Development of New Aneurysm and Enlargement of Small Aneurysm

Nukui, Hideaki; Nagaya, Takao; Miyagi, Osamu; Tamada, Junpei; Kaneko, Masami; Sasaki, Hideo; Mitsuka, Shigeru; Kawafuchi, Jun‐ichi; Kohno, Norio; Kanoh, T

doi:10.2176/nmc.22.437

Cited by 19 publications

(5 citation statements)

References 10 publications

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“…12 Multiple case reports and small series have been documented since. 2,6,9,10,14,17,18,[20][21][22][23][25][26][27]29,[31][32][33] The findings support the concept that the process of aneurysm formation is multifactorial and related to congenital, environmental, and hemodynamic factors. 4,5,8,35 There are consistently reported risk factors for the development of de novo aneurysms.…”

Section: Discussionsupporting

confidence: 59%

Risk of hemorrhage from de novo cerebral aneurysms

Kemp

Fulkerson

Payner

et al. 2013

JNS

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While rare, de novo aneurysms may have a risk for SAH that is comparatively higher than the risk associated with similarly sized, small, initially discovered unruptured saccular aneurysms. The authors therefore recommend long-term follow-up for all patients with aneurysms, and they consider a more aggressive treatment strategy for de novo aneurysms than for incidentally discovered initial aneurysms.

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Section: Discussionsupporting

confidence: 59%

Risk of hemorrhage from de novo cerebral aneurysms

Kemp

Fulkerson

Payner

et al. 2013

JNS

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“…12) De novo aneurysms commonly occur in the 3rd and 4th decades of life at an interval of 3-20 years. 13) In our case, the de novo aneurysms developed at a short interval of 30 days. We have treated 2000 patients with aneurysms during the last 20 years and experienced three cases of de novo aneurysms.…”

Section: Discussionmentioning

confidence: 52%

“…Thereafter, at least nine reports of de novo aneurysms have been published (Table 1). [3][4][5][6][7]10,11,13,18,19) In our case, the two A 2 portion aneurysms developed one month after the clipping of a left anterior choroidal artery aneurysm. Previous cases appeared on the opposite internal carotid artery after carotid ligation for aneurysms of the internal carotid or posterior communicating artery 4,16) with two exceptions.…”

Section: Discussionmentioning

confidence: 97%

“…De novo aneurysm considered to be a special case of multiple aneurysms in which the lesions appear in series rather than in parallel. This de novo aneurysm develops at an interval of 3-20 years 13) and is not detected by the previous angiography. 12 ) The incidence and behavior of de novo aneurysms provide some insight into the poorly understood natural history of these lesions.…”

Section: Introductionmentioning

confidence: 86%

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Early Development and Rupture of De Novo Aneurysm. Case Report.

Sim

Kim

2002

Neurol. Med. Chir.(Tokyo)

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A 38-year-old non-smoker man presented with a ruptured aneurysm one month after clipping of a previous aneurysm. He was first admitted because of sudden onset of severe headache. Brain computed tomography showed subarachnoid hemorrhage. Angiography showed an aneurysm of the left anterior choroidal artery which was surgically clipped. Two weeks later, he was discharged without neurological deficits. One month after the initial hemorrhage, he was readmitted to the emergency room with stuporous mentality. Repeat angiography showed two aneurysms of the A 2 portion of the left anterior cerebral artery which were not demonstrated by the initial angiography. The diagnosis was de novo aneurysms. The larger aneurysm was clipped and the other was coated. De novo aneurysm should be suspected if a patient with a previously clipped aneurysm complains of typical headache or any suggestive symptoms or signs of cranial nerve dysfunction, especially if known risk factors are present.

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“…В ряде публикаций [6,9,11,14,16,19,23] в каче-стве одного из факторов, способствующих новооб-разованию аневризм, указывается проксимальное клипирование магистральных артерий головного мозга. В нашей серии у одной пациентки после ок-клюзии ВСА через 1 год образовалась новая анев-ризма в области передней соединительной артерии.…”

Section: приводим наблюдениеunclassified