Publications by authors named "Gontrand Lopez-Nava"

Article Synopsis
  • EndoZip is a new robotic device designed for minimally invasive suturing to help with obesity treatment, particularly for gastric volume reduction.
  • A study involved 45 patients with a BMI of 30-40, showing significant weight loss and improvements in health markers after one year of using the device.
  • Results indicated that the procedure was successful for all participants, with most losing over 5% of their body weight and experiencing better quality of life; adverse events were rare.
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Background And Aims: Reintervention after endoscopic sleeve gastroplasty (ESG) can be indicated because of postprocedural adverse events from various preinterventional or postprocedural comorbidities. We developed and internally validated an ESG reintervention score (ESG-RS) that determines the individualized risk of reintervention within the first 30 days after ESG.

Methods: We used data from a sample of 3583 patients who underwent ESG in the Metabolic and Bariatric Surgery Accreditation Quality Improvement Program database (2016-2021).

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The prevalence of obesity has risen exponentially, and patients living with obesity suffer from its debilitating consequences. The treatment options for obesity have expanded significantly and include lifestyle changes, pharmacotherapy, endoscopic bariatric therapies (EBTs), and bariatric surgery. Endoscopic bariatric therapies comprise volume-reducing procedures such as endoscopic gastroplasty and gastric space-occupying devices such as intragastric balloons.

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Background: Endoscopic bariatric therapies can help address widening management gaps in obesity. Their ability to facilitate weight loss is largely tied to influences on appetite through perturbations of gastric emptying and accommodation. As these tools gain traction in obesity therapy, their physiologic underpinnings require exploration, which may enhance efficacy, tolerance, and patient-tailored care.

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Background & Aims: The Primary Obesity Surgery Endoluminal (POSE) 2.0 procedure involves a novel pattern of full-thickness gastric body plications to shorten and narrow the stomach using durable suture anchor pairs. Our prospective, multicenter trial examined the safety, efficacy, durability, and physiologic effects of POSE 2.

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Obesity is an expanding disease responsible for significant deterioration in the Health-Related Quality of Life (HRQL) of those who suffer from it. Bariatric Endoscopy (BE) therapies have proven to be an effective treatment for this pathology. A multidisciplinary approach is essential for the successful therapeutic management of BE.

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Background And Aim: Endoscopic sleeve gastroplasty (ESG) is an alternative nonsurgical treatment option for obesity. However, most studies on the utility and efficacy of ESG are derived from the Western population. It is unknown if ESG elicits similar results in Asians with different fat distribution, sociocultural customs, and dietary practices.

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Introduction: ESG is an effective treatment for classes I and II obesity. However, the benefit of ESG in patients with morbid obesity (BMI ≥ 40 kg/m) who decline surgery is not known. The study aims to compare the effectiveness and safety of ESG in all three obesity classes at 1 year.

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A 61-year-old man was referred to the bariatric endoscopy unit for the management of morbid obesity (BMI 47 kg/m). He had multiple obesity-related medical comorbidities. His weight gain started 8 years after suffering smoke inhalation syndrome following an industrial accident.

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Article Synopsis
  • - The study evaluated the POSE-2 procedure for weight loss in 75 patients, focusing on its effectiveness and safety after one year.
  • - Results showed that patients lost an average of 20 kg (17.8% of total body weight) with a high technical success rate of 98.7%, and only a few reported adverse events.
  • - Overall, the POSE-2 procedure was found to be safe, led to substantial weight loss, and allowed for a quick recovery, requiring only a one-day hospital stay.
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Endoscopic sleeve gastroplasty (ESG) is an effective treatment option for obesity. However, data comparing its efficacy to bariatric surgery are scarce. We aimed to compare the effectiveness and safety of ESG with laparoscopic sleeve gastrectomy (LSG) and laparoscopic greater curve plication (LGCP) at 2 years.

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COVID-19 (Coronavirus disease 2019) caused by SARS-CoV-2 has become a global pandemic. Obesity is a risk factor for severe disease, and the practice of endoscopy poses special challenges and risks of SARS-CoV-2 transmission to patients and providers given the evolving role of the gastrointestinal tract in viral transmission and aerosol generation during endoscopic procedures. It is therefore necessary to distinguish between urgent interventions that cannot be postponed despite the risks during the pandemic and, in contrast, purely elective interventions that could be deferred in order to minimize transmission risks during a time of infection surge and limited access.

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Introduction: Although primary endoscopic sleeve gastroplasty (P-ESG) is effective, some patients may require revision procedures to augment weight loss. We hypothesized that a non-surgical approach using redo ESG (R-ESG) might be a viable option in such patients. We aimed to assess the safety and efficacy of R-ESG following P-ESG to treat obesity.

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Introduction: Endoscopic bariatric therapies (EBT) have demonstrated to induce weight loss and improve comorbidities in obese patients. However, little is known about its impact on health-related quality of life (HRQOL) outcomes and physical activity status. This study aimed to evaluate the change in HRQOL and physical activity following EBT induced weight loss in obese patients.

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Background: The intragastric balloon (IGB) is commonly used for weight loss. Identifying patients who are most likely to tolerate and benefit from IGB therapy will optimize outcomes. Our aims were to prospectively utilize a gastric emptying study to predict intolerance and treatment response with a single fluid-filled IGB and to develop a physiologic prediction model with a treatment algorithm.

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Introduction: ESG reduces gastric lumen similar to LSG and induces significant weight loss. However, the metabolic and physiological alteration after ESG is not fully understood. We aim to study the gastrointestinal hormone changes after ESG and compared it with LSG.

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Introduction: Endoscopic gastroplasty and gastric volume reduction techniques have been shown to achieve significant weight loss and improvement in comorbid conditions. The objective of this study is to assess the feasibility and safety of a novel fully automated, operator-independent endoscopic suturing system (EndoZip™) for minimally invasive treatment of obesity.

Design: Single-center pilot feasibility study.

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 It is uncertain if the difference in weight loss outcomes between different endoscopic bariatric therapies (EBTs) is technique-related or multidisciplinary team (MDT) follow-up-related. We hypothesized that at 1 year, the weight loss is determined more by adherence to MDT follow-up than by procedure type. We aimed to compare 1 year weight loss outcomes of four different EBTs at a single center with a standardized MDT follow-up.

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Article Synopsis
  • Technological advances have led to minimally invasive treatment options for gastrointestinal diseases, enabling procedures similar to traditional surgeries.
  • Endoscopic techniques, particularly in bariatrics, are evolving for weight loss and managing weight regain after gastric bypass surgery.
  • The article focuses on a simplified method for endoscopic sleeve gastroplasty, utilizing the OverStitch suturing device to improve proficiency in these techniques.
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