1.Moyamoya-Like Vasculopathy in Neurosarcoidosis.
Jun Kyeung KO ; Sang Weon LEE ; Chang Hwa CHOI
Journal of Korean Neurosurgical Society 2009;45(1):50-52
A 31-year-old man presented with dull headache and memory disturbance lasting for one week. Computed tomographic scans revealed acute hydrocephalus. The cerebrospinal fluid contained 53 leukocytes/mm3, with a mononuclear preponderance and no erythrocytes. Magnetic resonance imaging revealed hydrocephalus and leptomeningeal enhancement. Magnetic resonance angiography and digital subtraction angiography showed supraclinoid occlusion of the right internal carotid artery, which resembled unilateral moyamoya disease. Neuroendoscopic biopsy of a lesion in the septum pellucidum revealed noncaseating granulomas, which was consistent with sarcoidosis. The patient was successfully managed with intravenous methylprednisolone and ventriculoperitoneal shunting. To our knowledge, this is the first case of moyamoya-like vasculopathy associated with neurosarcoidosis.
Adult
;
Angiography, Digital Subtraction
;
Biopsy
;
Carotid Artery, Internal
;
Central Nervous System Diseases
;
Erythrocytes
;
Granuloma
;
Headache
;
Humans
;
Hydrocephalus
;
Magnetic Resonance Angiography
;
Magnetic Resonance Imaging
;
Memory
;
Methylprednisolone
;
Moyamoya Disease
;
Sarcoidosis
;
Septum Pellucidum
;
Ventriculoperitoneal Shunt
2.Occlusion of the Middle Cerebral Artery Branch Mimicking Aneurysm.
Jung Hwan LEE ; Jun Kyeung KO ; Sang Weon LEE ; Chang Hwa CHOI
Journal of Korean Neurosurgical Society 2007;42(5):413-415
A 26-year-old man was admitted to our department due to intermittent left hemiparesis for 3 months. Magnetic resonance image showed subacute infarction in the right precentral gyrus. Digital subtraction angiography and magnetic resonance angiography revealed an aneurysmal protrusion at the right middle cerebral artery (MCA) bifurcation. It was difficult to differentiate the aneurysm from the occlusion of the middle trunk of the MCA trifurcation. Brain single photon emission computerized tomography showed a decrease in perfusion in the right posterior frontal lobe without vascular reserve. Therefore, we planned a superficial temporal artery-MCA anastomosis with an exploration of the right MCA bifurcation. Intraoperatively, the aneurysmal opacification on preoperative angiography proved to be the proximal stump of the occluded middle trunk of the MCA trifurcation. An aneurysmal protrusion at the MCA bifurcation does not always indicate an aneurysm. In diagnosing protruding vascular lesions at the MCA bifurcation, the possibility of a vascular stump should be considered according to their angioanatomical appearance and the history of the patient.
Adult
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Aneurysm*
;
Angiography
;
Angiography, Digital Subtraction
;
Brain
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Frontal Lobe
;
Humans
;
Infarction
;
Magnetic Resonance Angiography
;
Middle Cerebral Artery*
;
Paresis
;
Perfusion
;
Tomography, Emission-Computed, Single-Photon
3.External Carotid Artery Angioplasty and Stenting Followed by Superficial Temporal Artery to Middle Cerebral Artery Anastomosis.
Jun Kyeung KO ; Sang Weon LEE ; Tae Hong LEE ; Chang Hwa CHOI
Journal of Korean Neurosurgical Society 2009;46(5):488-491
A 31-year-old man presented with right hemiparesis, and magnetic resonance imaging revealed a small infarct at left basal ganglia. Digital subtraction angiography showed left cervical internal carotid artery (ICA) occlusion and severe stenosis of the ipsilateral external carotid artery (ECA) with collateral cerebral circulation fed by ECAs. Based on the results of a functional evaluation of cerebral blood flow, we performed preventive ECA angioplasty and stenting for advanced ECA stenosis to ensure sufficient blood flow to the superficial temporal artery. Eight weeks later, superficial temporal artery to middle cerebral artery (STA-MCA) anastomosis was performed. His postoperative course was uneventful and no additional transient ischemic attacks have occurred. To our knowledge, this is the first report of preventive angioplasty and stenting for advanced narrowing of an ECA before STA-MCA anastomosis for ipsilateral ICA occlusion.
