Analysis od the Study about Bariatric Surgery - Essay Example

There is already much research conducted to determine the efficacy of bariatric 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 bariatric 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 bariatric surgery among Swedish subjects.

The population of the study was composed of 3,570 individuals with a control group of 1,795 and a surgery group of 1,775 making the study credible by the extensiveness of its sample size. The study was lifted from the EbscoHost database using the key term “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 the study which included the risks posed by bariatric surgery. The risk identified by the study is a liver disease which is commonly associated with patients who are suffering from obesity.

The literature review of the study is objective and appropriate to the 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, the 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 the 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 the 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 setup (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 bariatric surgery is an effective strategy not only to control obesity but also the liver disease associated with obesity.

According to the study, the risks for liver disease that is common among obese people due to the elevated level of serum transaminase that is commonly associated with obesity. The study’s objective to determine if indeed bariatric surgery is an effective strategy to achieve and maintain weight loss was also proven. To determine this, the long-term effect of bariatric surgery on serum transaminases had been examined. Investigation showed that the effect of bariatric surgery on liver enzymes and NAFLD “have shown an improvement of serum transaminases and hepatic histologic features after surgery ” (3).

This resulted in an observed beneficial effect of bariatric surgery on serum transaminases that is effective up to 10 years after surgery. It can therefore be concluded that bariatric surgery has a long-term effect on liver diseases. The probability of the danger of contracting liver disease after 10 years also becomes lower. Further, the long-term effect of bariatric surgery and remission was also examined. It showed that the remission of the surgery group on a 2 and 10-year follow-up was more favorable compared to the control group suggesting that bariatric surgery also helps to prevent remission of chronic liver diseases due to obesity.