Bidirectional Association Between Frailty and Cardiac Structure and Function: The Atherosclerosis Risk in Communities...

Area of Science:

• Gerontology
• Cardiology
• Public Health

Background:

• Frailty and heart failure are common in older adults, but their longitudinal relationship is understudied.
• Existing research has limited data on the interplay between frailty and subclinical cardiac dysfunction over time.

Purpose of the Study:

• To investigate the association between frailty and longitudinal changes in cardiac function.
• To examine how cardiac function predicts the progression of frailty status in older adults.

Main Methods:

• Utilized data from the Atherosclerosis Risk in Communities cohort, including frailty and echocardiographic assessments.
• Employed multivariable regression models to analyze associations, adjusting for demographics and comorbidities.
• Assessed changes in cardiac function over 6 years and frailty progression over 4 years.

Main Results:

• Frailty at baseline was associated with increased left atrial volume index and E/e' ratio.
• Participants progressing from robust to frail status showed greater increases in left ventricular mass index and left atrial volume index.
• In robust individuals, specific cardiac measures like left ventricular mass index and E/e' ratio predicted frailty progression.

Conclusions:

• Progression of frailty and subclinical cardiac dysfunction are interrelated in older adults without heart failure.
• Findings suggest a bidirectional link between worsening frailty and cardiac remodeling/diastolic dysfunction.
• This highlights the importance of assessing both frailty and cardiac health in geriatric populations.