Metabolic and Bariatric Surgery Utilization Trends in the United States: Evidence from 2012-2021 National Electronic Medical Records Data

Objectives: Bariatric surgery has evolved over the past two decades yet assessing trends of bariatric surgery utilization in the growing eligible population is lacking.This study aimed to update the trends in bariatric surgery utilization, changes in types of procedures performed, and the characteristics of patients who underwent bariatric surgery in the US, using real-world data. Method(s): This cross-sectional study was conducted using the TriNetX, a federated electronic medical records network from 2012 to 2021, for adult patients 18 years old or older who had bariatric surgery. Descriptive statistical analysis was conducted to assess patients' demographics and characteristics. Annual secular trend analyses were conducted for the annual rate of bariatric surgery, and the specific procedural types and proportions of laparoscopic surgeries. Result(s): A steady increase in the number of procedures performed in the US over the first six years of the study, a plateau for the following two years, and then a decline in 2020 and 2021 (during the coronavirus-19 pandemic). The annual rate of bariatric surgery was lowest in 2012 at 59.2 and highest in 2018 at 79.6 surgeries per 100,000 adults. During the study period, 96.2% to 98.8% of procedures performed annually were conducted laparoscopically as opposed to the open technique. Beginning in 2012, the Roux-en-Y (RYGB) procedure fell to represent only 17.1% of cases in 2018, along with a sharp decline in the adjustable gastric band (AGB) procedure, replaced by a sharp increase in the sleeve gastrectomy (SG) procedure to represent over 74% of cases in 2018. Conclusion(s): Bariatric surgery utilization in the US showed a moderate decline in the number of RYGB procedures, which was offset by a substantial increase in the number of SG procedures and a precipitous drop in the annual number of AGB procedures.Copyright © 2023

Fighting the obesity pandemic during the COVID-19 pandemic.

BACKGROUND: The COVID-19 pandemic created delays in surgical care. The population with obesity has a high risk of death from COVID-19. Prior literature shows the most effective way to combat obesity is by weight loss surgery. At different times throughout the COVID-19 pandemic, elective inpatient surgeries have been halted due to bed availability. Recognizing that major complications following bariatric surgery are extremely low (bleeding 0-4%, anastomotic leaks 0.8%), we felt outpatient bariatric surgery would be safe for low-risk patients. Complications such as DVT, PE, infection, and anastomotic leaks typically present after 7 days postoperatively, well outside the usual length of stay. Bleeding events, severe postoperative nausea, and dehydration typically occur in the first few days postoperatively. We designed a pathway focused on detecting and preventing these early post-op complications to allow safe outpatient bariatric surgery. METHODS: We used a preoperative evaluation tool to risk stratify bariatric patients. During a 16-month period, 89 patients were identified as low risk for outpatient surgery. We designed a postoperative protocol that included IV hydration and PO intake goals to meet a safe discharge. We sent patients home with a pulse oximeter and had them self-monitor their pulse and oxygen saturation. We called all patients at 10 pm for a postoperative assessment and report of their vitals. Patients returned to clinic the following day and were seen by a provider, received IV hydration, and labs were drawn. RESULTS: 80 of 89 patients (89.8%) were successfully discharged on POD 0. 3 patients were readmitted within 30 days. We had zero deaths in our study cohort and no morbidity that would have been prevented with postoperative admission. CONCLUSION: We demonstrate that by identifying low-risk patients for outpatient bariatric surgery and by implementing remote monitoring of vitals early outpatient follow-up, we were able to safely perform outpatient bariatric surgery.

Impact of the COVID-19 Pandemic on Inpatient and Outpatient Utilization of Bariatric Surgery.

