Abstract
Recently, endovascular treatment of coil embolisation has been widely used for obliterating cerebral aneurysms. However, the process of endothelial cell growth within aneurysms to prevent aneurysmal rupture associated with endovascular coil embolisation remains unclear. Fourteen aneurysms were produced in seven matured swine and embolised with Guglielmi Detachable coils (GDCs). The aneurysms were resected either immediately or three weeks after coil embolisation, and subjected to histological and scanning electron microscopic examinations. Blood coagulation factor XIII was administered in four animals on the day of embolisation and on the following four days. These aneurysms were also resected three weeks after the embolisation and investigated histologically. Marked fibroblast proliferation and growth of endothelial cells on the intraluminal surface of the coil were observed more often in the group administered factor XIII than in those not given factor XIII. These results suggest that administration of factor XIII may contribute to more effective aneurysm obliteration during coil embolisation.
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