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Background: Stroke is the second leading cause of death worldwide and fifth in the United States, and it represents the major cause of disability in older adults., Objective: We aimed to determine the risk of acute ischemic stroke (AIS) in individuals with obesity with a history of transient ischemic attack (TIA) compared with patients with a history of bariatric surgery., Setting: Academic hospital, United States., Methods: Using the Nationwide Inpatient Sample (NIS) database from 2010 to 2015, we retrospectively identified patients with obesity and past medical history of TIA and divided them into 2 groups: a treatment group of patients who underwent bariatric surgery, and a control group of patients with obesity. We compared incidence of new AIS in both groups using a univariate analysis and multivariate regression model. Covariates included were lifestyle (smoking status, alcohol habits, cocaine use), family history of stroke, co-morbidities (diabetes, hypertension, hyperlipidemia, atrial fibrillation) and long-term medical treatment (antiplatelet/antithrombotic treatment)., Results: A total of 91,640 patients met inclusion criteria, of which treatment patients were 12.3% (n = 11,284) and control patients 87.6% (n = 80,356). The average age of the treatment group was 62.9 ± 17.08 years, and the average of the control was 59.6 ± 12.74 years. The rate of AIS in the treatment group was significantly lower compared with the control group (2.8% versus 4.2%, P < .0001). After adjusting for covariables, the risk difference of AIS was still significant between groups (odds ratio = 1.33, P < .0001), showing that patients in the treatment group were less likely to have AIS compared with the control group., Conclusions: After analyzing nationwide information, we conclude bariatric surgery helps decrease risk of AIS in patients with a history of TIA. However, this comparison is limited by the nature of the database; further studies are needed to better understand these results., (Copyright © 2022 American Society for Metabolic and Bariatric Surgery. Published by Elsevier Inc. All rights reserved.)

Background: Obesity can worsen outcomes in patients with chronic respiratory diseases., Objectives: The objective of the study was to determine the impact of bariatric surgery (BaS) on risk of hospitalization due to acute exacerbation (AE) of chronic obstructive lung diseases (OLDs)., Setting: Academic, University-affiliated Hospital; United States., Methods: Nationwide Inpatient Sample data collected from 2010 to 2015 were examined. Patients were classified as treatment and control groups. Treatment subjects were defined as patients with a previous history of BaS, and control subjects, as patients with a body mass index ≥35 kg/m 2 and without a history of BaS. The primary outcome was hospitalization due to AE of any OLD (chronic obstructive pulmonary disease, asthma, and bronchiectasis), and the secondary outcome was the total length of stay (LOS). Univariate analysis and multivariate regression model were performed to assess the difference in outcomes between groups., Results: We included a total of 2,300,845 subjects: 2,004,804 controls and 296,041 treatments. Univariate analysis showed that the hospitalization rate was significantly lower for the treatment group than that for the control group (3.7% versus 9.8%, P < .0001), confirmed after adjusting for covariates (control versus treatment: odds ratio [OR] = 2.46, P < .0001). Subgroup analysis showed that the treatment group had a lower risk of LOS ≥3 days than controls (69.8% versus 77.4%, P < .0001), confirmed by multivariate analysis (control versus treatment: OR = 1.40, P < .0001)., Conclusions: BaS-induced weight loss may decrease the risk of hospitalization due to AE in patients with OLD, also decreasing the LOS. We acknowledge that this comparison is limited by the nature of the database; hence, further prospective studies are needed to better understand these results., (Copyright © 2022 American Society for Metabolic and Bariatric Surgery. Published by Elsevier Inc. All rights reserved.)

