Will New Body Fat Tools Change Practice?
In the next 10 years, there may be an affordable gadget to scan the body to determine visceral vs subcutaneous deposition of fat — like radiography for tissue. Now, three-dimensional (3D) total-body scanners can obtain body composition, but they are extremely expensive. The more important clinical question is: How will the use of these imaging modalities change your practice protocol for a particular patient?
Think about the FibroScan, a type of ultrasound used to determine fatty liver disease and fibrosis. We order the test for those patients in whom we already have a strong suspicion for liver disease and, in obesity practices, for fatty liver and metabolic-associated fatty liver disease or metabolic associated steatohepatitis.
The test results do much to educate the patient and help the patient understand the need for aggressive treatment for their obesity. But it doesn’t necessarily change the clinician’s practice protocols and decisions. We would still recommend weight management and medications or surgery to patients regardless of the findings.
A FibroScan is an expense, and not all primary care or endocrine practitioners may feel it necessary to purchase one for the added benefit of patient education. And I would argue that a 3D body scanner is a great tool but more for educational purposes than to really determine practice decision-making or outcomes.
In the meantime, an old-fashioned physical examination, along with a thorough medical, social, and family history should give even the busiest primary care provider enough information to decide whether their patient is a candidate for preventive measures to reduce body fat with diet, exercise, and medication as well as whether the patient is a candidate for metabolic bariatric surgery. Higher suspicion of cardiovascular risk at lower BMI ranges for various ethnicities can help primary care providers pick up on the patients with low BMI but who are at higher risk for type 2 diabetes or prediabetes and cardiovascular disease.
So the answer to whether we need a better measure than the BMI: Yes, we do. We need a physical examination on all patients.
Dr. Apovian, professor of medicine, Harvard Medical School, and codirector, Center for Weight Management and Wellness, Brigham and Women’s Hospital, both in Boston, Massachusetts, disclosed ties with Altimmune, CinFina Pharma, Cowen and Company, EPG Communication Holdings, Form Health, Gelesis, L-Nutra, NeuroBo Pharm, Novo, OptumRx, Pain Script, Palatin, Pursuit by You, Roman Health, Xeno, and Riverview School.
A version of this article appeared on Medscape.com.