Heart failure linked to cognitive impairment

Feb 05, 2009

Nearly half of patients with heart failure (HF) have problems with memory and other aspects of cognitive functioning, reports a new study published by Elsevier, in the February issue of Journal of Cardiac Failure .

Memory problems and other cognitive deficits may be an important factor to consider in planning medical care for patients with HF, according to the new study, led by Mary Jane Sauvé, D.N.Sc., R.N., of the University of California, Davis.

The researchers administered tests of cognitive (intellectual) function to 50 patients with HF and 50 people without HF, matched for age and estimated intelligence. Most of the patients had mild to moderate HF. Overall, patients with HF scored lower than controls on 14 of 19 cognitive tests. Forty-six percent of the HF patients were rated as having mild to severe cognitive impairment, compared to a 16 percent rate of mild impairment in controls. Memory problems, especially short-term memory, were the most common type of cognitive deficit.

With adjustment for other factors, the risk of cognitive impairment was more than four times higher in the HF group. The rate, types, and severity of cognitive impairment in this group of patients living with HF were similar to those seen in patients with end-stage HF awaiting heart transplantation.

Changes in cognitive function have long been recognized in patients with heart disease. Although past reports have noticed an increased rate of cognitive impairment among people with HF, this has been assumed to reflect the age-related risk of cognitive decline.

These findings may have important implications for the care of patients with HF, Dr. Sauvé and colleagues believe. For example, "Care instructions and medication or dietary changes need to be written and given verbally because of patient difficulties with information requiring attention, learning, and memory functions."

"This is a very important article dealing with a neglected area of research," commented Barry M. Massie, M.D., Editor-in-Chief of the Journal of Cardiac Failure. "The authors have performed a well-designed study assessing heart failure patients for cognitive impairment, which was significant in a substantial proportion of patients. Furthermore, it was closely related to the severity of symptoms or left ventricular dysfunction. Clinicians should be aware of this problem, as it has the potential to interfere with optimal patient management."

Journal website: www.elsevier.com/locate/cardfail

Source: Elsevier

Explore further: Sierra Leone faces criticism over Ebola shutdown

add to favorites email to friend print save as pdf

Related Stories

Cognitive Problems Can Worsen the Effects of Heart Failure

May 07, 2010

(PhysOrg.com) -- Surviving heart failure calls for making lifestyle changes, taking medications and following a doctor's orders. Some of the nation's 5 million heart failure patients have trouble adhering to these changes ...

Recommended for you

Overwhelmed west Africa ramps up Ebola response

8 hours ago

West Africa intensified its response to the deadly Ebola epidemic on Sunday, with Sierra Leone uncovering scores of dead bodies during a 72-hour shutdown and Liberia announcing hundreds of new hospital beds.

Sierra Leone reaches final day of Ebola lockdown

12 hours ago

Frustrated residents complained of food shortages in some neighborhoods of Sierra Leone's capital on Sunday as the country reached the third and final day of a sweeping, unprecedented lockdown designed to ...

Sierra Leone faces criticism over Ebola shutdown

Sep 20, 2014

Sierra Leone began the second day of a 72-hour nationwide shutdown aimed at containing the spread of the deadly Ebola virus on Saturday amid criticism that the action was a poorly planned publicity stunt.

Presence of peers ups health workers' hand hygiene

Sep 19, 2014

(HealthDay)—The presence of other health care workers improves hand hygiene adherence, according to a study published in the October issue of Infection Control and Hospital Epidemiology.

User comments : 0