Biliary reflux after laparoscopic modified antireflux monoanastomotic gastric bypass surgery

Aim. Determination of biliary reflux in patients with morbid obesity after a single-anastomotic gastric bypass operation performed in the clinic's modification and according to the classical Roux-en-Y gastric bypass technique. Development of diagnostic criteria for biliary reflux Materials and methods. The results of treatment of 36 patients with morbid obesity who underwent bypass surgery were studied. The patients are divided into two groups. Clinically modified laparoscopic monoanastomotic gastric bypass surgery was performed in 25 patients (main group). The control group included 11 patients after the standard technique of Roux-en-Y laparoscopic gastric bypass. Inclusion criteria were: persons of both sexes aged 18-60 years with morbid obesity and a body mass index of 40 or more, as well as 35 or more in the presence of comorbid diseases (type 2 diabetes mellitus, arterial hypertension, dyslipidemia, sleep apnea syndrome). In both groups, impedance pH measurements were performed in the postoperative period. Statistical processing was performed using the Statistica 13.0 software package using parametric and nonparametric statistical methods. Results: Clinical manifestations of the enterogastric biliary reflex were found in both groups; in addition, clinical manifestations of the corresponding symptoms were noted by patients of both groups. The analysis of daily pH-metry in the studied groups showed that in the esophagus the time with pH <4 in the main group 2.83 (1.55; 3.95)% 3.00 (2.30; 3.50)% in the control group, time with pH 4-6.9 (physiological for the esophagus) 92.40 (90.65; 94.20)% and 94.10 (89.80; 95.50)%, respectively, time with pH> 7 (weak alkaline) was 4.80 (3.45; 5.85)% and in the control group 2.90 (1.20; 7.20)%. There was no statistically significant difference in these indicators (p> 0.05). Conclusions. Monoanastomotic gastric bypass surgery in the modification of the clinic has the same positive properties as the Rouen-Wye technique, allowing you to avoid the risks associated with possible pathological reflux of bile into the esophagus. Patients who have undergone mini-gastric bypass surgery require a thorough examination with fibrogastroscopy in combination with pH impedance measurement at least 1 time per year in order to determine biliary reflux and morphological changes both in the lumen of the esophagus and in the stomach stump. The level of quality of life of patients after surgery in the control group and the main group does not significantly differ, as evidenced by the results of the questionnaire survey using the GERG Q questionnaire, which indicates the effectiveness of the methodology of laparoscopic monoanastomotic gastric bypass surgery modified in the clinic. Key words: morbid obesity, gastric bypass surgery, surgical treatment, mini-gastric bypass, biliary reflux.

Experimental model for the evaluation of metabolic status after gastric bypass in obese rats

Objective: Obesity is an exceedingly current pathology with many clinical, molecular, and psychological implications. The number of obese people has doubled in the past ten years, and we can observe an early onset of obesity. Bariatric surgery is an effective treatment for severe obesity and type 2 diabetes mellitus (T2DM); Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG) are the two most prevalent types of this procedure . Nevertheless, no single mechanism has emerged that thoroughly explains the metabolic benefit and subsequent long-term effects after surgery. Webster's new collegiate dictionary defines the noun model as: 'a descriptive or analogy used to help visualize something that cannot be directly observed.' Sustained by this definition, the animal models in nutritional research are fundamental to improve human conditions. Due to the recent boost in experimental surgery, our aim in this study is to set the main technical characteristics of the gastric bypass operation and specific animal care in the metabolic surgery field we have been undertaking in our center. Materials and methods: We chose Wistar rats fed with a high caloric diet (HCD) 82g / 100 g fat, 53/100 g saturated fat, 64/100 g carbohydrates. After 7-15 weeks of this diet, depending on the protocol understudy, a consistent three-fold greater weight gain is achieved than the usual range of the free eating chow. After approximately three months on an HCD, the obese rats manifest biochemical features of the metabolic syndrome. Results: The weight loss for group B (By-pass) was 125 ± 16.16 g, and for group BS (By-pass + Sulodexid), it was 133.10 ± 14.38 g. Although the weight loss was higher in group BS, it is not statistically significantly higher than in group B (p = 0.345), despite administering a pharmacologically active substance in group BS. Although small (approximately 40-50 g), the difference between the control group and groups B and BS is statistically significant with p = 0.016 and 0.026 and Pearson index of 0.674 and 0.628, respectively. Statistical significance also kept the difference between group C and group S (p = 0.028, Pearson Coefficient = 0.621). Conclusions: First of all, Metabolic surgery is the most effective weight-loss method and improvement or even remission of some diseases associated with obesity. Like today's high-calorie diet, the diet administered, mostly of adolescents, generates both obesity and its associated diseases: diabetes, hypertriglyceridemia, hypercholesterolism, thus increasing mortality and overall morbidity. Second, metabolic surgery radically improves the parameters targeting obesity (weight,% EBWL) and its associated conditions: diabetes mellitus, hypertriglyceridemia, hypercholesterolemia, strongly associated with decreasing life expectancy of the general population. Parameters targeted by gastric bypass: glycemia, TGL, CHO, hepatic steatosis, testicular atrophy registering significant improvements.

Comparative study between Single Anastomosis Duodeno–Ileal Bypass with Sleeve Gastrectomy and Mini-Gastric Bypass Surgery for the Treatment of Morbid Obesity

Background Metabolic and bariatric surgery is a proven therapy for the treatment of obesity and its related comorbidities. Malabsorptive operations usually offer a higher rate of metabolic improvement, despite higher rate of complications and secondary effects. Objectives To compare Single Anastomosis Duodeno–Ileal bypass with Sleeve gastrectomy (SADIS) and Mini-Gastric Bypass operation as two types of bariatric surgeries with regard to weight loss, metabolic outcome and nutritional deficiencies within one year of post-operative follow up. Methods We performed a prospective comparison of 40 morbidly obese patients submitted to SADIS (n. = 20) and MGB (n. = 20) between July 2016 to July 2017 with one year of postoperative follow up. Results The groups were nearly similar in terms of age and sex. The SADI-S group had BMI of (47.4 vs 46.1) with 100% prevalence of DM in both groups, hypertension in SADIS 70% vs 65% in MGB and almost equal incidence of dyslipidemia. The SADI-S group presented markedly higher percentage of EWL of 91.4% vs 71.6% after one year. Control of DM, with HbA1c below 6%, was obtained in 85% in both groups with more decrease in mean HbA1c of SADIS being 5.44 vs 5.815 in MGB after one year. Most patients abandoned antidiabetic therapy or at least were controlled by less medications and lower doses. The SADI-S group presented remission of hypertension by 90% of patients as those of MGB but with far less medications. Lipid profile improvement was noticed in both groups with slightly higher resolution in SADIS group by 95% vs 90% for total cholesterol, 85% in both groups for T.G, 80% vs 85% for LDL, 65% vs 70% for HDL in SADIS and MGB patients respectively. Although the nutritional deficiency is still a considerable concern after SADIS, ours study didn’t show intense difference from MGB provided that proper vitamin supplementation and patient compliance are maintained postoperatively. Conclusion When compared to gastric bypass, SADI-S appears to be an effective and safe therapeutic technique with excellent short-term results for treating morbid obesity and its associated comorbidities with a low rate of nutritional complications. Proving its safety and efficacy by further studies will grant it more popularity in the future.