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OBJECTIVE: The aim of this study was to evaluate the effect of three training methodologies on the acquisition of psychomotor skills for laparoendoscopic single-site surgery (LESS), using straight and articulating instruments. METHODS: A prospective study was conducted with subjects randomly divided into three groups, who performed a specific training for 12 days using three laparoscopic tasks in a laparoscopic simulator. Group-A trained in conventional laparoscopy setting using straight instruments and in LESS setting using both straight and articulating instruments. Group-B trained in LESS setting using straight and articulating instruments, whereas Group-C trained in LESS setting using articulating instruments. Participants' performance was recorded with a video-tracking system and evaluated with 12 motion analysis parameters (MAPs). RESULTS: All groups obtained significant differences in their performance in most of the MAPs. Group-C showed an improvement in nine MAPs, with a high level of technical competence. Group-A presented a marked improvement in bimanual dexterity skills. CONCLUSIONS: Training in LESS surgery using articulating laparoscopic instruments improves the quality of skills and allows smoother learning curves.

OBJETIVO: Evaluar el efecto de tres métodos de entrenamiento en la adquisición de habilidades psicomotrices para la cirugía laparoendoscópica por puerto único (LESS, laparoendoscopic single-site surgery) utilizando instrumental recto y articulado. MÉTODO: Se realizó un estudio prospectivo con sujetos divididos aleatoriamente en tres grupos, quienes realizaron un entrenamiento específico durante 12 días utilizando tres tareas laparoscópicas en un simulador laparoscópico. El grupo A entrenó en el entorno laparoscópico convencional con instrumentos rectos, y en el entorno LESS con instrumentos rectos y articulados. El grupo B entrenó en el entorno LESS con instrumentos rectos y articulados. El Grupo C entrenó en el entorno LESS con instrumentos articulados. El desempeño de los participantes se registró con un sistema de seguimiento en video y fue evaluado con 12 parámetros de análisis de movimiento (MAP, motion analysis parameters). RESULTADOS: Todos los grupos obtuvieron diferencias significativas en su desempeño para la mayoría de los MAP. El grupo C mostró una mejora en nueve MAP, con un alto nivel de competencia técnica. El grupo A mostró una marcada mejora en la habilidad de destreza bimanual. CONCLUSIONES: El entrenamiento en cirugía LESS con instrumentos articulados mejora la calidad de las habilidades adquiridas y permite curvas de aprendizaje más suaves.

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Introdução: A colecistectomia por incisão única assistida por robótica é técnica cirúrgica emergente para o tratamento da doença da vesícula biliar. Objetivo: Analisar os resultados clínicos e o custo efetividade dela, com foco no tempo de permanência hospitalar, tempo de operação, custo total e taxa de conversão entre robótica e outros procedimentos. Métodos: Revisão sistemática e metanálise foram realizadas de acordo com o Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Os bancos de dados PubMed, Embase e Cochrane foram pesquisados desde o início até março de 2023. Análise estatística foi feita usando o R versão 6.2.1. Metanálise de efeitos aleatórios com razão de risco, diferença média e intervalo de confiança de 95% foi estimada usando a variância inversa e o método de Mantel-Haenszel para resultados binários e o estimador DerSimonian-Laird para resultados contínuos. Resultados: Um total de 452 pacientes foram envolvidos, incluindo 4 estudos randomizados. Os desfechos escolhidos para metanálise foram: permanência hospitalar (MD −0.03 dias, CI 95% −0.12 a 0.18, p=0.708), tempo de operação (MD 12.93 min, CI 95% −21.40 a 47.25, p=0.460) e taxa de conversão (RR 0.90, CI 95% 0.44 a 1.83, p=0.771). Conclusão: Não houve diferença estatisticamente significativa em relação à duração da permanência hospitalar, tempo de operação e taxa de conversão entre a colecistectomia robótica por incisão única e outras técnicas cirúrgicas para a doença da vesícula biliar.

Introduction: Robotic-assisted single-incision cholecystectomy is an emerging surgical technique for the treatment of gallbladder disease. Objective: To analyze the clinical results and its cost effectiveness, focusing on length of hospital stay, operating time, total cost and conversion rate between robotics and other procedures. Methods: Systematic review and meta-analysis were performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. PubMed, Embase, and Cochrane databases were searched from inception through March 2023. Statistical analysis was performed using R version 6.2.1. Random effects meta-analysis with hazard ratio, mean difference and 95% confidence interval was estimated using inverse variance and the Mantel-Haenszel method for binary outcomes and the DerSimonian-Laird estimator for continuous results. Results: A total of 452 patients were enrolled, including 4 randomized trials. The outcomes chosen for meta-analysis were: hospital stay (MD −0.03 days, CI 95% −0.12 to 0.18, p=0.708), operating time (MD 12.93 min, CI 95% −21.40 to 47.25, p=0.460) and of conversion (RR 0.90, CI 95% 0.44 to 1.83, p=0.771). Conclusion: There was no statistically significant difference regarding length of hospital stay, operating time and conversion rate between single-incision robotic cholecystectomy and other surgical techniques for gallbladder disease.