Background: In the past five 5 years our team has studied the effects of bariatric surgery on chronic kidney disease (CKD) at our institution., Objectives: The objective of this study was to assess the impact of bariatric surgery (BaS) on the prevalence and likelihood of CKD and end-stage renal disease (ESRD) nationwide., Setting: Academic hospital, United States., Methods: We conducted a retrospective analysis of the U.S. National Inpatient Sample (NIS) database for the years 2010-2015 and compared. Univariate and multivariable analysis were performed to assess the impact of BaS on the point prevalence and the probability of CKD and ESRD. Similarly, a multivariable logistic regression was conducted to measure the impact of the most important risk factors for CKD exclusively in a severely obese population., Results: Data on 296,041 BaS cases and 2,004,804 severely obese controls was extracted from the NIS database and relative to controls, all baseline CKD risk factors were less common among bariatric surgery cases. Nonetheless, even after adjusting for all CKD risk factors, controls exhibited marked increases in the odds of CKD-stage III (odds ratio [OR] 3.10 [3.05-3.14], P < .0001) and modes increase for ESRD (OR 1.13 [1.09-1.18], P < .0001). Overall, even after adjusting for risk factors we observed that the rate of CKD is significantly higher in the control group, 12% when compared with 5.3% in the bariatric surgery group (P < .0001)., Conclusion: In this retrospective, case control study of a large, representative national sample of patients with severe obesity, BaS was found to be associated with significantly reduced point-prevalence and likelihood for CKD when adjusted for baseline CKD risk factors as compared with patients with obesity who did not undergo BaS. Overall, BaS resulted in a reduced rate and a moderate decrease in the likelihood of ESRD., (Copyright © 2021 American Society for Bariatric Surgery. Published by Elsevier Inc. All rights reserved.)

Background: The incidence of obesity has been steadily increasing, especially in developed countries. Also, obesity is considered one of the modifiable risk factors of kidney cancer., Objectives: This study aims to determine the impact of bariatric surgery-induced weight loss on the prevention of kidney cancer., Setting: Academic Hospital, United States., Methods: The National (Nationwide) Inpatient Sample (NIS) was queried for the period 2010 to 2015 for first-time kidney cancer-related hospitalization, used as a proxy for cancer incidence, in patients with a history of bariatric surgery (cases) and patients with obesity but no history of bariatric surgery (controls). Patients with a previous diagnosis of cancer were excluded from the analysis. In order to identify comparable patients, all controls had to have a body mass index ≥35 kg/m 2 , as per the existing qualification criteria for bariatric surgery. The International Classification of Diseases-9 codes (ICD-9) was used to identify admissions for kidney cancer. A univariate analysis was conducted to compare demographics and co-morbidities between groups. A multivariate logistic regression model was performed to assess differences between surgical and control groups and adjust for independent variables such as smoking history and family history of malignancy. All percentages and means (with confidence intervals [CIs]) were weighted., Results: A total of 2,300,845 were included in the analysis, of which 2,004,804 controls-subjects, with a mean age of 54.4 ± .05 years, and 296,041 treatment-subjects, with a mean age of 51.9 ± .05 years. Demographics and co-morbidities, such as tobacco use, diabetes, and hypertension, were also measured. Patients with a history of bariatric surgery were significantly less likely to experience renal cancer than patients without a history of bariatric surgery, with 5935 cases in the control group and 684 in the case group (P < .0001). After a multivariate logistic regression was performed, the OR was 1.10 (95% CI: 1.02-1.22, P < .0224)., Conclusion: Our finding suggests that bariatric surgery-induced weight loss could significantly prevent first-time kidney cancer-related hospitalizations in patients with obesity. Prospective studies are needed to confirm our findings., (Copyright © 2021 American Society for Bariatric Surgery. Published by Elsevier Inc. All rights reserved.)

