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Severe obesity represents a chronic condition associated with significant metabolic and cardiovascular comorbidity, for which bariatric (metabolic and weight loss) surgery serves as an effective therapeutic option. This course reviews eligibility criteria, including body mass index thresholds and associated conditions, and outlines commonly performed procedures such as gastric bypass, sleeve gastrectomy, gastric banding, and biliopancreatic diversion. Emphasis is placed on durable weight loss, improvement in metabolic parameters, and reduction in cardiovascular risk. Participants learn principles of patient selection, preoperative risk stratification, perioperative management, and recognition of long-term complications, including nutritional deficiencies and dumping syndrome. The activity highlights existing practice gaps in referral and awareness of surgical benefits. Collaboration with an interprofessional team enhances patient outcomes through coordinated care, optimized risk management, and comprehensive long-term follow-up. Objectives: Identify patients with clinical indications for bariatric surgery based on established guideline criteria. Implement strategies to address perioperative complications in patients undergoing bariatric surgery. Apply effective counseling techniques to educate patients on potential adverse outcomes after bariatric surgery. Implement effective interprofessional team communication and coordination processes to improve cardiovascular outcomes in patients undergoing bariatric surgery. Access free multiple choice questions on this topic.

Bariatric surgery, also termed "metabolic and weight loss surgery," is an established and effective therapeutic modality for severe obesity and associated comorbidities. Obesity constitutes a major risk factor for cardiovascular disease, the leading cause of morbidity and mortality worldwide. Indications for bariatric surgery are generally based on body mass index (BMI). Eligibility for bariatric surgery includes a BMI above 40 kg/m2, or a BMI over 35 kg/m2 with 1 or more obesity-related comorbidities, such as type 2 diabetes mellitus, hypertension, or obstructive sleep apnea.[1] Bariatric procedures produce substantial weight loss and improve metabolic parameters, thereby ameliorating obesity-related comorbidities. The principal objective of bariatric surgery is to reduce gastric capacity, thereby restricting caloric intake and facilitating sustained weight loss. Multiple types of bariatric procedures are currently available in clinical practice. The Roux-en-Y gastric bypass (RYGB) combines restrictive and malabsorptive mechanisms. A small gastric pouch is created by transecting the proximal stomach and rerouting the proximal small intestine to the pouch. Connection of the distal small intestine to the Roux limb establishes the characteristic Y-shaped configuration. This procedure reduces gastric capacity and limits caloric and nutrient absorption.[2] Sleeve gastrectomy is a restrictive procedure. A substantial portion of the stomach is removed, leaving a narrow, tubular gastric sleeve.[3] Adjustable silicone gastric banding (ASGB) involves placing an inflatable band around the upper stomach to create a small gastric pouch. The band connects to a subcutaneous access port, allowing the pouch size to be adjusted by inflating or deflating the port.[4] Biliopancreatic diversion (BPD) with duodenal switch is a comprehensive surgical procedure combining restrictive and malabsorptive mechanisms. A substantial portion of the stomach is resected, and the proximal small intestine is rerouted to a new connection, forming a common channel.[5] Intragastric balloon placement is a nonsurgical, restrictive procedure. A deflated silicone balloon is introduced into the stomach via the oral cavity. Inflation of the balloon with saline or air reduces hunger sensations and facilitates weight loss.[6]

Biliopancreatic diversion (BPD) with duodenal switch is a comprehensive surgical procedure combining restrictive and malabsorptive mechanisms. A substantial portion of the stomach is resected, and the proximal small intestine is rerouted to a new connection, forming a common channel.[5] Intragastric balloon placement is a nonsurgical, restrictive procedure. A deflated silicone balloon is introduced into the stomach via the oral cavity. Inflation of the balloon with saline or air reduces hunger sensations and facilitates weight loss.[6] All bariatric procedures carry perioperative, short-term, and long-term risks and complications, with particular relevance to cardiovascular outcomes. This activity evaluates current evidence regarding the effects of bariatric surgery on the cardiovascular system. Detailed descriptions of procedural techniques are available in the activity discussing perioperative care for metabolic and bariatric surgery.[7]

Bariatric surgery, also referred to as metabolic and weight loss surgery, represents an effective therapeutic intervention for severe obesity and its associated comorbidities, particularly cardiovascular disease. Eligibility generally includes a BMI above 40 kg/m², or above 35 kg/m² with conditions such as type 2 diabetes, hypertension, or obstructive sleep apnea. Common procedures include Roux-en-Y gastric bypass, sleeve gastrectomy, adjustable gastric banding, biliopancreatic diversion with duodenal switch, and intragastric balloon placement. These interventions reduce gastric capacity and, in some cases, nutrient absorption, resulting in substantial and sustained weight loss. Evidence demonstrates improvements in metabolic parameters and reductions in cardiovascular events, heart failure, atrial fibrillation, and mortality. Despite these benefits, bariatric surgery carries perioperative risks and long-term complications, including venous thromboembolism, bleeding, dumping syndrome, and nutritional deficiencies that require careful monitoring. Optimal outcomes depend on coordinated interprofessional care. Clinicians evaluate surgical eligibility, perform risk stratification, and guide long-term management of obesity-related comorbidities. Surgeons collaborate with anesthesiologists and cardiology specialists to mitigate perioperative cardiovascular risk. Nurses provide perioperative monitoring, patient education, and postoperative support, while pharmacists assist with medication adjustments, micronutrient supplementation, and the management of therapies such as glucagon-like peptide-1 receptor agonists. Dietitians and other health professionals support nutritional counseling and long-term lifestyle modification. Effective communication among team members promotes appropriate procedure selection, early recognition of complications, and adherence to follow-up care, improving patient safety, cardiometabolic outcomes, and long-term weight management.

Selection of the most appropriate bariatric procedure requires careful consideration of the specific risks associated with each surgery. Postoperative mortality risk may be minimized by prioritizing the optimal surgical method, implementing preventive measures, promptly identifying complications, and providing targeted cardiovascular care. Regular postoperative assessments with the bariatric surgeon and primary care provider are essential. These evaluations monitor progress, detect adverse events, and guide medication adjustments. Referrals to other specialists, including a registered dietitian, mental health professional, and exercise physiologist, may be required to ensure comprehensive care. The registered dietitian plays a pivotal role in ensuring adherence to the prescribed postoperative dietary regimen. The mental health professional provides support and intervention for psychosocial challenges, including body dysmorphia or mood disturbances. The exercise physiologist develops safe and effective exercise programs essential for promoting weight loss and maintaining overall physical health. Postoperative evaluations and consultations with specialized healthcare providers are critical for long-term success after bariatric surgery. Attendance at these appointments and adherence to the healthcare team’s recommendations substantially increase the likelihood of positive outcomes and improvement in overall quality of life.