Featured Research

from universities, journals, and other organizations

More fat around internal organs may mean more complications after liver surgery

Date:
November 16, 2010
Source:
JAMA and Archives Journals
Summary:
The amount of intra-abdominal fat appears to be associated with the risk of complications following major liver surgery, according to a new report. However, appearing overweight or having a high body mass index were not associated with increased post-surgical risks.

The amount of intra-abdominal fat appears to be associated with the risk of complications following major liver surgery, according to a report in the November issue of Archives of Surgery, one of the JAMA/Archives journals. However, appearing overweight or having a high body mass index (BMI) were not associated with increased post-surgical risks.

About 65 percent of the U.S. population is currently overweight, with half of those qualifying as obese, according to background information in the article. The increased incidence of obesity "requires surgeons to examine more critically the effect of overweight and obesity on their patients," the authors write. "The literature currently presents mixed findings on the effect of overweight and obesity on various surgical populations, with different measures of obesity being used in these studies."

Katherine Morris, M.D., and colleagues at Memorial Sloan-Kettering Cancer Center, New York, studied 349 patients undergoing surgical removal of part of the liver between June 1996 and November 2001. Computed tomographic (CT) scans taken before surgery were used to assess the amount of perinephric fat, a measure of fat around the kidneys, which was used as a surrogate for intra-abdominal fat. In addition, the patients' BMI was calculated using height and weight data. The authors also used CT scans to measure outer abdominal fat. Complications were tracked through the cancer center's database.

Following the major liver operations, 230 patients (65.9 percent) had complications and nine patients (2.6 percent) died. The average length of hospital stay was 10.8 days.

As assessed by the amount of fat surrounding the kidney, patients with more intra-abdominal fat were more likely to have complications, including severe complications, had longer lengths of hospital stay and were more likely to die within 30 days than patients with less fat. Patients with a higher body mass index (BMI) had procedures that took longer; however, BMI and measures of outer abdominal fat were not associated with the rate of complications, occurrence of severe complications, length of stay or risk of death within 30 days.

BMI seems be a poor measure of the type of obesity that places abdominal surgery patients at risk, the authors note. "As defined by a simple, single surrogate measurement of perinephric fat, intra-abdominal fat was able to be used to risk stratify the patients for mortality, complication rate, severity of complications and increasing length of stay," they write.

"This should help surgeons be better able to identify high-risk patients and, conversely, not refuse an operation based on the presumed high risk of someone with external obesity. Now that most of our patients being considered for a major upper abdominal resection will have a preoperative computed tomography scan, the information provided by looking at levels of perinephric fat is easily determined and should not be ignored."


Story Source:

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


Journal Reference:

  1. Katherine Morris; Scott Tuorto; Mithat Gonen; Lawrence Schwartz; Ronald DeMatteo; Michael D'Angelica; William R. Jarnagin; Yuman Fong. Simple Measurement of Intra-abdominal Fat for Abdominal Surgery Outcome Prediction. Archives of Surgery, 2010; 145 (11): 1069-1073 DOI: 10.1001/archsurg.2010.222

Cite This Page:

JAMA and Archives Journals. "More fat around internal organs may mean more complications after liver surgery." ScienceDaily. ScienceDaily, 16 November 2010. <www.sciencedaily.com/releases/2010/11/101115174005.htm>.
JAMA and Archives Journals. (2010, November 16). More fat around internal organs may mean more complications after liver surgery. ScienceDaily. Retrieved September 18, 2014 from www.sciencedaily.com/releases/2010/11/101115174005.htm
JAMA and Archives Journals. "More fat around internal organs may mean more complications after liver surgery." ScienceDaily. www.sciencedaily.com/releases/2010/11/101115174005.htm (accessed September 18, 2014).

Share This



More Health & Medicine News

Thursday, September 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Artificial Sweetener Could Promote Diabetes

Artificial Sweetener Could Promote Diabetes

Newsy (Sep. 17, 2014) Doctors once thought artificial sweeteners lacked the health risks of sugar, but a new study says they can impact blood sugar levels the same way. Video provided by Newsy
Powered by NewsLook.com
Ebola Vaccine Trial Gets Underway at Oxford University

Ebola Vaccine Trial Gets Underway at Oxford University

AFP (Sep. 17, 2014) A healthy British volunteer is to become the first person to receive a new vaccine for the Ebola virus after US President Barack Obama called for action against the epidemic and warned it was "spiralling out of control." Duration: 01:02 Video provided by AFP
Powered by NewsLook.com
Obesity Rates Steady Even As Americans' Waistlines Expand

Obesity Rates Steady Even As Americans' Waistlines Expand

Newsy (Sep. 17, 2014) Researchers are puzzled as to why obesity rates remain relatively stable as average waistlines continue to expand. Video provided by Newsy
Powered by NewsLook.com
President To Send 3,000 Military Personnel To Fight Ebola

President To Send 3,000 Military Personnel To Fight Ebola

Newsy (Sep. 16, 2014) President Obama is expected to send 3,000 troops to West Africa as part of the effort to contain Ebola's spread. Video provided by Newsy
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:
from the past week

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