Joon Kyung Song

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OBJECT To assess the safety and efficacy of aneurysm embolization performed using Guglielmi detachable coils (GDCs), the authors reviewed the results of a cohort of 150 patients with either ruptured (83 patients) or unruptured (67 patients) basilar tip aneurysms treated with these detachable platinum coil devices in the early part of the United States(More)
OBJECTIVE To report the results of the first 50 consecutive patients with vasospasm secondary to subarachnoid hemorrhage treated with balloon angioplasty after failure of medical management. METHODS Retrospective uncontrolled study of 50 consecutive patients treated with balloon angioplasty between February 1988 and July 1992. Forty-six had objective(More)
OBJECT A new embolic agent, bioabsorbable polymeric material (BPM), was incorporated into Guglielmi detachable coils (GDCs) to improve long-term anatomical results in the endovascular treatment of intracranial aneurysms. The authors investigated whether BPM-mounted GDCs (BPM/GDCs) accelerated the histopathological transformation of unorganized blood clot(More)
BACKGROUND AND PURPOSE This study evaluated the safety and efficacy of aggressive mechanical clot disruption (AMCD) in acute stroke patients with persisting middle cerebral artery (MCA) or internal carotid artery (ICA) occlusion after thrombolytic therapy. METHODS Retrospective case series were used from a prospectively collected stroke database on(More)
The authors present 3 patients who underwent neuroendovascular procedures in which DynaCT produced by a flat-panel detector facilitated management of complications. As part of a combined CT/angiography suite, DynaCT offered the major advantage of immediate detection or exclusion of intracranial complication without patient transfer. The quality of(More)
BACKGROUND AND PURPOSE We routinely perform an urgent bedside neurovascular ultrasound examination (NVUE) with carotid/vertebral duplex and transcranial Doppler (TCD) in patients with acute cerebral ischemia. We aimed to determine the yield and accuracy of NVUE to identify lesions amenable for interventional treatment (LAITs). METHODS NVUE was performed(More)
BACKGROUND AND PURPOSE The authors report their experience using Matrix coils in the treatment of cerebral aneurysms. METHODS The outcomes of 72 consecutive patients (76 aneurysms) who underwent coiling using Matrix coils at our institution were retrospectively analyzed. RESULTS Seventy-four aneurysms in 70 patients were coiled using Matrix coils(More)
Betaxolol is a beta-adrenergic blocker but its neuroprotective action is generally thought to be due to its calcium channel blocking properties. In this study, we investigated neuronal cell damage and changes in the expression of neuronal nitric oxide synthase (nNOS) immunoreactivity in the ischemic retina and its relationship to the neuroprotection of(More)
BACKGROUND AND PURPOSE Despite the continued improvements in endovascular techniques this decade, few dedicated studies addressing the feasibility of such procedures or their efficacy relative to risk have been conducted. The purpose of this study was to use current endovascular techniques to assess the feasibility, effectiveness, and safety of direct(More)
Subarachnoid hemorrhage from a ruptured aneurysm remains a devastating disease (1– 8). In as many as one third of survivors, symptomatic vasospasm poses a significant clinical problem that can result in aphasia, hemiparesis, coma, and even death (4, 6, 9). Over the past decade, progress has been made in the treatment of vasospasm through the use of(More)