Background Recently the performance rate of one anastomosis gastric bypass (OAGB) bariatric surgery has increased. Bile reflux is on of common considered complication of OAGB challenging surgeon. Methods We searched English full text with keyword “bile reflux” AND “OAGB” OR “one anastomosis gastric bypass” OR “SAGB” OR “single anastomosis gastric bypass” that published from January 1st, 2000 to December 31st, 2020 in PubMed, EMBASE, Google scholar and Cochrane Library. We included prospective or retrospective systematic review, review, clinical, and meta-analysis human article that its full text was available and focused on bile reflux after OAGB/SAGB as the fundamental performed bariatric surgery. Results A total of 1259 articles were analyzed, of which 5 were included. Analysis of number articles by year revealed that 2019 and 2020 was the highest number of published articles (n = 232; 68%). Study type analysis revealed that review studies and clinical research (n = 62; 18.2%) were the most frequent study types. Reported data on bile reflux after OAGB had diversity. Implicitly, postoperative incidence of bile reflux differed from 7.8 to 55.5%. General consensus was not existed among authors to consider the OAGB as the first suspect leading to postoperative bile reflux among other bariatric surgery types. Conclusion Although surgeons prefer to conduct OAGB procedure because of its easier surgical approach needing just one anastomosis formation it is not virtually clear that is the procedure costly benefitted regarding bile reflux outcomes.

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Introduction: Percutaneous endoscopic gastrostomy (PEG) is the most common way of inserting a gastrostomy tube. If PEG is not appropriate for a patient, then the laparoscopic or open technique should be used. Here, we introduce a new laparoscopic technique for inserting a gastrostomy tube. Material and Surgical Technique: We used this new laparoscopic approach in 21 patients for whom PEG was not suitable. After marking on the abdominal skin and inserting the trocars, two 2-0 silk sutures were passed. Two stitches were placed 2 cm apart in the stomach with one hand. Each suture was pulled out with the fascia closure, the stomach was pulled out with a Babcock, and a purse-string suture using a round 2-0 silk suture was placed outside the stomach, creating a mushroom-retained gastrostomy. Conclusion: This new laparoscopic technique is minimally invasive. It provides full control through only two trocars and required smaller incisions than common laparoscopic approaches. This method can be used to insert a gastrostomy tube in indicated patients when PEG placement is not suitable.

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In medical literature, studies are divided into two categories; experimental and observational settings. Experimental studies, entitled randomized controlled trials could test the relationship between exposure and outcome experimentally via control group and random allocation. Observational settings include either analytical or descriptive studies. Descriptive studies consist of case reports and case series that are helpful in present the experience of a case or a series of cases with similar diagnoses in detail which results in hypothesis generation. Cross-sectional studies, as analytical designs, are not capable to survey the temporality of exposure and outcome as simultaneously exposure and outcome status are measured. In case-control studies, subjects follow back from outcome to exposure. The rare diseases are recommended to study using case-control setting to save expenses and time. Both exposure measurement and patient selection is before disease detection in cohort studies. Therefore, they are inefficient for rare diseases or diseases with long latency. Cohort studies are time consuming with high cost and loss to follow-up. This paper elaborately reviews the features, advantages, and disadvantages of different types of observational and experimental studies.

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Background: Prospective studies evaluating outcome of laparoscopic Heller myotomy and Dor fundoplication for esophageal achalasia are less in Asian people. Objectives: This study conducted to evaluate the results of laparoscopic cardiomyotomy and partial fundoplication for achalasia. Patients and Methods: Thirty patients who underwent Heller myotomy for achalasia via laparoscopy in Alzahra hospital Isfahan, Iran were recorded prospectively (2009 -2013). Median follow-up was 18 months. Symptoms including dysphagia, regurgitation, chest pain and weight loss were recorded before and after operation. Also, previous treatment for achalasia such as endoscopic pneumatic dilatations and intrasphincteric injection of botulinum toxin or other component, duration of symptoms and duration and complication of operation was recorded. Results: Among 30 patients, there were 13 (43.3%) females and 17 (56.7%) males, and mean age was 40.8 years (range, 20 -68 years).

Background Laparoscopic sleeve gastrectomy(LSG) is the most popular bariatric surgery worldwide. Postoperative de-novo acid reflux is one of the major common complications of the procedure. Different additive anti-reflux surgical techniques have been tried to decrease the complication although no favorable outcome is obtained. This study was conducted to evaluate effects of concurrent cruroplasty during LSG on postoperative de-novo acid reflux incidence rate. Methods In current participant-blinded randomised controlled trial total of 80 subjects who were candidate for LSG were enrolled from the September 2018 to the December 2019. Following matching patients by gender and age, simple randomization method was held to allocate participants to LSG alone and LSG + cruroplasty groups with equal 40 members in each. Demographic data, length of hospital stay, and operation time was registered. Presence of acid reflux was looked by using gastroesophageal reflux disease-health related quality of life(GERD-HRQL) questionnaire prior and 6 months after surgery in follow-up visit. Results Finally 12/28 and 14/26 male/females with 38.5 ± 10.7 and 39.7 ± 8.2 years of age were recruited in LSG alone and LSG + cruroplasty, respectively.(p > 0.05) The length of operative time was significantly shorter in LSG alone(p < 0.01) although no obvious difference was existed in length of hospital stay between groups.(p = 0.7) Postoperative de-novo acid reflux also was not considerably lesser after cruroplasty compared with controls.(p = 0.1) The GERD-HRQL scores were not remarkable between subjects of study groups.(p > 0.05). Conclusion Equipping LSG with concurrent cruroplasty to diminish postoperative de-novo gastroesophageal acid reflux is not effective and not recommended in absence of other indications.