Je Young Yeon

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The aim of this study is to determine surgical outcomes and factors affecting seizure outcomes in patients who harbor supratentorial cavernous angiomas presenting with seizures. Sixty patients were classified into the intractable epilepsy group (n=22) and the sporadic seizure group (n=38) and then managed differently in accordance with our guidelines.(More)
The aim of this study was to examine the clinical characteristics and angiographic findings of spontaneous idiopathic subarachnoid hemorrhage (ISAH) and to compare these with those of aneurysmal SAH (ASAH). We retrospectively reviewed the clinical characteristics and venograms of 118 consecutive patients with ISAH during the past 10years for possible(More)
The primary objective of this study was to evaluate the safety of early warfarin resumption following burr hole drainage for warfarin-associated subdural hemorrhage (SDH). This prospective, single-arm, single-center trial was conducted from February 2008 to April 2010. Inclusion criteria were premorbid warfarin therapy, subacute or chronic SDH requiring(More)
Major artery aneurysms may be found incidentally while evaluating moyamoya disease (MMD). The purpose of this study was to delineate the prevalence and characteristics of these uncommon aneurysms with a brief mention of their management and outcomes. We conducted a retrospective review of 249 adult patients who were diagnosed with non-hemorrhagic MMD.(More)
BACKGROUND Both Moyamoya disease (MMD) and intracranial atherosclerotic stenosis (ICAS) are more prevalent in Asians than in Westerners. We hypothesized that a substantial proportion of patients with adult-onset MMD were misclassified as having ICAS, which may in part explain the high prevalence of intracranial atherosclerotic stroke in Asians. METHOD We(More)
The aim of this study was to evaluate clinico-radiological outcomes following gamma knife radiosurgery (GKS) for pediatric arteriovenous malformations (AVMs). The present series included 39 children (3–17 years of age) who underwent GKS for cerebral AVMs between January 2002 and February 2008. Twenty-five patients presented with hemorrhages. The median AVM(More)
BACKGROUND Both intracranial atherosclerotic stenosis (ICAS) and moyamoya disease (MMD) are prevalent in Asians. We hypothesized that the Ring Finger protein 213 gene polymorphism (RNF213), a susceptibility locus for MMD in East Asians, is also a susceptibility gene for ICAS in patients whose diagnosis had been confirmed by conventional angiography (absence(More)
OBJECTIVE To analyze the outcome of gamma knife radiosurgery (GKS) using low marginal dose for the symptomatic brain stem cavernous angioma (BSCA). METHODS 39 patients (16 males, 23 females) were treated with GKS for BSCA from January 1997 to September 2012. Clinical data were analyzed retrospectively. The mean age was 41.5 years. All patients had a(More)
BACKGROUND AND PURPOSE To evaluate the factors predictive of contralateral progression in children and adolescents with unilateral moyamoya disease (MMD), the authors retrospectively analyzed clinicoradiological findings. METHODS The records of 394 consecutive patients with MMD aged 0 to 17 years were reviewed. Unilateral MMD was defined based on the(More)
The purpose of this study was to investigate the efficacy and safety of transventricular neuroendoscopic biopsies in pediatric patients with suprasellar tumors. Twenty-three pediatric patients (12 males and 11 females) with suprasellar tumors underwent transventricular neuroendoscopic biopsy at our institute by a single surgeon from 2000 to 2011.(More)