Featured Research

from universities, journals, and other organizations

Pneumonia most common infection after heart surgery

Date:
November 30, 2011
Source:
American Heart Association
Summary:
Pneumonia -- not a deep incision surgical site infection -- is the most common serious infection after heart surgery, according to new research.

Pneumonia -- not a deep incision surgical site infection -- is the most common serious infection after heart surgery, according to new research presented at the American Heart Association's Scientific Sessions 2011.

The study also revealed that most infections occur about two weeks after surgery, not one week as physicians previously thought.

"It's not what we expected to find," said Michael A. Acker, M.D., the study's lead researcher and professor and chief of cardiovascular surgery at the University of Pennsylvania Medical Center in Philadelphia, Pa.

In abstract 12247, researchers analyzed more than 5,100 patients in a heart surgery registry. Patients, average age 64, were treated at nine U.S. academic medical centers and one Canadian center. The median time to major infection was 14 days after heart surgeries. Forty-three percent of all major infections occurred after hospital discharge.

"Half of these patients had no evidence of infection before they were discharged from the hospital," Acker said. "Then they had to return because of the new infection. One implication is that patients must be followed more closely after discharge."

In this study, which excluded patients who were infected before surgery, researchers found 761 infections: 300 were classified as major infections (occurring in 6 percent of patients) and 461 were minor (in 8.1 percent of patients). Of the major infections:

  • Pneumonia, infection of the lungs, occurred in 2.4 percent of all patients.
  • C. difficile colitis, an intestinal infection, occurred in 1.0 percent.
  • Bloodstream infections occurred in 1.1 percent.
  • Deep-incision surgical site infections occurred in 0.5 percent.

Minor infections included urinary tract and superficial incision site infections.

The most commonly performed procedures were isolated coronary artery bypass graft and aortic

and mitral valve surgeries. Seventy-four percent were elective surgeries and 26 percent were non-elective or emergency surgeries.

Several risk factors appeared to increase the risk of developing infection, including congestive heart failure, hypertension, chronic lung disease, corticosteroid use prior to surgery, and length of cardiopulmonary bypass time.

"In the next level of analysis, the focus will be on differences in care, from the types of dressings, the types of antibiotics, and the types of surgical preparations, to show what processes of care are associated with decreased incidence of infections," Acker said. "The registry will allow us to modify our best practices to manage post-operative infections."

Co-authors are Michael Argenziano, M.D.; John D. Puskas, M.D., M.Sc.; T. Bruce Ferguson, M.D.; Annetine C. Gelijns, Ph.D.; Keith Horvath, M.D.; Marissa A. Miller, DVM, MPH; Stacey Welsh, R.N.; Ellen Moquete, R.N.; Kevin N. Su, B.S. Alan Weinberg, M.S.; Alan J. Moskowitz, M.D.; Patrick T. O'Gara, M.D. and Eugene H. Blackstone, M.D.

The National Heart, Lung, and Blood Institute, National Institute of Neurological Disorders and Stroke and Canadian Institutes of Health Research funded the study.

Skin preparation reduces cardiac implantable device infections

In another study (abstract 10041), special skin preparations for 3,700 patients significantly reduced infections from cardiac implantable electronic devices.

Researchers at a Milwaukee hospital washed patients' skin with a special antibacterial solution the night before and morning of the procedure. They also included a strict three-minute drying time for the surgical skin preparation. These steps decreased implant infection rates from 1 percent to 0.24 percent at a year following the implant placement.

More staphylococcal bacterial infections are occurring after implantation procedures, said Renee Koeberl, R.N., M.S.N., lead author of the study.

Co-authors are Mohamed S. Rahman, M.D.; Rachel Pedersen, B.A.; Jasbir Sra, M.D.; Masood Akhtar, M.D. and M. Eyman Mortada, M.D


Story Source:

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


Cite This Page:

American Heart Association. "Pneumonia most common infection after heart surgery." ScienceDaily. ScienceDaily, 30 November 2011. <www.sciencedaily.com/releases/2011/11/111115094603.htm>.
American Heart Association. (2011, November 30). Pneumonia most common infection after heart surgery. ScienceDaily. Retrieved July 29, 2014 from www.sciencedaily.com/releases/2011/11/111115094603.htm
American Heart Association. "Pneumonia most common infection after heart surgery." ScienceDaily. www.sciencedaily.com/releases/2011/11/111115094603.htm (accessed July 29, 2014).

Share This




More Health & Medicine News

Tuesday, July 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deadly Ebola Virus Threatens West Africa

Deadly Ebola Virus Threatens West Africa

AP (July 28, 2014) West African nations and international health organizations are working to contain the largest Ebola outbreak in history. It's one of the deadliest diseases known to man, but the CDC says it's unlikely to spread in the U.S. (July 28) Video provided by AP
Powered by NewsLook.com
$15B Deal on Vets' Health Care Reached

$15B Deal on Vets' Health Care Reached

AP (July 28, 2014) A bipartisan deal to improve veterans health care would authorize at least $15 billion in emergency spending to fix a veterans program scandalized by long patient wait times and falsified records. (July 28) Video provided by AP
Powered by NewsLook.com
Two Americans Contract Ebola in Liberia

Two Americans Contract Ebola in Liberia

Reuters - US Online Video (July 28, 2014) Two American aid workers in Liberia test positive for Ebola while working to combat the deadliest outbreak of the virus ever. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Traditional African Dishes Teach Healthy Eating

Traditional African Dishes Teach Healthy Eating

AP (July 28, 2014) Classes are being offered nationwide to encourage African Americans to learn about cooking fresh foods based on traditional African cuisine. The program is trying to combat obesity, heart disease and other ailments often linked to diet. (July 28) Video provided by AP
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