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Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
Published on: July 20, 2022
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Left atrial expansion index is associated with recurrent stroke
1Division of Cardiology, Department of Internal Medicine, E-Da Hospital, I-Shou University; Kaohsiung-Taiwan;School of Medicine, National Yang-Ming University; Taipei-Taiwan.
Anatolian Journal of Cardiology
|July 8, 2021
Summary
The left atrial (LA) expansion index can predict recurrent strokes. A lower LA expansion index (<62.5%) indicates a higher risk of stroke recurrence, aiding in patient risk stratification.
Area of Science:
- Cardiology
- Neurology
- Medical Imaging
Background:
- Left atrial (LA) expansion index is linked to cardiovascular health.
- Its role in predicting recurrent strokes remains unclear.
Purpose of the Study:
- To investigate the association between the LA expansion index and recurrent ischemic stroke.
- To determine if LA expansion index can serve as a predictor for stroke recurrence.
Main Methods:
- 176 patients with first ischemic stroke were enrolled.
- LA expansion index was calculated using maximal and minimal LA volumes.
- Patients were followed for a mean of 4.9 years for recurrent ischemic stroke.
Main Results:
- A lower LA expansion index (<62.5%) was associated with a higher risk of recurrent stroke.
- LA expansion index demonstrated superior predictive ability compared to LA volume and E/e'.
- LA expansion index was an independent predictor of recurrent stroke (HR=0.873, p=0.009).
Conclusions:
- The LA expansion index is a valuable tool for predicting recurrent stroke.
- Lower LA expansion index values identify patients at increased risk for future strokes.
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