Ruptured de novo intracranial aneurysms

Yoneoka, Yuichiro; Takeda, Naoto; Izumi, Akira; Ibuchi, Y.; Kumagai, Takashi; Sugai, Tsutomu; Takeda, Katsuji; Ueda, Kazuo

doi:10.1007/s00701-004-0308-2

Cited by 29 publications

(14 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…9 In our series, the earliest symptomatic recurrent aneurysm (with epileptic seizure) was found 6 years after the initial treatment, and the first de novo aneurysms (with SAH) at 11 years after SAH in concordance with reported adult series. 3,13 One pediatric series of 26 patients with angiographic follow-up reported the earliest recurrent and de novo aneurysms at a short-term interval of 5 months, 5 whereas another at 5 years. Among adult series, a short-term angiographic follow-up at 3-to 5-year intervals was recommended in patients aged <50 years with hypertension, 14 whereas another study suggested imaging for female patients at 10 years after the initial aneurysm treatment.…”

Section: When and Whom To Follow-upmentioning

confidence: 99%

De Novo and Recurrent Aneurysms in Pediatric Patients With Cerebral Aneurysms

Koroknay-Pál

Niemelä

Lehto

et al. 2013

Stroke

View full text Add to dashboard Cite

Background and Purpose-Long-term angiographic follow-up studies on pediatric aneurysm patients are scarce. Methods-We gathered long-term clinical and angiographic follow-up data on all pediatric aneurysm patients (≤18 years at diagnosis) treated at the Department of Neurosurgery, Helsinki University Central Hospital, between 1937 and 2009. Results-Fifty-nine patients with cerebral aneurysms in childhood had long-term clinical and radiological follow-up (median, 34 years; range, 4-56 years). Twenty-four patients (41%) were diagnosed with altogether 25 de novo and 11 recurrent aneurysms, with 9 (25%) of the aneurysms being symptomatic. New subarachnoid hemorrhage occurred in 7 patients; 4 of these patients died. Eight patients (33%) had multiple new aneurysms. The annual rate of hemorrhage was 0.4%, and the annual rate for the development of de novo or recurrent aneurysm was 1.9%. There were no de novo aneurysms in 7 patients with previously unruptured aneurysms. However, 1 recurrent aneurysm was diagnosed. Current and previous smoking (risk ratio, 2.44; 95% confidence interval, 1.07-5.55) was the only statistically significant risk factor for de novo and recurrent aneurysm formation in patients with previous subarachnoid hemorrhage, whereas hypertension, sex, or age at onset had no statistically significant effect. Smoking was also a statistically significant risk factor for new subarachnoid hemorrhage. Conclusions-Patients

show abstract

Section: When and Whom To Follow-upmentioning

confidence: 99%

De Novo and Recurrent Aneurysms in Pediatric Patients With Cerebral Aneurysms

Koroknay-Pál

Niemelä

Lehto

et al. 2013

Stroke

View full text Add to dashboard Cite

show abstract

“…Although aneurysm growth has been suggested to be erratic, 12 existing models of aneurysm screening or treatment generally incorporate a constant time-independent growth rate and risk of rupture. Aneurysms that grow fast in a short period of time [14][15][16]30,31 are likely to have high risks of rupture for short periods of time. 11 Variable growth rates with corresponding time-variable risks of rupture will change predictions of the SAH risk over different time intervals.…”

mentioning

confidence: 99%

Growth rates of intracranial aneurysms: exploring constancy

Koffijberg

Buskens

Algra

et al. 2008

JNS

View full text Add to dashboard Cite

R esearch on the development of intracranial aneurysms has been performed in numerous fields such as hemodynamics, 18 biomechanics, 4 histology, 6 and computational fluid dynamics. 21 Although these studies have provided new information regarding factors involved in aneurysm development, the results cannot be directly related to the growth rates of aneurysms. Given that an aneurysm's size is a main determinant in its risk of rupture, 26 lesion growth rates are a key factor in the relation among aneurysm prevalence, the risk of aneurysm rupture, and the observed incidence of SAH. Although aneurysm growth has been suggested to be erratic, 12 existing models of aneurysm screening or treatment generally incorporate a constant time-independent growth rate and risk of rupture. Aneurysms that grow fast in a short period of time [14][15][16]30,31 are likely to have high risks of rupture for short periods of time.11 Variable growth rates with corresponding time-variable risks of rupture will change predictions of the SAH risk over different time intervals. Evidence regarding the actual growth process may support or challenge current assumptions and perhaps evoke new screening and/or treatment strategies for unruptured aneurysms. 24,33Limited empirical data exist on the change in, or the consistency of, aneurysm growth rates over time. Extensive data collection on growth rates is not feasible, because it would require frequent screening-for example, with MR angiography-of large groups of healthy individuals and persons with unruptured aneurysms. Thus, insight into aneurysm growth rates can be attained only by modeling the effects of different growth rates on aneurysms sizes and SAH incidence and comparing these results with the observed incidence of SAH in an actual population. We constructed a model suitable for the simulation of individual patient histories. Drawing from a parametric distribution, aneurysm growth rates were assigned to individuals. As aneurysm formation and Object. The annual rate of rupture of intracranial aneurysms is often assumed to be constant, but it is unknown whether this assumption is true. Recent case reports have suggested that aneurysms grow fast in a short period of time. The authors of the present report investigated the plausibility of a constant growth rate for intracranial aneurysms.Methods. Assuming a constant aneurysm growth rate within an individual and varying rates between individuals, a hypothetical cohort was simulated. Individuals with high growth rates will display aneurysm formation and rupture at a young age; such persons disappear early from the hypothetical cohort. As a result the mean lesion growth rate varies over time. In hypothetical cohorts with different initial mean growth rates, the authors calculated age-specific incidence rates (per 100,000 person-years) of subarachnoid hemorrhage and compared these rates with populationbased data on the incidence of subarachnoid hemorrhage (per 100,000 person-years).Results. A hypothetical cohort with a mean initial growth rate o...

show abstract

“…Although the postoperative course was uneventful, de novo aneurysm could be formed due to the hemodynamic change after successful treatment. 9) As a result, she will be regularly followed up at the outpatient clinic.…”

Section: Discussionmentioning

confidence: 99%

Hyperform Remodeling Balloon for the Balloon Occlusion Test of Persistent Primitive Trigeminal Artery Aneurysm-Case Report-

Onizuka

Kaneda

Tsutsumi

et al. 2006

Neurol. Med. Chir.(Tokyo)

View full text Add to dashboard Cite

A 17-year-old woman presented with a rare aneurysm at the junction of the persistent primitive trigeminal artery (PPTA) and the internal carotid artery (ICA) manifesting as left abducens nerve paresis. The aneurysm and the ICA were both successfully occluded with coils. The balloon occlusion test used the HyperForm balloon microcatheter to seal the PPTA and ICA, which is very important to determine the optimal treatment strategy for a PPTA aneurysm.

show abstract

Ruptured de novo intracranial aneurysms

Cited by 29 publications

References 19 publications

De Novo and Recurrent Aneurysms in Pediatric Patients With Cerebral Aneurysms

De Novo and Recurrent Aneurysms in Pediatric Patients With Cerebral Aneurysms

Growth rates of intracranial aneurysms: exploring constancy

Hyperform Remodeling Balloon for the Balloon Occlusion Test of Persistent Primitive Trigeminal Artery Aneurysm-Case Report-

Contact Info

Product

Resources

About