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Embolization of aneurysms with a liquid material. An experimental study
T Koizumi1, T Kawano, K Kazekawa
1Department of Neurosurgery, Fukuoka Tokushukai Medical Center; Fukuoka, Japan.
Summary
A novel liquid embolic material, a poly (HEMA-co-MMA) mixture, effectively occluded experimental cerebral aneurysms without distal migration. This finding suggests its potential for safe and effective aneurysm embolization.
Area of Science:
- Biomaterials Science
- Interventional Radiology
- Vascular Surgery
Background:
- Cerebral aneurysms pose significant risks, necessitating effective treatment options.
- Liquid embolic agents are crucial for minimally invasive aneurysm repair.
Purpose of the Study:
- To evaluate the efficacy and safety of a novel liquid embolic material for experimental cerebral aneurysm embolization.
Main Methods:
- A poly (HEMA-co-MMA) based liquid embolic mixture was developed and tested.
- Experimental aneurysm models (5 mm diameter) in pulsatile saline flow were used.
- The highest viscosity solution was employed to prevent distal migration.
Main Results:
- The liquid embolic material completely obliterated aneurysm models.
- No distal migration of the embolic mixture was observed.
- Successful treatment of over 30 arteriovenous malformation (AVM) cases was reported.
Conclusions:
- The evaluated liquid embolic material demonstrates potential for safe and effective embolization of cerebral aneurysms.
- The material's properties, particularly high viscosity, are critical for preventing migration.