BACKGROUND: During the COVID-19 pandemic, deferral of inpatient elective surgical procedures served as a primary mechanism to increase surge inpatient capacity. Given the benefit of bariatric surgery on treating obesity and associated comorbidities, decreased access to bariatric surgery may have long-term public health consequences. Understanding the extent of the disruption of the COVID-19 pandemic to bariatric surgery will help health systems plan for appropriate access. MATERIALS AND METHODS: This is an observational cohort study using the PINC AI Healthcare Database from 1/1/2019-6/31/2021. A Poisson regression model with patient characteristics and hospital-fixed effects was used to assess the relative monthly within-hospital reduction in surgical encounters, variations by race and ethnicity, and shift from inpatient to outpatient procedures. A multivariate linear probability model was used to assess the change in 30-day readmissions from 2020 and 2021 compared to 2019. RESULTS: Among 309 hospitals, there were 46,539 bariatric procedures conducted in 2019 with a 14.8% reduction in volume to 39,641 procedures in 2020. There were 22,642 bariatric procedures observed from January to June of 2021. The most pronounced decrease in volume occurred in April with an 89.7% relative reduction from 2019. Black and Hispanic patients were more likely to receive bariatric surgery after the height of the pandemic compared to white patients. A clinically significant shift from inpatient to outpatient bariatric surgical procedures was not observed. Relative to 2019, there were no significant differences in bariatric surgical readmission rates. CONCLUSION: During the pandemic there was a sizable decrease in bariatric surgical volume. There did not appear to be disparities in access to bariatric surgery for minority patients. We did not observe a meaningful shift toward outpatient bariatric surgical procedures. Post-pandemic, monitoring is needed to assess if hospitals have been able to meet the demand for bariatric surgical procedures.

Fondaparinux Sodium: Recent Advances in the Management of Thrombosis.

Fondaparinux sodium is a chemically synthesized selective factor Xa inhibitor approved for the prevention and treatment of venous thromboembolic events, that is, deep vein thrombosis, pulmonary embolism, and superficial vein thrombosis, in acutely ill (including those affected by COVID-19 or cancer patients) and those undergoing surgeries. Since its approval in 2002, the efficacy and safety of fondaparinux is well demonstrated by many clinical studies, establishing the value of fondaparinux in clinical practice. Some of the advantages with fondaparinux are its chemical nature of synthesis, minimal risk of contamination, 100% absolute bioavailability subcutaneously, instant onset of action, a long half-life, direct renal excretion, fewer adverse reactions when compared with direct oral anticoagulants, and being an ideal alternative in conditions where oral anticoagulants are not approved for use or in patients intolerant to low molecular weight heparins (LMWH). In the last decade, the real-world use of fondaparinux has been explored in other conditions such as acute coronary syndromes, bariatric surgery, in patients developing vaccine-induced immune thrombotic thrombocytopenia (VITT) and in pregnant women with heparin-induced thrombocytopenia (HIT), or those intolerant to LMWH. The emerging data from these studies have culminated in recent updates in the guidelines that recommend the use of fondaparinux under various conditions. This paper aims to review the recent data and the subsequent updates in the recommendations of various guidelines on the use of fondaparinux sodium.

Primary Care Physicians' Knowledge, Attitude and Practice towards Bariatric Operations in the Kingdom of Bahrain

Background: Obesity is an epidemic treatable disease. In Bahrain, the prevalence of obesity was 36.2%. Bariatric surgery should be considered for patients with BMI >= 40, or >= 30 with obesity-related comorbidities. Family physicians have a key role in identifying and counseling patients who may qualify for bariatric surgery. The most common reason for physicians' refusal of referral for bariatric surgeries is fear of complications followed by concern of ineffective weight loss following the surgery. Doctors are not comfortable providing post bariatric operation care. Aim(s): To study the PCPs' knowledge, attitude and practice towards bariatric surgeries in the kingdom of Bahrain. Method(s): this is a cross-sectional study of a convenient sample of physicians working in the Kingdom of Bahrain health centers, using an electronic and manual questionnaire to test the knowledge, attitude and practice towards bariatric surgery. Result(s): The sample included a total of 222 participants. 56.1% agreed that the BMI >= 40 without weight related comorbidities is an indication for bariatric surgery and 92.3% of them referred patients for bariatric surgery, with BMI (88.6%) as the most influential factor followed by presence of comorbidities (87.8%). On the other hand, lack of resources was the main cause for not referring patient for bariatric surgery (29.4%) followed by concerns with follow up (23.5%). 80.6% are comfortable to initiate conversations with their patients about bariatric surgery, while 36.1% feel comfortable explaining the procedural options to a patient. 83.8% agreed that additional medical education in bariatric surgical care would be useful. Conclusion(s): Primary care physicians showed well knowledge about the referral criteria to bariatric surgeries and that's reflected by the high referral rate (92.3%). But there is a gap in the knowledge mean score across different age groups and experience. Less than half of the physicians are not comfortable dealing with patients. Continuous medical education is essential to address the gap and to establish comprehensive obesity management guidelines for primary care physicians.Copyright © 2023, Bahrain Medical Bulletin. All rights reserved.

