[Cerebral amyloid angiopathy and atrial fibrillation: a dangerous union]

Area of Science:

• Neurology
• Vascular Biology
• Geriatrics

Background:

• Intracranial hemorrhage (ICH) is a significant complication of oral anticoagulant therapy.
• Cerebral amyloid angiopathy (CAA) involves beta-amyloid deposition in cerebral vessels, increasing rupture risk.
• CAA manifests as ICH, cognitive decline, and transient focal neurological episodes (TFNE).

Purpose of the Study:

• To highlight the diagnostic challenges and risks associated with TFNE in CAA patients.
• To emphasize the importance of accurate diagnosis for preventing anticoagulant-related bleeding.
• To discuss emerging non-pharmacological treatments for high-risk patients.

Main Methods:

• Literature review on CAA, ICH, and TFNE.
• Analysis of clinical implications of misdiagnosing TFNE as transient ischemic attack (TIA).
• Review of current and emerging treatment strategies for anticoagulation in high-risk patients.

Main Results:

• Misdiagnosis of TFNE as TIA can lead to initiation of anticoagulant therapy, significantly increasing ICH risk.
• Accurate identification of TFNE in CAA is critical to avoid iatrogenic bleeding.
• Percutaneous left atrial appendage occlusion is an emerging alternative to anticoagulation.

Conclusions:

• Enhanced knowledge of CAA is essential for preventing bleeding complications.
• Timely and accurate diagnosis of TFNE is paramount in managing patients at risk of ICH.
• Non-pharmacological options offer safer alternatives for anticoagulated patients with high bleeding risk.