Adult
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Angiography, Digital Subtraction
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Angioplasty
;
Basal Ganglia
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Carotid Artery, External
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Carotid Artery, Internal
;
Constriction, Pathologic
;
Dietary Sucrose
;
Humans
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Ischemic Attack, Transient
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Magnetic Resonance Imaging
;
Middle Cerebral Artery
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Paresis
;
Stents
;
Temporal Arteries
4.Early Rupture after Coiling of Unruptured Aneurysm.
Jun Kyeung KO ; Sang Weon LEE ; Tae Hong LEE ; Chang Hwa CHOI
Journal of Korean Neurosurgical Society 2007;42(3):235-237
We describe a case of an unruptured basilar top aneurysm that was associated with early rupture after incomplete coiling. A 62-year-old woman with a history of several small infarctions has undergone coiling of unruptured basilar top aneurysm. Two weeks after initial coiling the patient presented with Hunt and Hess grade IV subarachnoid hemorrhage consistent with a ruptured basilar top aneurysm. Repeat angiography revealed a rupture of recanalized basilar top aneurysm. Second embolization with additional coils resulted in complete occlusion. However, her neurological status was not improved afterward and she was transferred to department of rehabilitation one month after hemorrhage with comatous state. To our knowledge, this is the first case of fatal early rupture after coiling of unruptured aneurysm. It has been speculated that coiling could cause injury to aneurysmal wall and facilitate rupture.
Aneurysm*
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Angiography
;
Female
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Hemorrhage
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Humans
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Infarction
;
Intracranial Aneurysm
;
Middle Aged
;
Rehabilitation
;
Rupture*
;
Subarachnoid Hemorrhage
5.Coiling of Middle Cerebral Artery Bifurcation Aneurysms : Clinical and Angiographic Outcomes.
Jung Hwan LEE ; Jun Kyeung KO ; Sang Weon LEE ; Tae Hong LEE ; Chang Hwa CHOI
Korean Journal of Cerebrovascular Surgery 2008;10(3):411-418
OBJECTIVE: The anatomy of middle cerebral artery (MCA) bifurcation aneurysms has been noted to be unfavorable for endovascular treatment. Our purpose was to analyze the clinical and angiographic results of coiling of the MCA bifurcation aneurysms. METHODS: From January 2004 to April 2007, 26 patients harboring 29 MCA bifurcation aneurysms were treated with coils. Of these patients, 16 had subarachnoid hemorrhages (SAH). The bleeding source was a ruptured MCA bifurcation aneurysm in 11 patients and a ruptured aneurysm in a different location in 5 patients, respectively. Treatment-related complications, clinical outcomes, and postprocedural and follow-up angiography results were retrospectively evaluated. RESULTS: 29 MCA bifurcation aneurysms (11 ruptured, 18 unruptured) were occluded with coils in 26 patients. Occlusion was complete for 24 (82.8%) of the 29 aneurysms, incomplete for 3 (10.3%), and partial for 2 (6.9%) aneurysms. Procedural complications included thromboembolism in 6, a small nonocclusive thrombus formation in 1, and intraprocedural aneurysmal rupture in 1. All of symptomatic complications were thromboembolic events that occurred 3 patients with unruptured aneurysm and they discharged with moderate disability state. Follow-up angiograms were available on 16 patients with 18 aneurysms and 1 patient with an initial complete occlusion had a slight neck recanalization. CONCLUSION: Coiling of MCA bifurcation aneurysm could be achieved without treatment-induced neurologic deficit in 88.5% (23/26) of the patients while at the same time obtaining favorable anatomic results. Improvements in device technology and technique will certainly greatly increase the safety of coiling of MCA bifurcation aneurysm, widening its indications.
Aneurysm
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Aneurysm, Ruptured
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Angiography
;
Follow-Up Studies
;
Hemorrhage
;
Humans
;
Intracranial Aneurysm
;
Middle Cerebral Artery
;
Neck
;
Neurologic Manifestations
;
Retrospective Studies
;
Rupture
;
Subarachnoid Hemorrhage
;
Thromboembolism
;
Thrombosis
6.Composition of Flavonoids and Antioxidative Activity from Juice of Jeju Native Citrus Fruits during Maturation.
