Obesity Flashcards
What is obesity?
Accumulation of excess and abnormal body fat (adiposity)
Obesity is a (acute/chronic) condition that is ______________ and _____________.
Chronic
Progressive
Relapsing
What BMI used to be defined as obese? Why do we no longer rely only on this measurement?
BMI ≥30 kg/m2
- Underestimates the effects of excess body weight on health
- doesn’t take into account weight distribution and ectopic adiposity
In addition to BMI, what other marker do we now use to measure cardiometabolic risk?
Waist circumference
Even with BMI and waist circumference, what limitations still exist with this system of calculating cardiometabolic health?
- System was created using data from White European males (racial differences)
- Less accurate for those have not reached full growth
- Lean or muscular adults
- Adults 65+
What’s a better classification tool for obesity?
Edmonton Obesity Staging System
What BMI is considered underweight, normal, and overweight?
Underweight <18.5
Normal/Healthy 18.5-24.9
Overweight= 25.0-29.9
BMI 30 is when obese starts
What are the classes of obesity?
What are corresponding BMIs?
Class 1= 30-34.9
Class 2= 35-39.9
Class 3= 40-49.9
Class 4= 50-59.9
Class 5= ≥60
What are root drivers of weight gain?
4M Framework
- Mechanical
- Mental
- Metabolic
- and/or social Milieu
What medication classes are associated with weight gain?
- TCA
- Mirtazapine
- Tamoxifen
- First gen antipsychotics
- Second gen antipsychotics
- Dexamethasone
- Prednisone
- Hormones
- Insulin
- Meglitinides
- Sulfonylureas
- Thiazolidinediones
- Lithium (Mania)
- Flunarizine (Migraine)
- Pizotifen (Migraine)
- Valproic acid (Seizures)
- Carbamazepine (Seizures)
What are antidepressant alternatives that do not cause weight gain?
Bupropion
Fluoxetine
Sertraline
What antipsychotic alternatives do not cause weight gain?
Aripiprazole
Ziprasidone
What contraception method alternative would not cause weight gain?
Barrier methods
Copper IUD
What diabetes medication alternative would not cause weight gain?
Acarbose
Metformin
DPP-4 inhibitor
GLP-1 receptor agonists
SGLT2 inhibitor
What seizure medication alternative would not cause weight gain?
Topiramate
Lamotrigine
Is there a cure for obesity?
No
Successful management of obesity involves a long-term “________” strategy that allows patient to reduce body weight and prevent weight gain. There are intermittent periods of ___________ and ___________, commonly referred to as “_________ __________”
coping
remission and relapse
weight cycling
What are Obesity Canada’s 5As of obesity management?
- Ask
- Ask permission to discuss weight - Assess
- Assess BMI, waist circumference, obesity stage, and causes - Advise
- Discuss health risks, benefits, and treatment options - Agree
- Agree on realistic weight loss targets - Assist
- Assist in addressing barriers and follow/up
What non-pharm should we avoid?
Avoiding simplistic counselling approaches like “eat less, move more”
What non-pharm is our backbone therapy?
Multicomponent behavioural interventions like:
- Healthy food choices
- Increased physical activity
When adjusting patient’s diet, what are some things to keep in mind?
- Safety
- Efficacy
- Nutritional adequacy
- Culturally acceptable
- Affordable
What does the evidence say about short-term and long-term calorie-restricted diet?
Short term= comparable and significant weight loss if adherent
Long term= efficacy and safety not established.
What’s one thing we have to watch out for if calorie restricting our patients?
Associated with neurobiological pathway changes that favour increased food intake and weight gain.
Is exercise alone an effective strategy for weight loss?
No. More effective if combined with pharmacotherapy or diet.
How does physical activity benefit patient?
- Reduces cardiometabolic risk
- Enhances patient’s sense of well-being
- Promote weight maintenance
- Reduce insulin resistance
- Reduce loss of bone mineral density
Patient’s fitness level should be assessed prior to starting exercise program. When is a treadmill stress test considered?
Individuals with elevated CV risk
What exercise regimen can we recommend to patients?
Spend ≥30 minutes doing continuous or intermittent physical activity at least 5 days each week