Prediction of production facility priorities using Back Propagation Neural Network for bus body building industries: a post pandemic research article.

The pandemic recession has caused enormous disturbances in many industrialized countries. The massive disruption of the supply chain of production is affecting manufacturing companies operating in and around India. Particularly the medium-sized bus body building works have been reduced, due to its compound anomalies. The integrated view of the production facility priorities is not an easy task. Since it is difficult for available labour to conduct an entire project, the completion of a production process is delayed. But still, the dilemma remains as to how production managers can correctly interpret the priorities of the facility. Indeed, this is a problem missing from the previous study. Fortunately, in the current competitive environment, it is essentially needed. This study has been used Back Propagation Neural Network (BPNN) approach for predicting production facility priorities. The experimental results confirm the suitability of the model for predicting priorities. A real-world problem is taken into account in making use of the model output. In this sense, this total solution facilitates production managers in assessing and enhancing the production facilities. The findings emphasize the priority of "equipment effectiveness, labour scheduling and communication" in order to strengthen the post-pandemic production facility.

Prediction of Equipment Effectiveness using Hybrid Moving Average-Adaptive Neuro Fuzzy Inference System (MA-ANFIS) for decision support in Bus Body Building Industry.

Managers are driven to accomplish significantly higher levels of operational performance due to the difficulty of today's dynamic production environment. Typically, the precision of production facilities and the efficiency of manufacturing systems are significant variables in productivity. Thus, predicting machine performance has become an inevitable challenge for production managers. However, the question of how managers can reliably assess the effectiveness of equipments for resource allocation remains unaddressed properly. This issue has received little attention in previous research, but it is important in today's manufacturing environment. This study introduces a hybrid moving average - adaptive neuro-fuzzy inference system (MA-ANFIS) to predict the possible effectiveness of equipment. Three real-world problems are considered when developing and evaluating three distinct equipment effectiveness prediction models. The evaluation confirms that the hybrid MA-ANFIS model based on Gaussian membership function outperforms other developed models. This comprehensive solution is packaged as a decision support system. This aids production managers in evaluating the equipment effectiveness, and effectively improving equipment's performance to reduce time and cost of bus body building.

Is there a role for upper gastrointestinal contrast study to predict the outcomes of sleeve gastrectomy? Lessons learnt from a prospective study.

CONTEXT: : The importance of upper gastrointestinal (UGI) contrast study following sleeve gastrectomy (SG) is equivocal. It can, however, yield anatomical and functional details, the significance of which mostly remains unknown. SETTINGS AND DESIGN: : This prospective, single-center study included SG patients between January 2018 and January 2019. MATERIALS AND METHODS: : UGI contrast study was done on post-operative day 1. The findings of the study namely gastroesophageal junction (GEJ) holdup time, presence of fundus, gastroduodenal emptying (GDE) time, and sleeve shape were compared with weight loss, improvement of glycosylated hemoglobin (HbA1c) and gastroesophageal reflux disease (GERD) symptoms at 3, 6, and 12 months follow-up. RESULTS: : There were 138 patients with 100% follow-up. Radiological sleeve patterns observed were: tubular (62.3%), superior (16.0%), and inferior (21.7%) pouches. GEJ holdup time had no effect on percentage total weight loss (%TWL) (P = 0.09) or HbA1c improvement (P = 0.077). The absence of fundus led to greater %TWL at 6 months (P = 0.048). GDE time <15 s led to higher %TWL (P = 0.028) and lower HbA1c (P = 0.010) at 12 months. Antrum size <2 cm was associated with higher %TWL (P = 0.022) and lower HbA1c level (P = 0.047) at 12 months. Vomiting and regurgitation were common with tubular sleeves. CONCLUSION: UGI contrast study can predict weight loss, HbA1c improvement, and GERD symptoms. The absence of fundus, small antrum, and rapid GDE are associated with better weight loss. HbA1c improvement is better with small antrum and rapid GDE. Tubular sleeve predisposes to vomiting and regurgitation.

The first modified Delphi consensus statement on sleeve gastrectomy.