Bariatric surgery provision in response to the COVID-19 pandemic: retrospective cohort study of a national registry.

BACKGROUND: When surgery resumed following the outbreak of the COVID-19 pandemic, guidelines recommended the prioritization of patients with greater obesity-related co-morbidities and/or higher body mass index. OBJECTIVE: The aim of this study was to record the effect of the pandemic on total number, patient demographics, and perioperative outcomes of elective bariatric surgery patients in the United Kingdom. SETTING AND METHODS: The United Kingdom National Bariatric Surgical Registry was used to identify patients who underwent elective bariatric surgery during the pandemic (1 yr from April 1, 2020). Characteristics of this group were compared with those of a pre-pandemic cohort. Primary outcomes were case volume, case mix, and providers. National Health Service cases were analyzed for baseline health status and perioperative outcomes. Fisher exact, χ2, and Student t tests were used as appropriate. RESULTS: The total number of cases decreased to one third of pre-pandemic volume (8615 to 2930). The decrease in operating volume varied, with 36 hospitals (45%) experiencing a 75%-100% reduction. Cases performed in the National Health Service fell from 74% to 53% (P < .0001). There was no change in baseline body mass index (45.2 ± 8.3 kg/m2 from 45.5 ± 8.3 kg/m2; P = .23) or prevalence of type 2 diabetes (26% from 26%; P = .99). Length of stay (median 2 d) and surgical complication rate (1.4% from 2.0%; relative risk = .71; 95% CI .45-1.12; P = .13) were unchanged. CONCLUSIONS: In the context of a dramatic reduction in elective bariatric surgery due to the COVID-19 pandemic, patients with more severe co-morbidities were not prioritized for surgery. These findings should inform preparation for future crises.

Diazoxide in the Treatment of Asymptomatic Refractory Hypoglycemia in End Stage Renal Disease

Introduction: Diabetic patients with end-stage renal disease (ESRD) treated with insulin or any other diabetic agent show high variations in their glucose metabolism, lower insulin clearance level, and uncertain accuracy of glycemic control measurements. Therefore, these patients are at a greater risk of developing hypoglycemia. Diazoxide use in the treatment of spontaneous and refractory hypoglycemia in this population has not been well documented. We report a case of a young diabetic male that has been successfully treated with diazoxide for his asymptomatic refractory hypoglycemic episodes. Case Description: A young man with type 2 diabetes mellitus complicated by diabetic nephropathy, on hemodialysis for ESRD, presented with shortness of breath due to COVID pneumonia. After resolution of his infection, he was noted to have recurrent asymptomatic hypoglycemic episodes, although he has been off his diabetes medications for the past few years due to worsening of his kidney function. His oral intake was adequate and there was no concern for malnutrition, or any substance use. From the testing performed, we were able to exclude exogenous insulin or insulin secretagogues use and the presence of insulin antibodies. Insulin and noninsulin (insulin-like growth factor) mediated mechanisms were also ruled out. Since he was having recurrent and refractory asymptomatic hypoglycemic episodes and to minimize the need for supplemental dextrose containing fluids, he was started on diazoxide at 3 mg/kg/day. Knowing the risk of fluid retention with diazoxide, this patient on hemodialysis tolerated it well. Diazoxide helped reduce his episodes of hypoglycemia and he was then safely discharged on it. Discussion(s): In ESRD, hypoglycemia can be explained by the impaired contribution of the kidneys to gluconeogenesis and glucose release, as well as the higher insulin levels caused by insulin resistance and decrease in insulin clearance. When his hypoglycemia persisted even after the resolution of his infection, further testing and work-up was done and other causes of hypoglycemia were ruled out. Generally, diazoxide is used as a treatment to manage the symptoms of hypoglycemia in congenital hyperinsulinism, insulinomas and post bariatric surgery cases of hyperinsulinemic hypoglycemia. However, it has not been the optimal treatment when it comes to treating hypoglycemia in ESRD patients because of its side effects;specifically, fluid retention, and electrolyte imbalances. In our case, the patient was treated with diazoxide as a last resort, despite its known side effects and the limited documentation of its use in ESRD patients. Actually, a few other case reports, have also shown promising results with the use of diazoxide for that purpose with no or minimal side effects. However, there are not enough studies that have shown the benefits or risks of long-term treatment of diazoxide in ESRD patients, an area of growing interest.Copyright © 2023

