Featured Research

from universities, journals, and other organizations

Impact of bariatric surgery on health depends on type of surgery, patient characteristics

Date:
October 15, 2013
Source:
Kaiser Permanente
Summary:
The impact of bariatric surgery on risk factors for cardiovascular disease depends on a variety of factors, including the type of surgery, sex of the patient, ethnic background, and pre-surgery body mass index.

The impact of bariatric surgery on risk factors for cardiovascular disease depends on a variety of factors, including the type of surgery, sex of the patient, ethnic background, and pre-surgery body mass index, according to a Kaiser Permanente study published today in Annals of Surgery.

Related Articles


Researchers examined the electronic health records of more than 4,000 Kaiser Permanente patients in Southern California who had bariatric surgery for weight loss between 2009 and 2011 to determine what factors led to remission- or reduction - of metabolic syndrome after surgery. Metabolic syndrome is a group of health conditions that increase a person's risk of coronary artery disease, stroke and type 2 diabetes. Patients were studied for up to two years after their bariatric surgery to determine if their metabolic syndrome improved.

Researchers found that non-Hispanic black and Hispanic patients were less likely than non-Hispanic white patients to experience metabolic syndrome remission. These differences in remission were not a result of greater weight loss during the follow-up period; racial and ethnic differences persisted even when researchers controlled for the rate of weight loss.

"Although we do not know the reasons for the racial and ethnic differences we saw, one explanation could be that the black and Hispanic patients had surgery when they are much heavier and sicker than the non-Hispanic white patients," said study lead author, Karen J. Coleman, PhD, of the Kaiser Permanente Department of Research & Evaluation in Pasadena, Calif. "Our study highlights that surgery may be an important intervention tool for people earlier in their weight gain trajectory. The heavier they become, the less likely that surgery will be successful at reducing these cardiovascular disease risk factors."

Researchers also found:

  • Women were more likely than men to experience remission,
  • Patients who were heavier at the time of their surgery were less likely to experience remission than those who were lighter, and
  • Patients who received the gastric sleeve, which is the fastest growing new bariatric procedure, were less likely to experience metabolic syndrome remission than patients who had a traditional gastric bypass.

According to the American Heart Association, 35 percent of Americans are affected by metabolic syndrome. People with metabolic syndrome have a two-fold risk for heart attack or stroke, and a five-fold increased risk for developing diabetes compared to individuals who do not have the condition. The AHA predicts that the cost to treat Americans with heart failure will increase to $53 billion annually by 2030.

Some individual markers of cardiovascular health were more likely to improve than others following bariatric surgery. For example, about 4 in 10 patients (44 percent) lost enough weight following surgery to no longer be considered obese, and a significant majority (85 percent) of patients' blood pressure returned to healthy levels.

"In the majority of patients, bariatric surgery may result in the remission of many cardiovascular disease risk factors, which could prevent those patients from experiencing more serious health conditions, such as heart attack and stroke," Coleman said. "The benefits of bariatric surgery are different for men and women and different racial/ethnic groups. This study highlights the importance of designing post-operative care models to address the unique challenges different genders and ethnic/racial groups face following bariatric surgery."

With more than 4,000 patients, this study had one of the largest sample sizes for bariatric surgery procedures, and included follow-up information on weight, blood pressure, quality of life, and laboratory and pharmacy data on the majority of patients in the sample. Previous studies in the area had sample sizes of 50 to 200 patients, most of whom were non-Hispanic white. Nearly half (49 percent) of the Kaiser Permanente study's sample were either Hispanic or non-Hispanic black, providing a unique opportunity to study the effect of bariatric surgery on metabolic syndrome in different racial/ethnic groups. In addition, this is one of the largest studies to examine the impact of the fastest growing bariatric procedure, the gastric sleeve, on patient health outcomes.

This study is part of Kaiser Permanente's ongoing efforts to understand the impacts of obesity and obesity-related conditions, such as type-2 diabetes, on a person's health. A Kaiser Permanente study published last year found almost half of adults with type 2 diabetes report acute and chronic pain, and close to one quarter report neuropathy, fatigue, depression, sleep disturbance, and physical or emotional disability. Another Kaiser Permanente study published in early 2012 found electronic health records and embedded tools can alert and direct pediatricians so they can better manage their young patients' weight.


Story Source:

The above story is based on materials provided by Kaiser Permanente. Note: Materials may be edited for content and length.


Journal Reference:

  1. Karen J. Coleman, Yii-Chieh Huang, Corinna Koebnick, Kristi Reynolds, Anny H. Xiang, Mary Helen Black, Sami Alskaf. Metabolic Syndrome Is Less Likely to Resolve in Hispanics and Non-Hispanic Blacks After Bariatric Surgery. Annals of Surgery, 2013; 1 DOI: 10.1097/SLA.0000000000000258

Cite This Page:

Kaiser Permanente. "Impact of bariatric surgery on health depends on type of surgery, patient characteristics." ScienceDaily. ScienceDaily, 15 October 2013. <www.sciencedaily.com/releases/2013/10/131015094558.htm>.
Kaiser Permanente. (2013, October 15). Impact of bariatric surgery on health depends on type of surgery, patient characteristics. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/2013/10/131015094558.htm
Kaiser Permanente. "Impact of bariatric surgery on health depends on type of surgery, patient characteristics." ScienceDaily. www.sciencedaily.com/releases/2013/10/131015094558.htm (accessed December 20, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Saturday, December 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Best Tips to Curb Holiday Carbs

The Best Tips to Curb Holiday Carbs

Buzz60 (Dec. 19, 2014) It's hard to resist those delicious but fattening carbs we all crave during the winter months, but there are some ways to stay satisfied without consuming the extra calories. Vanessa Freeman (@VanessaFreeTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Sierra Leone Bikers Spread the Message to Fight Ebola

Sierra Leone Bikers Spread the Message to Fight Ebola

AFP (Dec. 19, 2014) More than 100 motorcyclists hit the road to spread awareness messages about Ebola. Nearly 7,000 people have now died from the virus, almost all of them in west Africa, according to the World Health Organization. Video provided by AFP
Powered by NewsLook.com
Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
The Best Protein-Filled Foods to Energize You for the New Year

The Best Protein-Filled Foods to Energize You for the New Year

Buzz60 (Dec. 19, 2014) The new year is coming and nothing will energize you more for 2015 than protein-filled foods. Fitness and nutrition expert John Basedow (@JohnBasedow) gives his favorite high protein foods that will help you build muscle, lose fat and have endless energy. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins