Objective To compare the effects of laparoscopic Roux-en-Y gastric bypass (LRYGB) for the treatment of type 2 diabetes mellitus (T2DM) patients in various obesity degree.Methods A total of 36 T2DM patients undergoing LRYGB were enrolled in this study in our hospital from June 2012 to June 2014.The patients were divided into BMI ≥ 32.5 kg/m2 group (n =13) and 27.5 kg/m2 ≤ BMI ＜ 32.5 kg/m2 group (n =23) based on BMI.Results In group 1,following the degression of BMI from (37.7±3.6) kg/m2 to (29.1 ±3.5) kg/m2 at 12 months after surgery,fasting blood glucose of group 1 decreased from (7.8 ± 1.6)mmol/L to (5.2 ±1.0)mmol/L (t =5.796,P =0.000),and HbA1c decreased from 7.3％ ±0.7％ to 6.1％ ± 1.0％ (t =5.589,P =0.000);and following the degression of BMI from(30.0 ± 1.6) kg/m2 to (25.8 ± 3.2) kg/m2,fasting blood glucose of group 2 decreased from (8.9 ± 1.7) mmol/L to (6.1 ± 1.5) mmol/L (t =6.577,P =0.000),and HbA 1 c decreased from 7.8 ％ ± 1.8％ to 6.4％ ± 1.0％ (t =4.257,P =0.000).Though Homa-IR of two groups was significantly improved after surgery (t =6.415,4.135;P =0.000,0.000),there was no difference to Homa-β (t =1.007,-0.155;P =0.334,0.878).Complete remission ratio of BMI ≥ 32.5 kg/m2 group was not significantly different with 27.5 kg/m2 ≤ BMI ＜ 32.5 kg/m2 group.Conclusion LRYGB is effective for the treatment of type 2 diabetes patients despite preoperative various obesity degree.

Objective To evaluate the effectiveness and safety of open tension-free hernioplasty and two kind of laparoscopic hernia repair for the treatment of primary unilateral inguinal hernia. Methods Patients suffering from primary unilateral inguinal hernia were randomly divided into 3 groups to undergoopen operation with mesh-plug and patch or transabdominal preperitoneal hernioplasty (TAPP) or totally extraperitoneal hernioplasty (ZEP). Results From February 2006 to February 2009, a total of 164patients were divided into 3 groups, with 62 undergoing open tension-free mesh-plug hernia repair, 50receiving TAPP and 52 receiving TEP. Postoperative patients were then followed up for a period of(16±8)months. The average operating time for the patients in the open mesh repair group was significantly shorter compared to the other two groups (P＜0.01 ). The cost in the open mesh repair group was also significantly lower than the other two groups (P＜0.01). The pain scores in open mesh group were significantly higher than those in the other two groups (P＜0.01). The hospital stay and the recovery time were both significantly longer in the open mesh repair group (P＜0.01) compared to the other two groups. No major complications and recurrence was found in neither groups. Conclusions Open tension-free mesh-plug hernia repair, TAPP and TEP are all safe and effective for the treatment for patients with primary unilateral inguinal hernia. TAPP and TEP are superior to open tension-free mesh-plug hernia repair as these two procedures involve less postoperative pain and fast recovery.

Objective To investigate the effect of FTO gene on laparoscopic Roux-en-Y gastric bypass for type 2 diabetes.Methods From Jan 2014 to 2015 Jun,32 T2DM patients received LRYGB in Beijing Shijitan Hospital.According to single nucleotide polymorphism of FTO rs9939609 gene,patients were divided into TF genotype (20 cases),and AT/AA genotype (12 cases).Results Following the degression of BMI from (36.4 ±3.3) kg/m2 to (28.1 ±2.8) kg/m2,fasting blood glucose and HbA1c in group A significantly improved [(8.9 ± 1.6) mmol/L vs.(5.6 ± 1.2) mmol/L,t =8.274,P =0.000;(8.5％ ± 1.9％) vs.(6.2％ ± 0.8％),t =5.032,P =0.000].Following the degression of BMI from (39.5 ±5.6) kg/m2 to (29.7 ± 5.1) kg/m2,fasting blood glucose and HbA1c in group B significantly improved [(10.8 ± 2.8) mmol/L vs.(4.9 ± 0.6) mmol/L,t =7.589,P =0.000;(9.0％ ± 1.8％) vs.(6.1％ ±0.9％),t =5.324,P =0.000].Insulin resistance index in both groups significantly improved [(12.6±10.7) vs.(4.9±5.6),t=5.402,P=0.000;(16.0±5.6) vs.(1.7±1.3),t=9.025,P=0.000].Fasting blood glucose and the insulin resistance index in group B patients was significantly lower than that in group A patients (P ＜ 0.05).Conclusion T2DM patients with FTO rs9939609 gene phenotype AT/AA have better prognosis than those with TT in postoperative diabetes improvement.

Objective To compare laparoscopic Roux-en-Y gastric bypass and laparoscopic sleeve gastrectomy for the treatment of obese patients with type 2 diabetes mellitus.Methods A retrospective analysis of T2DM patients with LRYGB (28 cases) and LSG (35 cases) was enrolled from Jan 2010 to Jun 2013.Results The indicator such as BMI,fasting glucose,fasting insulin,HbA1c,and insulin resistance were significantly lower in 1 year,3 years and 5 years after operation [LRYGB group:(37.3 ±3.7) kg/m2 to (32.3 ± 3.4) kg/m2 to (28.8 ± 3.0) kg/m2 to (25.5 ± 2.8) kg/m2,t =13.670,15.499,21.710,P=0.000,0.000,0.000;(8.2 ± 1.8) mmol/L to (6.0 ± 1.3) mmol/L to (5.2 ±0.9) mmol/L to (4.7±0.5) mmol/L,t =6.664,8.723,10.282,P=0.000,0.000,0.000;(32.2±17.0) μ IU/ml to (16.1 ± 12.1) μIU/ml to (8.6 ±5.2) μ IU/ml to (5.2 ±2.8) μIU/ml,t =7.453,8.218,8.687,P =0.000,0.000,0.000;(7.4％ ±0.6％) to (6.2％ ±0.7％) to (5.7％ ±0.7％) to (5.1％ ±0.6％),t =11.362,18.771,21.186,P=0.000,0.000,0.000;(12.0±7.3) to (4.6±4.3) to (2.1 ±1.7) to (1.1 ±0.7),t =6.455,7.667,8.050,P=0.000,0.000,0.000;LSG group:(39.2±5.2) kg/m2 to (34.1 ±4.5) kg/m2to (29.3±4.0) kg/m2to (25.1 ±2.3) kg/m2,t=11.676,13.680,19.161,P=0.000,0.000,0.000;(8.0±2.9) mmol/L to (5.8±1.5) mmol/L to (5.1 ±0.9) mmol/L to (4.6 ±0.5) mmoL/L,t=5.467,6.921,7.741,P=0.000,0.000,0.000;(29.1 ±25.2) μIU/ml to (16.4±10.6) μ IU/ml to (8.8±5.5) μ IU/ml to (5.5 ±2.0) μIU/ml,t =3.512,5.232,5.702,P=0.001,0.000,0.000;(7.7％ ±1.3％) to (6.3％ ±0.6％) to (5.8％ ±0.6％) to (5.2％ ±0.6％),t=8.001,10.106,11.922,P =0.000,0.000,0.000;(9.8 ±9.6) to (3.9 ±2.2) to (1.9 ±1.0) to (1.1 ± 0.4),t =3.733,4.972,5.404,P =0.001,0.000,0.000].There was no significant difference between the two groups in 1 year,3 year and 5 year post-operation (DM remission:71％ to 69％,89％ to 80％,93％ to 89％) (P ＞ 0.05).Conclusion LRYGB and LSG have the same long-term efficacy for T2DM patients.

