Clinical analysis of vertebrobasilar dissection

Area of Science:

• Neurology
• Vascular Surgery
• Neuroradiology

Background:

• The natural history and optimal management of vertebrobasilar artery dissection (VAD) remain incompletely understood.
• This study reviews clinical outcomes of VAD patients to inform management strategies.

Purpose of the Study:

• To analyze the clinical outcomes of patients diagnosed with vertebrobasilar artery dissection (VAD).
• To propose evidence-based management strategies for VAD based on patient presentation and outcomes.

Main Methods:

• Retrospective review of 35 VAD patients (1992-2004).
• Analysis of patient demographics, clinical presentation (including subarachnoid hemorrhage - SAH), angiographic findings (shape, location relative to PICA), and treatment modalities.
• Functional outcomes assessed using the modified Rankin score and analyzed against various clinical and angiographic factors.

Main Results:

• No significant difference in functional outcome based on age, gender, trauma history, or hypertension.
• Patients presenting without subarachnoid hemorrhage (SAH) had significantly better functional outcomes than those with SAH (p=0.029).
• Hunt-Hess grade showed statistical significance with clinical outcome (p=0.032); aneurysm presence correlated with rebleeding and mortality.

Conclusions:

• Vertebrobasilar artery dissection (VAD) patients with subarachnoid hemorrhage (SAH) benefit from surgical or endovascular treatment.
• Conservative management with antiplatelet or anticoagulation therapy is suitable for VAD patients without SAH.