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Losing weight can be very tough for some people that some resort to artificial strategies to control it. One of the strategies used to control obesity is bariatic surgery. Bariatic surgery is “ an operation that is performed in order to help such individuals lose weight. Evidence suggests that bariatric surgery may lower death rates for patients with severe obesity, especially when coupled with healthy eating and lifestyle changes after surgery” (Mandal) which explains its growing popularity among people who have obesity problems. There are already many research conducted to determine efficacy of bariatic surgery that includes the perception of health care professionals and society in general, its effects on the patients as well as the safety of its practice. One of the researches conducted to determine the efficacy of bariatic surgery was the study made by Burza et al. entitled ‘ Long term effect of bariatric surgery on liver enzymes in Swedish obese subjects (SOS) study”. The study determined the efficacy of bariatic surgery among Swedish subjects. The population of the study composed of 3, 570 individuals with a control group of 1, 795 and surgery group of 1, 775 making the study credible by the extensiveness of its sample size.
The study was lifted from EbscoHost database using the key terms “ effects of bariatric surgery” and it was chosen as the literature of evaluation for the subject due to the extensiveness of its sample population as well as coverage of study which included the risks posed by bariatic surgery. The risk identified by the study is liver disease which is commonly associated to patients who are suffering from obesity.
The literature review of the study is objective and is appropriate to study’s objectives by offering sufficient background about the study and the population of the sample. The authors also identify the number of participants for the study, number of participants for each treatment, and the study’s inclusion criteria besides communicating the study’s compliance with ethical requirements. Application of statistical tools for descriptive statistics such as “ percentage for categorical variables,” and “ means and standard deviation,” on the other hand, establishes validity and reliability of the study’s results (Burza et al. 2). Other applied statistical tools are analysis of covariance and regression analysis. The results section is precise in reporting findings and is sufficient for evaluation of the study’s hypothesis. The study notes that a significant level of “ reduction up to 10 years of both ALT and AST level was observed in the surgery” relative to the controlled set up (Burza et al. 3). The result section also has tables and graphs for clarity of the results and therefore facilitates understanding of the article.
The result validated the hypothesis that bariatic surgery is an effective strategy not only to control obesity but also the liver disease associated to obesity. According to the study, the risks for liver disease that is common among obese people due to the elevated level of serum transaminase thatis commonly associatedwith obesity is. The study’s objective to determine if indeed bariatic surgery is an effective strategy to achieve and maintain weight loss was also proven. To determine this, the long term effect of bariatic surgery on serum transaminases had been examined.
Investigation showed that the effect of bariatic surgery on liver enzymes and NAFLD “ have shown an improvement of serumtransaminases and hepatic histologic features after surgery ” (3). This resulted to an observed beneficial effect of bariatic surgery on serum transaminases that is effective up to 10 years after surgery. It can therefore be concluded that bariatic surgery has a long-term effect against liver diseases. The probability of the danger of contracting liver disease after 10 years also becomes lower. Further, the long-term effect of bariatic surgery and remission was also examined. It showed that remission of surgery group on a 2 and 10 year follow up were more favorable compared to the controlled group suggesting that bariatic surgery also help to prevent remission of chronic liver diseases due to obesity.
In sum, the study showed that bariatic surgery is effective not only in controlling obesity but also chronic liver disease not only on the 10 year period coverage of the study but extends to the 2 year follow up for possible remission.
” Bariatric Surgery – What is Bariatric Surgery?.” THE MEDICAL NEWS | from News-Medical. Net – Latest Medical News and Research from Around the World. N. p., n. d. Web. 30 Sept. 2013. .
Burza, Maria, et al. “ Long-term effect of bariatric surgery on liver enzymes in the Swedish obese subjects (SOS) study.” Plos One 8. 3 (2013): 1-6. Print.