The Proportion of Small Aneurysms in the Ruptured Cerebral Aneurysmal Cases : Is the Small Aneurysm Safe From Rupture? / 대한뇌혈관외과학회지

ABSTRACT

OBJECTIVE: This study investigated the proportion of small cerebral aneurysm ( 10mm). The clinical and radiological findings of the ruptured aneurysms were also evaluated. RESULTS: The mean age of the 244 enrolled patients was 54.6 years. The mean size of the rupture and the unruptured aneurysms was 6.8 mm. The proportions of aneurysm sizes were 7.8% (<3 mm), 30.7% (3~5 mm), 25.4% (5~7 mm), 19.3% (7~10 mm) and 16.8% (<10 mm). CONCLUSION: The proportion of small ruptured aneurysms (<5 mm) was appreciable; the proportion was not small just to observe. The proportion of very small ruptured aneurysms (3~5 mm) was significant in patients who required surgery or endovascular coiling. Although tiny aneurysms (<3 mm) may have a very low risk of rupture, they should be closely followed-up to preclude such a catastrophe.