Laparoscopic Paraesophageal Hernia (PEH) Repair, Roux-en-Y Gastric Bypass, and Per Oral Endoscopic Myotomy (POEM) in a Patient with Achalasia After Sleeve Gastrectomy.

BACKGROUND: GERD and Achalasia are two known complications after sleeve gastrectomy. Treatment towards each of these complications varies and requires a tailored approach. METHODS: We present a 55-year-old female with class II obesity and a previous history of sleeve gastrectomy who developed significant gastroesophageal reflux disease refractory to medical management. After a covid infection in fall of 2020, she began to report new symptoms of dysphagia that progressed from solids to liquids. She underwent extensive workup including upper endoscopy, upper GI barium swallow, manometry, pH impedence, and EndoFlip leading to a diagnosis of Achalasia type II as well as a paraesophageal hernia. RESULTS: Given these findings, she underwent a combined paraesophageal hernia repair with conversion of sleeve gastrectomy to Roux-en-Y gastric diversion and an intra-operative peroral endoscopic myotomy. Intraoperatively, she was noted to have significant lower abdominal adhesions leading to performing the Roux-en-Y reconstruction through a supramesocolic defect in a retrocolic fashion. CONCLUSIONS: While the development of heartburn and achalasia after sleeve gastrectomy is rare, it requires interventions dedicated towards each etiology. This case demonstrates treatment of both these symptoms is feasible in a single operation.

Bariatric surgeons' experiences of working in the first year of the pandemic

BackgroundThe first year of the Covid-19 pandemic saw drastic changes to bariatric surgical practice, including postponement of procedures, altered patient care and impacting on the role of bariatric surgeons. The consequences of this both personally and professionally amongst bariatric surgeons has not as yet been explored. AimsThe aim of this research was to understand bariatric surgeons' perspectives of working during the first year of the pandemic to explore the self-reported personal and professional impact. MethodsUsing a retrospective, two phased, study design with global participants recruited from closed, bariatric surgical units. The first phase used a qualitative thematic analytic framework to identify salient areas of importance to surgeons. Themes informed the construction of an on-line, confidential survey to test the potential generalizability of the interview findings with a larger representative population from the global bariatric surgical community. FindingsFindings of the study revealed that the first year of the pandemic had a detrimental effect on bariatric surgeons both personally and professionally globally. ConclusionThis study has identified the need to build resilience of bariatric surgeons so that the practice of self-care and the encouragement of help-seeking behaviors can potentially be normalized, which will in turn increase levels of mental health and wellbeing.

Remote patient monitoring to facilitate same-day discharge after laparoscopic sleeve gastrectomy: a pilot evaluation.

BACKGROUND: Limited hospital inpatient capacity, exacerbated by SARS-CoV-2 (COVID-19) and associated staffing shortages, has driven interest in converting surgeries historically done as inpatient procedures to same-day surgeries (SDS). Remote patient monitoring (RPM) has the potential to increase safety and confidence in SDS but has had mixed success in a bariatric population. OBJECTIVES: Assess the feasibility of and adherence to a protocol offering patients same-day laparoscopic sleeve gastrectomy (SG) supported by RPM with an updated wearable device. Secondary outcomes were readmissions, costs, adherence, and clinical alarm rates. SETTING: Academic, military tertiary referral center (United States). METHODS: A single-center, retrospective case control study of patients undergoing SG, comparing SDS with RPM to patients admitted to the hospital for SG during this time. Patients for SDS were selected by set inclusion/exclusion criteria and patient/surgeon preference, and perioperative management was standardized. RESULTS: Twenty patients were enrolled in the SDS group, then compared with 53 inpatients. Inpatients were older (46 versus 39, P = .006), but with no significant differences in sex, preoperative body mass index, or co-morbidities. RPM wearable and blood pressure adherence was found to be 97% and 80%, respectively. Readmission rates were similar (10% versus 7.5%, P > .05). RPM alarm rates were .5 (0-1.3) per patient for each 24-hour home monitoring period. SDS patients also demonstrated the potential for cost savings over inpatient SG, depending on the number of patients monitored per day as well as the healthcare setting. CONCLUSIONS: SG as SDS with RPM was a feasible approach. It should be evaluated in other surgical procedures and higher-risk patient populations.

