Rebleeding of an angiographically healed aneurysm

Area of Science:

• Neurosurgery
• Vascular Neurology
• Diagnostic Imaging

Background:

• Cerebral aneurysms pose significant risks, including rebleeding.
• Angiography is a standard tool for assessing aneurysm status and treatment efficacy.
• Defining 'healed' status for aneurysms is critical for patient management.

Observation:

• A case of a cerebral aneurysm initially deemed 'healed' based on angiography is presented.
• The patient experienced a rebleeding event despite negative follow-up angiographic results.
• Subsequent surgical exploration confirmed the aneurysm's patency.

Findings:

• Angiographic assessment of aneurysm healing can be unreliable, potentially leading to false negatives.
• A patent aneurysmal sac can persist and pose a risk of rebleeding even after negative imaging.
• Surgical exploration is crucial for definitive assessment in select cases.

Implications:

• Clinical vigilance is paramount, even with seemingly negative angiographic follow-up for treated aneurysms.
• Reconsideration of diagnostic criteria for aneurysm healing may be warranted.
• This case highlights the importance of correlating imaging findings with clinical presentation in aneurysm management.