Featured Research

from universities, journals, and other organizations

Ottawa COPD Risk Scale: New tool to identify patients at risk of adverse events, death

Date:
February 18, 2014
Source:
Canadian Medical Association Journal
Summary:
A new decision tool will help emergency physicians everywhere identify patients with chronic obstructive pulmonary disease (COPD) who are at risk of serious complications or death. Chronic obstructive pulmonary disease, usually caused by smoking, is a leading cause of hospital admission among seniors, and more than one-third of people hospitalized for COPD end up at an emergency department within 30 days from discharge. It can be challenging for emergency physicians to determine which patients with COPD should be admitted because, up until now, there has been little evidence to guide them about the risk factors for adverse events in patients with this condition.

A new decision tool will help emergency physicians everywhere identify patients with chronic obstructive pulmonary disease (COPD) who are at risk of serious complications or death. The Ottawa COPD Risk Scale was published today in CMAJ (Canadian Medical Association Journal)

"We expect this risk scale, once fully validated, will be used widely in emergency departments to improve patient safety by identifying those who need to be admitted to hospital and those who could safely be sent home," says Dr. Ian Stiell, senior scientist at the Ottawa Hospital Research Institute and professor in Department of Emergency Medicine, University of Ottawa, Ottawa, Ontario. Dr. Stiell is world renowned for creating highly useful decision rules, such as the Ottawa Ankle Rules and Canadian C-Spine Rule.

Chronic obstructive pulmonary disease, usually caused by smoking, is a leading cause of hospital admission among seniors. In addition, more than one-third of people hospitalized for COPD end up at an emergency department within 30 days from discharge.

It can be challenging for emergency physicians to determine which patients with COPD should be admitted because, up until now, there has been little evidence to guide them about the risk factors for adverse events in patients with this condition. Adverse events include death within 30 days of visiting an emergency department, intubation or ventilation, myocardial infarction and other serious events.

Researchers looked at data on 945 patients aged 50 years or older in six Canadian teaching hospitals in Ottawa, Toronto, Kingston (Ontario), Montr้al, Quebec City (Quebec), and Edmonton (Alberta) to determine characteristics associated with short-term adverse events. After analysing 20 clinical and laboratory predictors of risk, they developed the Ottawa COPD Risk Scale, a 10-point scale that includes elements from a patient's history, examination or tests that can help emergency physicians determine the level of risk associated with discharging a patient.

The risk factors are easy to determine, do not need expensive testing and provide physicians with a quantitative estimate of risk for adverse events in patients with COPD.

"We found that the risk of a serious adverse event varied from 2.2%, for a score of 0, to 91.4%, for a total score of 10," write the authors.

The researchers also found that 62% of COPD patients were being sent home from emergency departments in Canada, compared to 20% in the United States. They suggest that this is partly due to bed shortages and the resulting pressures for physicians to be sure that admission to hospital is necessary.

"We are concerned by the number of serious adverse events among patients with COPD who were discharged from the emergency department," they write. "Identification of high-risk characteristics by physicians has the potential to substantially improve patient safety by helping to ensure that patients who are most at risk for poor outcomes are admitted."

They suggest the tool could also be used to identify patients who should have early follow-up for COPD after discharge from hospital.

"Once validated, this scale will ultimately benefit both patients and health care systems by ensuring appropriate admissions, targeting those who need early follow-up and diminishing unnecessary hospital admissions," they conclude.


Story Source:

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


Journal Reference:

  1. I. G. Stiell, C. M. Clement, S. D. Aaron, B. H. Rowe, J. J. Perry, R. J. Brison, L. A. Calder, E. Lang, B. Borgundvaag, A. J. Forster, G. A. Wells. Clinical characteristics associated with adverse events in patients with exacerbation of chronic obstructive pulmonary disease: a prospective cohort study. Canadian Medical Association Journal, 2014; DOI: 10.1503/cmaj.130968

Cite This Page:

Canadian Medical Association Journal. "Ottawa COPD Risk Scale: New tool to identify patients at risk of adverse events, death." ScienceDaily. ScienceDaily, 18 February 2014. <www.sciencedaily.com/releases/2014/02/140218124530.htm>.
Canadian Medical Association Journal. (2014, February 18). Ottawa COPD Risk Scale: New tool to identify patients at risk of adverse events, death. ScienceDaily. Retrieved August 21, 2014 from www.sciencedaily.com/releases/2014/02/140218124530.htm
Canadian Medical Association Journal. "Ottawa COPD Risk Scale: New tool to identify patients at risk of adverse events, death." ScienceDaily. www.sciencedaily.com/releases/2014/02/140218124530.htm (accessed August 21, 2014).

Share This




More Health & Medicine News

Thursday, August 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Possible Ebola Patient in Isolation at California Hospital

Possible Ebola Patient in Isolation at California Hospital

Reuters - US Online Video (Aug. 20, 2014) — A patient who may have been exposed to the Ebola virus is in isolation at the Kaiser Permanente South Sacramento Medical Center. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Raw: World's Oldest Man Lives in Japan

Raw: World's Oldest Man Lives in Japan

AP (Aug. 20, 2014) — A 111-year-old Japanese was certified as the world's oldest man by Guinness World Records on Wednesday. Sakari Momoi, a native of Fukushima in northern Japan, was given a certificate at a hospital in Tokyo. (Aug. 20) Video provided by AP
Powered by NewsLook.com
Do More Wedding Guests Make A Happier Marriage?

Do More Wedding Guests Make A Happier Marriage?

Newsy (Aug. 20, 2014) — A new study found couples who had at least 150 guests at their weddings were more likely to report being happy in their marriages. Video provided by Newsy
Powered by NewsLook.com
Ebola-Hit Sierra Leone's Freetown a City on Edge

Ebola-Hit Sierra Leone's Freetown a City on Edge

AFP (Aug. 19, 2014) — Residents of Sierra Leone's capital voice their fears as the Ebola virus sweeps through west Africa. Duration: 00:56 Video provided by AFP
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