Background: Obesity independently increases the risk of hospitalization due to viral respiratory infections, including influenza virus and, more recently, severe acute respiratory syndrome coronavirus 2. As an independent risk factor, obesity impairs the immune response to viral infections and decreases the effectiveness of immunizations., Objectives: Using influenza as a proxy, we aimed to determine the impact of bariatric surgery (BaS) on the risk of hospitalization due to viral respiratory infections., Setting: Academic hospital, United States., Methods: National (Nationwide) Inpatient Sample data collected from 2010 to 2015 were examined. Patients were classified as treatment and control groups. Treatment subjects were defined as patients with a history of BaS and control subjects as patients with a body mass index ≥35 kg/m 2 and without a history of BaS. Any hospitalization with influenza as a primary diagnosis was identified. Univariate analysis and multivariate regression models were performed to assess the differences between groups., Results: A total of 2,300,845 subjects were reviewed, of which 2,004,804 were control subjects and 296,041 were treated patients. Univariate analysis showed that the hospitalization rate in the treatment group was significantly lower than in the control group (.007% versus .019%, P < .0001), which was confirmed after adjusting for covariables (control versus treatment: odds ratio = 2.21, P = .0010)., Conclusions: BaS may decrease the risk of hospitalization due to influenza, but further prospective studies are needed to confirm these results. We also suggest that these results should be translated into the development of similar studies to determine the impact of BaS on the incidence and severity of the coronavirus disease 2019., (Copyright © 2021 American Society for Bariatric Surgery. Published by Elsevier Inc. All rights reserved.)

Background: The population undergoing bariatric surgery (BaS) has many cardiovascular risk factors that can lead to significant perioperative cardiovascular morbidity., Objectives: We aimed to examine trends in the incidence of major adverse cardiovascular and cerebrovascular events (MACCE) after BaS., Setting: Academic Hospital, United States METHODS: We performed a retrospective analysis of the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) data registry for patients aged ≥18 years undergoing laparoscopic sleeve gastrectomy (LSG) and laparoscopic Roux-en-Y gastric bypass (LRYGB) from 2015 to 2019. Data on demographics, co-morbidities, and type of procedure were collected. MACCE was defined as a composite variable including perioperative acute myocardial infarction (AMI), cardiac arrest requiring cardiopulmonary resuscitation, acute stroke, and all-cause mortality. We utilized the Cochrane-Armitage and Jonckheere-Terpstra tests to assess for significant trend changes throughout the years., Results: A total of 752,722 patients were included in our analysis (LSG = 73.2%, LRYGB = 26.8%). Postoperative MACCE occurred in 1058 patients (.14%), and was more frequent in patients undergoing LRYGB (.20%). The frequency of MACCE declined from .17% to .14% (P = .053), driven by a decline in the frequency of AMI (.04% to .02%, P = .002), cardiac arrest (.05% to .04%, P = .897), and all-cause death (.11% to .08%, P = .040), but with an increase in perioperative stroke (.01% to .02%, P = .057)., Conclusion: The overall risk of MACCE after BaS is .14% and has been declining in the last 5 years. This trend is likely multifactorial and further analysis is necessary to provide a detailed explanation., (Copyright © 2021 American Society for Bariatric Surgery. Published by Elsevier Inc. All rights reserved.)

Background: Bariatric surgery (BaS) is the safest, most effective, and most durable therapy for obesity but is performed in less than 1% of the affected United States (US) population. It is challenging to determine from traditional surveys if this phenomenon is the result of poor access to care or lack of interest among Internet users., Objectives: The aim of this study was to use Google Trends (GT) as a tool to analyze the US general population interest in BaS., Setting: Academic Hospital, United States., Methods: GT was used to access data searched for the term bariatric surgery. The gathered information included data from 2008 through 2018 in English within the US. Search frequency, time intervals, locations, frequent topics of interest, and related searches were analyzed. GT reports search frequency on means, and a value of 100 represented peak popularity., Results: The number of Google searches related to the term bariatric surgery has gradually increased over time, from a mean of 67% in 2008 to a 94% interest in 2017. Regarding interest by subregion in 2017, the state of Michigan lead the frequency of searches, followed by Indiana, Delaware, West Virginia, and Tennessee. Top searched terms by frequency were the following: patient eligibility for BaS, what is BaS, what are the complications of BaS, financial costs of BaS, and what insurance companies cover BaS. It appears that traditional Web sites only address a few., Conclusions: GT complements the understanding of interest in BaS. Using these trends can improve an Internet user's education, and tailor specific official Web sites for the public's general interest., (Copyright © 2020 American Society for Bariatric Surgery. Published by Elsevier Inc. All rights reserved.)