INTRODUCTION: Sleeve gastrectomy (SG) is the commonest bariatric procedure worldwide. Yet there is significant variation in practice concerning its various aspects. This paper report results from the first modified Delphi consensus-building exercise on SG. METHODS: We established a committee of 54 globally recognized opinion makers in this field. The committee agreed to vote on several statements concerning SG. An agreement or disagreement amongst ≥ 70.0% experts was construed as a consensus. RESULTS: The committee achieved a consensus of agreement (n = 71) or disagreement (n = 7) for 78 out of 97 proposed statements after two rounds of voting. The committee agreed with 96.3% consensus that the characterization of SG as a purely restrictive procedure was inaccurate and there was 88.7% consensus that SG was not a suitable standalone, primary, surgical weight loss option for patients with Barrett's esophagus (BE) without dysplasia. There was an overwhelming consensus of 92.5% that the sleeve should be fashioned over an orogastric tube of 36-40 Fr and a 90.7% consensus that surgeons should stay at least 1 cm away from the angle of His. Remarkably, the committee agreed with 81.1% consensus that SG patients should undergo a screening endoscopy every 5 years after surgery to screen for BE. CONCLUSION: A multinational team of experts achieved consensus on several aspects of SG. The findings of this exercise should help improve the outcomes of SG, the commonest bariatric procedure worldwide, and guide future research on this topic.

Relevance of Posterior Gastric Vessel in Bariatric Surgery.

Posterior gastric vessel is commonly encountered (4-99%) during surgery of the stomach, spleen, and pancreas. Due to high variations in its origin, and course, it has not been unanimously described in literature. Its significance in bariatric surgery is largely neglected. We reviewed videos of 100 bariatric surgery cases done in our institute. This vessel was noted in 88 cases. We could identify the vessel in 54/63 LSG cases and all cases required division to free the fundus. It was identified in 34/37 RYGB cases. Thirty-one cases required lateralization while 3 cases required division due to more medial origin of the vessel. Its division or lateralization facilitates adequate mobilization of fundus to achieve the ideal configuration of sleeve in LSG and pouch in LRYGB.

Is Laparoscopic Roux-en-Y Gastric Bypass Still the Gold Standard Procedure for Indians? Mid- to Long-Term Outcomes from a Tertiary Care Center.

PURPOSE: Laparoscopic Roux-en-Y gastric bypass (RYGB) is the oldest and most widely performed bariatric surgery worldwide. There is, however, a scarcity of mid- to long-term data of RYGB, especially from the Indian subcontinent. MATERIALS AND METHODS: The study was a single-center, retrospective analysis from patients who underwent RYGB between January 2009 and November 2014 from a tertiary care center in India. Percent of total weight loss (%TWL) was taken as the primary outcome of the study. Secondary outcomes included type 2 diabetes mellitus (T2DM) remission, comorbidity resolution, revisional surgeries, and complications related to RYGB at 1 year, at 3 years, and during the long term, following surgery. Postoperative visits took place at 1 and 3 years, while the long-term outcome was at median 8.3 years (range 5.4-11.2 years), with a follow-up of 92.4% (488/528), 80.5% (424/527) and 69.5% (363/522), respectively. RESULTS: Out of 528 patients studied, 56% were females. The mean body mass index (BMI) was 40.6 ± 6.9 kg/m2. The %TWL in the long-term follow-up was 21.8 ± 11.3%. T2DM remission rates at 1 year, at 3 years, and during the long term were 84.5%, 70.0%, and 60.0%, respectively. Preoperative HBA1c (p = 0.002) and insulin usage (p = 0.016) had a significant predictive effect on T2DM remission. Gastroesophageal reflux disease (GERD) improved significantly (p < 0.001). Early (< 30 days) and late (> 30 days) complications were observed in 2.3% and 4.3% of the patients, respectively. CONCLUSION: Weight loss during mid to long-term follow-up was maintained in the majority of the patients after RYGB. However, a small proportion had significant weight regain in the long term. T2DM, GERD, and other comorbidities were well improved after RYGB.

Is the Current Micronutrient Supplementation Adequate in Preventing Deficiencies in Indian Patients? Short- and Mid-Term Comparison of Sleeve Gastrectomy and Roux-en-Y Gastric Bypass.