Management of obesity.

From 1975-2016, the number of people with obesity in Europe increased fivefold and the overall trend is still increasing. Obesity is the result of an imbalance between energy expenditure and caloric intake. Although the importance of genetic determinants for the variance of body mass index (BMI) is about 60-70%, overeating, lack of exercise, and psychosocial stress are influenceable risk factors. For example, during the Corona pandemic, nearly 40% of Germans gained an average of 5.6kg, and people with obesity gained as much as 7.2kg. To reduce obesity-associated comorbidities, a permanent reduction in body weight of (at least) 5-10% is recommended. A significant reduction of cardiovascular endpoints can be achieved with a weight reduction of more than 10% of the initial weight. Therapeutic measures in the context of an escalating stepwise approach should include strategies for targeted weight reduction and long-term weight maintenance.Copyright © 2023, The Author(s), under exclusive licence to Springer Medizin Verlag GmbH, ein Teil von Springer Nature.

Management of obesity.

From 1975-2016, the number of people with obesity in Europe increased fivefold and the overall trend is still increasing. Obesity is the result of an imbalance between energy expenditure and caloric intake. Although the importance of genetic determinants for the variance of body mass index (BMI) is about 60-70%, overeating, lack of exercise, and psychosocial stress are influenceable risk factors. For example, during the Corona pandemic, nearly 40% of Germans gained an average of 5.6kg, and people with obesity gained as much as 7.2kg. To reduce obesity-associated comorbidities, a permanent reduction in body weight of (at least) 5-10% is recommended. A significant reduction of cardiovascular endpoints can be achieved with a weight reduction of more than 10% of the initial weight. Therapeutic measures in the context of an escalating stepwise approach should include strategies for targeted weight reduction and long-term weight maintenance.Copyright © 2022, The Author(s), under exclusive licence to Springer Medizin Verlag GmbH, ein Teil von Springer Nature.

Dietary preparation for bariatric surgery via video conferencing during the COVID-19 health crisis and perspectives

