Navigation Links
Heart's sounds can help diagnose heart failure
Date:8/10/2010

CINCINNATIFor emergency department patients with shortness of breath and a risk of heart failure, physicians usually grab one thing first: a stethoscope.

It allows them to hear the S3, an abnormal third sound in the heart's rhythm strongly associated with cardiac disease and heart failure. However, the low-frequency, low-pitch sound is notoriously very difficult to hear with a stethoscope alone.

In a study available online in the American Journal of Emergency Medicine, a UC emergency medicine physician concludes that acoustic cardiography, a new technology combining a 12-leed ECG with cardiac acoustic data, can aid physicians in detecting the S3ultimately increasing the accurate diagnosis of acute heart failure in certain subsets of patients.

The study involved analyzing data from one of the largest emergency department-based trials in acute heart failure, the HEart failure and Audicor technology for Rapid Diagnosis and Initial Treatment (HEARD-IT) multinational trial. The trial, conducted at nine sites from March to October 2006, measured the diagnostic accuracy provided by adding acoustic cardiography to an emergency medicine physician's tools.

"The S3 is highly associated with heart failure," says Sean Collins, MD, UC emergency medicine associate professor and lead author of the study. "So we studied how measuring the presence of the S3 changed physicians' impressions of what was going on, how it potentially changed their workup and treatment for patients."

In this publication, Collins and his colleagues conducted a secondary analysis on the HEARD-IT results, focusing on specific subgroups of patients presenting a harder diagnostic puzzle. Those include obese patients, patients with kidney failure and patients with an intermediate level of b-type natriuretic peptide, a biomarker which has been associated with acute heart failure and cardiovascular risk.

They found that adding acoustic cardiography to those patients with indeterminate BNP levels improved diagnostic accuracy 22 percent.

"Our findings suggest we diagnose heart failure only about half the time in these patients without acoustic cardiography," says Collins. "With it, we improve the accuracy to about 70 percent. It's pretty helpful in this subset of patients."

Diagnosing them in the emergency department can put patients on the right pathway to treatment more quickly, says Collins, enabling the physician to streamline further testing and treatment. That's a particular concern with heart failure patients, he says, because many of these patients have associated conditions, such as chronic obstructive pulmonary disease, that make pinpointing the cause of their emergency department visit more difficult.

While Collins says that the HEARD-IT trial didn't make the argument for acoustic cardiography to be used in every patient suspected of having heart failure, this secondary analysis suggests it could be helpful in treating these subgroups.

"It shows that we need to get better at listening for the S3," says Collins, "and this study would suggest that if we don't hear it with our ears, that technology like this might be useful."


'/>"/>

Contact: Katy Cosse
kathryn.cosse@uc.edu
513-558-0207
University of Cincinnati Academic Health Center
Source:Eurekalert

Related medicine news :

1. 2 BigHearts Board Announces Addition to Board of Directors: Michael Unetich
2. High-Stress Jobs Tax Womens Hearts, Too
3. Stem cells from surgery leftovers could repair damaged hearts
4. Mans Best Friend Helps Mend Broken Hearts
5. Tiny Fish Might Help Humans Fix Damaged Hearts
6. Hearts and Minds Promotes Wellness; African Americans Living with Mental Illness Have Higher Risk for Other Illnesses.
7. Researchers discover chemical that may protect hearts of muscular dystrophy patients
8. Healing Wounds and Hearts: Warrior Weekend Helps Soldiers and Marines Relax and Recover
9. Hearts of Hospice Patients Being Needlessly Shocked
10. “Hearts and Minds” Education Program Launched: On Average, People with Mental illness Live 25 Years Less than Other Americans
11. Summer Sounds Can Lead to Hearing Loss
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/9/2016)... ... February 09, 2016 , ... URise Products ... newest mobility device, the StandUp Walker. Made entirely in the USA, the StandUp ... 50 years. , StandUp Walker’s novel patent-pending design offers 2-in-1 benefits of ...
(Date:2/9/2016)... ... 2016 , ... Establishment Labs, a global breast implant and medical technology company, ... of Directors. , “We are honored to welcome David to our Board ... Jose Chacon Quiros, CEO of Establishment Labs. "David’s knowledge and experience will be invaluable ...
(Date:2/9/2016)... ... February 09, 2016 , ... ... service to expand access to affordable hearing aids , increase industry transparency, ... individuals in the United States. , “For the average consumer, the hearing aid ...
(Date:2/9/2016)... (PRWEB) , ... February 09, 2016 , ... ... grout cleaning and sealing company , is proud to announce that many of ... superior levels of customer service. The hard surface restoration franchises received customer recognition ...
(Date:2/8/2016)... (PRWEB) , ... February 08, 2016 , ... ... launched its newly redesigned website, federallabs.org . The site houses a wealth ... license available federal technologies through the process called technology transfer (T2). As a ...
Breaking Medicine News(10 mins):
(Date:2/9/2016)... 2016 The new report "Global Blood Monitoring & Cardiac Monitoring Devices ... Consulting group reveals that global market for blood monitoring & cardiac ... expected to grow to US$ 24,830.1 million by 2019 at a ... America , Europe , Asia-Pacific ... and Africa . The three major ...
(Date:2/9/2016)... , Feb. 9, 2016  Johnson & Johnson ... Capital Markets Global Healthcare Conference on Tuesday, Feb. 23, ... Dominic Caruso , Vice President, Finance & Chief ... Consumer will represent the Company in a session scheduled ... . --> www.investor.jnj.com . --> ...
(Date:2/9/2016)... , Feb. 9, 2016  Bluestar Silicones will ... product line for long-term implant applications and announce ... Design & Manufacturing (MD&M) West Conference (Booth #1759), ... --> --> Available ... Biomedical LSRs offer outstanding physical properties enabling our ...
Breaking Medicine Technology: