Possible technical aspects involved in the development of GERD after sleeve gastrectomy: Surgical technique considerations.

Sleeve gastrectomy (SG) is the most common bariatric surgery worldwide and has shown to cause de novo or worsen symptoms of gastroesophageal reflux disease (GERD). Esophageal motility and physiology studies are mandatory in bariatric and foregut centers. The predisposing factors in post-SG patients are disruption of His angle, resection of gastric fold and gastric fundus, increased gastric pressure, resection of the gastric antrum, cutting of the sling fibers and pyloric spasm. There are symptomatic complications due to sleeve morphology as torsion, incisura angularis stenosis, kinking and dilated fundus. In this article, we present recommendations, surgical technique and patient selection flow diagram for SG and avoid de novo or worsening GERD.

Laparoscopic surgery in 3D improves results and surgeon convenience in sleeve gastrectomy for morbid obesity.

PURPOSE: Advanced laparoscopic procedures are still challenging. One critical issue is the lack of stereoscopic vision. The aim of this surgical study is to evaluate whether 3D vision offers any advantages for surgical performance over 2D vision during sleeve gastrectomy for morbid obesity using a laparoscopic system that allows changing between 2D and 3D optics. METHODS: A total of 78 patients were analyzed, with 37 in the 2D group and 41 in the 3D group. Performance time, hospital stay, complications, and early outcomes were collected. To assess the quality of the 2D and 3D techniques, visual analog scales from 0 to 10 were designed, and image quality, depth of field, precision in performing tasks, and general ergonomics were measured. RESULTS: According to the vision system used, the mean duration of surgery was 85 ± 16.8 min for patients operated on with the 2D system and 69 ± 16.9 min for those operated on with the 3D system. There were no significant differences between the overall percentages of complications according to the type of vision used. However, postoperative complications were more severe in the 2D laparoscopy group. The average length of stay was shorter for patients in the 3D group. Regarding the differences perceived by the surgeon, the depth of field and the precision of tasks were better in the 3D vision group. CONCLUSION: The 3D system provided greater depth perception and precision in more complex tasks, enabling safer surgery. This led to a reduction in the operative time and hospital stay. Moreover, the severity of complications was less.

Tratamiento endoscópico de una fístula aguda tras gastrectomía vertical laparoscópica / Endoscopic treatment of an acute fistula after laparoscopic sleeve gastrectomy / Tratamento endoscópico de uma fístula aguda após gastrectomia vertical laparoscópica

La fístula gástrica aguda es una de las principales complicaciones vinculadas a la gastrectomía vertical laparoscópica (GVL). Existen múltiples opciones terapéuticas para su resolución, siendo el tratamiento endoscópico mediante colocación de clips o stents uno de los más importantes. La aplicabilidad de cada método va a depender del tipo de fístula y del estado del paciente. Presentamos el caso de una mujer de 35 años, que desarrolla una fístula aguda posterior a una GVL. Se realiza tratamiento endoscópico con colocaciónn del sistema "over-the-scope clip" (Ovesco®) a nivel del orificio fistuloso, con posterior colocaciónn de stent metálico auto expandible.

Acute gastric fistula is one of the main complications associated with laparoscopic vertical gastrectomy (LVG). There are multiple therapeutic options for its resolution, being endoscopic treatment by placing clips or stents one of the most important. The applicability of each method will depend on the type of fistula and the patient's condition. We present the case of a 35-year-old woman who developed an acute fistula after LGV. Endoscopic treatment is performed with placement of the over-the-scope clip system (Ovesco®) at the level of the fistulous orifice, with subsequent placement of a self-expanding metal stent.

A fístula gástrica aguda é uma das principais complicações associadas à gastrectomia vertical laparoscópica (GVL). Existem múltiplas opções terapêuticas para a sua resolução, sendo o tratamento endoscópico com colocação de clipes ou stents uma das mais importantes. A aplicabilidade de cada método dependerá do tipo de fístula e do estado do paciente. Apresentamos o caso de uma mulher de 35 anos que apresentou uma fístula aguda após GVL. O tratamento endoscópico foi realizado com a colocação do sistema de clipe over-the-scope (Ovesco®) no nível do orifício fistuloso, com posterior colocação de stent metálico autoexpansível.

Surgical Treatment of Obesity. Special Mention to Roux-en-Y Gastric Bypass and Vertical Gastrectomy.

Introduction: The prevalence of obesity has increased exponentially in recent decades, being one of the diseases that most affects global health. It is a chronic disease associated with multiple comorbidities, which lead to a decrease in life expectancy and quality of life. It requires a multidisciplinary approach by a specialized medical team. Obesity can be treated with conservative or with surgical treatments that will depend on the characteristics of the patient. Objective/Methodology: The referenced surgery can be performed using different surgical techniques that are analyzed in the present work through an exhaustive narrative bibliographic review in the PubMed and Cochrane databases, as well as in UpToDate. Results: Currently, those most used are restrictive techniques, specifically vertical gastrectomy and mixed techniques, with gastric bypass being the "gold standard". Conclusions: In order to choose one technique or another, the characteristics of each patient and the experience of the surgical team must be taken into account.

[Influence of the lockdown due to COVID-19 on weight-loss results during the first year after sleeve gastrectomy]. / Influencia del confinamiento por COVID-19 en los resultados ponderales durante el primer año tras la gastrectomía vertical.

INTRODUCTION: COVID-19 pandemic has lead to lockdown of population in many countries. In Spain, the state of alarm was established from March 15 to June 20, 2020. Usually this fact decreased people's mobility and physical activity, in addition to producing or exacerbating psychological disorders. Our aim was to determine the influence that this condition had over the short-term ponderal results of patients undergoing laparoscopic vertical gastrectomy from May 2019 to May 2020. METHODS: Case-control study for comparing the percentage of excess weight lost (%EWL) and the percentage of total weight lost (%TWL) of patients that underwent a VG during the last year, so they were affected by lockdown in April and part of March 2020 (group 1), to the %EWL and %TWL of a control group (group 2), obtained from our previous series. RESULTS: The mean %EWL in group 1 is 47,37 ± 18,59 and in group 2 is 51,13 ± 17,59, being p = 0,438. Meanwhile, the mean %TWL in group 1 is 21,14 ± 8,17 and in group 2 is 24,67 ± 8,01, with p = 0,115. CONCLUSIONS: Population lockdown by COVID-19 did not get worse short-term results of vertical gastrectomy. More studies with a larger number of patients are necessary to draw firm conclusions.

Influencia del confinamiento por COVID-19 en los resultados ponderales durante el primer año tras la gastrectomía vertical / Influence of the lockdown due to COVID-19 on weight-loss results during the first year after sleeve gastrectomy

Introducción: La pandemia por COVID-19ha obligado al confinamiento de la población en muchos países. En España, el estado de alarma se estableció desde el 15 de marzo al 20 de junio del 2020. Este hecho, por lo general, disminuyó la movilidad y la actividad física de las personas, además de producir o exacerbar alteraciones psicológicas. Nuestro objetivo es analizar la influencia que esta situación ha ejercido sobre los resultados ponderales a corto plazo de los pacientes tratados mediante una gastrectomía vertical laparoscópica entre mayo del 2019 y mayo del 2020. Métodos: Estudio de casos y controles donde se compararon el porcentaje de exceso de peso perdido (%EWL) y el porcentaje de peso total perdido (%TWL) de los pacientes intervenidos en el último año y a los que ha afectado el confinamiento durante el mes de abril y parte de marzo del 2020 (grupo 1; n=20), con el de un grupo control (grupo 2; n=40) de nuestra casuística previa. Resultados: El %EWL medio en el grupo 1 es de 47,37±18,59 y en el grupo 2 es de 51,13±17,59, siendo la p=0,438. Por su parte, el %TWL medio en el grupo 1 es de 21,14±8,17 mientras que en el grupo 2 es de 24,67±8,01, resultando la p=0,115. Conclusiones: El confinamiento de la población por COVID-19 no empeoró los resultados ponderales a corto plazo de la gastrectomía vertical. Son necesarios más estudios con un mayor número de pacientes para obtener conclusiones más sólidas. (AU)

Introduction: COVID-19 pandemic has lead to lockdown of population in many countries. In Spain, the state of alarm was established from March 15 to June 20, 2020. Usually this fact decreased people's mobility and physical activity, in addition to producing or exacerbating psychological disorders. Our aim was to determine the influence that this condition had over the short-term ponderal results of patients undergoing laparoscopic vertical gastrectomy from May 2019 to May 2020. Methods: Case-control study for comparing the percentage of excess weight lost (%EWL) and the percentage of total weight lost (%TWL) of patients that underwent a VG during the last year, so they were affected by lockdown in April and part of March 2020 (group 1), to the %EWL and %TWL of a control group (group 2), obtained from our previous series. Results: The mean %EWL in group 1 is 47,37±18,59 and in group 2 is 51,13±17,59, being p=0,438. Meanwhile, the mean %TWL in group 1 is 21,14±8,17 and in group 2 is 24,67±8,01, with p=0,115. Conclusions: Population lockdown by COVID-19 did not get worse short-term results of vertical gastrectomy. More studies with a larger number of patients are necessary to draw firm conclusions. (AU)

Influence of the lockdown due to COVID-19 on weight-loss results during the first year after sleeve gastrectomy.

INTRODUCTION: COVID-19 pandemic has lead to lockdown of population in many countries. In Spain, the state of alarm was established from March 15 to June 20, 2020. Usually this fact decreased people's mobility and physical activity, in addition to producing or exacerbating psychological disorders. Our aim was to determine the influence that this condition had over the short-term ponderal results of patients undergoing laparoscopic vertical gastrectomy from May 2019 to May 2020. METHODS: Case-control study for comparing the percentage of excess weight lost (%EWL) and the percentage of total weight lost (%TWL) of patients that underwent a VG during the last year, so they were affected by lockdown in April and part of March 2020 (group 1), to the %EWL and %TWL of a control group (group 2), obtained from our previous series. RESULTS: The mean %EWL in group 1 is 47.37±18.59 and in group 2 is 51.13±17.59, being P=.438. Meanwhile, the mean %TWL in group 1 is 21.14±8.17 and in group 2 is 24.67±8.01, with P=.115. CONCLUSIONS: Population lockdown by COVID-19 did not get worse short-term results of vertical gastrectomy. More studies with a larger number of patients are necessary to draw firm conclusions.

Preoperative intragastric balloon in morbid obesity is unable to decrease early postoperative morbidity of bariatric surgery (sleeve gastrectomy and gastric bypass): a clinical assay.

INTRODUCTION: There are few studies that investigate the usefulness of the preoperative intragastric balloon (IGB). This study will evaluate if pre-surgical weight loss with IGB reduces morbidity and mortality after surgery. METHOD: Prospective randomised study of patients with morbid obesity treated with gastric bypass or vertical gastrectomy, with two arms: the balloon arm (B-arm), where an IGB was inserted within the 6 months before surgery, and the control arm (C-arm). RESULTS: The study included 66 patients: 65.6% women, 69.6% with bypass. Age: 43 years (SD 10.2) B-arm and 42.6 years (SD 9.2) in the C-arm. We found 34.4% therapeutic failures in IGB. The mean body weight loss, %EWL and BMI reduction before surgery was 16.2 kg (SD 9.84) B-arm versus 4.7 (SD 8.70) in the C-arm, 23.6% versus 4.7% (p < 0.001) and 6.04 versus 1 (p < 0.001), respectively. The hospital stay was 7 days (p25-75: 5-8) B-arm and 7 days (p25-75: 5-9) in the C-arm (p = 0.937). Post-surgical morbidity with IGB was 25% versus 29.5% in the C-arm, p = 0.689. The number needed to treat (NNT) to prevent of post-surgical morbidity was 23 patients. The B-arm presented 54.5% moderate-severe post-surgical adverse events (12.5%) versus 82.6% in the C-arm (23.5%), p = 0.111. The cost of placing a balloon was more than 4000 Euros each. CONCLUSIONS: The preoperative balloon does not achieve a reduction in the post-surgical morbidity, nor does it reduce the hospital stay or rate of re-operations. The balloon achieves a higher weight loss result when compared to a diet programme, its added cost must also be given due consideration. TRAIL REGISTRY: This study has been registered on ClinicalTrials.gov with the Identifier: NCT01998243 (November 28, 2013).

Consecuencias clínicas posgastrectomía vertical tubular: enfermedad por reflujo gastroesofágico / Clinical consequences post tubular vertical gastrectomy: gastroesophageal reflux disease

Varias publicaciones informan un aumento en la tasa de enfermedad por reflujo gastroesofágico (ERGE) después de la gastrectomía vertical tubular (GVT) o en manga a pesar que no existe aún consenso al respecto. El objetivo de este artículo es mostrar nuestra propia experiencia y de la literatura respecto a los aspectos clínicos de la enfermedad por ERGE después de la gastrectomía vertical tubular. Del análisis de nuestros resultados y de los datos de la literatura, los estudios que evalúan la prevalencia de la enfermedad de reflujo gastroesofágico posoperatorio muestran que la GVT puede provocar síntomas de ERGE de novo o empeoramiento de la ERGE preexistente.

Several publications report an increase in the rate of gastroesophageal reflux disease (GERD) after surgery, although there is still no consensus on this. The aim of this article is to show our own experience and literature regarding the clinical aspects of GERD disease after tubular vertical gastrectomy. From the analysis of our results and data from the literature, studies evaluating the prevalence of postoperative gastro-oesophageal reflux disease show that GVT can cause symptoms of de novo GERD or worsening of pre-existing GERD.

Consecuencias fisiopatológicas y anatómicas posgastrectomía vertical tubular como posibles causas de enfermedad por reflujo gastroesofágico / Physiopathological and anatomical consequences post tubular vertical gastrectomy as possible causes of gastro-esophageal reflux disease

Resumen La gastrectomía vertical tubular (GVT) o en manga ha sido validada como un procedimiento bariátrico efectivo para tratar pacientes con obesidad mórbida. Se han descrito modificaciones anatómicas y fisiopatológicas en la unión esofagogástrica que pueden estar relacionados con patogénesis de la enfermedad por reflujo gastroesofágico. En este artículo se muestran los resultados de nuestra propia experiencia y de la literatura respecto de los cambios en la función esofágica y gástrica, la prueba de reflujo ácido, los estudios endoscópicos y radiológicos en pacientes sometidos a GVT. Se concluye que la GVT puede presentar cambios anatómicos y fisiopatológicos que se asocian a la aparición de enfermedad por reflujo gastroesofágico.

Tubular vertical gastrectomy (GVT) or sleeve gastrectomy has been validated as an effective bariatric procedure to treat patients with morbid obesity. Anatomical and pathophysiological changes have been described in the esophagogastric junction that may be related to the pathogenesis of gastroesophageal reflux disease. This article shows the results of our own experience and the literature regarding changes in esophageal and gastric function, the acid reflux test, endoscopic and radiological studies in patients undergoing GVT. It is concluded that GVT can present anatomical and physiopathological changes that are associated with the appearance of gastroesophageal reflux disease.

Hallazgos histológicos gástricos en obesos mórbidos sometidos a gastrectomía vertical laparoscópica / Pathological findings in resected gastric segments after laparoscopic sleeve gastrectomy

Background: Laparoscopic sleeve gastrectomy (LSG) is used for the treatment of obesity and may provide gastric tissue for pathological studies. The association of obesity with dyslipidemias, diabetes and cardiovascular disease is of common knowledge. However its association with gastrointestinal diseases and gastritis is less well known. Aim: To analyze the pathological findings of the resected gastric segment during LSG. Material and Methods: Two hundred fifty patients aged 37 +/- 12 years and with a body mass index of 37.7 +/- 3.1 kg/m² (189 women), subjected to LSG, were included in a prospective protocol. Resected gastric segments were sent for a pathological study. Results: A gastric disease was identified in 220 (88 percent) cases. Chronic follicular gastritis was diagnosed in 117 patients (46.8 percent), chronic superficial gastritis in 76 (30.4 percent), chronic nonspecific gastritis in 38 (15.2 percent), intestinal metaplasia in 14 percent (5.6 percent) and in one case (0.4 percent) an early gastric carcinoma. Helicobacterpylori was present in 34 (13.6 percent) patients. Conclusions: This study shows a high prevalence of histopathological gastric lesions detected after the LSG, reaffirming the need for detection of these lesions before surgery.

Introducción: La gastrectomía vertical laparoscópica (GVL) es un procedimiento quirúrgico efectivo en el tratamiento de la obesidad. La obesidad está asociada con algunas comorbilidades como diabetes, dislipidemia y enfermedad cardiovascular, pero también se ha demostrado que tiene efectos potenciales sobre la gastritis y diversas enfermedades gastrointestinales. El objetivo de este estudio es determinar los hallazgos histológicos del segmento gástrico resecado durante la GVL realizada en una serie de pacientes obesos. Material y Método: Entre enero de 2006 y diciembre de 2008, 250 pacientes consecutivos a los que se realizó GVL, fueron incluídos en un protocolo prospectivo. La serie consistió en 189 mujeres (75,6 por ciento) y 61 hombres (24,4 por ciento), con edad promedio de 37,5 +/- 12,1 años. El Índice de Masa Corporal (IMC) promedio fue 37,7 +/- 3,1 kg/m². Resultados: Los resultados histológicos identificaron 220 casos (88 por ciento) con patología gástrica. Se diagnosticó gastritis crónica folicular en 117 pacientes (46,8 por ciento), gastritis crónica superficial en 76 (30,4 por ciento), gastritis crónica inespecífica en 38 (15,2 por ciento), metaplasia intestinal en 14 percent (5,6 por ciento) y en un caso (0,4 por ciento) adenocarcinoma in situ. Helicobacter pylori (HP) estuvo presente en 34 pacientes (13,6 por ciento). Conclusiones: Los hallazgos de este estudio, muestran una prevalencia incrementada de lesiones gástricas histopatológicas detectadas posterior a la GVL, reafirmando la necesidad de una detección de estas lesiones antes de la cirugía.

Cirugía revisional por estenosis post gastrectomía vertical laparoscópica / Revisional surgery for stenosis following laparoscopic sleeve gastrectomy

Introducción: La cirugía bariátrica revisional se realiza para modificar o reparar alguno de los tipos de cirugía para perder peso, entre ellos la gastrectomía vertical laparoscópica (GVL). La revisión de procedimientos bariátricos se hace necesaria entre el 10 al 25 por ciento de los pacientes, ya sea por baja de peso insuficiente o por complicaciones, siendo la estenosis una de ellas. Posterior a una GVL, el bypass gástrico en Y de Roux (BPG) es la intervención quirúrgica más requerida para la conversión. El objetivo de este estudio fue describir una serie de 5 pacientes que tuvieron cirugía revisional por estenosis posterior a una GVL. Material y Métodos: Entre enero de 2006 y marzo de 2013, en 770 pacientes consecutivos se realizó GVL. Los pacientes fueron incluidos en un protocolo prospectivo. Cinco pacientes tuvieron cirugía revisional con conversión a BPG por estenosis posterior a la GVL. Tres pacientes fueron operados de GVL en nuestro hospital, los otros 2 provenían de otros centros hospitalarios. Resultados: En los 5 pacientes con cirugía revisional la edad promedio fue 39,8 +/- 15,7 años. Cuatro pacientes fueron mujeres (80 por ciento). El promedio IMC antes de GVL fue 37,0 +/- 2,1 kg/m² y del IMC antes del BPG fue 29,4 +/- 5,4 kg/m². El BPG fue laparoscópico en 3 casos y abierto en 2. No hubo complicaciones, ni mortalidad. Conclusiones: La conversión a bypass gástrico en Y de Roux es un tratamiento efectivo para la estenosis posterior a una GVL.

Introduction: Revisional bariatric surgery is performed to alter or repair one of the many types of weight loss surgery, including laparoscopic sleeve gastrectomy (LSG). The revision of bariatric procedures is required between 10 to 25% of patients operated, either by insufficient weight loss or complications, including stenosis. After a LSG, the Roux- en- Y gastric bypass (RYGBP) is the most requested surgery for conversion. The aim of this study was to describe a series of 5 patients who had revisional surgery for stenosis following LSG. Material and Method: Between January 2006 and March 2013, in 770 consecutive patients was performed LSG. Patients were included in a prospective protocol. Five patients had revisional surgery with conversion to RYGBP for stenosis following LSG. In three patients the initial LSG was performed in our hospital, the other 2 were from other hospitals. Results: In the 5 patients with revisional surgery mean age was 39.8 ± 15.7 years. Four patients were women (80%). The average BMI before LSG was 37.0 ± 2.1 kg/m2 and BMI before RYGBP was 29.4 ± 5.4 kg/m2. The RYGBP was laparoscopic in 3 cases and opened in two. There were no complications, and no mortality. Conclusions: Conversion to RYGBP is an effective treatment for stenosis following a LSG.

Laparoscopic sleeve gastrectomy compared with other bariatric surgical procedures: a systematic review of randomized trials.

BACKGROUND: The evidence regarding the effectiveness and safety of laparoscopic sleeve gastrectomy (LSG) has been mostly based on the data derived from nonrandomized studies. The objective of this study was to evaluate the outcomes of LSG and to present an up-to-date review of the available evidence based on the recent publications of new randomized, controlled trials (RCTs). METHODS: PubMed, Embase, and Cochrane Central Register of Controlled Trials were searched until November 2012 for RCTs on LSG. RESULTS: Fifteen RCTs, comprising a total of 1191 patients, of whom 795 had undergone LSG, were included. No patient required conversion to open surgery for LSG, laparoscopic gastric bypass (LGB), or laparoscopic adjustable gastric banding (LAGB) procedures. There were no deaths, and the complication rate was 12.1% (range 10%-13.2%) in the LSG group versus 20.9% (range 10%-26.4%) in the LGB group, and 0% in the LAGB group (only 1 RCT). The complications included leakage, bleeding, stricture, and reoperation that occurred with rates of .9%, 3.3%, 0%, and 2.1%, respectively, in the LSG group and rates of 0%, 5%, 0%, and 4%, respectively, in the LGB group. The average operating time in the LSG group was 106.5 minutes versus 132.3 minutes in the LGB group. The percentage of excess weight loss (%EWL) ranged from 49% to 81% in the LSG group, from 62.1% to 94.4% in the LGB group, and from 28.7% to 48% in the LAGB group, with a follow-up ranging from 6 months to 3 years. The type 2 diabetes mellitus (T2DM) remission rate ranged from 26.5% to 75% in the LSG group and from 42% to 93% in the LGB group. CONCLUSIONS: LSG is a well-tolerated, feasible procedure with a relatively short operating time. Its effectiveness in terms of weight loss is confirmed for short-term follow-up (≤ 3 years). The role of LSG in the treatment of T2DM requires further investigation.

Manga gástrica laparoscópica. Experiencia en 730 casos. Seguimiento a 5 años / Laparoscopic gastric sleeve. Experience in 730 cases. 5 years follow up

La obesidad se ha convertido en la epidemia del siglo XXI, incrementado las patologías asociadas a la misma como: diabetes mellitus tipo 2, síndrome metabólico, hipertensión arterial, enfermedades cardiovasculares, entre otras, afectando negativamente la calidad y expectativa de vida. La manga gástrica ha ganado popularidad en el tratamiento quirúrgico primario de la obesidad. Pacientes y métodos: Se realizó un estudio prospectivo con 730 casos sometidos a manga gástrica en el Instituto Clínico La Florida años 2006 - 2012. Se analizó: sexo, edad, índice de masa corporal, porcentaje de exceso de peso perdido, tiempo quirúrgico, complicaciones, y respuesta postoperatoria de pacientes diabéticos 2 e hipertensos. Resultados: Femenino 533 (73%), masculino 197 (27%), edad promedio 40,1 años, tiempo quirúrgico 79 min, índice masa corporal promedio pre-operatorio 40,7; promedio postoperatorio 28,6 en 60 meses. Promedio pérdida del exceso de peso 72,1 % en 60 meses; complicaciones: disrupción de la línea de engrapado 1,09 %, Sangrado 1,2 %, neumonía 0,5 %, deshidratación 1,3 %, infección herida 5 casos (0,6%), estenosis 0 %, obstrucción 0 %, conversiones: 0 %, mortalidad: 0 %. De 42 pacientes diabéticos remisión en 34 (81 %) y mejoría en 8 (19 %) y 112 pacientes hipertensos remisión en 70 (62,5 %), mejoría 28 (25 %) y sin respuesta 14 (12,5 %). Conclusión: Se concluye que la manga gástrica es una técnica segura y efectiva para el tratamiento primario de la obesidad y la resolución de comorbilidades como la diabetes 2 e hipertensión arterial(AU)

Obesity has become the epidemic of the 21st century, increasing pathologies associated with it such as diabetes mellitus type 2, metabolic syndrome, hypertension, and cardiovascular diseases, among others, negatively affecting the quality of life and life expectancy. Sleeve gastrectomy has gained popularity in the primarily surgical treatment of obesity. Patients and methods: A prospective study of 730 cases that underwent sleeve gastrectomy was performed at the Instituto Clínico la Florida from 2006 to 2012. Gender, age, corporal mass index, percentage of excess of weight loss, duration of surgery, complications, postoperative reaction of diabetes-2 and hypertensive patients were analyzed. Results: 533 females (73%), 197 males (27%), Age Average: 40.1 years, surgery duration: 79 minutes; corporal mass index: preoperative average: 40.7; post-operative average: 28.6 in 60 months. Average weight excess loss: 72.1 % in 60 months. Complications: disruption of staple line 1.09 %, bleeding: 1.2%, pneumonia: 0.5 %, dehydration: 1.3 %, wound infection 5 cases (0.6 %), stenosis 0 %, obstruction 0 %, conversions: 0 %, mortality: 0 %. In 42 diabetic patients, 34 were in remission (81 %), 8 showed improvement (19 %). In 112 hypertensive patients, 70 were in remission (62.5 %), 28 showed improvement (25 %) and 14 showed no results (12.5 %). Conclusion: It is concluded that sleeve gastrectomy is a safe and effective technique for the primary treatment of obesity and the resolution of comorbidities like diabetes-2 and hypertension(AU)

By pass gástrico laparoscópico como cirugía de rescate posterior a procedimientos restrictivos fallidos / Laparoscopic gastric bypass as rescue surgery when restrictive procedures failed

Objetivo:Exponer la experiencia en la cirugía de conversión a bypass gástrico por laparoscopia posterior a procedimientos restrictivos fallidos,en el servicio de Cirugía 2 del Hospital Universitario de Caracas.Pacientes y métodos:Se realizó un estudio retrospectivo y descriptivo incluyendo los pacientes a quienes se les realizó bypass gástrico por laparoscopia como cirugía de rescate posterior a un procedimiento bariátrico restrictivo fallido, en el período comprendido entre enero 2007 y diciembre 2010. Resultados:Entre 2007 y 2010 se intervinieron 12 pacientes con edad promedio de 46,4 años y predominio del sexo femenino (58 %). A 8 se les había colocado una banda gástrica ajustable por laparoscopia ya 4 se les había realizado una gastrectomía vertical laparoscópica. El peso promedio antes de la primera cirugía fue de 125,7 Kg y el IMC 46 kg/m2. Todos los pacientes presentaron pérdida inadecuada de peso con un promedio de 9,8% del exceso de peso perdido, motivo por el cual se decidió realizar cirugía de revisión y bypass gástrico por laparoscopia. La media de tiempo entre el primer procedimiento y el bypass gástrico fuede 47 meses. Sólo 1 paciente presentó complicaciones poso peratorias y se resolvió medicamente. Posterior a 6 meses la pérdida del exceso depeso fue 53,3% y después de un año 70,4% con un IMC de 29,6 kg/m2. Conclusión:El bypass gástrico por laparoscopia es seguro y efectivo como cirugía de rescate luego de procedimientos restrictivos fallido(AU)