Background: According to the U.S. Centers for Disease Control, cancers linked to overweight or obesity accounted for roughly 40% of all U.S. malignancies in 2014., Objectives: The primary aim of this epidemiologic study was to assess whether bariatric surgery might have any preventative role against obesity-linked cancers among individuals with obesity., Setting: Hospitals across the United States participating in the National Inpatient Sample database, created, updated, and monitored by the U.S. Healthcare Cost and Utilization Project., Methods: National Inpatient Sample data collected from 2010 to 2014 were examined to identify any difference in the number of first cancer-related hospitalizations, as a proxy for cancer incidence, between patients with a history of prior bariatric surgery (cases) and those without (controls). Patients with any prior cancer diagnosis were excluded. To match the body mass index ≥35 kg/m 2 generally required for bariatric surgery, all controls had to have a body mass index ≥35 kg/m 2 . International Classification of Diseases-9 codes were employed to identify admissions for 13 obesity-linked cancers. Multivariate logistic regression analysis was performed to identify any case-control differences, after matching for all baseline demographic, co-morbidity, and cancer risk-factor variables. All percentages and means (with confidence intervals) were weighted, per Healthcare Cost and Utilization Project guidelines., Results: Among 1,590,579 controls and 247,015 bariatric surgery cases, there were 29,822 (1.93%; 95% confidence interval 1.91-1.96) and 3540 (1.43%; 1.38-1.47) first hospitalizations for cancer (adjusted odds ratio 1.17; 1.13-1.23; P < .0001)., Conclusions: Preliminary findings from a large U.S. database suggest that bariatric surgery may reduce the incidence of cancer in patients considered at high risk because of severe obesity., (Copyright © 2020 American Society for Bariatric Surgery. Published by Elsevier Inc. All rights reserved.)

Background: Coronary heart disease (CHD) accounts for one third of all deaths in people older than 35 years in the United States., Objectives: The aim of this study is to determine the impact of bariatric surgery, especially laparoscopic sleeve gastrectomy, on the risk of developing CHD., Setting: Academic, University affiliated hospital., Methods: We retrospectively reviewed all patients who underwent bariatric surgery from 2010-2016. All patients between 30 and 74 years of age without a previous history of CHD were included in our study. The risk score for predicting the incidence of CHD was measured preoperatively and at 12 months of follow-up., Results: Of the 1330 patients studied, 225 patients (16.9%) had all the required variables to calculate the CHD risk score. The mean age of our population was 51.4 ± 11.3 years, mostly female (67%, n = 152) and white (58.7%, n = 132). At the preoperative setting, our patient population had a systolic blood pressure in the prehypertensive ranges, with 40% (n = 90) having type 2 diabetes and 60% (n = 134) having arterial hypertension. The preoperative CHD preoperative risk was 8.9 ± 7.7% or 8-fold higher than the ideal risk. After 12 months of follow-up, the CHD absolute risk reduction was 2.7%, and the relative risk reduction was 42.0% for female patients and 5.4% and 38.8%, respectively, for male patients. All the metabolic factors used to calculate the risk of developing CHD had a significant improvement after 12 months., Conclusions: Surgical weight loss reduces the risk of developing CHD. Further studies should assess these findings in a long-term follow-up., (Copyright © 2020 American Society for Bariatric Surgery. Published by Elsevier Inc. All rights reserved.)

