• Journal of Korean Neurosurgical Society
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• 제50권4호
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• pp.322-326
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• 2011

Objective : Stenting of symptomatic intracranial stenosis has recently become an alternative treatment modality. However, urgent intracranial stenting in patients with intracranial stenosis following a transient ischemic attack (TIA) or minor stroke is open to dispute. We sought to assess the feasibility, safety, and effectiveness of urgent intracranial stenting for severe stenosis (>70%) in TIA or minor stroke patients. Methods : Between June 2009 and October 2010, stent-assisted angioplasty by using a balloon-expandable coronary stent for intracranial severe stenosis (>70%) was performed in 7 patients after TIA and 5 patients after minor stroke (14 stenotic lesions). Technical success rates, complications, angiographic findings, and clinical outcomes were retrospectively analyzed. Results : Stenting was successful in all 12 patients. The mean time from symptom onset to stenting was 2.1 days (1-8 days). Post-procedural angiography showed restoration to a normal luminal diameter in all patients. In-stent thrombosis occurred in one patient (n=1, 8.3%), and was lysed with abciximab. No device-related complications, such as perforations or dissections at the target arteries or intracranial hemorrhaging, occurred in any patient. The mortality rate was 0%. No patient had an ischemic event over the mean follow-up period of 12.5 months (range, 7-21 months), and follow-up angiography (n=7) revealed no significant in-stent restenosis (>50%). Conclusion : Urgent recanalization with stenting is feasible, safe, and effective in patients with TIA or acute minor stroke with intracranial stenosis of ${\geq}$ 70%.

• Journal of Korean Neurosurgical Society
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• 제38권3호
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• pp.190-195
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• 2005

Objective : This study is performed to evaluate the procedural complications, aneurysm occlusion rate, and mid-term outcome of endovascular treatments in intracranial aneurysms. Methods : We retrospectively investigated 135 patients with 161 cerebral aneurysms who were treated by endovascular means at our institute from March 1999 to December 2004. We statistically analyzed overall outcome, occlusion rate, and occurrence of complications according to the location, size, rupture history, and neck size of aneurysms. Results : Forty-nine patients [36.3%] had experienced acute intracranial or extracranial complications related to the procedure. Among these, there were 13cases of perforation of the aneurysm, 9 of local vasospasm, 8 of thromboembolism, 4 of coil migration, 3 of occlusion of parent vessels due to coil protrusion, and 1 of seizure. Extracranial complications occurred in 14cases including alopecia [9cases], femoral artery thrombosis [2cases], acute renal failure [2cases], and hypovolemic shock [1case]. One hundred twenty-six aneurysms [78.3%] had complete occlusion of the aneurysm and 35 [21.7%] incomplete occlusion at 6months angiographic follow-up. Postembolization clinical follow-up ranged from 1 to 60months [mean, 14.2months]. Seven of the 161 aneurysms underwent additional embolization and 2 incomplete embolized aneurysms required subsequent surgery. Conclusion : The procedural complications and incomplete occlusion rates are substantial. Therefore, endovascular treatment needs close and continued neurosurgical and neuroradiological concerns for the therapy of intracranial aneurysms.

• Annals of Clinical Neurophysiology
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• 제1권1호
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• pp.60-63
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• 1999

Transcranial Doppler(TCD) is an important diagnostic tool for evaluating the patients with stroke. It has some advantages and unique role when compared with other neuroimaging modalities. Recent development of transcranial color-coded Doppler(TCD) improves the limitation and pitfalls of TCD. The current indications of TCD are as follows: 1. Screening and evaluation of the intracranial major vessels 2. early detection and follow-up of vasospasm due to SAH 3. emboli detection (high-imtensity transient signals, HITs) 4. dignosis and follow-up of subclavian steal 5. evaluation of intracranial collaterals when the extracranial ICA has severe stenosis or occlusion 6. evaluation of cerebral perfusion pressure (intracranial pressure) 7. evaluation of arteriovenous malformation 8. diagnosis and follow-up of arterial dissenction 9. diagnosis and follow-up of venous sinus thrombosis (experimental).

• Journal of Trauma and Injury
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• 제25권4호
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• pp.109-114
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• 2012

