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Prognostic Importance of Hippocampal Atrophy in Patients With Chronic Heart Failure

Takeshi Niizeki1, Tadateru Iwayama1, Eiichiro Ikeno1

  • 1Department of Cardiology, Okitama Public General Hospital, Yamagata, Japan.

The American Journal of Cardiology
|January 26, 2019
PubMed

Insights

Screening for mild cognitive impairment (MCI) is crucial in chronic heart failure (CHF) patients. Hippocampal atrophy detected via MRI predicts cardiac events, indicating poor prognosis and aiding risk stratification.

Area of Science:

  • Cardiology
  • Neurology
  • Radiology

Background:

  • Mild cognitive impairment (MCI) negatively impacts self-care in chronic heart failure (CHF) patients, increasing mortality risk.
  • Early diagnosis of MCI is essential for managing CHF patients.
  • Hippocampal atrophy, detectable by MRI, is an effective diagnostic marker for early MCI.

Purpose of the Study:

  • To determine the prevalence of hippocampal atrophy in CHF patients.
  • To evaluate the prognostic significance of hippocampal atrophy in CHF patients.
  • To assess the utility of MRI-detected hippocampal atrophy for risk stratification in CHF.

Main Methods:

  • Magnetic resonance imaging (MRI) was used to assess hippocampal atrophy in 491 CHF patients.
  • Cox proportional hazards regression and Kaplan-Meier analyses were employed.
  • Cardiac events were monitored during the follow-up period.

Main Results:

  • 170 out of 491 CHF patients showed hippocampal atrophy.
  • Patients with hippocampal atrophy were older and had higher rates of renal dysfunction and cardiac events.
  • Hippocampal atrophy was a significant independent predictor of cardiac events (180 events total).

Conclusions:

  • Hippocampal atrophy is a significant predictor of poor prognosis in CHF patients.
  • MRI-based assessment of hippocampal atrophy can aid in the risk stratification of CHF patients.
  • Identifying hippocampal atrophy improves patient management and outcomes in chronic heart failure.

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