PURPOSE: Bariatric procedures reduce the capacity of the gut and alter the gastrointestinal transit time predisposing to micro-nutritional deficiencies. This study analyzed and compared the micro-nutritional parameters following laparoscopic sleeve gastrectomy (LSG) and Roux-en-Y gastric bypass (RYGB) in the Indian population. MATERIALS AND METHODS: This is a retrospective study of patients who underwent LSG or RYGB for morbid obesity at a tertiary care center between January 2015 and December 2016. The micronutrient parameters, namely, serum ferritin, vitamin B12, ionized calcium, vitamin D3, and parathormone (PTH) in the preoperative settings and subsequently at 1, 2, and 3 years were analyzed. RESULTS: A total of 390 patients were studied, of which 258 (66.15%) underwent LSG while 132 (33.85%) underwent RYGB. Baseline micronutrient parameters were comparable in the two groups. Anemia (58.1% vs. 59.1%), deficiencies of ferritin (31.7% vs. 34.3%), vitamin B12 (18.8% vs. 36.4%), ionized calcium (65.1% vs. 72.7%), vitamin D3 (95.3% vs. 90.9%), and secondary hyperparathyroidism (45.5% vs. 58.1%) were seen following LSG and RYGB at the end of 3 years, respectively. There was no significant difference found between LSG and RYGB in terms of micronutrient deficiencies studied, including rising in PTH at 1, 2, and 3 years. Vitamin D3 levels were significantly lower at 2 and 3 years following RYGB (p = 0.035 and p = 0.032, respectively). CONCLUSION: LSG and RYGB have comparable micronutrient deficiencies in the short- and mid-term except for vitamin D3, which is higher following RYGB. Long-term studies are needed to define optimum micronutrient supplement dosages for the Indian population.

Randomized Controlled Trial Comparing the Outcomes of Enhanced Recovery After Surgery and Standard Recovery Pathways in Laparoscopic Sleeve Gastrectomy.

PURPOSE: The enhanced recovery after surgery (ERAS) pathway is an evidence-based perioperative pathway that results in less pain, earlier recovery, and lower complication rates. Studies to prove their efficacy over standard recovery pathways in the Indian population are scarce. Our study intends to compare the outcomes of these pathways in the Indian community focusing on hospital stay, postoperative pain, and time for rescue analgesia. MATERIALS AND METHODS: This is a single-blinded RCT involving 112 patients who underwent laparoscopic sleeve gastrectomy (LSG). The groups were divided into ERAS and standard pathway arms by closed envelope technique. The primary outcome was the length of hospital stay, while the secondary outcomes included pain score; postoperative nausea, and vomiting (PONV); time for rescue analgesia; and ambulation. RESULTS: Of 112 patients included, 56 were allocated in the ERAS group, and the remaining 56 were included in the standard pathway group. We found no significant differences in the baseline characteristics between the two groups. Mean hospital stay was significantly lower in the ERAS group compared to the standard group (p = 0.003). In comparison to the standard group, ERAS patients were ambulated early, and the difference was highly significant (p < 0.001). Pain scores between the two groups showed a significant difference during the 4th hour and 8th hour. We also found a significant variation between the time for first rescue analgesia and the two groups (p < 0.001). CONCLUSION: Patients who followed ERAS protocol were found to have shortened hospital stay, decreased pain, early ambulation, and reduced need for rescue analgesia. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT03191318.

Trends and progress of bariatric and metabolic surgery in India.

Bariatric and metabolic surgery are being performed in India for 2 decades. Aim of this paper is to evaluate the changing clinical trends over the last 5 years and to present the other aspects helmed by Obesity and Metabolic Surgery Society of India (OSSI) to aid the growth of research, education, data management and registry, quality control, insurance-related issues and policy change. OSSI conducts an annual survey to collect data pertaining to numbers of surgical procedures. With the approval of the executive committee, data collected from 2014 to 2018 were retrieved and analysed. 20,242 surgical procedures were performed in 2018 which is an 86.7% increase from 2014. Laparoscopic sleeve gastrectomy continued to remain the most popular procedure, it's percent share saw a steady decline from 68 to 48%. One anastomosis gastric bypass showed an unprecedented growth from 14 to 34%. Numbers of laparoscopic Roux en y gastric bypass remained constant at 15-16%. OSSI has also initiated a COE program along with training fellowships and focus on registry and inclusion in insurance coverage. National trends over the past 5 years in bariatric surgery have shown emergence of newer procedures like OAGB, although LSG continues to be the most popular procedure performed These trends give an insight on how the field is evolving and the implications for any distinctive requirements unique to this region These will lay out important directives for not only ensuring good treatment outcomes but also increasing awareness about the disease on the whole.