Objectives To investigate the efficacy of laparoscopic sleeve gastrectomy (LSG)for patients of type 2 diabetes mellitus (T2DM).Methods Between Jun 2013 and Jun 2017,39 T2DM patients were enrolled in this study and underwent LSG.The clinical data of all patients were collected.The fasting plasma glucose (FPG),glycosylated hemoglobin (HbAl c),C-peptide,fasting insulin (FINS),glucagon-like peptide-1 (GLP-1) as well as BMI of all patients were measured before and at 1,6 months after surgery.Results All patients underwent LSG surgery successfully.The mean levels of FPG,HbAlc,C-peptide,FINS and BMI of all patients decreased at 6 months after surgery respectively compared to those before surgery [(6.4 ± 1.2) mmol/L vs.(9.6 ± 2.3) mmol/L,t =9.455,P =0.000;(6.0 ± 0.7) ％ vs.(7.5 ±1.0)％,t=10.538,P=0.000;(2.7±2.2)ng/ml vs.(4.0±2.6) ng/ml,t=3.491,P=0.001;(9.2 ±6.3) μIU/L vs.(15.5 ±11.1) μIU/L,t=4.902,P=0.000;(32.0 ±6.1) kg/m2 vs.(41.0 ± 7.5) kg/m2,t =10.826,P =0.000],however the mean GLP-1 of all patients increased after surgery compared to that before surgery [(4.0 ± 2.1) pmol/L vs.(3.1 ± 2.2) pmol/L,t =-4.242,P =0.000].At 6 months after surgery,32 patients achieved complete remission of T2DM,5 patients gained partial remission of T2DM and 2 patients got no remission of T2DM.Conclusions LSG is effective for obesity patients as well as patients suffering from T2DM.

Objective To study the treatment principles and surgical skills in laparoscopic subtotal cholecystectomy (LSC) for acute cholecystitis.Methods We retrospectively analyzed the clinical data of patients who underwent LSC for acute cholecystitis from Jan.2006 to Dec.2015 at the Beijing Shijitan Hospital,Capital Medical University.We dissected any serious pericholecystic adhesions according to the principle that "It is better that the gallbladder rather than other tissue is injured",and the technique that "After the gallbladder anterior wall is excised,the gallbladder ampulla and duct are split along the longitudinal direction of the cholecystic duct,then the opened cholecystic duct is sutured inside the gallbladder".Results LSC was completed successfully in 96 patients.There were no conversion to open surgery,and no bile duct injury.The mean surgery time was (108.0 ± 37.0) min,the mean blood loss was (121.0 ± 62.0) ml,the mean peritoneal drainage was (105.0 ± 32.0) ml.The drainage tube was removed at a mean of (3.4 ±1.2) d after surgery.The mean hospitalization time after surgery was (6.1 ± 2.2) d.Surgical complications occurred in 2 patients with bleeding after surgery.One patient underwent laparoscopic exploration to stop bleeding.Another patient underwent conservative treatment and the bleeding stopped spontaneously.There were 3 patients who had mild bile leakage.All these patients recovered well after drainage.No patient developed bile duct stenosis or obstructive jaundice on follow-up.Conclusions LSC for acute cholecystitis was safe.Bile duct injuries could be avoided if we follow the principle of "It is better that the gallbladder rather than other tissue is injured" and the technique of "After the gallbladder anterior wall is excised,the gallbladder ampulla and duct are split along the longitudinal direction of the gallbladder,then the opened cholecystic duct is sutured inside the gallbladder".

Objective:To evaluate the application of Moorehead-Ardelt Ⅱ questionnaire (MA Ⅱ) in assessment of the quality of life (QOL) among obese patients after bariatric surgery.Methods:One hundred and five patients with obesity were enrolled, the weight, body mass index (BMI), comorbidities and MA Ⅱ scores before and after operation were counted. The difference between the QOL of pre- and post-operation was analyzed.Results:All the patients completed the questionnaire. The Cronbach α coefficient of the questionnaire was higher than 0.7. The post-operational scores of 6 items were significantly higher than that of pre-operation. ( P<0.001). The proportion of "poor" and "very poor" QOL in the pre-operational patients was 43.8%, compared with 0 in the post-operative patients;the proportion of "good" and "very good" QOL in the pre-operatve patients was 4.7%, compared to 86.7% in the post-operative patients ( χ2=146.863, P<0.001). Conclusions:MA Ⅱ questionnaire is a professional, easy oprated tool for assessment of QOL associated with obesity.

