Objective To compare the quality of life at baseline and at 3 months after coronary artery bypass grafting(CABG) and investigate the related risk factors. Methods The prospective study included 121 consecutive patients reaching inclusion criteria and undergoing CABG between June 2009 and May 2016. Health status survey was measured with short form-36(SF-36)at baseline and at 3 months after CAGB. Change of quality of life and influencing factors and quality of life were analyzed. Results Eight domains including physical functioning ,role-physical ,bodily pain,general health,vitality,social functioning,role-emotional and mental health and two component summaries including physical component summary(PCS)and mental component summary (MCS)of SF-36 were significantly improved at 3 months following CAGB(all P<0.01). Moreover,advanced age, women,diabetes mellitus,assisted ventilation time,hospital stay and use of t-PA were relative to the PCS after CAGB. Conclusions The findings demonstrate quality of life is significantly improved at 3 months post CAGB. Advanced age,underlying disease,serious disease,women and lower PCS score prior to CAGB are linked with low PCS after CAGB.

Objective To investigate the effect of laparoscopic Roux-en-Y gastric bypass(LYGB) on body fat distribution,and relationship between the changes of body fat distribution and improvement of insulin resistance.Methods A total of 65 patients with type 2 diabetes who underwent LYGB were selected for a retrospective analysis.Metabolic parameters,anthropometric measurements,body composition and fat distribution measured by dual-energy X-ray absorptiometry (DEXA) were collected separately before and 6 months post LYGB.All data of pre-and postoperation were compared with pair t test,Pearson correlation analysis was used to evaluate correlation of two variables.Results Weight,body mass index,waist circumference,waist-to-hip ratio,triglyceride,fasting plasma glucose,fasting insulin and homeostatic model assessment for insulin resistance (HOMA-IR) were significantly decreased in 6 months after surgery (P ＜ 0.05).Total fat mass,body fat mass of trunk,upper and lower limbs decreased significantly (P ＜0.05).Percent fat mass at the whole body,Android region,upper and lower limbs decreased significantly (P ＜0.05).After 6 months postoperatively,abdominal obesity indices waist circumfernce decreased from (98.10±13.03) cm to (91.60±7.68) cm (P＜0.01) and percent fat mass at the Android region decreased from (35.71 ±10.24)％ to (29.44 ± 12.11) ％ (P＜0.05),HOMA-IR decreased from 3.62 ± 5.18 to 1.79 ± 1.52 (P ＜ 0.05).The improvement of postoperative insulin resistance is positively correlated with the changes in waist circumference (P ＜0.01) and percent fat mass of Android region (P ＜0.05).Conclusions The body fat distribution changes after LYGB,change of abdominal fat distribution is positively correlated to the improvement of insulin resistance.