Gustavo Benítez

Central University of Venezuela, Caracas, Distrito Federal, Venezuela

Are you Gustavo Benítez?

Claim your profile

Publications (10)2.44 Total impact

  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Training models in laparoscopic surgery allow the surgical team to practice procedures in a safe environment. We have proposed the use of a 4-task, low-cost inert model to practice critical steps of laparoscopic common bile duct exploration. The performance of 3 groups with different levels of expertise in laparoscopic surgery, novices (A), intermediates (B), and experts (C), was evaluated using a low-cost inert model in the following tasks: (1) intraoperative cholangiography catheter insertion, (2) transcystic exploration, (3) T-tube placement, and (4) choledochoscope management. Kruskal-Wallis and Mann-Whitney tests were used to identify differences among the groups. A total of 14 individuals were evaluated: 5 novices (A), 5 intermediates (B), and 4 experts (C). The results involving intraoperative cholangiography catheter insertion were similar among the 3 groups. As for the other tasks, the expert had better results than the other 2, in which no significant differences occurred. The proposed model is able to discriminate among individuals with different levels of expertise, indicating that the abilities that the model evaluates are relevant in the surgeon's performance in CBD exploration. Construct validity for tasks 2 and 3 was demonstrated. However, task 1 was no capable of distinguishing between groups, and task 4 was not statistically validated.
    JSLS: Journal of the Society of Laparoendoscopic Surgeons / Society of Laparoendoscopic Surgeons 01/2012; 16(1):10-5. · 0.81 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: To compare the effectiveness of laparoscopic common bile duct exploration in patients with failed endoscopic retrograde cholangiopancreatography (ERCP). This is a descriptive, comparative study. Patients with an indication of common bile duct exploration between February 2005 and October 2008 were included. We studied 2 groups: Group A: patients with failed ERCP who underwent LCBDE plus LC. Group B: patients with common bile duct stones managed with the 1-step approach (LCBDE + LC) with no prior ERCP. Twenty-five patients were included. Group A: 9 patients, group B: 16 patients. Success rate, operative time, and hospital stay were as follows: group A 66% vs group B 87.5%; group A 187 minutes vs 106 minutes; group A 4.5 days vs 2.3 days; respectively. Patients with failed ERCP should be considered as high-complex cases in which the laparoscopic procedure success rate decreases, and the conversion rate increases considerably.
    JSLS: Journal of the Society of Laparoendoscopic Surgeons / Society of Laparoendoscopic Surgeons 01/2010; 14(2):246-50. · 0.81 Impact Factor
  • Source
    Revista de la Facultad de Medicina. 06/2009; 32(1):25-30.
  • Source
    Revista de la Facultad de Medicina. 06/2008; 31(1):65-69.
  • [Show abstract] [Hide abstract]
    ABSTRACT: La presencia de tumor ovárico durante la gestación es un evento poco frecuente. Debido a los cambios anatómicos y fisiológicos producidos por la gravidez, su identificación es difícil, generalmente incidental. Los tumores de bajo potencial de malignidad representan 35 % de las lesiones ováricas malignas diagnosticadas durante la gestación; seguidos, en orden de frecuencia, por lesiones epiteliales invasivas (30%), los disgerminomas (17%), los tumores de la granulosa (15%) y los carcinomas indiferenciados (5%). El 15 % de los tumores ováricos diagnosticados en esta etapa, se identifican al momento de realizar una cirugía de emergencia por un embarazo ectópico. El advenimiento de recursos tecnológicos que hacen factible la evaluación y realización de procedimientos quirúrgicos oncológicamente óptimos a través de abordajes mínimamente invasivos, ha permitido que la cirugía laparoscópica pueda utilizarse en la actualidad como una herramienta prudente en el tratamiento de pacientes con lesiones malignas de ovario.
    Revista Venezolana de Oncologia 12/2007; 19(4):349-352.
  • Revista de la Facultad de Medicina. 06/2007; 30(1):97-99.
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Los quistes esplénicos verdaderos constituyen una rareza, es por ello que presentamos el caso de una paciente de 21 años de edad tratada por un quiste esplénico gigante (30 cm) con elevación del Ca 19-9 (1670U/mL) a quien se le realizó esplenectomía con evolución satisfactoria y sin complicaciones. La biopsia definitiva reportó quiste esplénico verdadero, siendo estas lesiones poco frecuentes, más aun cuando cursan con elevación del Ca 19-9, encontramos que se han publ
