Impact of Gastric Banding on Eating Behavior and Weight

Lang, Thomas; Hauser, R.; Buddeberg, Claus; Klaghofer, Richard

doi:10.1381/096089202321144667

Cited by 83 publications

(84 citation statements)

References 15 publications

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“…Studies have shown that after gastric banding, patients experience increased fasting and post-prandial satiety levels [7] and decreased hunger scores [8][9][10]. Variations in gastrointestinal hormone levels have been proposed as a contributing mechanism for the weight reduction observed after bariatric surgery, and several clinical groups have investigated the effect of bariatric procedures on ghrelin, PYY, and GLP-1 levels.…”

Section: Discussionmentioning

confidence: 99%

“…Several studies have now shown that bariatric surgery, besides causing either food restriction and/or malabsorption, also induces a decrease in food intake [6][7][8][9][10] and changes metabolic pathways towards increased energy expenditure [11][12][13]. Moreover, there is growing evidence that bariatric surgery is able to interfere with the systems that regulate appetite and satiety [8][9][10]14].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, there is growing evidence that bariatric surgery is able to interfere with the systems that regulate appetite and satiety [8][9][10]14]. Gastrointestinal hormones are important signals that regulate food intake: changes in the levels of ghrelin, peptide YY (PYY), and glucagon-like peptide 1 (GLP-1) observed after obesity surgery have been hypothesized to mediate the anorexigenic effect of these surgical procedures [15].…”

Section: Introductionmentioning

confidence: 99%

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Increase in Ghrelin Levels After Weight Loss in Obese Zucker Rats is Prevented by Gastric Banding

et al. 2007

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Background Gastric banding is thought to decrease appetite in addition to the mechanical effects of food restriction, although this has been difficult to demonstrate in human studies. Our aim was to investigate the changes in orexigenic signals in the obese Zucker rat after gastric banding. Methods Obese Zucker rats ( fa/fa) were submitted to gastric banding (GBP), sham gastric banding fed ad libitum (sham), or sham operation with food restriction, pair-fed to the gastric banding group (sham-PF). Lean Zucker rats ( fa/+) were used as additional controls. Body weight and food intake were daily recorded for 21 days after surgery when epididymal fat was weighed and fasting ghrelin and hypothalamic NPY mRNA expression were measured. Results Gastric banding in obese Zucker rats resulted in a significant decrease of cumulative body weight gain and food intake. Furthermore, gastric banded rats were leaner than Sham-PF, as expressed by a significantly lower epididymal fat weight. Ghrelin levels of gastric banded rats were not increased when compared to sham-operated animals fed ad libitum and were significantly lower than the levels of weight matched sham-PF rats (1116.9±103.3 g GBP vs 963.2±54.3 g sham, 3,079.5±221.6 sham-PF and 2,969.9±150.9 g lean rats, p<0.001); hypothalamic NPY mRNA expression was not increased in GBP when compared to sham-operated rats. Conclusion In obese Zucker rats, GBP prevents the increase in orexigenic signals that occur during caloric deprivation. Our data support the hypothesis that sustained weight loss observed after gastric banding does not depend solely on food restriction.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Increase in Ghrelin Levels After Weight Loss in Obese Zucker Rats is Prevented by Gastric Banding

et al. 2007

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“…14 Longitudinal studies have reported a more restrained eating pattern and decreased susceptibility to hunger following LAGB. [15][16][17] It has been shown that with LAGB, many foods of a coarser texture are unable to be consumed, as they will not transit past the LAGB. Even stable, successful patients do at times regurgitate foods of an inappropriate bolus consistency.…”

Section: Mode Of Weight Loss With Lagbmentioning

confidence: 99%

The mechanism of weight loss with laparoscopic adjustable gastric banding: induction of satiety not restriction

Burton

Brown

2011

Int J Obes

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Laparoscopic adjustable gastric banding (LAGB) has rapidly emerged as a popular bariatric procedure because of its safety, efficacy, durability and adjustability. Despite widespread use, there is limited understanding of how it induces weight loss. Previously, it has been classified as a restrictive procedure, physically limiting the patient to a small meal that subsequently slowly empties into the distal stomach. However, the tiny pouch of stomach created above the LAGB appears to be unable to accommodate even the smallest of meals. Therefore, the key mechanism has been hypothesized to be the induction of satiety via, as yet, undefined pathways. The critical question remains: what are the key physiological changes that lead to satiety and weight loss? In successful LAGB patients, a consistent intraluminal pressure at the level of the LAGB of 26.9±19.8 mm Hg is observed. Studies using semi-solid swallows combined with intraluminal pressure recordings have demonstrated that semi-solid transit across the resistance of the LAGB is mediated by repeated esophageal peristaltic contractions (mean 4.5±2.9) that produce episodic flow, interspersed by reflux events. Failed transit results in obstruction and regurgitation, whereas dilatation of the supraband stomach induces severe and intolerable reflux. Overall gastric emptying does not appear to be significantly altered following LAGB. Focused investigations have shown that the supraband stomach is empty of an ingested meal 1-2 min after intake ceases. Considerable progress has been made in understanding the mechanical physiological effects of the LAGB on esophageal and proximal gastric function. These have been correlated with patient outcomes and sensations. On the basis of recent data, it appears that the LAGB activates the peripheral satiety mechanism without physically restricting the meal size. Therefore, it should not be classified as a restrictive procedure. The precise mechanism of weight loss with the LAGB remains to be delineated.