Introduction: The health crisis linked to COVID-19 led to the containment of the general population in order to limit the spread of the virus. With the emergence of this new disease, it was necessary to mobilise in order to limit the transmission of the virus to our obese population, at risk of developing a severe form of COVID-19. To do this, we proposed to carry out our TPE workshops by videoconference to all patients included in the TPE "bariatric surgery"programme. Objectives: The aim of this study is to identify the benefits and drawbacks of this group distance TVE format, their efficiency in terms of learning and behavioural changes, and the different resources of the programme that facilitate their learning for the pre- and post-surgery course. Methods: This is a two-phase mixed-methods study. The first phase of the study consisted of an exploratory qualitative study using semi-directive interviews with 18 patients who had followed the distance TPE from March 2020 to May 2020, to explore their experiences of the different educational sessions. In a second phase, the exploratory study made it possible to draw up a questionnaire to gather the views of all the patients educated from March 2020 to May 2021. The analysis of the answers mobilised the theory of capabilities to identify the positive or negative conversion factors of the programme for the patients'learning. Results: Of the 70 patients included, 43 responded to the questionnaire. This video conferencing TPE enabled the scheduling of surgical procedures to be maintained. Patients reported time savings due to the absence of travel. Patients with low digital literacy were able to access this programme. Participants stressed the importance of continuity of connection with caregivers. Patients reported self-care skills acquired through this distance learning and an average weight loss of 7 kg. Both positive and negative learning factors were identified. Discussion: The results of this study demonstrate the interest in developing e-TPE programmes for several reasons: the difficulties in bringing these patients to the hospital, the geographical inequalities in access to TPE, the absence of reimbursement for transport tickets and the lack of dedicated spaces available. It therefore seems important to train professionals and patients in the digital tool. Conclusion: This study of a population of obese patients who participated in a TVE programme by videoconference during a pandemic and a period of confinement shows the perceived quality of this distance education. In view of the different programmes transposed into distance format, it would be interesting to promote research crossing the experiences of patients and professionals to propose the best educational format to the health authorities. © 2023 SETE. Introduction : La crise sanitaire liée au Covid-19 a engendré un confinement de la population générale afin de limiter la propagation du virus. Dans l'émergence de cette nouvelle maladie, il a fallu se mobiliser afin de limiter la transmission du virus auprès de notre population d'obèses, à risque de développer une forme grave au Covid-19. Pour cela, nous avons propos de réaliser nos ateliers ETP par visioconférence à l'ensemble des patients inclus dans le programme ETP « chirurgie bariatrique ». Objectifs : L'objectif de cette étude est de dégager les bénéfices et inconvénients de ce format d'ETP distanciel en collectif, leur efficience au regard des apprentissages et des changements de comportement, et les différentes ressources du programme facilitant leurs apprentissages pour le parcours pré et post chirurgie. Méthodes : Il s'agit d'une étude mixte en deux phases. La première phase de l'étude consiste en une étude qualitative exploratoire par entretiens semi-directifs auprès de 18 patients ayant suivi l'ETP en distanciel de mars 2020 à mai 2020, pour explorer leur vécu des différentes sessions éducatives. L'étude exploratoire a permis d'élaborer dans une deuxième phase un questionnaire pour recueillir le point de vue de l'ensemble des patients éduqués de mars 2020 à mai 2021. L'analyse des réponses a mobilisé la théorie des capabilités pour identifier les facteurs de conversion positifs ou négatifs du programme pour les apprentissages des patients. Résultats : Sur l'ensemble des 70 patients inclus quarante-trois personnes ont répondu au questionnaire... Cette ETP en visioconférence a permis de maintenir la programmation des interventions chirurgicales. Les patients ont rapporté un gain de temps lié à l'absence de déplacement. Des patients avec une faible littératie numérique ont pu accéder à ce programme. Les participants ont souligné l'importance de la continuité du lien avec les soignants. Les patients ont rapporté des compétences d'auto-soins acquises à travers cette ETP à distance ainsi qu'une perte de poids de 7 kg en moyenne. Des facteurs positifs et négatifs au regard des apprentissages ont été mis en évidence. Discussion : Les résultats de cette étude démontrent l'intérêt de développer des programmes e-ETP pour plusieurs raisons : les difficultés à faire venir ces patients à l'hôpital, les inégalités géographiques d'accès à l'ETP, l'absence de remboursement des titres de transport et d'espaces disponibles dédiés. Il parait donc important de former les professionnels et les patients à l'outil numérique. Conclusion : Cette étude auprès de la population de patients obèses ayant participé à un programme d'ETP par visioconférence en période de pandémie et de confinement témoigne de la qualité perçue de cette éducation en distanciel. Au regard des différents programmes transposés sous format distanciel, il serait intéressant de promouvoir des recherches croisant les expériences des patients et des professionnels pour proposer aux autorités de santé le meilleur format éducatif. © 2022 EDP Sciences. All rights reserved.

Obesity: A critical risk factor in the COVID-19 pandemic.

Obesity is an emerging independent risk factor for susceptibility to and severity of coronavirus disease 2019 (COVID-19) caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). Previous viral pandemics have shown that obesity, particularly severe obesity (BMI > 40 kg/m2 ), is associated with increased risk of hospitalization, critical care admission and fatalities. In this narrative review, we examine emerging evidence of the influence of obesity on COVID-19, the challenges to clinical management from pulmonary, endocrine and immune dysfunctions in individuals with obesity and identify potential areas for further research. We recommend that people with severe obesity be deemed a vulnerable group for COVID-19; clinical trials of pharmacotherapeutics, immunotherapies and vaccination should prioritize inclusion of people with obesity.

Successful Pregnancy in a Woman of Advanced Maternal Age at Sixteen Months Post-Roux-en-Y Gastric Bypass Revision.