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BACKGROUND: The study is amined to correlate the voiding pattern after successful mini sling Ophira implantation with postoperative symptoms and satisfaction, in addition to identifying obstructions. MATERIALS AND METHODS: From 2012 to 2015 in a single institution, all consecutive patients who had stress urinary incontinence treated by using the mini sling Ophira had a pre- and 12 months postoperative urodynamic test. The International Consultation on Incontinence Questionnaire - Urinary Incontinence - Short Form (ICIQ-UI-SF) and the International Consultation on Incontinence Questionnaire - Overactive Bladder (ICIQ-OAB) translated into Portuguese, were given. Patients were objectively considered cured when presenting no urinary incontinence at the Valsalva test and subjectively cured when the ICIQ-UI-SF was zero. RESULTS: Questionnaire scores were obtained from 29 patients and urodynamic data from 20 patients. Mini sling Ophira implantation resulted in a significant improvement of urinary symptoms evidenced by a significant mean reduction in ICIQ-UI-SF from 16 to 5 (p < 0.0001) and ICIQ-OAB from 8 to 4 (p = 0.0001). The subjective and objective cure rates were 55% and 45%, respectively. The urodynamic changes were not related to success even when adjusted for age, hormonal status, or anterior pelvic organ prolapse. The mean maximum flow decreased to 4.9 mL/s (95% CI: 0.62-10.8; p = 0.035), and the mean detrusor pressure at maximum flow increased to 11.4 cmH2O (95% CI: 4-18; p = 0.0078). CONCLUSIONS: Mini sling Ophira implantation decreased maximum urinary flow and increased the detrusor pressure at the maximum urinary flow and these urodynamic changes were not related to success.

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There has been no prior report of single-incision laparoscopic surgery (SILS) from the Caribbean island of Turks and Caicos. We report our initial experience with SILS cholecystectomy to show that SILS in this environment is feasible with minimal change to the existing hardware. It is a safe alternative to conventional multi-trocar laparoscopic cholecystectomy in this setting.

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BACKGROUND: Stress urinary incontinence carries a significant healthcare burden for women worldwide. Single incision slings are minimally invasive mesh devices designed to treat stress urinary incontinence. For prolapse repair, meshes with higher porosity and lower structural stiffness have been associated with improved outcomes. OBJECTIVE: In this study, we compared the higher stiffness, lower porosity Altis sling with the lower stiffness, higher porosity Solyx sling in an ovine model. We hypothesized that SIS-B would have a negative impact on the host response. STUDY DESIGN: A total of Altis and Solyx single incision slings were implanted suburethrally into sheep according to the manufacturer's instructions on minimal tension. The mesh-urethral-vaginal complex and adjacent ungrafted vagina (no mesh control) were harvested en bloc at 3 months. Masson's trichrome and picrosirius red staining of 6 µm thin sections was performed to measure interfiber distance and tissue integration. Smooth muscle contractility to a 120 mM KCl stimulus was performed in an organ bath to measure myofiber-driven contractions. Standard biochemical assays were used to quantify glycosaminoglycan, total collagen, and elastin content, and collagen subtypes. Bending stiffness was performed in response to a uniaxial force to define susceptibility to folding/buckling. Statistical analysis was performed using Mann-Whitney, Gabriel's pairwise post hoc, Wilcoxon matched-pairs, and chi-square tests. RESULTS: The animals had similar ages (3-5 years), parity (multiparous), and weights (45-72 kg). Trichrome cross sections showed that the Altis sling buckled in a "C" or "S" shape in most samples (8 of 11), whereas buckling after Solyx sling implantation was observed in only a single sample (1 of 13; P=.004). Tissue integration, as measured by the presence of collagen or smooth muscle between the mesh fibers on trichrome 4× imaging, was increased in samples implanted with the Solyx sling compared with the Altis sling (P<.05). Total collagen content decreased significantly with both products when compared with the ungrafted vagina consistent with stress shielding. There was no difference in the 2 groups with regard to glycosaminoglycan or elastin content. The Altis sling mesh tissue complex demonstrated significantly higher amounts of both collagen types I and III than the Solyx sling-implanted tissue and the ungrafted control. Smooth muscle contractility in response to 120 mM KCl was decreased after implantation of both slings compared with the sham (P=.011 and P<.01), with no difference between mesh types (P=.099). Bending stiffness in the Altis sling was more than 4 times lower than in the Solyx, indicating an increased propensity to buckle (0.0186 vs 0.0883). CONCLUSION: The structurally stiffer Altis sling had decreased tissue integration and increased propensity to buckle after implantation. Increased collagen types I and III after the implantation of this device suggests that these changes may be associated with a fibrotic response. In contrast, the Solyx sling largely maintained a flat configuration and had improved tissue integration. The deformation of the Altis sling is not an intended effect and is likely caused by its lower bending stiffness. Both meshes induced a decrease in collagen content and smooth muscle contractility similar to previous findings for prolapse meshes and consistent with stress shielding. The long-term impact of buckling warrants further investigation.

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RESUMEN El objetivo del trabajo es profundizar en los diferentes aspectos cognoscitivos sobre las nuevas evidencias concernientes al tratamiento de la apendicitis aguda y comparar los resultados obtenidos con las diferentes técnicas quirúrgicas empleadas actualmente y el tratamiento conservador. Se realizó una revisión bibliográfica y se seleccionaron artículos en las fuentes electrónicas: Web of Science, Scielo, Elsevier, PubMed, Medline y Google, publicadas en la presente centuria en idiomas español e inglés. La apendicetomía mediante laparotomía ha sido siempre la regla de oro para el tratamiento de la apendicitis aguda. En 1982, se introdujo el acceso laparoscópico que ha demostrado ser tan seguro y eficiente como el convencional. En 2004, la cirugía endoscópica a través de orificios naturales; en 2007 por un solo puerto y en 2015 mediante endoscopia retrógrada. La evolución del cuadro clínico es variable por lo que se han propuesto estrategias como la cirugía ambulatoria, el tratamiento conservador seguido o no de cirugía de intervalo, a fin de evitar intervenciones innecesarias con morbilidad y mortalidad similares a las realizadas con urgencia. La apendicetomía mediante laparotomía o laparoscopia aun es la regla de oro del tratamiento de la apendicitis aguda, aunque se impone el acceso laparoscópico, han surgido nuevas técnicas invasivas y la cirugía ambulatoria. La antibioticoterapia es esencial y como tratamiento único tiene como objetivo disminuir los costos y la morbilidad asociada a la cirugía; por tanto, actualmente el tratamiento adecuado de esta enfermedad es controversial y dependerá de los protocolos de actuación establecidos, el estado del paciente y los recursos disponibles(AU)

ABSTRACT The objective of this work is to study in depth the different cognitive aspects about the new evidences concerning the treatment of acute appendicitis and to compare the results obtained with the different surgical techniques currently used and the conservative treatment. A bibliographic review was carried out and articles were chosen from the electronic sources Web of Science, Scielo, Elsevier, PubMed, Medline, and Google, published in this century in Spanish and in English. Appendectomy by laparotomy has always been the gold standard for the treatment of acute appendicitis. In 1982, laparoscopic access was introduced, which has proven safe and efficient as conventional access. In 2004, endoscopic surgery through natural orifices was used; in 2007, it was performed by a single port, and in 2015, through retrograde endoscopy. The evolution of the clinical picture is variable so strategies have been proposed such as ambulatory surgery, conservative treatment followed or not by interval surgery, in order to avoid unnecessary interventions with morbidity and mortality similar to those performed with urgency. Appendectomy by laparotomy or laparoscopy is still the golden standard of the treatment of acute appendicitis, although laparoscopic access is required, new invasive techniques and outpatient surgery have emerged. Antibiotic therapy is essential and, as a single treatment, aims to reduce costs and morbidity associated with surgery; therefore, the adequate treatment of this disease is currently controversial and will depend on the established protocols of action, patient condition, and the available resources(AU)

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BACKGROUND: The role of single-incision mini-slings (SIMS) in stress urinary incontinence (SUI) management is still not elucidated. OBJECTIVE: To compare efficacy and safety of SIMS and transobturator sling (TOT) for SUI after 36-month follow-up. METHODS: A randomized controlled clinical trial involving 130 women with SUI that had either SIMS or TOT. Primary outcomes: objective cure defined as negative cough stress and pad tests, and subjective cure reported as satisfaction and no desire for additional treatment. SECONDARY OUTCOMES: quality-of-life by IQOL and UDI-6 questionnaires, complications and reoperation rates. Student's t, χ2 , Fisher's exact, and Mann-Whitney tests, ANOVA and P < 0.05 as cut-off point were used for statistics. RESULTS: A total of 82 patients (n:41 each arm) completed 36-month follow-up. Objective cure was lower in the SIMS compared to TOT groups by both per protocol (68.3% and 90.2%, respectively, P = 0.027) and intention-to-treat analysis considering missing data as failures (40.6% and 60.7%, respectively, P = 0.035), while similar in both groups (81.2% and 93.4%, respectively) considering missing data as successes. Subjective cure rates were similar for both groups. TOT group presented better outcome regarding the avoidance and limiting behavior domain of IQOL (P = 0.021), and UDI-6 scores (P = 0.026). Seven out of 69 (10.1%) women in the SIMS group compared with two out of 61 (3.3%) in the TOT group (P = 0.172) had repeat surgery due to recurrent SUI at year follow up. CONCLUSION: TOT was associated to higher objective cure rate than SIMS for SUI treatment although satisfaction rate was similar for both groups 3 years postoperative.

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BACKGROUND: About 20% of the population has cholelithiasis and this is the main abdominal cause of hospitalization in developed countries. Considering that only in the United States about 700,000 cholecystectomies are done each year, it is possible to estimate the importance of the problem for public health. OBJECTIVE: To describe a two-incision laparoscopic cholecystectomy (TILC) technique using only conventional material, without increasing complications or operative time. MATERIALS AND METHODS: A consecutive and prospective case series compared to another historical operated by conventional laparoscopic cholecystectomy (LC). The TILC was performed with three trocars in two incisions, two trocars in umbilical incision, and one in epigastrium. RESULTS: A total of 72 patients were operated on by the same surgeon (36 in each group). There were no significant differences between groups for gender, mean age, body mass index, or length of hospital stay. The procedures were classified by the surgeon according to surgical difficulty and 58.3% (n = 42) were considered low grade, 9.7% (n = 7) difficult, and the other were intermediaries, with no difference between the series (P < .05). There were minor complications in 6.94% (n = 5) procedures. There were no differences between mean operative time (P = .989), which was 49 (95% confidence interval [CI] 42-56) minutes in LC and 40 (95% CI 35-44) min in TILC. There was no need for additional trocars in any case or for conversion to open surgery. CONCLUSIONS: TILC is feasible, safe, and with good aesthetic result, using the same instruments of LC, without increasing operative time.

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Introducción El abordaje del ganglio centinela por incisión mamaria única permite acceder al ganglio evitando la realización de incisión axilar, lo que disminuiría el linfedema, el dolor y las disestesias y mejoraría el resultado estético. Objetivos Describir el abordaje quirúrgico del ganglio centinela a través de la incisión mamaria utilizada para la tumorectomía del carcinoma mamario. Material y método Entre septiembre de 2013 y agosto de 2015, se evaluaron 83 pacientes consecutivas con axila clínicamente negativa, que fueron sometidas a cirugía conservadora más biopsia de ganglio centinela, un grupo mediante abordaje clásico (incisión axilar) y otro por la incisión mamaria. Se estudió: edad; tamaño tumoral y ubicación; tipo histológico; técnica de identificación del ganglio centinela; número de ganglios resecados; ganglios centinelas positivos; y complicaciones perioperatorias. Resultados La detección del ganglio centinela por una única incisión se logró en todas las pacientes (100% de éxito). La realización de una única incisión presentó menores complicaciones en comparación con las pacientes a las que se les realizó diferentes incisiones; además, se encontraron mejores resultados estéticos. Conclusiones El abordaje del ganglio centinela mediante la misma incisión de la cirugía mamaria conservadora presenta una excelente tasa de detección, ofreciendo menos complicaciones y mejores resultados estéticos.

Introduction The sentinel node approach through a single breast incision allows its detection avoiding axillary incision, which could reduce complications and improve aesthetic result. Objectives The aim of this work was to describe the surgical approach of sentinel node via the single incision used for conservative surgery for breast carcinoma. Materials and method Patients (n=83) with clinically negative axilla, who went through conservative surgery and axillary sentinel node biopsy using classical approach (axillary incision) and single breast incision, in early-stage breast cancer, were studied. Clinical, anatomical and pathological variables and perioperative complications were considered. Results Our results showed that the method of detection of sentinel node by a single breast incision was successful in 100 % of the cases. The performance of a single incision presented minor complications compared to patients who underwent different incisions; also better aesthetic results were also found. Conclusions The surgical approach of the sentinel node through the single incision of breast conserving surgery presents an excellent detection rate, fewer complications and better aesthetic results.

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Antecedentes: el tratamiento laparoscópico de la hernia inguinal ha ido ganando mayor aceptación en virtud de las ventajas del abordaje mininvasivo. Para mejorarlas más aún se plantea la incorporación de otras variantes técnicas. La hernioplasta inguinal totalmente extraperitoneal (TEP) por incisión única constituye una nueva opción, pero no existen en la actualidad series de casos que confirmen su factbilidad y seguridad. Objetivo: verificar la factbilidad y seguridad de dicho método en el tratamiento de la hernia inguinal reductble. Material y métodos: en pacientes sometidos a hernioplasta inguinal laparoscópica TEP por incisión única entre agosto de 2014 y agosto de 2015 se analizaron datos demográficos, tipo y tamaño de hernia, tipo y tamaño de la malla, número de agrafes, tempo operatorio, estadía hospitalaria y complicaciones. Se valoró la intensidad del dolor posoperatorio mediante una escala visual análoga, y grado de satisfacción. Se realizó ecografa de región periumbilical (sito de acceso) y de región inguinocrural tratada, con el objeto de evaluar el grado de morbilidad asociada y recidiva. Resultados: se realizaron 43 hernioplastas TEP por incisión única en 29 pacientes. En 14 pacientes fueron bilaterales (48,2%), 88,4% hombres, de edad promedio 40 años (16-72). Fueron hernias T2 e indirectas en el 72% de los casos. El tempo promedio de estadía fue de 0,56 días (0,5-1,5). La intensidad del dolor a las 12 horas y al 7° día posoperatorio, 4,1 puntos en promedio. El grado promedio de satisfacción con el resultado cosmético fue de 9,5 (rango 8-10). No se registraron complicaciones mayores y 4 casos (9,3%) presentaron complicación menor. El tempo quirúrgico promedio fue 38,3 minutos. No se detectó recidiva herniaria en toda la serie, con una media de seguimiento de 7,1 meses. Conclusiones: la hernioplasta inguinal TEP-incisión única consttuye una opción factble y segura de realizar en pacientes seleccionados con hernia inguinal pequeña y reductble, sin riesgo adicional y sin exigencia técnica adicional. Estos hallazgos se suman a los beneficios de un menor traumatismo de la pared abdominal y un mejor resultado cosmético.