Background: There is a paucity of studies comparing risk reduction of the atherosclerotic cardiovascular disease (ASCVD) and Framingham-body mass index (BMI) Coronary Heart risk score after a laparoscopic Roux-en-Y gastric bypass (RYGB), and few studies have assessed the efficacy of laparoscopic sleeve gastrectomy (SG) in reducing cardiovascular risk., Objective: Our goal in this study was to compare the impact of SG and RYGB on cardiovascular risk reduction., Setting: U.S. university hospital., Methods: We retrospectively reviewed the records of all SG or RYGB cases at our institution between 2010 and 2015. Patients who met the criteria for calculating the ASCVD 10-year and Framingham-BMI score were included in the study. Propensity score matching was used to match SG and RYGB on demographic characteristics and co-morbidities., Results: Of the 1330 bariatric patients reviewed in the study period, 219 (19.3%) patients met the criteria for risk score calculation. SG was the most prevalent surgery in 72.6% (N = 159) of cases compared with RYGB in 27.4% (N = 60) of cases. At 12-month follow-up, ASCVD 10-year score had an absolute risk reduction of 3.9 ± 6.5% in SG patients and 2.9 ± 5.8% in RYGB patients (P = .3). Framingham-BMI score absolute risk reduction was 11.0 ± 12.0% in SG and 9.0 ± 11.0% in RYGB patients (P = .4), and the decrease in estimated heart age was 12.1 ± 15.6 years in SG versus 9.2 ± 9.6 years in RYGB (P = .1). The percentage of estimated BMI loss at 1 year was 68.1 ± 23.3% in SG versus 74.2 ± 24.8% in RYGB (P = .1)., Conclusion: Our results suggest that SG and RYGB are equally effective in improving cardiovascular risk and decreasing the estimated vascular/heart age at 12-month follow-up., (Copyright © 2018 American Society for Bariatric Surgery. Published by Elsevier Inc. All rights reserved.)

Background: Our objective was to ascertain procedure-related morbidity among laparoscopic Roux-en-Y gastric bypass (LRYGB), laparoscopic sleeve gastrectomy (LSG), and laparoscopic adjustable gastric banding (LAGB) patients. These are the 3 most common bariatric procedures performed worldwide. We reviewed our experience since the introduction of LSG and compared the procedure-related morbidity among all 3 procedures., Study Design: We conducted a retrospective review of a prospectively collected database of all morbidly obese patients who underwent bariatric surgery between the years 2005 and 2011. We identified and compared complications, mortality, readmissions, and reoperations in patients who underwent LRYGB, LAGB, and LSG., Results: A total of 2,199 bariatric procedures were performed during this period of time. Of those procedures, 1,327 were LRYGB, 619 were LSG, and 253 were LAGB. Perioperative mortality was not applicable for all 3 procedures. The leak rate was 0.5% for LRYGB and 0.3% for LSG, and was not applicable for LAGB. The average number of readmissions postoperatively was less than 2 times for all 3 procedures: LRYGB 1.96 times, LSG 1.49 times, and LAGB 1.54 times. The percentages of procedures requiring reoperations due to complications or failures were 14.6% in the LAGB group, 6.6% in the LRYGB group, and 1.8% in the LSG group., Conclusions: In short- and mid-term follow-up, LSG appears to have the lowest procedure-related morbidity when compared with LRYGB and LAGB., (Copyright © 2013 American College of Surgeons. Published by Elsevier Inc. All rights reserved.)

Background: Previously, we demonstrated the safety and efficacy of laparoscopic gastric bypass surgery in patients over 65 years of age. The aim of this study is to demonstrate the safety and efficacy of this procedure as a final step for treatment of morbid obesity in the same population., Methods: A retrospective review of a prospectively collected database was performed. Between 2004 and 2010, a total of 35 patients age 60 and greater were analyzed from a total of 512 sleeve gastrectomy patients. Demographics, preoperative body mass index, complications, and excess weight loss were recorded and compared to bougie size and follow-up in months. Mean age was 66.3 years (range, 60-79 years), mean body mass index was 46.3 kg/m(2) (range, 33.7-77.6 kg/m(2)), and mean excess weight loss was 148.49 lb (range, 72-252 lb)., Results: One patient (2.8 %) had an incidental colotomy as a result of trocar insertion, one patient (2.0 %) bled, and one patient (2.8 %) had small-bowel enterotomy. Overall, morbidity was 8.4 % with no mortality. Mean percent excess weight loss results for bougie size 52 were 28, 34, 26, 18, and 27 % at 3, 6, 12, 24 and 48 months, respectively; for bougie size 46 were 31, 57, 64, 62, and 82 % at 3, 6, 12, 24 and 48 months, respectively; and bougie size 38 were 37, 50, 55, and 56 % at 3, 6, 12 and 24 months, respectively., Conclusions: Laparoscopic sleeve gastrectomy is an effective procedure for morbidly obese patients age 60 and greater that can be performed safely.

