Objective To systematically evaluate the effectiveness of frequently-used bariatric surgery versus conventional medical therapy for obese patients with type 2 diabetes. Methods Such databases as The Cochrane Library (Issue 12, 2012), PubMed, CNKI, CBM, VIP and WanFang Data were searched to collect the randomized controlled trails (RCTs) about frequently-used bariatric surgery vs. conventional therapy for obese patients with type 2 diabetes. The retrieval time was from inception to May, 2012. Two reviewers independently screened the literature according to the inclusion and exclusion criteria, extracted the data, and evaluated the quality. Then the meta-analysis was performed using RevMan 5.1.2 software. Results A total of three RCTs involving 340 patients were included finally. The results of meta-analysis showed that, compared with conventional medical therapy, bariatric surgery could improve the diabetes remission, decrease both glycated hemoglobin level and patient’s weight. At the same time, the postoperative complications were fairly mild. Conclusion Frequently-used bariatric surgery is superior to conventional medical therapy when treating obese patients with type 2 diabetes, and it deserves to be recommended in clinic. However more studies are required to further confirm this conclusion because of the quality and quantity limitation of the included studies.
Objective To investigate the effect of aerobic combined with resistance training on exercise capacity and quality of life in patients with severe or very severe chronic obstructive pulmonary disease (COPD). Methods Thirty patients with severe or very severe COPD were randomly divided into the control group (n=15) and the exercise group (n=15) from January 2011 to January 2013. The control group was given health education and routine drug treatment. The exercise group was given muscle relaxation and 6-week aerobic combined resistance exercise training on the basis of the control group. Pulmonary function, 6-minute walk test (6MWT), 30-second sit-to-stand (30-STS), 30-second arm curl test (30-ACT), Medical Research Council Dyspnea Scale (MRC), COPD Assessment Test (CAT), Beck Anxiety and Depression Scale were performed before and after intervention in both groups. Results After intervention, compared with those in the control group, the 6MWT, 30-STS and 30-ACT in the exercise group increased significantly [(518.44±84.62) vs. (412.93±82.53) m, (24.53±3.98) vs. (16.87±3.91) times, (26.07±3.41) vs. (17.93±3.39) times, P<0.05], while the CAT score, Beck anxiety and depression scores decreased significantly (4.87±3.68vs. 26.10±10.18, 2.47±1.81 vs. 11.50±4.89, 2.27±2.49 vs. 12.20±6.35, P<0.05), and MRC score also decreased significantly [1.0 (1.0, 2.0)vs. 2.0 (2.0, 4.0), P<0.05]. There was no statistical difference in pulmonary function between the two groups before or after intervention (P>0.05). Conclusion Exercise-based pulmonary rehabilitation can significantly improve the treatment outcomes in Chinese patients with severe or very severe COPD.