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    Colecistectom铆a endosc贸pica transumbilical: estudio precl铆nico de factibilidad en un modelo porcino Transumbilical endoscopic cholecystectomy: preclinical study of feasibility in a pig model

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    INTRODUCCI脫N. A partir del 2007 comenz贸 a popularizarse la cirug铆a endosc贸pica transumbilical, probablemente como consecuencia de los retos a煤n no resueltos que la cirug铆a endosc贸pica transluminal a trav茅s de orificios naturales ha debido enfrentar para su aplicaci贸n en la pr谩ctica cl铆nica. Hasta la fecha se han descrito t茅cnicas de cirug铆a endosc贸pica transumbilical con endoscopia flexible, con trocares multicanales, con varios trocares en una sola incisi贸n, as铆 como diferentes sistemas de retracci贸n, tales como la retracci贸n con suturas (t茅cnicas de marionetas) y la retracci贸n magn茅tica. El objetivo de esta investigaci贸n fue evaluar en un modelo porcino la factibilidad de una nueva t茅cnica de colecistectom铆a endosc贸pica transumbilical. M脡TODOS. Se realiz贸 un estudio prospectivo longitudinal en 6 cerdos con peso entre 22 y 26 kg. Se practic贸 la colecistectom铆a endosc贸pica transumbilical desde un puerto, con un solo canal de trabajo y con un nuevo sistema de retracci贸n vesicular (TORCAM). La eutanasia de los animales se realiz贸 de manera inmediata y fueron evaluadas las variables: factibilidad, calidad de exposici贸n, efectos adversos del sistema de retracci贸n, tiempo quir煤rgico y examen macrosc贸pico posoperatorio de la zona quir煤rgica. RESULTADOS. La calidad de la retracci贸n y exposici贸n de la ves铆cula fue considerada 贸ptima en todos los casos, lo que permiti贸 la realizaci贸n de la t茅cnica quir煤rgica en el 100 % de la muestra. No se reportaron complicaciones ni efectos adversos asociados al sistema de retracci贸n vesicular. El tiempo quir煤rgico promedio fue de 46 min. CONCLUSIONES. La colecistectom铆a endosc贸pica transumbilical propuesta es una nueva t茅cnica que demostr贸 ser factible en el modelo animal.<br>INTRODUCTION. From 2007 transumbilical endoscopic surgery to become popular probably as a consequence of the not yet solved challenges that transluminal endoscopic surgery through natural orifices has faced for its application in the clinical practice. Up to date have been described the techniques of Transumbilical endoscopic surgery with flexible endoscopy, with multi-channels, with some trocars in a only incision, as well as different retraction systems like that of the suture retraction (marionette techniques) and the magnetic retraction. The aim of present research was to assess in a pig model the feasibility of a new Transumbilical endoscopic cholecystectomy technique. METHODS. A longitudinal and prospective study was conducted in 6 pigs weighing between 22 and 26 kg. The above mentioned technique was applied from a portal, with an only work channel and with a new vesicular retraction system (TORCAM). Animal were immediately sacrificed and the following variables were assessed: feasibility, exposition quality, adverse effects of retraction system, surgical time and postoperative macroscopic examination of surgical area. RESULTS. Retraction quality and gall bladder exposition were optimal in all cases, allowing the carrying out of surgical technique in the 100% of sample. There were neither complications nor adverse effects related to the vesicular retraction system. Average surgical time was of 46 minutes. CONCLUSIONS. The proposed transumbilical endoscopic cholecystectomy is a new technique demonstrating its feasibility in the animal model
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