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You are here: Home / Archives for Abstracts
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SAGES 2009 Abstracts Archive

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Abstract TitleAbstract TypeAbstract Topic

Adiponectin and Leptin in the Bariatric Patient

Background: Through relatively unknown mechanisms, bariatric surgery can resolve type 2 diabetes in morbidly obese patients. Potentially, pre- and post-operative changes in adiponectin and leptin expression are involved in this process. This study attempts to identify differences in gene expression in diabetic and non-diabetic patients undergoing bariatric surgery with regards to adiponectin and leptin. Methods:… Continue Reading

Type:
Posters
Topic:
Basic Science

Cardiovascular Differences Within the Omentum of Morbidly Obese Diabetic Patients

Background: The metabolic syndrome describes the association between obesity and a host of co-morbidities including insulin resistance, hypertension, dyslipidemia, and cardiovascular (CV) disease. Adipokines produced from omentum increase the inflammatory state and reportedly contribute to the risk of CV disease. This study examines the genetic differences in the omental tissue of morbidly obese diabetic and… Continue Reading

Type:
Posters
Topic:
Basic Science

Detail Analysis of Vessel Sealing Perfomance of Bipolar Vessel Sealing System for Laparoscopic Surgery

INTRODUCTION: Vessel sealing devices of 5 mm in diameter for laparoscopic surgery provide only a small breadth of sealing area. Therefore, various double sealing techniques have been tried to enhance bursting pressure of the sealed vessels by surgeons. However, there have been no reports to reveal which technique achieved best performance of vessel sealing. Those… Continue Reading

Type:
Posters
Topic:
Basic Science

Differential Expression of Mmp-2 in the Gastrohepatic Ligament of the Gastroesophageal Junction

Introduction: Ligamentous attachments maintain the normal anatomical position of the gastroesophageal (GE) junction. Failure of these elastic ligaments through an alteration in collagen synthesis, deposition and metabolism may be a primary etiology of hiatal hernia formation. Differential expression of zinc-dependent matrix metalloproteinases (MMPs) is largely responsible for collagen remodeling. The purpose of this study was… Continue Reading

Type:
Podium Presentations
Topic:
Basic Science

Enhanced Local Peritoneal Leukocyte P38 Activation and Tnf Secretion with Air Versus Co2 Insufflation

Background: Laparoscopic surgery has been shown to decrease systemic stress compared to open abdominal surgery. One of the mechanisms to explain this finding is the effect of carbon dioxide (CO2) as an insufflation gas. Previous studies have shown that peritoneal exposure to CO2 results in a suppressed inflammatory response compared to air exposure. With the… Continue Reading

Type:
Posters
Topic:
Basic Science

Hepatic Adiponectin and Leptin in Morbidly Obese Patients

Background: Pathologically, hepatic changes are common in morbidly obese patients. Insulin resistance impacts the pathogenesis of non-alcoholic fatty liver disease and may potentiate the progression of non-alcoholic steatohepatits and fibrosis. This study investigates the impact of leptin and adiponectin in morbidly obese diabetic and non-diabetic patients with regards to histopathological hepatic changes. Methods: Twenty morbidly… Continue Reading

Type:
Podium Presentations
Topic:
Basic Science

Hepatic Iron Overload in Patients Undergoing Rygb

BACKGROUND: The most common cause of hepatic iron overload is a genetic mutation (C282Y) that causes an increase in serum transferrin saturation and ferritin levels. Abnormalities in iron metabolism as well as nonalcoholic steatosis are known conditions associated with obesity. The purpose of this study was to analyze the hepatic DNA of morbidly obese patients… Continue Reading

Type:
Podium Presentations
Topic:
Basic Science

Human Monocyte Activation By Biologic and Biodegradable Meshes in Vitro

INTRODUCTION: We hypothesize that various biologic and biodegradable meshes (BM) differentially induce macrophage (MØ) activation in vitro. Inflammation and wound healing play critical roles in the integration of biologic and biodegradable meshes (BM) at the sites of hernia repair. Macrophages (MØ) are the key cells controlling inflammation and wound healing. Interleukin-1beta (IL-1b), IL-6, and IL-8… Continue Reading

Type:
Podium Presentations
Topic:
Basic Science

Laryngopharyngeal Reflux (lpr): Pathophysiologic Evidence of Two Different Subtypes

Introduction: Laryngo-pharyngeal reflux (LPR) refers to symptoms caused by backflow of gastric contents to the larynx and pharynx. Concurrent pH recordings at increasing distances above the LES are reported to show a linear decrease in acid exposure as the distance from the LES increases. While abnormal distal esophageal acid exposure is common in patients with… Continue Reading

Type:
Posters
Topic:
Basic Science

No Hemodynamic Difference Between NOTES and Endoscopy Over Short Time Period

Introduction: Natural Orifice Translumenal Endoscopic Surgery (NOTES) promises decreased invasiveness by performing intra-abdominal procedures while avoiding the abdominal wall. Data from a randomized blinded study showed significant divergence of heart rate and diastolic blood pressure for NOTES animals compared to laparoscopy animals. We compared animals undergoing diagnostic or interventional NOTES with animals undergoing standard endoscopy… Continue Reading

Type:
Posters
Topic:
Basic Science

Serum Leptin Levels Are Inversely Correlated with Omental Gene Expression of Adiponectin and Are Markedly Decrease After Laparoscopic Gastric Bypass Surgery

Adipose tissue is the most abundant endocrine tissue in the body, producing leptin, a hormone important in regulating hunger, and adiponectin, a hormone involved in insulin sensitivity and inflammation. The aim of this study was to assess the impact of gastric bypass surgery (GBS) on leptin levels and its relation to omental adiponectin expression. Methods:… Continue Reading

Type:
Podium Presentations
Topic:
Basic Science

The Effect of Inhaled Lps on the Development of Bronchiolitis Obliterans.

Introduction: Gastroesophageal reflux-associated chronic aspiration contributes to the development of various lung disease processes including chronic pulmonary allograft dysfunction, as manifested by the histologic finding of bronchiolitis obliterans (BO). The TLR-4 innate immune pathway is thought to play a role in these processes and may be activated by bacteria within the gastric contents. Here we… Continue Reading

Type:
Posters
Topic:
Basic Science

The Impact of Co2-pneumoperitoneum on Liver Regeneration After Liver Resection in a Rat Model.

IntroductionDuring the past years, laparoscopic hepatic resection is beeing performed by an increasing number of surgeons. Despite many advantages of the laparoscopic procedure, it is unclear if the pneumoperitoneum affects the postoperative liver regeneration after liver resection. The aim of the present study was to investigate the influence of a CO2-pneumoperitoneum (PP) on liver regeneration… Continue Reading

Type:
Podium Presentations
Topic:
Basic Science

Weight Loss Induced By Laparoscopic Bariatric Surgery Is Associated with a Reduction in Autonomic Responsiveness

Introduction: In the face of high caloric intake and low levels of physical exertion, obesity induces sympathetic nervous system activation. This increased autonomic activity is manifested as higher blood pressure in obese patients, and as a result, excess body weight is associated with increased cardiovascular morbidity. Furthermore, it has been shown that when patients lose… Continue Reading

Type:
Posters
Topic:
Basic Science

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