Yong Dug KIM ; Weon Jun KO ; Kyung Soo KOH ; You Jin JEON ; Soo Hyun KIM
The Korean Journal of Nutrition 2009;42(3):278-290
This study aims to evaluate the changes of flavonoid contents and antioxidants activity of Jeju native citrus fruits juice according to the harvest date. Flavonoids such as quercatagetin, narirutin, hesperidin and neohesperidin were contained most plentifully in the juice of Jigak (Citrus aur- antium) by 573.73 mg/100 mL, Sadoogam (C. pseudogulgul) by 393.99 mg /100 mL, Soyooja by 29.63 mg/100 mL and Jigak (C. aurantium) by 201.23 mg/100 mL in the late August, respectively. The highest contents of nob-iletin, sinensetin and tangeretin among polymethoxyflavones were found in the juice of Hongkyool (C. tachibana) by 7.39 mg/100 mL, 2.24 mg/100 mL, 0.63 mg/100 mL in the late August, respectively. 3,5,6,7,8,3',4'- Heptamet- hoxyflavone recorded the highest amount in Punkyool (C. tangerina) by 0.27 mg/100 mL in the late August, but the other polymethoxyflavones including 3',4',7,8-tetramethoxyflavone, 3',4'-dimethoxyflavone, 4'-methoxyflavone, 5,6,7,3',4',5'-hexamethoxyflavone, scutellarein tetramethylether were observed only trace amount in all the citrus fruits. Flavonoid contents in the citrus fruit juices were the highest during early maturation and decreased rapidly while ripening. Total polyphenol contents were the highest in the late August and decreased with ripening. However from the late December, the contents were increased again. Antioxidant activities of the fruits were evaluated as electron donating ability and were the lowest in the late September and increased with the fruit ripening. These results suggest that quercetagetin among all the flavonoids was most plentiful in Jigak and Dangyooja (C. grandis), so that the fruits could be used for industrial material of flavonoids and antioxidant agents.
Antioxidants
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Apigenin
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Chromones
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Citrus
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Disaccharides
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Electrons
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Flavanones
;
Flavones
;
Flavonoids
;
Fruit
;
Hesperidin
7.A Case of Nasal Septal Perforation Due to Alkaline Disc Battery as a Nasal Foreign Body.
Ki Sang RHA ; Weon Jo CHOI ; Pil Jun KO ; Chan Il PARK
Korean Journal of Otolaryngology - Head and Neck Surgery 1997;40(2):300-303
Due to the common use of alkaline disc batteries(e.g. watches, electronic toys and games, calculators, cameras) physicians and the general public should be more aware of this battery foreign body and the peculiarities in their management. Alkaline disc batteries as foreign bodies in the nasal cavities are extremely rare but dangerous because they can cause liquefaction necrosis with subsequent severe local tissue destruction. Batteries found in the nasal cavities should be removed immediately to prevent sequelae such as septal perforations or nasal stenosis. We recently experienced a case of 4-year-old boy who revealed necrotic perforation of nasal septum which was exposed directly to a alkaline disc battery for 20 hours and the special aspects of these foreign body is discussed.
Child, Preschool
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Constriction, Pathologic
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Foreign Bodies*
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Humans
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Male
;
Nasal Cavity
;
Nasal Septal Perforation*
;
Nasal Septum
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Necrosis
;
Play and Playthings
8.Does Systemic Lupus Erythematosus Increase the Riskof Procedure-Related Complication in EndovascularTreatment of Intracranial Aneurysm?
Jung Hwan LEE ; Sang Weon LEE ; Chang Hwa CHOI ; Jun Kyeung KO
Yonsei Medical Journal 2020;61(5):441-444
Cerebral aneurysms associated with systemic lupus erythematosus (SLE) are more likely to grow rapidly and rupture, comparedto those found in the general population. The main underlying pathology of intracranial aneurysm and its rupture is presumed tobe SLE-related intracranial vasculitis and fragility of blood vessels due to prolonged use of steroid. For these reasons, both surgicaland endovascular options are challenging. On the other hand, given the possibility that SLE may predispose to growth andrupture of intracranial aneurysm, early intervention for cerebral aneurysms associated with SLE may be more necessary andbeneficial than other cerebral aneurysms in the general population. Here we would like to report on the unexpected complicationsthat occurred during or after endovascular treatment of an SLE patient with multiple aneurysms. The complications includeintraprocedural rupture of unruptured aneurysm, coil stretching, contrast-induced encephalopathy, and delayed ipsilateral intraparenchymalhemorrhage after stent-assisted coiling. Our unique case highlights that the SLE patient with multiple intracranialaneurysms had a higher risk of endovascular procedure-related complications, which might be due to the increased bleedingtendency and fragility of blood vessels.
