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Updated: Jun 16, 2026

Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions
Published on: April 23, 2021
Sinus Pause and Cognitive Dysfunction: Diagnostic and Therapeutic Implications
Mohd Aizuddin Mohd Zulastri1, Muhammad Azlan Aseri1, Syed Saleh Syed Sheikh2
1Department of Cardiology University Malaya Medical Centre Kuala Lumpur Malaysia.
Bradyarrhythmias can cause temporary brain underperfusion, leading to unexplained cognitive decline in older adults. Identifying these heart rhythm issues through monitoring may reveal treatable causes for transient neurological symptoms.
Area of Science:
- Cardiology
- Neurology
- Geriatrics
Background:
- Elderly patients often present with unexplained episodic cognitive decline.
- Transient or fluctuating neurological symptoms can be challenging to diagnose.
- Cerebral hypoperfusion is a potential underlying mechanism for cognitive impairment.
Purpose of the Study:
- To highlight the importance of considering bradyarrhythmia-related cerebral hypoperfusion in elderly patients with unexplained cognitive decline.
- To emphasize the diagnostic value of prolonged rhythm monitoring in identifying treatable arrhythmic causes.
Main Methods:
- Retrospective analysis of clinical presentations.
- Review of diagnostic workups for episodic cognitive decline in the elderly.
- Correlation of cardiac rhythm monitoring findings with neurological symptoms.
Main Results:
- Bradyarrhythmia-related cerebral hypoperfusion is a significant, often overlooked, cause of transient cognitive decline in the elderly.
- Fluctuating or episodic symptoms are key indicators for considering arrhythmic causes.
- Prolonged rhythm monitoring successfully identified treatable bradyarrhythmias in a subset of patients.
Conclusions:
- Bradyarrhythmia should be a key consideration in the differential diagnosis of unexplained episodic cognitive decline in older individuals.
- Prolonged cardiac rhythm monitoring is a valuable tool for uncovering treatable arrhythmic etiologies.
- Early identification and management of bradyarrhythmias can potentially improve cognitive outcomes in the elderly.
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