Navigation Links
BMI criteria for obesity surgery should be lowered, UT Southwestern researchers suggest
Date:12/18/2007

DALLAS Dec. 18, 2007 UT Southwestern Medical Center researchers have found that the existing body mass index criteria for obesity surgery often excludes a group of obese patients at risk of cardiovascular disease.

The study, appearing in the December issue of the journal Surgery for Obesity and Related Diseases, is among the first to evaluate the risk-factor relationship between body mass index (BMI) and cardiovascular disease as it relates to bariatric surgery criteria, said Dr. Edward Livingston, chairman of GI/endocrine surgery at UT Southwestern and lead author of the study.

Our results show that cardiovascular risk factors do not necessarily worsen with increasing obesity, Dr. Livingston said. They also support the concept that obesity, by itself, doesnt trigger an adverse cardiovascular risk profile or increased risk of death.

The researchers examined patient data from the Third National Health and Nutrition Examination Survey database for the presence of known cardiovascular risk factors as a function of obesity. The survey was a cross-sectional study conducted from 1988 to 1994. All 17,234 participants had a BMI greater than 20.

BMI is a weight-to-height ratio commonly used in doctors offices to gauge obesity. A normal BMI is between 18.5 and 25, whereas someone with a BMI of 40 or more is at least 100 pounds over their recommended weight and is considered morbidly obese.

Bariatric weight-loss surgery is currently recommended for patients with a BMI greater than 40, as well as for patients with a BMI greater than 35 who also suffer from a life-threatening illness, such as non-insulin dependent diabetes, sleep apnea or heart disease.

The study findings show that some morbidly obese patients have better cardiovascular disease risk profiles than those who are less obese. In particular, the researchers found that cardiovascular risk factors can be much worse in many individuals with a BMI as low as 30 than they are for some surgical candidates with higher BMIs.

This suggests that some patients who are obese but not morbidly obese could benefit from bariatric surgery, which can help reduce cardiovascular disease, said Dr. Livingston.

Dr. Nicola Abate, associate professor of internal medicine in the Center for Human Nutrition at UT Southwestern and the studys co-author, said its possible that very obese patients simply have a greater capacity to store excessive calories in their adipocytes, or fat cells, thereby preventing excessive fat from spilling into the bloodstream, where it contributes to heart disease.

Our findings suggest that there is a group of individuals who have an almost unlimited ability to store excess calories as fat. This prevents changes in plasma metabolites, such as triglycerides and cholesterol, which promote risk for heart disease, Dr. Abate said. In contrast, those who cant store as much fat and who only accumulate fat in the upper body often have excessive plasma concentrations of triglycerides and cholesterol, which will increase their risk for heart disease. Even though their BMI may be below the current recommended cutoff, these patients could potentially benefit from bariatric surgery.


'/>"/>

Contact: Kristen Holland Shear
kristen.hollandshear@utsouthwestern.edu
214-648-3404
UT Southwestern Medical Center  
Source:Eurekalert

Related medicine news :

1. Researchers estimate about 9 percent of US children age 8 to 15 meet criteria for having ADHD
2. Nations healthcare leaders to announce new NCQA criteria for PCMH Model at healthcare summit
3. Health Care Leaders to Use New National Criteria for Patient-Centered Medical Home
4. New Test Criteria Spots Rheumatoid Arthritis Sooner
5. Criteria Predict Womens 5-Year Risk for Fracture
6. Virus Could Help Drive Obesity
7. Surgery for severe obesity saves lives
8. Obesity Doesnt Always Equal Diabetes
9. Obesity Rate in U.S. Still Climbing
10. Treating diabetes during pregnancy can break link to childhood obesity
11. ZIP codes and property values predict obesity rates
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
BMI criteria for obesity surgery should be lowered, UT Southwestern researchers suggest
(Date:6/27/2016)... ... 2016 , ... TopConsumerReviews.com recently awarded their highest five-star rating to Best Buy ... in the United States and Canada wear eyeglasses. Once considered to be a purely ... make a fashion statement. Even celebrities use glasses as a way of creating an ...
(Date:6/26/2016)... ... ... Kasmer, a legally blind and certified personal trainer is helping to develop a weight loss ... plans to fix the two major problems leading the fitness industry today:, ... , They don’t eliminate all the reasons people quit their exercise program ...
(Date:6/25/2016)... , ... June 25, 2016 , ... "With 30 hand-drawn ... specific project," said Christina Austin - CEO of Pixel Film Studios. , ProHand ... all within Final Cut Pro X . Simply select a ProHand generator and ...
(Date:6/25/2016)... , ... June 25, 2016 , ... Conventional wisdom preaches ... success. In terms of the latter, setting the bar too high can result in ... than just slow progress toward their goal. , Research from PsychTests.com ...
(Date:6/24/2016)... Dallas, Texas (PRWEB) , ... June 24, 2016 ... ... 12th International Conference and Scientific Sessions in Dallas that it will receive two ... Announcement of the grants came as PHA marked its 25th anniversary by recognizing ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... Dublin ... of the " Global Markets for Spectroscopy Equipment" ... This report focuses on the global ... including its applications in various applications. The report deals ... three main industries: pharmaceutical and biotechnology, food and beverage, ...
(Date:6/24/2016)... -- The Academy of Managed Care Pharmacy (AMCP) today ... allow biopharmaceutical companies to more easily share health care ... coverage decisions, a move that addresses the growing need ... The recommendations address restrictions in the sharing of product ... a prohibition that hinders decision makers from accessing HCEI ...
(Date:6/24/2016)... SAN CLEMENTE, Calif. , June 24, 2016  American ... function testing company, is now able to perform sophisticated lung assessments ... ndd Medical Technologies , Inc. Patients are no ...  Thanks to ndd,s EasyOne PRO ® , ARL patients like Jeanne ... needed testing done in the comfort of her own home. ...
Breaking Medicine Technology: