360. Obesity: Lifestyle & Pharmacologic Management of Obesity with Dr. Ambarish Pandey
Feb 19, 2024
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Discussing the importance of managing obesity to prevent cardiovascular disease, the podcast covers lifestyle recommendations, pharmacologic treatment options, and future therapies. Topics include tailored counseling, policy efforts to address obesity as a public health concern, advances in weight loss medications such as semaglutide, and the intersection of obesity medicine and heart failure.
Obesity assessment should go beyond BMI, focusing on waist circumference as a key indicator of cardiovascular risk.
Lifestyle modifications, including diet changes and physical activity, are crucial in managing obesity and improving cardiovascular health.
Severe obesity requires comprehensive strategies like behavioral modifications, pharmacotherapies, or surgical weight loss to address cardiovascular risk factors effectively.
Deep dives
Definition and Assessment of Obesity
Obesity is traditionally defined using the body mass index (BMI), with a cutoff of 30 kilograms per meter squared. The podcast discusses a case of Mr. Antre who falls in the overweight range with a BMI of 29, emphasizing the importance of considering other anthropometric measures like waist circumference, where Mr. Antre shows central obesity. For obese individuals, waist circumference above 102 centimeters for men is a key indicator of cardiovascular risk and central obesity, highlighting the significance of detailed assessment beyond just BMI.
Lifestyle Recommendations for Obesity Management
The podcast stresses the importance of lifestyle modifications in obesity management, focusing on reducing caloric intake by at least 500 kilocalories a day and tailoring diets to include plant-based, low carbohydrate, and low-fat options. Recommendations include high-protein diets for satiety, emphasis on healthy foods like fruits and vegetables, and incorporating intermittent fasting or time-restricted eating patterns. Physical activity is also highlighted, with guidelines suggesting up to 150 minutes of moderate-intensity exercise per week to improve cardiovascular health.
Severe Morbid Obesity and Counseling Approach
The podcast addresses severe morbid obesity, categorizing it as a BMI of 40 or greater or a BMI of 35 or greater with comorbidities. With a higher cardiovascular risk in these individuals, the emphasis shifts to greater caloric restriction, behavioral modifications, and addressing other cardiovascular risk factors. Strategies like surgical weight loss or pharmacotherapies are considered for patients with high BMI and increased cardiovascular risk, showcasing a comprehensive approach tailored to individual patient needs.
Social Determinants of Health and Obesity Management
The discussion delves into how social determinants of health significantly impact obesity and cardiovascular risk factors, especially among disadvantaged populations. Food insecurity, lack of access to healthy foods, and unsafe neighborhoods limiting physical activity are highlighted. The podcast emphasizes the importance for clinicians to understand the root causes of patients' eating and lifestyle behaviors, advocating for tailored interventions addressing modifiable drivers and promoting healthier choices, coupled with awareness of patients' socioeconomic and environmental challenges.
Policy and Legislation in Obesity Management
The podcast delves into the role of policy and legislation in combating obesity as a public health issue, citing initiatives like taxation on unhealthy foods and sugary beverages, nutrition labeling systems, and reduction of marketing of unhealthy foods. Challenges in implementing such policies at federal levels due to industry lobbying are discussed, emphasizing the need for governmental support in promoting healthier dietary choices. The conversation underscores the importance of a multifaceted approach at societal and individual levels to address obesity through policy interventions and health promotion activities.
CardioNerds Dr. Rick Ferraro (CardioNerds Academy House Faculty and Cardiology Fellow at JHH), Dr. Gurleen Kaur (Director of the CardioNerds Internship and Internal Medicine resident at BWH), and Dr. Alli Bigeh (Cardiology Fellow at the Ohio State) as they discuss the growing obesity epidemic and how it relates to cardiovascular disease with Dr. Ambarish Pandey (Cardiologist at UT Southwestern Medical Center). Show notes were drafted by Dr. Alli Bigeh. CardioNerds Academy Intern and student Dr. Shivani Reddy performed audio editing.
Obesity is an important modifiable risk factor for cardiovascular disease, and it is on the rise! Here, we discuss how to identify patients with obesity and develop an approach to address current lifestyle recommendations. We also discuss the spectrum of pharmacologic treatment options available, management strategies, and some therapy options that are on the horizon.
This episode was produced in collaboration with the American Society of Preventive Cardiology (ASPC) with independent medical education grant support from Novo Nordisk. See below for continuing medical education credit.
Claim CME for this episode HERE.
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Pearls and Quotes - Lifestyle & Pharmacologic Management of Obesity
Identify obese patients not just using BMI, but also using anthropometric measurements such as waist circumference (central adiposity).
Lifestyle modifications are our first line of defense against obesity! Current recommendations emphasize caloric restriction of at least 500kcal/day, plant-based and Mediterranean diets, and getting at least 150 minutes of moderate-intensity weekly exercise.
Dive into the root cause of eating and lifestyle behaviors. It is crucial to address adverse social determinants of health with patients to identify the driving behaviors, particularly among those individuals of low socioeconomic status.
Newer weight loss agents are most effective at achieving and maintaining substantial weight loss, in particular Semaglutide (GLP-1) and Tirzepatide (GLP-1/GIP). Initiate at a low dose and titrate up slowly.
Obesity is a risk factor and potential driver for HFpEF. Targeted treatment options for obese patients with HFpEF include SGLT-2 inhibitors and semaglutide, which recently showed improvement in quality of life and exercise capacity in the STEP-HFpEF trial.
Show notes - Lifestyle & Pharmacologic Management of Obesity
How do we identify and define obesity?
The traditional definition of obesity is based on body mass index (BMI), defined as BMI greater than or equal to 30.0 kg/m2 (weight in kg/height in meters).Recognize that BMI may not tell the whole story. A limitation of BMI is it does not reflect differences in body composition and distribution of fat.Certain patients may not meet the BMI cutoff for obesity but have elevated cardiovascular risk based on increased central adiposity, specifically those that are categorized as overweight.The devil lies in the details of anthropometric parameters. Include waist circumference measurements as part of an obesity assessment of visceral adiposity.
A waist circumference greater than 40 inches for men and greater than 35 inches for women is considered elevated.
What are some current lifestyle recommendations for obese patients?
Lifestyle recommendations are the first line of defense against obesity.Current ACC/AHA guidelines suggest a target of reducing caloric intake by 500 kcal per day. For patients with severe obesity, this number may be higher.Emphasis on hypocaloric plant-based and Mediterranean dietsReduce total carbohydrate intake to 50-130 grams per day.Focus on a low-fat diet with less than 30% of total energy coming from fat with a high-protein diet to main...
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