9.Semi-Jailing Technique Using a Neuroform3 Stent for Coiling of Wide-Necked Intracranial Aneurysms.
Jun Kyeung KO ; Won Ho CHO ; Seung Heon CHA ; Chang Hwa CHOI ; Sang Weon LEE ; Tae Hong LEE
Journal of Korean Neurosurgical Society 2017;60(2):146-154
OBJECTIVE: The semi-jailing technique (SJT) provides stent-assisted remodeling of the aneurysm neck during coil embolization without grasping the coil delivery microcatheter. We retrospectively evaluated the efficacy and safety of SJT using a Neuroform3 stent for coiling of wide-necked intracranial aneurysms. METHODS: We collected the clinical and radiological data between January 2009 and June 2015 of the wide-necked aneurysms treated with SJT using a Neuroform3 stent. RESULTS: SJT using a Neuroform3 stent was attempted in 70 wide-necked aneurysms (68 patients). There were 56 unruptured and 14 ruptured aneurysms. The size of aneurysm ranged from 1.7 to 28.1 mm (mean 6.1 mm). The immediate angiographic results were complete occlusion in 55 aneurysms (78.6%), neck remnant in 7 (10.0%), and aneurysm remnant in 8 (11.4%). Overall, periprocedural complications occurred in 13 patients (19.1%), including asymptomatic thromboembolism in 7 (10.3%), symptomatic thromboembolism in 4 (5.9%), and symptomatic hemorrhagic complications in 2 (2.9%). Conventional angiography follow-up was obtained in 55 (78.6%) of 70 aneurysms (mean, 10.9 months). The result showed progressive occlusion in 7 aneurysms (12.7%) and recanalization in 1 aneurysm (1.8%). At the end of the observation period (mean, 17.5 months), all 54 patients without subarachnoid hemorrhage showed excellent clinical outcomes (modified Rankin Scale [mRS] 0), except two (mRS 1 or 2) and seven of 14 patients with subarachnoid hemorrhage remained symptom-free (mRS 0). CONCLUSION: In this report of 70 aneurysms, SJT using a Neuroform3 stent for coiling of wide-necked intracranial aneurysms showed good technical safety, as well as favorable clinical and angiographic outcomes.
Aneurysm
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Aneurysm, Ruptured
;
Angiography
;
Embolization, Therapeutic
;
Follow-Up Studies
;
Hand Strength
;
Humans
;
Intracranial Aneurysm*
;
Neck
;
Retrospective Studies
;
Stents*
;
Subarachnoid Hemorrhage
;
Thromboembolism
10.Value of a Diagnostic RSS (rapid streptococcal screening) Test for Patients with Sore Throat in the Emergency Department.
Young Tae PARK ; Ok Jun KIM ; Sung Wook CHOI ; Eui Chung KIM ; Ta Ei KO ; Ki Hyung KIM ; Kyeung Weon KANG ; Hyun Soo KIM ; Dong Wook LEE
Journal of the Korean Society of Emergency Medicine 2008;19(6):738-742
PURPOSE: This paper compares a RSS (Rapid Streptococcal Screening) detection test with a throat culture. The RSS detection kit is an easier and faster way to identify the infection of Group A beta-hemolytic streptococcus (GABHS), the most common causal agent of acute bacterial pharyngitis. We also examine the clinical symptoms that are associated with bacterial pharyngitis. METHODS: A throat culture and a RSS detection test were performed simultaneously to all 239 patients who were suspected of having acute pharyngitis, and visited the emergency department between September 1st, 2002, and June 30th, 2003. Then the values of the RSS detection test were analyzed comparatively on a chi square test. The correlation between Centor criteria clinical features and bacterial pharyngitis was examined through a logic regression test. RESULTS: Comparative analysis of the results of a throat culture and RSS detection test showed a test sensitivity of 83.6%, specificity was 97.2%, and the kappa coefficient was 0.83 (95% C.I: 0.75~0.91). This suggests that the RSS detection test is valuable statistically. CONCLUSION: The RSS detection test is more accurate than the diagnosis of bacterial pharyngitis based on clinical features. Assuming that all patients with acute pharyngitis take antibiotics, an RSS detection test reduce of unnecessary antibiotics use.
Anti-Bacterial Agents
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Emergencies
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Humans
;
Logic
;
Pharyngitis
;
Pharynx
;
Sensitivity and Specificity
;
Streptococcal Infections
;
Streptococcus