Obesity, defined as body mass index (BMI) > 30 kg/m2, complicates maternal and neonatal outcomes. Bariatric surgery (BS) is an option for weight reduction in several populations, including reproductive-aged women. However, there is a lack of consensus regarding the ideal time interval between BS and pregnancy. We report the case of a 43-year-old Hispanic female who underwent an initial Roux-en-Y gastric bypass (RYGB) in 2011, followed by a revision eight years later in 2019. The revision entailed the reduction of the gastric pouch size and the excision of the remnant stomach. It occurred sixteen months before the conception of her second pregnancy. Despite advanced maternal age and nutritional challenges following BS, this patient delivered a healthy male neonate and maintained a net weight loss compared to her preoperative weight. Factors leading to this positive outcome included the patient's adherence to dietary recommendations following the procedure and using weight loss adjuncts (phentermine and topiramate) to promote post-procedure weight loss. Sixteen months between RYGB revision and conception can lead to positive pregnancy outcomes, even in women of advanced maternal age and multiple prior BS. Further studies are required to understand better the optimal interval to reduce maternal and neonatal complications following RYGB specifically and the use of medications as weight loss adjuncts.

Post-Operative but Not Pre-Operative COVID-19 Predicts Serious Complications and Mortality Following Elective Bariatric Surgery.

PURPOSE: We sought to characterize the prevalence and subsequent impact of pre- and post-operative COVID-19 diagnosis on bariatric surgery outcomes. COVID-19 has transformed surgical delivery, yet little is known regarding its implications for bariatric surgery. MATERIALS AND METHODS: The Metabolic and Bariatric Accreditation and Quality Improvement Program (MBSAQIP) database was evaluated with three cohorts described: those diagnosed with COVID-19 pre-operatively (PRE), post-operatively (POST), and those without a peri-operative COVID-19 (NO) diagnosis. Pre-operative COVID-19 was defined as COVID-19 within 14 days prior to the primary procedure while post-operative COVID-19 infection was defined as COVID-19 within 30 days after the primary procedure. RESULTS: A total of 176,738 patients were identified, of which 174,122 (98.5%) had no perioperative COVID-19, 1364 (0.8%) had pre-operative COVID-19, and 1252 (0.7%) had post-operative COVID-19. Patients who were diagnosed with COVID-19 post-operatively were younger than other groups (43.0 ± 11.6 years NO vs 43.1 ± 11.6 years PRE vs 41.5 ± 10.7 years POST; p < 0.001). Pre-operative COVID-19 was not associated with serious complications or mortality after adjusting for comorbidities. Post-operative COVID-19, however, was among the greatest independent predictors of serious complications (OR 3.5; 95% CI 2.8-4.2; p < 0.0001) and mortality (OR 5.1; 95% CI 1.8-14.1; p = 0.002). CONCLUSIONS: Pre-operative COVID-19 within 14 days of surgery was not significantly associated with either serious complications or mortality. This work provides evidence that a more liberal strategy which employs early surgery after COVID-19 infection is safe as we aim to reduce the current bariatric surgery case backlog.

Obesity and renal disease: Benefits of bariatric surgery.

The prevalence of obesity, a preventable and reversible condition with a high impact on health, continues to rise, especially after the COVID-19 pandemic. Severe overweight is well recognized as a risk factor for diabetes and hypertension, among other conditions, that may increase cardiovascular risk. Obesity has grown simultaneously with a rise in the prevalence of chronic kidney disease, and a pathophysiological link has been established, which explains its role in generating the conditions to facilitate the emergence and maximize the impact of the risk factors of chronic kidney disease and its progression to more advanced stages. Knowing the mechanisms involved and having different tools to reverse the overweight and its consequences, bariatric surgery has arisen as a useful and efficient method, complementary or alternative to others, such as lifestyle changes and/or pharmacotherapy. In a detailed review, the mechanisms involved in the renal consequences of obesity, the impact on risk factors, and the potential benefit of bariatric surgery at different stages of the disease and its progression are exposed and analyzed. Although the observational evidence supports the value of bariatric surgery as a renoprotective measure in individuals with obesity, diabetic or not, randomized studies are expected to establish evidence-based recommendations that demonstrate its positive risk-benefit balance as a complementary or alternative therapeutic tool.