OSSI (Obesity and Metabolic Surgery Society of India) Guidelines for Patient and Procedure Selection for Bariatric and Metabolic Surgery.

BACKGROUND: India is the largest hub for bariatric and metabolic surgery in Asia. OSSI is committed to improve the quality of care and set the standards for its practice in India. METHODS: The first draft of OSSI guidelines was prepared by the secretary, Dr. Praveen Raj under the guidance of current President, Dr. Arun Prasad. All executive council members were given voting privileges, and the proposed guidelines were circulated on email for approval of the executive council. Guidelines were finalized after 100% agreement from all voting members and were also circulated among all OSSI members for their suggestions. RESULTS: OSSI upholds the BMI criteria for bariatric and metabolic surgery of 2011 IFSO-APC guidelines. In addition to this, we recognize that waist circumference of ≥ 80 cm in females and ≥ 90 cm in males along with obesity related co-morbidities may be considered for surgery. In addition to standard procedures as recommended by IFSO, OSSI acknowledges the additional procedures, and a review of literature for these procedures is presented in the discussion. CONCLUSION: The burden of obesity in India is one of the highest in the world and with numbers of bariatric and metabolic procedures rising rapidly; there is a need for country specific guidelines. The Indian population is unique in its phenotype, genotype and nutritional make up. This document enlists guidelines for surgeons and allied health practitioners as also multiple other stake-holders like primary health physicians, policy makers, insurance companies and the Indian government.

Impact of Bariatric Surgery on Female Reproductive Health and Maternal Outcomes.

INTRODUCTION: Obesity has a derogatory effect on female reproductive health. Obesity contributes to difficulty in natural conception, increased risk of pregnancy-associated complications, miscarriages, congenital anomalies, and also the long-term negative impact on both mother and the child. OBJECTIVES: Our study aimed to analyze and assess the reproductive health-associated outcomes of females who underwent bariatric surgery. METHODS: We performed a retrospective analysis from a prospectively collected database from June 2013 to June2016. Out of 71 females studied, 45 patients (63.5%) had completed 3 years of follow-up. The data were collected from inpatient and outpatient records. Patients were studied under three groups (A, patients with polycystic ovarian disease (PCOD) symptoms; B, patients with primary infertility; and C, patients who conceived after bariatric surgery that were included in groups A and B). RESULTS: Out of 45 patients studied, 40 patients underwent laparoscopic sleeve gastrectomy (LSG), four patients underwent laparoscopic Roux-en-Y gastric bypass (RYGB), and one patient underwent laparoscopic adjustable gastric banding (LAGB). The mean BMI of the patients was 43.64 ± 6.8 kg/m2. PCOD symptoms improved symptomatically (p = 0.001) after surgery in the group. Seven (43.75%) primary infertility patients conceived after surgery. Three (42.9%) patients conceived naturally while 4 (57.1%) conceived with ART in group B. Out of total population of 45 in group C, percentages of patients who delivered baby with short gestational age (SGA), low birth weight (LBW), normal vaginal deliveries (NVD), and maternal anemia were 63.15%,47.3%,73.4%, and26.3%, respectively. CONCLUSION: Obesity is closely associated with primary infertility and PCOD. Menstrual abnormalities associated with PCOD significantly improve after bariatric surgery with significant improvement in fertility along with maternal outcomes.

Gastroesophageal reflux-related physiologic changes after sleeve gastrectomy and Roux-en-Y gastric bypass: a prospective comparative study.