Background: the laparoscopic treatment of inguinal hernia has gained greater acceptance, by virtue of the advantages already demonstrated by minimally invasive approach. For further improvement, the incor-poraton of new technical variantis arises. Extraperitoneal inguinal hernia repair by single incision is a new opton, not existing at present series of cases that confrm their feasibility and safety. Objective: to evaluate the feasibility and safety of this method in the treatment of reducible inguinal hernia. Materials and methods: in patentis undergoing inguinal hernia repair by single incision laparoscopic sur-gery - TEP between August 2014 and August 2015; demographics, type and size of hernia, type and size of mesh, number of staples, operative tme, hospital stay, and complicatons were analyzed. The intensity of postoperative pain using a visual analog scale, and degree of satisfacton was valued. Ultrasound of the periumbilical region (access site) and treated inguinocrural region, to assess the degree of associated mor-bidity and recurrence was performed. Resultis: forty three single-incision TEP hernia repairs were performed in 29 patentis. They were bilateral in 14 patentis (48.2%), 88.4% were men, with mean age 40 years (16-72). T2 and indirect hernias comprised 72% of cases. The average length of stay was 0.56 days (0.5-1.5). The average intensity of pain at 12 hours and the 7th postoperative day was 4.1 pointis (range 1 to 8). The average degree of satisfacton with the cosmetic result was 9.5 (range 8-10). No major complicatons were recorded, and 4 cases (9.3%) had minor complicaton. The average operative tme was 38.3 minutes. No hernia recurrence was detected throug-hout the series with a mean follow up of 7.12 months. Conclusions: inguinal hernia repair by totally extraperitoneal single incision is feasible and safe to perform in selected small and reducible inguinal hernia, without additonal risk and no technical burden. These fin-dings add to the beneftis of lower abdominal wall trauma and improved cosmetic result.

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BACKGROUND: Diverse techniques have been described for pediatric inguinal hernia repair, based on extraperitoneal [1-4] and intraperitoneal [5-8] methodologies. In this video, we describe a novel technique to repair pediatric inguinal hernia using an Endo Close™ suturing device by percutaneous puncture with a single incision. METHODS: With a transumbilical approach, a 5-mm trocar is inserted for a 30° laparoscope. A 3-mm incision is made, and the Endo Close™ suturing device (Covidien, Minneapolis, MN, USA), with a 2-0 polypropylene suture retained by the stylet, is inserted perpendicularly to the skin. An extraperitoneal dissection is made on a side the inguinal ring and the needle of the device penetrates the peritoneum through the inferior border. Then, the stylet mechanism is pushed to free the lasso inside the cavity. At the same incision site, the needle of the Endo Close™ is inserted again, but an extraperitoneal dissection is made on the other side of the ring, ensuring that the needle penetrates at the same exit orifice. Now, the suture lasso is recovered and retracted to close the ring. Finally, the suture is extracted and knots are tied extracorporeally at the level of the skin. RESULTS: A total of 34 patients (20 females and 14 males) underwent surgery with this procedure. Operative time for unilateral repair was 10-15 and 25-30 min for the bilateral repair (29 unilateral/5 bilateral). The patients experienced minimal postoperative pain. The follow-up period was 12 months with no complications, no recurrence and without cases of postoperative hydrocele. There were no injuries to the structures as vessels or vas deferens, and the esthetic outcome was excellent. CONCLUSIONS: The technique presents a simple, safe and reliable method to repair inguinal hernias in children. The long-term results of this novel technique will be evaluated in future studies.

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Uniportal thoracic surgery is being continuously adopted by thoracic units around the world. Growing interest in the procedure is demonstrated by numerous workshops and training programs along every continent. The success of the technique lies in that it does not compromise oncologic principles and be carried out safely when proper training is acquired. For a surgeon to be able to perform a uniportal lobectomy successfully and safely proper steps must be ensuring. Multiple key maneuver and tricks are inherent to the uniportal approach. This article summarizes the equipment and key steps necessary to do a uniportal lobectomy.

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Objetivos: Determinar la tasa de curación objetiva/subjetiva y complicaciones del tratamiento de incontinencia urinaria de esfuerzo con banda suburetral transobutadora y single-incision sling. Métodos: Estudio retrospectivo de pacientes operadas de incontinencia urinaria de esfuerzo (hipermovilidad uretral) con banda suburetral transobturadora (n: 37) y single-incision sling (n: 44) entre enero-2012 y enero-2015. Si se asociaba corrección de prolapso de órganos pélvicos, se colocaba banda transobturadora (TVT-O/ TOT) con internación. Si no precisaba corregir prolapso, se insertaba single-incision sling ambulatoriamente. Las evaluaciones fueron al mes, 6 meses y 1 año. El contacto a 2 años fue telefónico. De 37 bandas transobturadoras completaron seguimiento 35 a 1 año y 26 a 2 años. De 44 single-incision sling, completaron seguimiento 42 a 1 año y 19 a 2 años. Resultados: La edad media para transobturadoras fue superior: 65±9,7 vs 58,2±11,3 (p=0,005). Transobturadoras demostraron más prolapso asociado: 87,8% vs 63,3% (p=0,042) y mayor tiempo quirúrgico (minutos): 81,07±31,27 vs 36,79±11,09 (p=0,000). Hubo mayor morbilidad en transobturadoras, sin diferencias significativas. La continencia al año fue: 80% transobturadoras vs 83% single-incision sling (p=0,706) y a 2 años: 84% vs 79% (p=0,623). Se encontraban satisfechas al año: 80% transobutradoras vs 85,7% single-incision sling (p=0,586) y a 2 años: 88,5% vs 78,9% (p=0,512). Conclusiones: Single-incision sling presentan tasas de éxito y satisfacción similares a bandas transobturadoras, con menor morbilidad, coste y tiempo operatorio, pudiendo ser de primera elección cuando no exista prolapso sintomático asociado.