Background: Laparoscopic sleeve gastrectomy is a relatively new treatment modality implemented in the surgical management for morbid obesity. It has been well documented that obesity is not only associated with an increased risk of malignancies but is also consistent with a higher incidence of surgical complications related to its definitive management. In spite of the weight loss experienced by patients with malignancy due to a catabolic state, bariatric surgery might be considered as a step procedure allowing for a more efficient and suitable surgical approach to treat early stage malignancies, thereby decreasing the procedure-related morbidity and mortality. This study aims to examine the effectiveness of laparoscopic sleeve gastrectomy as a primary weight loss procedure in patients with untreated malignancy facilitating a definitive oncologic surgical approach., Methods: After institutional review board approval and following Health Insurance Portability and Accountability Act guidelines, we conducted a retrospective review of a prospectively collected database. From September 2006 to March 2009, we analyzed all morbidly obese patients with early stage malignancy that underwent laparoscopic sleeve gastrectomy at the Bariatric and Metabolic Institute as a weight loss surgery prior to a second oncologic procedure. The variables examined were excess body weight, percent excess weight loss, comorbidities, malignancy type, preoperative body mass index (BMI), postoperative BMI, morbidity, and mortality. Mean follow-up time was 3 months until an oncologic procedure was performed., Results: Our series included four morbidly obese patients. There were three males and one female, with a mean age of 53.75 years (range 27-67 years) and a mean BMI of 48.25 kg/m(2) (range 42-55 kg/m(2)). Mean excess weight in our patient population 176 lbs. Mean weight loss at 3 months after laparoscopic sleeve gastrectomy was 59.35 lbs (range 28-79 lbs). Comorbidities included diabetes mellitus, hypertension, obstructive sleep apnea, chronic obstructive pulmonary disease, Crohn's disease, coronary artery disease, and previous history of DVT. One patient was diagnosed with a small bowel carcinoid, two patients with renal hypernephroma, and one patient with prostate cancer. After an average time of 3 months, patients underwent a definitive procedure in accordance to their type of malignancy. There were neither postoperative complications nor mortality., Conclusions: Laparoscopic sleeve gastrectomy is a safe and reasonable approach to effectively reduce weight in order to allow morbidly obese patients with early stage malignancies to undergo a second oncologic procedure.

Background: Obesity has become a worldwide problem. Surgery has been shown to be a safe and effective therapy. We sought to identify those factors that patients regard as barriers to undergoing a bariatric surgical procedure., Methods: Morbidly obese patients were asked to complete a 2-page questionnaire during routine outpatient appointments or hospitalization for other reasons. Patients were enrolled from February 2007 to April 2008. The differences between groups were assessed using univariate analysis., Results: A total of 77 patients (41 women and 36 men) were enrolled. Their median age was 51 years, and 49% of the patients were white, followed by Hispanic (23%), and other ethnicities. Of the 77 patients, 9% were supermorbidly obese (body mass index >50 kg/m(2)), and 62% reported having used dieting to lose weight, with greater reports among the women (P = .01). White patients and those >55 years old were more likely to be using some type of weight loss program. Only 40% were physically active. African Americans reported greater rates of regular exercise (P <.01). Of the 77 patients surveyed, 8% had never heard of bariatric surgery. Finally, only 30% of our patient population considered themselves to be morbidly obese., Conclusion: The results from the present survey have demonstrated that a lack of insurance coverage is not the main reason for patients not consulting a center to be evaluated for bariatric surgery. Perceived barriers and lack of knowledge exist in both the minds of the general public and physicians., (2010 American Society for Metabolic and Bariatric Surgery. Published by Elsevier Inc. All rights reserved.)