Objective: To expose the experience in the conversion to laparoscopic gastric bypass when restrictive procedures failed, at Hospital Universitario de Caracas. Surgery II service. Patients and methods: A retrospective and descriptive study was conducted including patients who under going gastric bypass surgery as rescue procedure after a bariatricrestrictive procedure failed, from January 2007 toDecember 2010. Results: 12 patients with median age of46.4 years and predominance of female (58%) involved.Eight had placed an adjustable gastric band surgery and4 had made a laparoscopic vertical gastrectomy. The aver-age weight before the first surgery was 125,7 Kg and BMI46 kg/m2. All the patients had inadequate weight losswith an average of 9.8% of excess weight lost, reason bywhich it was decided to review and performe laparoscopygastric bypass. The average time from the first procedurewas 47 months. Only 1 patient developed postoperativecomplications and resolved medically. After 6 months, the loss of excess weight was 53.3% and after a year 70.4 percent with a BMI of 29.6 kg/m2. Conclusion: Gastric bypass surgery is safe and effective as surgery of rescue after failed restrictive procedures(AU)

Manometría esofágica en pacientes sometidas a gastrectomía vertical laparoscópica: servicio de cirugía dos / Esophageal manometry in patients undergoing laparoscopic vertical gastrectomy: servicio de cirugia dos

Evaluar mediante manometría, la motilidad esofágica y las características del esfinter esofágico inferior, en pacientes obesos antes y después de ser sometidos a gastrectomía vertical laparoscópica (GVL). Estudio descriptivo, correlacional y prospectivo comparando los hallazgos en la manometria esofágica en el postoperatorio respecto al preoperatorio en 12 pacientes sometidos a GVL. Unidad de Cirugía Endoscópica del Servicio de Cirugía Dos del Hospital Universitario de Caracas. No hubo diferencias estadísticamente significativa en los valores de la manometría esofágica, antes y después del procedimiento, para longitud total e intraabdominal del esfinter esofágico interior (EEI) (p=0,76 y p=0,43 respectivamente), presion de reposo del EEI (p=0,37) y amplitud esofágica distal (p=0,65). Se observó una disminución estadísticamente significativa, en los valores postoperatorios del porcentaje de relación del EEI (p=0.04) y del porcentaje de contracciones peristálticas (p=0.03). Las alteraciones manométricas evidenciadas pueden predisponer o incrementar la enfermedad por reflujo gastroesofágico (ERGE), ya que implican un manor vaciamiento esofágico. Sin embargo el mecanismo por el cual los individuos obesos sometidos a GVL. Desarrollan ERGE es complejo y multifactorial, ya que no obedece únicamente a posibles alteraciones del EEI, sino que esta asociado a otros factores como peristalsis esofágica, vaciamiento gástrico y presión intragástrica.

Assess by manometry esophageal motility and the characteristic of the lower esophageal sphincter (LES) in obese patients before and alter laparoscopic vertical gastrectomy (LVG). Descriptive, correlational and prospective investigation, comparing findings in the esophageal manometry in the postoperative compared to the preoperative in 12 patients undergoing LVG. Unit of Endoscopic Surgery of the Hospital Universitario de Caracas, Servicio de Cirugia Dos. There was no statistically significant difference in the values, of esophageal manometry before and alter the procedure, for total and intra-abdominal length of the LES (p=0.76 and p-0.43 respectively), resting LES pressure (p=0.37) and distal esophageal amplitude (p=0,65). There was a statististically significant decrease in postoperative values of the relaxation percentage of the LES (p=0.04) and percentage of peristaltic contractions (p=0.03). Manometric abnormalities that were detected in this study may predispose or increase gastroesophageal reflux disease (GERD), since they imply a lower esophageal emptying rate. However, the mechanism by which obese individuals, that underwent to LVG, develop GERD is complex and multifactorial, and not due solely to alterations of the LES, but is associated to other factors such as esophageal peristalsis, gastric emptying and intragastric pressure.