Objectives: To determine objective and subjective cure rate and complications of stress urinary incontinence treatment with transobturator tape and single-incision sling. Methods: We performed a retrospective study including patients diagnosed of stress urinary incontinence, treated surgically either with transobturator tape (n: 37) or with single-incision sling (n: 44), between January 2012 and January 2015. If pelvic organ prolapse was associated, transobturator route was preferred requiring patient hospitalization. If this correction was not needed, we performed single-incision sling, as an ambulatory procedure. Follow up visits were scheduled at 1, 6, 12 months after surgery and a telephone interview at 24 months. Results: Mean age was higher in transobturator group: 65±9.7 vs 58.2±11.3 (p=0.005). A statistically significant difference between the two groups was found in operating time (minutes): 81.07±31.27 vs 36.79±1.09 (p=0.000) and pelvic prolapse associated: 87.8% vs 63.3% (p=0.042). Morbidity rate was higher in the transobturator group, but without significance. After 1 year follow-up, there were no significant differences between the transobturator and the single-incision groups regarding continence (80% vs 83%; p=0.706) and satisfaction (80% vs 85.7%; p=0.586). We found similar results at 24 months telephonic interview. Conclusions: Single-incision slings are comparable to transobturator tapes in 12 and 24 months success rates and satisfaction, with significantly less morbidity, costs and operating time, becoming first line option when no pelvic prolapse is associated.

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BACKGROUND: Single incision laparoscopic surgery (SILS) research has been limited. The aim of this study is to describe our technique and to evaluate the short term outcomes and efficacy of SILS Roux-en-Y gastric bypass (RYGB) in a selected group of patients in a single center. METHODS: From March 2012 to January 2013, a total of fourteen patients underwent SILS RYGB using a single vertical 2.5-3 cm intra-umbilical incision, 3-ports placed trans-fascially, and a liver suspension technique in Cleveland Clinic's Bariatric & Metabolic Institute, in Cleveland, Ohio, USA. Patient selection, short-term outcomes and technical issues were retrospectively viewed in this study. RESULTS: A total of 14 morbid obese patients (12 women and 2 men; mean age, 46 years). Mean operative time was 196 (range 131-265) min. Mean weight at surgery was 113 (range 91-135) kg. One patient required placement of one additional port (7 %). No conversions to conventional laparoscopic surgery (CLS) or open surgery was needed. The estimated blood loss was 40 (range 20-100) ml. In terms of pain control, the frequency of patient controlled analgesia had a mean use of 21 times in postoperative day 0 (POD), 37 times in POD1 and 13 times in POD2. Pain score (assessed by visual analogue scale) had a median score of 6.9 in POD0, 5.2 In POD1 and 3.8 in POD2. Weight loss was approximately 7.25 lb. (±4.5) after first postoperative visit, 28.9 lb. (±11.86) after 1 month and 45.4 lb. (±15.4) after 4 months. No patients required re-operation or readmission during the 90 days after surgery. CONCLUSION: Single incision is feasible, safe and reproducible technique used as an access to complex surgeries like gastric bypass in carefully selected patients. Results in short-term outcomes are comparable to those observed in literature. Some potential benefits include less postoperative pain, improved cosmesis, and patient satisfaction. Randomized trials involving larger patient series with a longer follow-up and larger cohort studies and/or systematic reviews will be necessary to assess the extent of the benefits and limitations of SILS in bariatric surgery.

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BACKGROUND: Single incision laparoscopic surgery has increased recently due to successful results, achieved in several procedures. The aim of the present work is to present the first case in which single incision laparoscopy is used for the drainage of an amoebic liver abscess. CLINICAL CASE: A 44-year-old man presented with intense right upper quadrant pain, generalised jaundice, tachycardia, fever, hepatomegaly and a positive Murphy's sign. Laboratory results revealed an increased plasma bilirubin, elevated alkaline phosphatase and transaminases, leucocytosis, negative viral panel for hepatitis, and positive antibodies against Entamoeba histolytica. On an abdominal computed tomography a 15 × 12.1 cm hypodense lesion was observed in the patient's liver, identified as an amoebic liver abscess. Analgesics and antibiotics were started and subsequently the patient was submitted to laparoscopic drainage of the abscess using a single port approach. Drainage and irrigation of the abscess was performed. Four days later the patient was discharged without complications. CONCLUSION: Management of amoebic liver abscess is focused on the elimination of the infectious agent and obliteration of the abscess cavity in order to prevent its complications, especially rupture. Laparoscopic surgery has proved to be a safe and effective way to manage this entity.

