events were documented in 100 % of the procedures (p<0.001). Most of the documented events were related to hemostasis equipment or instruments. The checklist was useful in reducing adverse events related to "absence and/or position" (70 % vs. 5 %, p<0.001) but not related to "defect and/or configuration" (70 % vs. 40 %; p=0.057). Conclusions: The checklist is a useful tool in order to reduce adverse events related to the preparation of an operating room for laparoscopic cholecystectomy, but does not completely eliminate the risk of its occurrence(AU)

Laparoscopic subtotal cholecystectomy: a surgical alternative to reduce complications in complex cases. / Colecistectomía laparoscópica subtotal como alternativa quirúrgica segura en casos complejos.

INTRODUCTION: Laparoscopic cholecystectomy is a common procedure in general surgery, and in complex cases it is important for the surgeon to know all the alternatives with low associated morbidity. Laparoscopic subtotal cholecystectomy should be considered as an option when a critical view of safety cannot be obtained, because it has a low complication rate and gives the advantages of minimally invasive surgery. METHODS: Retrospective study of laparoscopic subtotal cholecystectomies in an eight years period. RESULTS: A total of 1,059 laparoscopic cholecystectomies were performed; 22 were subtotal cholecystectomies, without conversion. Biliary fistula (9%) and intraabdominal collections (4.5%) were the most common complications described. No iatrogenic bile duct injuries or deaths were reported. Our follow-up period was 32months, no recurrences were reported. CONCLUSIONS: Laparoscopic subtotal cholecystectomy is a safe and effective procedure. It should be considered as an option in complex cases.

Gastrectomía total laparoscópica asistida por sistema da vinci en el tratamiento de la enfermedad de ménétrier / Laparoscopic total gastrectomy assisted by da vinci system in the management of ménétrier's disease

La enfermedad de Ménétrier es una enfermedad poco frecuente que se caracteriza por presentar hipertrofia gástrica asociada con hipoproteinemia. Objetivo:Presentación de caso clínico y revisión de la literatura, de un paciente con el diagnóstico de enfermedad de Ménétrier, tratado en el servicio de Cirugía III del Hospital Universitario de Caracas. Métodos:Se presenta el caso de un apaciente femenina de 65 años de edad, quien acude por presentar,dolor en epigastrio posterior a las comidas, intolerancia a la vía oral y pérdida de peso. Se realiza una endoscopia digestiva superior donde se evidencia lesión infiltrativa estenosante del cuerpo gástrico que produce reducción de la luz en 100 %, la biopsia concluye hiperplasia foveolar reactiva y cambios reactivos en el epitelio glan-dular, sugestivos de enfermedad de Ménétrier. Resultados: Lapaciente es llevada a mesa operatoria donde se procede a la reali-zación de gastrectomía total más esófago-yeyuno anastomosis por abordaje laparoscópico asistido por robot, evolucionando de manera satisfactoria, egresando al octavo día del postoperatorio. Conclusión: El abordaje laparoscópico asistido por el sistema Da Vinci es una opción factible y segura. La incorporación de la tecnología robótica facilita la realización de procedimientos complejos mediante cirugía mínimamente invasiva(AU)

Ménétrier's disease is a rare disease characterized by gastric hypertrophy associated with hypoproteinemia. Objective: Presentation of clinical case and literature review of a patient with diagnosis of Ménétrier's disease managed at Service of Surgery III, Hospital Universitario de Caracas. Methods: We present a case of a 65 years old female patient who presented epigastric pain after meals, e oral intolerance and weight loss. Upper endoscopy is performed where is evidenced gastric mucosa with prominent folds in gastric body along with stenosis at antrum-pylorous, biopsy was taken and reported foveolar reactive hyperplasia and reactive glandular epithelium changes suggestive of Ménétrier's disease. Results: A robot-assisted laparoscopic total gastrectomy and an esophagusjejunum anastomosis was performed, patient's evolution was satisfactory and is discharged at the eighth postoperative day. Conclusion: The robot-assisted laparoscopic gastrectomy is a feasible and safe option that facilitates the performance of complex procedures(AU)

Cierre primario de la vía biliar versus cierre sobre tubo en "t" durante exploración laparoscópica de la vía biliar / Primary closure of bile duct versus closure over tube "t" during laparoscopic bile duct exploration

Objetivo: Comparar la seguridad del cierre primario de la vía biliar versus cierre sobre tubo en "T", luego de la exploración laparoscópica de la vía biliar (ELVB). Método: Estudio prospectivo, controlado, no aleatorio, de pacientes con indicación de ELVB, resueltos a través de coledocotomía en un periodo de 9 años. A 15 pacientes se les realizó cierre sobre tubo en "T", mientras que a 20 pacientes se les realizó cierre primario de la vía biliar común.Resultados: No se observaron diferencias en cuanto a sexo, edad o indicación de la cirugía entre los dos grupos. Si bien el tiempo quirúrgico de los pacientes a los cuales se les colocó el tubo en "T" fue mayor (: 145 minutos vs. : 110 minutos), esta diferencia no fue estadísticamente significativa. El 80% de los pacientes con tubo en "T presentó salida de bilis a través del dren subhepático por un periodo menor a 3 días versus 30% de los pacientes con cierre primario (p < 0.05). Una paciente en el grupo de cierre sobre tubo en "T" presentó abdomen agudo debido a biliperitoneo posterior a la extracción de tubo, requiriendo reintervención laparoscópica para lavado y drenaje. No se presentaron complicaciones en el grupo de cierre primario. No se han reportado casos de litiasis residual. El tiempo de hospitalización fue comparable. Conclusión: El cierre primario del colédoco sin inserción de tubo en "T", luego de ELVB para tratamiento de la coledocolitiasis,es un procedimiento seguro y efectivo(AU)

Objetive: To compare the safety of common bile duct primary closure vs "t" tube drainage in laparoscopic common bile duct exploration (LCBDE).Method: This is a prospective, controlled, no randomized study, of patients undergoing laparoscopic common bile duct exploration through choledochotomy, in a nine years period. In15 patients we placed tube "T" drainage. In 20 cases a primary closure of the common bile duct was performed.Results: No difference in age, sex or surgery indication was observed. The operative time of patients with "t" tube insertion was longer than patients with primary closure (: 145 minutes vs. :11 0 m i n u t e s ) , h o w e v e r t h i s d i f f e r e n c e h a s n o t s t a t i s t i c a l s i g n i f i c a n -ce. 80% of patients with "t" tube had bile leakage of three days or less versus 30% of patients with primary closure (p<0.05). Onepatient with "T" tube had an acute abdomen due to biliary peritonitis after tube removal, requiring laparoscopic reintervention for lavage and drainage. There were no complications in the primary closure group. No cases of residual stones have been reported. Postoperative hospitalization time shows no difference between groups. Conclusion: Primary closure of the common bile duct without "T" tube insertion, after LCBDE for treatment of choledo-cholithiasis, is an effective and safe procedure(AU)