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“…Otro estudio de seguimiento, un año después de la CB, reportó que el 24.2% de los pacientes persistían con esta conducta. 59,60 Un estudio retrospectivo reportó que 14 de 38 pacientes que recordaron haber presentado atracones antes de la cirugía continuaban presentándolos hasta 15 años después. La conducta se presentó principalmente en aquellos que ya tenían atracones previos y 4.5% los reportaron de novo.…”

Section: Trastornos De La Conducta Alimentaria (Tca)unclassified

La salud mental en el paciente con obesidad en protocolo para cirugía bariátrica

Esquivias-Zavala

Reséndiz-Barragán

García³

et al. 2016

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BackgroundThe association between obesity and psychopathology is well known. However, the presence of psychopathology in patients with morbid obesity who attend bariatric surgery and its impact in weight loss has been less studied. ObjectiveTo perform a theme update about the general context of psychiatric disorders associated with morbid obesity, and to assess the impact of such disorders in patients undergoing bariatric surgery. Method EBSCO ResearchDatabase and PubMed databases were consulted. Articles published between 2011 and today were selected. Key words related to the topic of study were used. ResultsThe studies reviewed showed five psychopathological clinical entities with high prevalence in patients who attend bariatric surgery: Depression and anxiety, attention deficit hyperactivity disorder, disorders of eating behavior, substance abuse, and some dimensions of personality. The presence of these disorders was associated to a poor post-surgical weight loss. Discussion and conclusionBinge eating disorder and substance abuse impact on weight loss after bariatric surgery is controversial. The evaluation of obese patients who attend bariatric surgery must emphasize, according with reported disorders prevalence, the identification of depression, anxiety and attention deficit hyperactivity disorder.Key words: Mental health, morbid obesity, bariatric surgery, weight loss, psychopathology, depressive disorder. RESUMEN AntecedentesLa asociación entre obesidad y psicopatología es bien conocida; sin embargo, la presencia de esta última en los pacientes con obesidad mórbida sometidos a cirugía bariátrica y su impacto en la pérdida de peso ha sido menos estudiado. ObjetivoRealizar una actualización sobre el panorama general de los trastornos psiquiátricos asociados con la obesidad mórbida, y el impacto de éstos sobre la pérdida de peso en pacientes bariátricos. MétodoSe consultaron las bases de datos EBSCO Research Database y PubMed. Se seleccionaron los artículos publicados de 2011 a la fecha. Fueron utilizadas palabras clave relacionadas con el tema de estudio. ResultadosLos estudios revisados mostraron cinco entidades clínicas psicopatológicas con alta prevalencia en pacientes que se encuentran en protocolo de cirugía bariátrica: Depresión y ansiedad, trastorno por déficit de atención e hiperactividad, trastornos de la conducta alimentaria, abuso de sustancias y algunas dimensiones de la personalidad. La presencia de estas condiciones se asoció a una menor pérdida de peso posterior al procedimiento quirúrgico. Discusión y conclusiónEl impacto del trastorno por atracón y por abuso de sustancias en la pérdida de peso, posterior a la cirugía bariátrica, es controversial. La evaluación del paciente con obesidad candidato a cirugía bariá-trica debe enfatizar, de acuerdo con la prevalencia de los trastornos reportados, la identificación de trastornos depresivos-ansiosos y del trastorno por déficit de atención e hiperactividad.Palabras clave: Salud mental, obesidad mórbida, cirugía bariátri-ca, pérdida de pes...

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Impact of Gastric Banding on Eating Behavior and Weight

Cited by 83 publications

References 15 publications

Increase in Ghrelin Levels After Weight Loss in Obese Zucker Rats is Prevented by Gastric Banding

Increase in Ghrelin Levels After Weight Loss in Obese Zucker Rats is Prevented by Gastric Banding

The mechanism of weight loss with laparoscopic adjustable gastric banding: induction of satiety not restriction

La salud mental en el paciente con obesidad en protocolo para cirugía bariátrica

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