    Rev Venez Oncol. 01/2007; 20(2):98-103.
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: We present a case of a 32-year-old female patient with the diagnosis of gallstone disease and choledocholithiasis. Prior to in vivo surgery, we practiced the critical steps of the procedure using a proposed inert training model. We performed a robot-assisted laparoscopic common bile duct exploration, obtaining one stone. The operating time was 140min (console time: 120min) with no complications during the procedure. The patient was discharged 2days after the operation. Robot-assisted minimally invasive surgery of the common bile duct is a safe and effective procedure and seems to have some benefits over conventional laparoscopic surgery. KeywordsCholedocholithiasis–Robotic surgery–Laparoscopy–Training
    Journal of Robotic Surgery 5(2):145-148.
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Training and experience of the surgical team are fundamental for the safety and success of complex surgical procedures, such as laparoscopic common bile duct exploration. We describe an inert, simple, very low-cost, and readily available training model. Created using a "black box" and basic medical and surgical material, it allows training in the fundamental steps necessary for laparoscopic biliary tract surgery, namely, (1) intraoperative cholangiography, (2) transcystic exploration, and (3) laparoscopic choledochotomy, and t-tube insertion. The proposed model has allowed for the development of the skills necessary for partaking in said procedures, contributing to its development and diminishing surgery time as the trainee advances down the learning curve. Further studies are directed towards objectively determining the impact of the model on skill acquisition. The described model is simple and readily available allowing for accurate reproduction of the main steps and maneuvers that take place during laparoscopic common bile duct exploration, with the purpose of reducing failure and complications.
    JSLS: Journal of the Society of Laparoendoscopic Surgeons / Society of Laparoendoscopic Surgeons 14(1):41-7. · 0.81 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: RESUMEN La presencia de tumor ovárico durante la gestación es un evento poco frecuente. Debido a los cambios anatómicos y fisiológicos producidos por la gravidez, su identificación es difícil, generalmente incidental. Los tumores de bajo potencial de malignidad representan 35 % de las lesiones ováricas malignas diagnosticadas durante la gestación; seguidos, en orden de frecuencia, por lesiones epiteliales invasivas (30 %), los disgerminomas (17 %), los tumores de la granulosa (15 %) y los carcinomas indiferenciados (5 %). El 15 % de los tumores ováricos diagnosticados en esta etapa, se identifican al momento de realizar una cirugía de emergencia por un embarazo ectópico. El advenimiento de recursos tecnológicos que hacen factible la evaluación y realización de procedimientos quirúrgicos o n c o l ó g i c a m e n t e ó p t i m o s a t r a v é s d e a b o r d a j e s mínimamente invasivos, ha permitido que la cirugía laparoscópica pueda utilizarse en la actualidad como una herramienta prudente en el tratamiento de pacientes con lesiones malignas de ovario. SUMMARY The presence of ovarian tumor during the pregnancy is an event less frequent. For the anatomic and the fisiologic changes in the pregnancy his identification is to difficult and frequent is incidental. The low malignant potential tumor represents the 35 % of the ovarian malignant le-sions; they diagnostic true the pregnancy; follow in fre-quency order for the epithelial invasive lesions (30 %), and the dysgerminoma and (17 %) granulose tumor (15 %) and the undifferentiated carcinoma (5 %). The 15 % of ovarian tumors diagnostic in these phase were founded just in the moment to undergo an emergency surgery for the diagnostic of ectopic pregnancy. The new technological recourses let us the evaluation and realiza-tion of a surgical procedure type optimal oncological, true minimal invasive approach, these let us a laparoscopic surgery procedure they has actually utilized how a pru-dent tools, in the treatment of patients with malignant ovarian lesions.