10-year trends in heart failure

February 25, 2008

DURHAM, N.C. - Conventional wisdom holds that as the U.S. population ages, the incidence of heart failure will continue to rise. A new study from Duke University Medical Center challenges part of that assumption, however, finding that heart failure is actually declining among the very elderly. Yet the number of heart failure cases overall continues to rise.

"Heart failure is largely a disease of aging, so we were surprised by the findings," says Dr. Lesley Curtis, a health services researcher at Duke and lead author of the study appearing in the February 25 issue of the Archives of Internal Medicine.

Carefully documenting the incidence of a disease - the rate at which it occurs - and the prevalence - how many people have it at any one time - is critically important, because projections have direct bearing upon planning and resources needed for future health care.

Curtis and her colleagues examined data from a five percent sample of Medicare beneficiaries' claims between 1994 and 2003 and found that during that period, 622,789 patients were diagnosed with heart failure.

While the incidence of heart failure fell most sharply among those aged 80 to 84 years old, from 57.5 to 48.4 per 1000 person years, it also rose from 17.5 cases to 19.3 cases per 1000 person-years among those aged 65 to 69 years old.

The study also found that the total number of Americans living with heart failure steadily increased over the ten-year study period, from about 140,000 to 200,000, with more men living with the disease than women.

"From all indications, heart failure will continue to be a major public health burden, consuming billions of dollars each year," says Curtis. Nearly 5 million people in the U.S. suffer from heart failure, and even though mortality from the disease has fallen slightly, it remains a very serious problem. Nearly a third of those diagnosed with heart failure will die within one year, and "that figure hasn't budged over the last decade," according to Curtis, who is also a member of the Duke Clinical Research Institute.
-end-
The study was funded by grants from the National Institute on Aging, the National Heart, Lung and Blood Institute and the Agency for Healthcare Research and Quality.

Duke researchers contributing to the study include Drs. David Whellan, Adrian Hernandez and Kevin Schulman, from the Duke Clinical Research Center and Bradley Hammill, Kevin Anstrom and Alisa Shea, from the Center for Clinical and Genetic Economics.

Duke University Medical Center

Related Heart Failure Articles from Brightsurf:

Top Science Tip Sheet on heart failure, heart muscle cells, heart attack and atrial fibrillation results
Newly discovered pathway may have potential for treating heart failure - New research model helps predict heart muscle cells' impact on heart function after injury - New mass spectrometry approach generates libraries of glycans in human heart tissue - Understanding heart damage after heart attack and treatment may provide clues for prevention - Understanding atrial fibrillation's effects on heart cells may help find treatments - New research may lead to therapy for heart failure caused by ICI cancer medication

Machining the heart: New predictor for helping to beat chronic heart failure
Researchers from Kanazawa University have used machine learning to predict which classes of chronic heart failure patients are most likely to experience heart failure death, and which are most likely to develop an arrhythmic death or sudden cardiac death.

Heart attacks, heart failure, stroke: COVID-19's dangerous cardiovascular complications
A new guide from emergency medicine doctors details the potentially deadly cardiovascular complications COVID-19 can cause.

Autoimmunity-associated heart dilation tied to heart-failure risk in type 1 diabetes
In people with type 1 diabetes without known cardiovascular disease, the presence of autoantibodies against heart muscle proteins was associated with cardiac magnetic resonance (CMR) imaging evidence of increased volume of the left ventricle (the heart's main pumping chamber), increased muscle mass, and reduced pumping function (ejection fraction), features that are associated with higher risk of failure in the general population

Transcendental Meditation prevents abnormal enlargement of the heart, reduces chronic heart failure
A randomized controlled study recently published in the Hypertension issue of Ethnicity & Disease found the Transcendental Meditation (TM) technique helps prevent abnormal enlargement of the heart compared to health education (HE) controls.

Beta blocker use identified as hospitalization risk factor in 'stiff heart' heart failure
A new study links the use of beta-blockers to heart failure hospitalizations among those with the common 'stiff heart' heart failure subtype.

Type 2 diabetes may affect heart structure and increase complications and death among heart failure patients of Asian ethnicity
The combination of heart failure and Type 2 diabetes can lead to structural changes in the heart, poorer quality of life and increased risk of death, according to a multi-country study in Asia.

Preventive drug therapy may increase right-sided heart failure risk in patients who receive heart devices
Patients treated preemptively with drugs to reduce the risk of right-sided heart failure after heart device implantation may experience the opposite effect and develop heart failure and post-operative bleeding more often than patients not receiving the drugs.

How the enzyme lipoxygenase drives heart failure after heart attacks
Heart failure after a heart attack is a global epidemic leading to heart failure pathology.

Novel heart pump shows superior outcomes in advanced heart failure
Severely ill patients with advanced heart failure who received a novel heart pump -- the HeartMate 3 left ventricular assist device (LVAD) -- suffered significantly fewer strokes, pump-related blood clots and bleeding episodes after two years, compared with similar patients who received an older, more established pump, according to research presented at the American College of Cardiology's 68th Annual Scientific Session.

Read More: Heart Failure News and Heart Failure Current Events
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.