Purpose: Deep vein thrombosis and pulmonary thromboembolism are major causes of death after severe multiple trauma. Although various means of prevention have been presented and utilized, still, there are no standard guidelines for anticoagulation of multiple trauma because of some contraindications. Methods: A retrospective study of adult major trauma patients whose injury severity scores (ISSs) were over 16 and who had visited one university hospital in Daegu city was performed. We compared some features of patients diagnosed DVT or PTE with those of patients without DVT by computed tomography or ultra sonography. Those features included accompanying various kinds of intracranial hemorrhages, possibility of ambulation, emergent operation, early transfusion, and suspicious symptoms. Results: The mean age of the 58 subjects included in this study was $50.9{\pm}17.2years$, the mean ISS was $22.7{\pm}6.0$, and the mean hospital stay was $55.2{\pm}37.9days$. Ten(17.2%) patients had emergent surgery, and 44(75.9%) experienced delayed surgery. Early transfusion was needed in 34(58.6%) patients. Among the 18 patients diagnosed with DVT, accompanying intracranial hemorrhages were noted in 8(44.4%) patients; one of the 8 also had PTE. Among the same 18 patients, early transfusions were required in 11(61.1%) patients; one of the 11 also had PTE. Conclusion: The risk of DVT is increased in cases of severe multiple trauma, and many difficulties in applying anticoagulants are experienced. Though we need additional studies to decide proper prophylaxis for DVT and PTE, if the patient's general condition permits, a screening test for DVT as soon as possible could be an effective method to reduce the possibility of a bad outcome.

• Journal of Korean Neurosurgical Society
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• 제52권3호
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• pp.243-245
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• 2012

It is well known that spontaneous thrombosis in giant cerebral aneurysm is common. However, spontaneous obliteration of a non-giant and unruptured cerebral aneurysm has been reported to be rare and its pathogenic mechanism is not clear. We describe a case with rare vascular phenomenon and review the relevant literatures.

• Pediatric Infection and Vaccine
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• 제26권3호
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• pp.188-193
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• 2019

b형 헤모필루스 인플루엔자균 예방접종이 시행된 이후 b형 헤모필루스 인플루엔자균에 의한 감염률은 급격히 감소하였으나, non-b형 헤모필루스 인플루엔자균에 의한 감염의 비율이 증가하는 추세이다. 대뇌 정맥동 혈전증은 드물지만 세균성 수막염의 합병증 중 하나로 발생할 수 있다. 대뇌 정맥동 혈전증이 동반된 f형 헤모필루스 인플루엔자균에 의한 뇌수막염 환자를 진단 및 치료하였기에 보고하는 바이다.

• 대한한방내과학회지
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• 제21권5호
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• pp.883-887
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• 2000

A clinical study was carried out 1 case of ischemic cerebrovascular accident which occurred at puerperium in a 27 year-old woman followed by vaginal delivery The results were as follows: 1. In the clinical view, it was thought that the cause of this case is intracranial venous thrombus, because the symptom-headache, foaming at the mouse, acromyotonia, hemiparesis- occurred in the postpartum and functional outcome is good. 2. In this case, the patient's functional system of spleen-stomach is usually weak, and due to delivery the functional system of spleen-stomach is more insufficient. so it can not control damp-phlegm(濕痰). In addition, vital energy of liver stagnate.

• Journal of Korean Neurosurgical Society
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• 제56권2호
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• pp.168-170
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• 2014

Dural arteriovenous fistula (AVF) is very rare, acquired lesion that may present with intracranial hemorrhage or neurological deficits. The etiology is not completely understood but dural AVF often has been associated with thrombosis of the involved dural sinuses. To our knowledge, this is the first well documented intracranial hemorrhage case caused by dural AVF following microvascular decompression for hemifacial spasm. A 49-year-old male patient had left microvascular decompression of anterior inferior cerebellar artery via retrosigmoid suboccipital craniotomy. The patient was in good condition without any residual spasm or surgery-related complications. However, after 10 months, he suffered sudden onset of amnesia and dysarthria. Computed tomography and magnetic resonance imaging revealed the presence of dural AVF around the left transverse-sigmoid sinus. The dural AVF was treated with Onyx$^{(R)}$ (ev3) embolization. At the one-year follow up visit, there were no evidence of recurrence and morbidity related to dural AVF and its treatment. This case confirms that the acquired etiology of dural AVF may be associated with retrosigmoid suboccipital craniotomy for hemifacial spasm, even though it is an extremely consequence of this procedure.

• Journal of Korean Neurosurgical Society
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• 제49권2호
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• pp.116-119
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• 2011

The surgical as well as endovascular treatment of blood-blister-like aneursysms (BBAs) is extremely difficult because of these pathological natures, such as small and the fragile necks. The optimal treatment of BBAs has remained uncertain. Stents are known to divert blood flow and induce thrombosis of intracranial aneurysms. We report 3 cases of successful obliteration of BBAs after multiple stents placement.

• Journal of Korean Neurosurgical Society
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• 제64권1호
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• pp.136-141
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• 2021

The crossing Y-stent method is one of the indispensable techniques to achieve sufficient neck coverage during coil embolization of bifurcation aneurysms with a wide neck and/or branch incorporation. However, the inevitable hourglass-like expansion of the second stent at the crossing point can result in insufficient vessel wall apposition, reduced aneurysm neck coverage, delayed endothelialization, and subsequent higher risks of acute or delayed thrombosis. It also interferes with engagement of the microcatheter into the aneurysm after stent installation. We expected to be able to reduce these disadvantages by installing a noncrossing type Y-stent using the Solitaire AB stent, which is fully retrievable with a tapered proximal end. Here we report the techniques and two successful cases.