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BACKGROUND: Scarless/single-incision laparoscopic cholecystectomy (SILC) is a new procedure. It affords a superior cosmetic outcome when compared to conventional laparoscopic cholecystectomy. We examine the application of this technique using LigaSure via a clipless method. The present study looks at the experience of a single surgeon using this method with initial evaluation of the safety, feasibility, affordability, and benefits of this procedure. METHODS: Twenty-eight patients underwent transumbilical SILC at Doctors Hospital from January to December, 2014. The cohort included both emergency and elective patients. There was no difference in the preoperative work-up as indicated. To perform the operation, a 2-2.5-cm linear incision was made through the umbilicus and the single port platform utilized. A 10mm 30-degree laparoscope, a 5mm LigaSure and straight instruments were used to perform the laparoscopic cholecystectomy procedure. RESULTS: All patients except two were operated on successfully. Conversion was considered the placement of an additional epigastric/Right upper quadrant (RUQ) port. The conversion rate to standard LC was 7%. No patient was converted to open cholecystectomy. In the 28 successfully completed patients, the median duration of the operation was 38.5min and estimated operative blood loss was 24ml. Patients were commenced on liquid diet immediately on being fully conscious and after return to the ward with an estimated time of 6h. The mean postoperative hospital stay was 1.4 days. Follow-up visits were conducted for all patients at 2-weeks intervals and continued for 6 weeks after surgery where possible. Two patients developed wound infections. All patients were satisfied with the good cosmetic effect of the surgery. The total satisfaction rate was 100%. CONCLUSIONS: SILC is a safe and feasible technique for operating with scarless outcomes and reducing perioperative discomfort at the same time. The GelPOINTTM is a safe and feasible platform to be used. The procedure can be accomplished using regular instruments and laparoscope. Curved instruments and a bariatric length laparoscope may make the procedure easier and result in greater time saving. The addition of LigaSure™ decreases the complexity of the operation, decreases operative time and blood loss. The technique is economical in a resource-limited environment.

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Introducción: la cirugía por acceso mínimo ha continuado evolucionando en la última década en busca de una menor invasividad. Al respecto, la cirugía de incisión única ha aportado un punto intermedio de desarrollo de los procedimientos quirúrgicos mínimamente invasivos, para lograr un menor daño de la pared abdominal. Objetivo: caracterizar los niños intervenidos quirúrgicamente con esta técnica. Métodos: se realizó un estudio descriptivo, transversal y retrospectivo de 41 pacientes con apendicitis aguda o plastrón apendicular, tratados con apendicectomía videolaparoscópica por incisión única en el Servicio de Cirugía del Hospital Pediátrico Sur Docente de Santiago de Cuba, desde mayo del 2012 hasta abril del 2013. Resultados: la mayoría de los pacientes eran del grupo etario de 11-14 años (46,3 %) y del sexo femenino (61,0 %). De igual forma, predominaron la apendicitis no complicada (85,3 %), seguida de la apendicitis complicada (9,8 %), y el tiempo quirúrgico entre 10 y 20 minutos (65,9 %); en tanto, un elevado porcentaje (73,1) de los integrantes permaneció 24 horas o menos en la institución hospitalaria. Solo hubo 2 complicaciones y ningún paciente falleció. Conclusiones: la apendicectomía videolaparoscópica por orificio único en el niño, es una opción terapéutica factible en los hospitales pediátricos de Cuba, que conlleva pocas complicaciones y una estadía hospitalaria de corta duración.

Introduction: the minimal access surgery has continued to develop in the last decade searching the least invasiveness. In this respect, the single incision surgery has contributed with an intermediate point for the development of minimally invasive surgical procedures, to achieve a smaller damage to the abdominal wall. Objective: to characterize children surgically treated with this technique. Methods: a descriptive, cross sectional and retrospective study of 41 patients with acute appendicitis or appendicular plastron, treated with videolaparoscopic appendicectomy through single incision was carried out in the Surgery Service of the Southern Teaching Pediatric Hospital in Santiago de Cuba, from May, 2012 to April, 2013. Results: most of the patients were in the age group 11-14 year (46.3%) and of the female sex (61.0%). Likewise, the non complicated appendicitis (85.3%), followed by the complicated appendicitis (9.8%), and the surgical time between 10 and 20 minutes (65.9%) prevailed; as long as, a high percentage (73.1) of the patients remained 24 hours or less in the institution. There were only 2 complications and no death. Conclusions: the appendicectomy through single hole in the child is a feasible therapeutic option in the Cuban pediatric hospitals, which implies few complications and a short hospital stay.

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The gold standard for the surgical treatment of symptomatic cholelithiasis is conventional laparoscopic cholecystectomy (LC). Although it has been associated with a slightly higher incidence of bile duct injury (BDI) in comparison with open cholecystectomy (OC), LC is considered a very safe operation. Prevention of BDI should be routinely performed in every LC. Recent trends include the performance of cholecystectomy through a single incision and NOTES (Natural Orifice Transluminal Endoscopic Surgery). However, lack of evidence of clinical advantages prevents their widespread adoption, and more data are needed to assess whether their use is warranted.