BACKGROUND: The development of gastroesophageal reflux disease (GERD) after laparoscopic sleeve gastrectomy (LSG) is a major concern as it affects the quality of life of the patients and potentially exposes them to the complications of GERD. The reported incidence of GERD after LSG is up to 35%. Laparoscopic Roux-en-Y gastric bypass (LRYGB) is considered the procedure of choice for patients with morbid obesity with GERD but objective evidence based on physiologic studies for the same are limited. OBJECTIVE: The objectives of the study were to determine the physiologic changes related to gastroesophageal reflux based on symptoms index, 24-hour pH study, impedance, and manometry after LSG and LRYGB. SETTINGS: Tertiary care teaching hospital, India. METHODS: This registered study (CTRI/2017/06/008834) is a prospective, nonrandomized, open-label clinical trial comparing the incidence of GERD after LSG and LRYGB. In this study, non-GERD patients were evaluated for GERD based on clinical questionnaires, 24-hour pH study, and impedance manometry preoperatively and 6 months postoperatively. RESULTS: Thirty patients underwent LSG, and 16 patients underwent LRYGB. The mean DeMeester score increased from 10.9 ± 11.8 to 40.2 ± 38.6 (P = .006) after LSG. The incidence of GERD after LSG was 66.6%. The increase in DeMeester score from 9.5 ± 4.6 to 12.2 ± 17.2 after LRYGB was not significant (P = .7). There was a significant increase in the nonacid reflux both after LSG and LRYGB. CONCLUSION: The incidence of GERD after LSG is high, making it a contraindication for LSG. LRYGB remains the preferred procedure for patients with GERD. However, more studies are needed to understand the physiologic changes in patients with preexisting GERD.

Concomitant intraperitoneal onlay mesh repair with endoscopic component separation and sleeve gastrectomy.

Bariatric surgery can be safely combined with laparoscopic intraperitoneal onlay mesh (IPOM) repair. In case of large ventral hernias, laparoendoscopic component separation can also be combined to achieve tension-free closure of the defect. Concomitant bariatric surgery and hernia repair also offer the additional benefit of reduction in recurrence of hernias as obesity, one of the risk factors, is treated in the process. We present a case of 60-year-old man with a body mass index of 45.3 kg/m2 with a large recurrent ventral hernia. We performed a lap sleeve gastrectomy with laparoendoscopic anterior component separation with IPOM. The operative steps included hernia contents reduction, conventional sleeve gastrectomy, anterior component separation on either side, intra-corporeal closure of hernia defect and placement of a composite mesh. Patient recovery was uneventful. Concomitant bariatric surgery with laparoendoscopic component separation with IPOM may be safe, but more studies are required.

Deep vein thrombosis prophylaxis: Are we overdoing? An Asian survey on trends in bariatric surgery with a systematic review of literature.

BACKGROUND: Obesity is a risk factor for deep vein thrombosis (DVT) and venous thromboembolism (VTE). VTE is the most common cause of mortality in patients undergoing bariatric surgery. There is considerable variation in practice regarding methods, dosages and duration of prophylaxis in this patient population. Most of the literature is based on Western patients and specific guidelines for Asians do not exist. METHODS: We conducted a web-based survey amongst 11 surgeons from high-volume centres in Asia regarding their DVT prophylaxis measures in patients undergoing bariatric surgery. We collected and analysed the data. RESULTS: The reported incidence of DVT and VTE ranged from 0% to 0.2%. Most surgeons (63.64%) preferred to use both mechanical and chemoprophylaxis with low-molecular-weight heparin being the most preferred form of chemoprophylaxis (81.82%). There was an equal distribution of weight-based, body mass index-based and fixed-dose regimens. Duration of chemoprophylaxis ranged from 3-5 days after surgery to 2 weeks after surgery. For high-risk patients, 60% surgeons preferred to start chemoprophylaxis at least 1 week before surgery. Routine use of inferior vena cava filters in high-risk patients was not preferred with some surgeons adopting a selective use (36.36%). CONCLUSION: The purpose of this survey was to understand the trends in DVT prophylaxis amongst different high-volume bariatric centres in Asia and to relate the same with the existing literature on the different steps in prophylaxis. There is, however, a need for consensus guidelines for DVT prophylaxis in Asian obese.

Laparoscopic excision of rare case of recurrent presacral teratoma.

Tumours of the presacral space are rare to present. Most of them are benign masses, very rarely malignant. Surgery is the mainstay of treatment as it establishes the diagnosis and prevents the adverse consequences associated with malignant degeneration and secondary bacterial infection. Their surgical excision is often difficult because of their anatomic location. Very few cases have been reported so far concerning a laparoscopic management of presacral tumour. We hereby present a young girl with recurrent presacral teratoma. She underwent laparoscopic successful excision of tumour with uneventful post-operative recovery. Here, we are highlighting the importance of laparoscopic approach for this scenario in terms additional advantages of minimally invasive approach such as better visualisation of the deep structures in the narrow presacral space, precise dissection in a limited space between the tumour and neighbouring structures with avoiding injury to neurovascular structure.

A case report of modified laparoscopic keyhole plus repair for parastomal hernia following ileal conduit.

Parastomal hernia is one of the most common but challenging complication after stoma formation. Modified Sugarbaker technique is the recommended procedure for repair parastomal hernia, however, keyhole repair technique had also been used in certain instances. In cases of parastomal hernia following ileal conduit procedure, the Sugarbaker technique is been described, although with associated theoretical risk of conduit failure. We are reporting a case of post-radical cystectomy with ileal conduit presented with symptomatic large parastomal hernia. Laparoscopic modified keyhole plus repair has been done successfully in this patient with no recurrence in 2 years of follow-up. The purpose of our case report is to describe our novel modification of the laparoscopic keyhole technique which can be a feasible and acceptable alternative surgical method in these types of patients.

Role of routine pre-operative screening venous duplex ultrasound in morbidly obese patients undergoing bariatric surgery.

BACKGROUND/AIMS: It is well established that obesity is a strongly associated risk factor for post-operative deep vein thrombosis (DVT). Physical effects and pro-thrombotic, pro-inflammatory and hypofibrinolytic effects of severe obesity may predispose to idiopathic DVT (pre-operatively) because of which bariatric patients are routinely screened before surgery. The aim of this study was to audit the use of routine screening venous duplex ultrasound in morbidly obese patients before undergoing bariatric surgery. METHODS: We retrospectively reviewed 180 patients who underwent bariatric surgery from August 2013 to August 2014 who had undergone pre-operative screening bilateral lower-extremity venous duplex ultrasound for DVT. Data were collected on patient's demographics, history of venous thromboembolism, prior surgeries and duplex ultrasound details of the status of the deep veins and superficial veins of the lower limbs. RESULTS: No patients had symptoms or signs of DVT pre-operatively. No patient gave history of DVT. No patient was found to have iliac, femoral or popliteal vein thrombosis. Superficial venous disease was found in 17 (8%). One patient had a right lower limb venous ulcer. CONCLUSION: Thromboembolic problems in the morbidly obese before bariatric surgery are infrequent, and screening venous duplex ultrasound can be done in high-risk patients only.

Laparoscopic management of 'Y-shaped' gallbladder duplication with review of literature.

Gallbladder duplication is a rare congenital malformation that occurs in about 1:4000 cases. Congenital anomalies of the gallbladder and anatomical variations of their position are associated with an increased risk of complications during laparoscopic cholecystectomy. We report a case of gallbladder duplication with symptomatic cholelithiasis, who presented with recurrent episodes of biliary colic and subsequently underwent laparoscopic cholecystectomy with intraoperative cholangiography. We also discussed in brief about the available literature support in relation to incidence of this disorder, imaging modalities used, intraoperative strategies and recommended measures for safe outcomes.

Laparoscopic management of symptomatic residual appendicular tip: A rare case report.

Appendectomy is one of the most common emergency surgical procedures. Stump appendicitis is well-recognised entity has been described in the literature. Still, with recent advance in imaging technique, it remains as a clinical challenge for diagnosis and effective treatment. We present a case of 13-year-old boy who underwent laparoscopic appendectomy 3 months back and presented to us with acute abdomen associated with vomiting and fever. Imaging revealed the presence of a tubular residual inflamed tip of the appendix of size 4 cm laying in paracaecal position with approximately 50cc purulent collection around it. Subsequently, the patient underwent successful laparoscopic completion appendectomy with uneventful postoperative recovery. Histopathological examination confirmed that resected structure as an inflammatory residual appendix. For our knowledge, after an extensive search of English literature, no study had described about laparoscopic completion appendectomy for residual tip appendicitis. We authors hereby would like to emphasise the importance of complete removal of appendix not only stump part but also tip, especially in certain locations such as paracaecal, retrocaecal and subhepatic. Laparoscopy can be an option for the management of these patients, in selected cases, and with available expertise.