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Бариатрическая Хирургия

Бариатрические хирургические процедуры способствуют потере веса за счет ограничения количества пищи, которую может вместить желудок, вызывая нарушение всасывания питательных веществ, или за счет сочетания желудочного ограничения и мальабсорбции.

Бариатрические процедуры также часто вызывают гормональные изменения. Большинство операций по снижению веса сегодня проводится с использованием малоинвазивных методов (лапароскопическая хирургия).

Наиболее распространенными процедурами бариатрической хирургии являются обходной желудочный анастомоз, рукавная гастрэктомия, регулируемое бандажирование желудка и билиопанкреатическое шунтирование с дуоденальным переключателем. У каждой операции есть свои преимущества и недостатки.

Наиболее Распространенные Процедуры Бариатрической Хирургии

Желудочное Шунтирование

The Laparoscopic Sleeve Gastrectomy – often called the sleeve – is performed by removing approximately 80 percent of the stomach. The remaining stomach is a tubular pouch that resembles a banana.

The Procedure
This procedure works by several mechanisms. First, the new stomach pouch holds a considerably smaller volume than the normal stomach and helps to significantly reduce the amount of food (and thus calories) that can be consumed. The greater impact, however, seems to be the effect the surgery has on gut hormones that impact a number of factors including hunger, satiety, and blood sugar control.

Short term studies show that the sleeve is as effective as the roux-en-Y gastric bypass in terms of weight loss and improvement or remission of diabetes. There is also evidence that suggest the sleeve, similar to the gastric bypass, is effective in improving type 2 diabetes independent of the weight loss. The complication rates of the sleeve fall between those of the adjustable gastric band and the roux-en-y gastric bypass.

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Бандажирование Желудка

The Adjustable Gastric Band – often called the band – involves an inflatable band that is placed around the upper portion of the stomach, creating a small stomach pouch above the band, and the rest of the stomach below the band.

The Procedure
The common explanation of how this device works is that with the smaller stomach pouch, eating just a small amount of food will satisfy hunger and promote the feeling of fullness. 

The feeling of fullness depends upon the size of the opening between the pouch and the remainder of the stomach created by the gastric band. The size of the stomach opening can be adjusted by filling the band with sterile saline, which is injected through a port placed under the skin.

Reducing the size of the opening is done gradually over time with repeated adjustments or “fills.” 

The notion that the band is a restrictive procedure (works by restricting how much food can be consumed per meal and by restricting the emptying of the food through the band) has been challenged by studies that show the food passes rather quickly through the band, and that absence of hunger or feeling of being satisfied was not related to food remaining in the pouch above the band. 

What is known is that there is no malabsorption; the food is digested and absorbed as it would be normally.

The clinical impact of the band seems to be that it reduces hunger, which helps the patients to decrease the amount of calories that are consumed.

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