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BACKGROUND: The transumbilical route began being clinically feasible with or without unique access devices. SETTING: The setting for this study was a private practice at Clínica Las Condes, Santiago, Chile. OBJECTIVE: The objective was to describe our experience performing a laparoscopic sleeve gastrectomy (LSG) via transumbilical route using a single-port access device in addition to standard laparoscopic instruments. METHOD: A prospective nonrandomized protocol was applied to patients fulfilling the following inclusion criteria: to have been medically indicated for an LSG, to have a body mass index (BMI) of less than or equal to 40 kg/m2, and the distance between the xiphoid appendix and umbilicus should be less than 22 cm. All patients were female with a median (p50) age of 34.5 (ranging from 21 to 57) years, a median weight of 92 (ranging from 82.5 to 113) kg, and a median BMI of 35.1 (ranging from 30.5 to 40) kg/m2. The device insertion technique, the gastrectomy, and postoperative management are described. RESULTS: LSG via transumbilical route was successfully carried out in 19 of the 20 patients in whom the procedure was performed; one patient had to be converted to a conventional laparoscopic procedure. Mean operating time was 127 (ranging from 90 to 170) min. On the second postoperative day, all patients were assessed through an upper gastrointestinal barium-contrasted radiological series. There was neither morbidity nor mortality in this group. Excess weight loss at 25 months after surgery was 114 %. CONCLUSIONS: Single-port LSG can be successfully performed in selected obese patients with a BMI of less than 40 kg/m2 using traditional laparoscopic instruments. The technique allows performing a safe and effective vertical gastrectomy.

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El último paso hacia el menor grado de invasión después del surgimiento de la cirugía laparoscópica ocurre cuando los cirujanos del mundo se inician en técnicas emergentes, que entre otras, utilizan el ombligo como único puerto de entrada al abdomen quedando camufladas en la cicatriz umbilical, Presentamos la experiencia inicial de nuestro grupo, entre julio de 2009 hasta enero 2011 en variados procedimientos laparoscópicos por monopuerto con el uso del dispositivo SILS® port. Fueron intervenidos 175 pacientes, 163 adultos (93%), 12 niños (7%), todos abordados por un sólo puerto y a través del SILS® port. Se realizaron 102 colecistectomías (58%), 37 apendicectomías (21%), 8 histerectomías (4,6%), 7 ooforectomías (4%), 7 biopsias hepáticas (4%), 6 liberación de bridas y adherencias (3,4%), 4 salpingoclasias (2,3%), 2 esplenectomías (1%), 1 miotomía de Heller con funduplicatura de Dor (0,6%) 1 hiatoplasia esofágica (0.6%). Los procedimientos complejos se efectuaron después de realizados los primeros 50 casos. Todos los procedimientos en niños se completaron por incisión única de manera satisfactoria. En los adultos, 6 requirieron un puerto un adicional, en un paciente fue necesario dos puertos con posterior conversión a laparotomía (hiatoplastia esofágica). Los tiempos promedios resultaron para colecistectomías 42 min (12-72 min), apendicectomía 37,5 min (13-62 min), histerectomías 95 min (65-125 min), ooforectomías 32,5 min (15-50 min), salpingoclasia 18,5 min (12-25 min), miotomía de Heller 182 min, hiatoplastia esofágica 155 min. La cirugía laparoscópica por incisión única es una técnica emergente en franco desarrollo, en niños ha demostrado ser un procedimiento seguro y eficaz, al igual que en adultos. El desarrollo y perfeccionamiento del instrumento hará ampliar el horizonte y abarcar cirugía más complejas y considerarse como alternativa a la cirugía laparoscópica tradicional otorgando el beneficio de menos dolor y mejores resultados estéticos...

We present the initial experience of our work group, between July 2009 and January 2011 in several laparoscopic procedures by monoport with device SILS port. Patients and method: 175 patients underwent surgery, 163 adults (93%), 12 children (7%), all boarded through a single port with SILS port device, 102 cholecystectomies were made (58%), 37 appendectomies (21%) 8 hysterectomies (4.6%), 7 oophorectomies (4%). 7 hepatic biopsies (4%), 6 liberation of bridles and adhesions (3,4%), 4 segmental resection of fallopian tube (2.3%), 2 splenectomies (1%), 1 Heller miotomy with Dor funduplication (0.6%) and 1 hiatal repair (0.6%). The complex procedures were carried out alter made the first 50 cases. All the procedures in children were completed through unique incision. In the adults. 6 required an additional port; in a patient was necessary two port with later conversion to laparotomy (hiatal hernia repair). The operative times averages were for cholecystectomies 42 min (12-72 min), Appendectomies 37,5 min. (13-62 min). Hysterectomies 95 min (65-125 min), Oophorectomies 32.5 min (15-50 min), segmental resection of fallopian tube 18.5 min (12-25 min), Heller miotomy 182 min. Hiatal hernia repair 155 min. The laparoscopic surgery through unique incision is an emergent technique in frank development, in children has demonstrated to be a safe and effective procedure, like in adults. The development and improvement of instruments will make extend the horizon and include more complex surgeries and consider themselves like alternative to the traditional laparoscopic surgery, granting the benefit of less pain and better aesthetic results. The development of skills and abilities to move in a NEW ATMOSPHERE represent a main concern.

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