Objective:To investigate anticoagulant effects of mechanical methods in obese patients undergoing laparoscopic sleeve gastrectomy (LSG).Methods:In this prospective study, 54 obese patients receiving LSG were enrolled . All patients were given post-op mechanical methods for thrombogenic interventions. BMI and the operation-related factors were recorded. Venous blood specimens were taken from each patient before surgery, at the end of pneumoperitoneum (i.e., 0 h after surgery), at 24 hours after surgery for prothrombin time (PT) and activated partial thromboplastin time (APTT), fibrinogen (FIB) and D-dimer (D-D).Results:All 54 obese patients successfully underwent LSG. No severe complications were observed. Before operation, the mean BMI was (43.49±8.29) kg/m 2. DVT-2600 device was applied in all patients for 3 consecutive days after surgery. The PT values increased at 0 h, 24 h after surgery [(12.4±1.2) s, (12.4±0.8) s vs. (11.2±0.8) s, P=0, 0]. The APTT values at 0 h, 24 h after surgery decreased [(29.7±3.6) s, (29.0±3.1) s vs.(31.2±3.3) s, P=0.020, 0.001]. However, the D-D values increased at 0 h,24 h after operation [(213±143) ng/ml ,(445±237) ng/ml vs. (85±108) ng/ml, P=0, 0]. All patients were followed up for 1 month, and no thrombosis -related complications were observed. Conclusion:Mechanical methods for obese patients after LSG can help decrease the risk of deep venous thrombosis.

Objective:To investigate the predictive value of preoperative peripheral blood lymphocyte to monocyte ratio (LMR) for lymph node metastasis in gastric cancer.Methods:Data of 177 gastric cancer patients who underwent surgical treatment in Beijing Shijitan Hospital from Jan 2014 to May 2017 were retrospectively analyzed. According to the ROC curve, the optimal critical value is determined to be 3.79. By this value, patients were divided into high LMR group (LMR≥3.79) and low LMR group (LMR<3.79). Patients′ clinicopathological characteristics were collected to analyze the relationship between LMR and lymph node metastasis and lymph node N staging.Results:A comparison of LMR and N1 and N2 stage between the two groups showed no significant difference, but both N1 and N2 had statistical defference with N3 ( P<0.05), suggesting a positive correlation between low LMR and high N stage. Logistic regression analysis proves that low LMR is significantly correlated with metastatic lymph node when the number was more than 6. Conclusion:Low LMR is positively correlated with lymph node metastasis in gastric cancer patients.

Objective To explore the morbidity of surgery in connection with laparoscopic sleeve gastrectomy (LSG) and its effect on obese T2DM.Methods 106 obese T2DM patientes undergoing LSG were divided into 2 groups in group 125 patients did not have oversewing the staple line and group 281 patients had the staple line oversewn in order to reduce bleeding.Results The differences in intraoperative blood loss (35 ± 15) ml vs.(28 ± 18) ml,postoperative recovery time (2.4 ± 0.9) d vs.(2.3 ± 0.9) d,time to taking liquid food (4.7 ± 1.0) d vs.(4.6 ± 1.0) d between two groups were not significant.There were no significant difference of complication between 2 groups (x2 =3.271,P =0.071).Comparing before surgery to 6 month after surgery,the BMI in group 1,was from (39 ± 5) to (29 ±4) kg/m2;in group 2,from (40 ±6) to (31 ±5) kg/m2,FPG in group 1,from (8.4 ± 1.4) to (6.4 ±1.2) mmol/L;in group 2,from (8.2 ± 2.0) to (6.8 ± 1.5) mmol/L,2 hour post-meal blood sugar [group 1,(13.2±4.1) to (9.6±3.2) mmol/L;group 2,(12.2±3.2) to (10.6±2.8) mmol/L] and HbAlc (group 1,7.2％ ±1.2％ to5.5％ ±1.1％;group 2,7.1％ ±1.1％ to 5.9％ ±1.2％) decreased significantly in both groups (P ＜ 0.01).There was 72 (68％) remission cases of T2DM in 106 patients,there were no significant differences of T2DM remission and BMI between 2 groups at 6 months after surgery (P =0.617).Conclusions LSG leads to significant weight loss and T2DM control.