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:6/25/2016)... ... June 25, 2016 , ... First Choice Emergency Room , the largest ... as the Medical Director of its new Mesquite-Samuell Farm facility. , “We are ... Mesquite location,” said Dr. James M. Muzzarelli, Executive Medical Director of First Choice Emergency ...
(Date:6/25/2016)... ... June 25, 2016 , ... Conventional wisdom preaches the ... In terms of the latter, setting the bar too high can result in disappointment, ... just slow progress toward their goal. , Research from PsychTests.com reveals ...
(Date:6/24/2016)... , ... June 24, 2016 , ... Marcy was in a crisis. Her son James, ... out at his family verbally and physically. , “When something upset him, he couldn’t control ... use it. He would throw rocks at my other children and say he was going ...
(Date:6/24/2016)... (PRWEB) , ... June 24, 2016 , ... Comfort Keepers® ... American Cancer Society and the Road To Recovery® program to drive cancer patients to ... and other adults to ensure the highest quality of life and ongoing independence. ...
(Date:6/24/2016)... ... June 24, 2016 , ... The Haute ... Dr. Barry M. Weintraub as a prominent plastic surgeon and the network’s newest ... world, and the most handsome men, look naturally attractive. Plastic surgery should be ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... SAN CLEMENTE, Calif. , June 24, 2016  American ... function testing company, is now able to perform sophisticated lung assessments ... ndd Medical Technologies , Inc. Patients are no ...  Thanks to ndd,s EasyOne PRO ® , ARL patients like Jeanne ... needed testing done in the comfort of her own home. ...
(Date:6/24/2016)... , June 24, 2016 VolitionRx ... of Dr. Edward Futcher to the ... effective June 23, 2016.Dr. Futcher was also appointed ... Governance Committees.  As a non-executive member of the ... and strategic counsel to VolitionRx in connection with ...
(Date:6/23/2016)... BEVERLY HILLS, Calif. , June 23, 2016 ... faced the many challenges of the current process. Many of ... option because of the technical difficulties and high laboratory costs ... would have to offer it at such a high cost ... to afford it. Dr. Parsa Zadeh , ...
Breaking Medicine Technology: