http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Yeongu Chung,Eui Jong Kim,Seok Keun Choi,Sung Ho Lee 대한뇌혈관외과학회 2016 Journal of Cerebrovascular and Endovascular Neuros Vol.18 No.4
We report a case of dural arteriovenous fistula (DAVF) that showed spontaneous conversion of venous drainage pattern from Borden type II to type III within a four month period of follow-up. Upon admission, the patient presented with aggravated neurologic status and newly developed seizure. After admission, endovascular embolization was performed through the middle meningeal artery with Onyx®. Complete obliteration of dural arteriovenous shunt was confirmed by angiography, and the patient's clinical symptoms improved. Although most cases of DAVF show benign clinical course and conversion pattern, close follow-up is required to detect potential aggravation.
Kim, Woojin,Chung, Yeongu,Choi, Seunghwan,Min, Byung-Il,Kim, Sun Kwang MDPI 2017 INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES Vol.18 No.12
<P>Oxaliplatin is a widely used chemotherapy agent, but induces serious peripheral neuropathy. Duloxetine is a dual reuptake inhibitor of serotonin and norepinephrine, and is shown to be effective against pain. However, whether and how duloxetine can attenuate oxaliplatin-induced allodynia in rodents is not clearly understood. A single injection of oxaliplatin (6 mg/kg, intraperitoneal; i.p.) induced a cold and mechanical allodynia, which was assessed by acetone and von Frey filament tests, respectively. When significant allodynic signs were observed, three different doses of duloxetine (10, 30, and 60 mg/kg, i.p.) were injected. Administration of 30 and 60 mg/kg of duloxetine significantly reduced the allodynia, whereas 10 mg/kg did not. By using an in vivo extracellular recording method, we further confirmed that 30 mg/kg of duloxetine could significantly inhibit the hyperexcitability of spinal wide dynamic range (WDR) cells. The anti-allodynic effect of duloxetine was completely blocked by an intrathecal injection of phentolamine (non-selective α-adrenergic receptor antagonist, 20 μg), or prazosin (α<SUB>1</SUB>-adrenergic receptor antagonists, 10 μg); however, idazoxan (α<SUB>2</SUB>-adrenergic receptor antagonist, 10 μg) did not block it. In conclusion, we suggest that duloxetine may have an effective protective action against oxaliplatin-induced neuropathic pain and spinal hyperexcitability, which is mediated by spinal α<SUB>1</SUB>-adrenergic receptors.</P>
Oh Woowon,Chung Yeongu,Hong Je Beom,Won Yu Sam,Chung Pil-Wook,Rho Myung Ho 대한말초신경학회 2021 The Nerve Vol.7 No.2
Objective: Ruptured anterior cerebral artery (ACA) trunk aneurysms and middle cerebral artery (MCA) trunk aneurysms are rare, and little is known about them. This study was conducted to determine the difference between these and other types of aneurysms.Methods: We performed a retrospective review of patients diagnosed with subarachnoid hemorrhage over an 8-year period at a single institution. We analyzed the characteristics, clinical factors, and radiological components of aneurysms at the trunk portion of A-1 and M-1. Descriptive analysis and univariate analysis for factors were performed to determine the differences of ACA A-1 portion trunk and MCA M-1 portion trunk aneurysms from other ACA and MCA aneurysms, respectively.Results: Univariate logistic regression modeling showed that trunk aneurysms in MCA M-1 had a smaller dome size (p=0.026) and dome/neck ratio (p=0.048) than other MCA aneurysms. Likewise, through univariate logistic regression modeling, the ACA group showed differences in dome size including age (p=0.001) as well as dome size (p=0.038) and dome neck ratio (p=0.041) in the A1 region.Conclusion: MCA M-1 and ACA A-1 trunk aneurysms are likely to have several different characteristics such as small in size and a lower dome/neck ratio. Also, due to their close locations to the perforator arteries, there is a high possibility of perforator artery injury when treating these aneurysms. Thus, careful attention is required when setting the treatment methods, and further studies about these aneurysms are needed.
Glioblastoma Presenting as Spontaneous Subdural Hematoma
Oh Woowon,Chung Yeongu,Hong Je Beom,Won Yu Sam,Chung Pil-Wook,Rho Myung Ho 대한말초신경학회 2021 The Nerve Vol.7 No.2
A 76-year-old man presented with recurrent left side weakness for several months without a history of head trauma. Brain computed tomography revealed a subdural hematoma (SDH). The patient was diagnosed with a chronic SDH and empirically treated via burr hole trephination. However, the origin of SDH was eventually confirmed to be glioblastoma.
Hong Chang Eui,Chung Yeongu,Won Yu Sam,Rho Myung Ho,Chung Pil-Wook 대한말초신경학회 2019 The Nerve Vol.5 No.2
Objective Thromboembolism is the most common complication in stent-assisted coiling (SAC) procedures. This study aimed to evaluate the incidence and risk factors of thromboembolic complication in patients who underwent SAC for intracerebral aneurysm. Methods Between January 2006 and December 2017, 35 patients (35 aneurysms) in the acute phase of subarachnoid hemorrhage (SAH) underwent SAC without antiplatelet premedication. Additionally, 45 patients (48 unruptured aneurysms) underwent SAC with antiplatelet premedication. Baseline patient characteristics were compared between the unruptured and ruptured aneurysm groups. Risk factors of thromboembolic complications were also analyzed. Results Thromboembolic complications occurred in 11 of 83 aneurysms treated with SAC, among which 3 occurred in 48 unruptured aneurysms (6.3%; p=0.046) and 8 occurred in 35 ruptured aneurysms (22.9%; p=0.046). However, there was no permanent morbidity due to thromboembolic complications in either group. Conclusion The thromboembolic complication rate for SAC in patients with ruptured aneurysms was significantly higher than for those with unruptured aneurysms. However, there was no permanent morbidity of thromboembolic complications, there seems to be no reason to reluctant SAC due to the risk of thromboembolic complications in patients with SAH.
Kim Moinay,Jeon Hanwool,Chung Yeongu,Lee Si Un,Park Wonhyoung,Park Jung Cheol,Ahn Jae Sung,Lee Seungjoo 대한의학회 2023 Journal of Korean medical science Vol.38 No.21
Background: Subarachnoid hemorrhage (SAH) patients have oxidative stress results in inflammation, tissue degeneration and neuronal damage. These deleterious effects cause aggravation of the perihematomal edema (PHE), vasospasm, and even hydrocephalus. We hypothesized that antioxidants may have a neuroprotective role in acute aneurysmal SAH (aSAH) patients. Methods: We conducted a prospective, multicenter randomized (single blind) trial between January 2017 and October 2019, investigating whether antioxidants (acetylcysteine and selenium) have the potential to improve the neurologic outcome in aSAH patients. The antioxidant patient group received antioxidants of acetylcysteine (2,000 mg/day) and selenium (1,600 µg/day) intravenously (IV) for 14 days. These drugs were administrated within 24 hours of admission. The non-antioxidant patient group received a placebo IV. Results: In total, 293 patients were enrolled with 103 patients remaining after applying the inclusion and exclusion criteria. No significant differences were observed in the baseline characteristics between the antioxidant (n = 53) and non-antioxidant (n = 50) groups. Among clinical factors, the duration of intensive care unit (ICU) stay was significantly shortened in patients who received antioxidants (11.2, 95% confidence interval [CI], 9.7–14.5 vs. 8.3, 95% CI, 6.2–10.2 days, P = 0.008). However, no beneficial effects were observed on radiological outcomes. Conclusion: In conclusion, antioxidant treatment failed to show the reduction of PHE volume, mid-line shifting, vasospasm and hydrocephalus in acute SAH patients. A significant reduction in ICU stay was observed but need more optimal dosing schedule and precise outcome targets are required to clarify the clinical impacts of antioxidants in these patients.
Ruptured Aneurysm of Recurrent Artery of Heubner: A Case Report
Hong Chang Eui,Chung Yeongu,Won Yu Sam,Chung Pil-Wook,Rho Myung Ho 대한말초신경학회 2019 The Nerve Vol.5 No.2
Recurrent artery of Heubner (RAH) aneurysms are extremely rare and few cases have been reported in the literature. A 53-year-old woman was transferred for evaluation and management of spontaneous subarachnoid hemorrhage (SAH). Cerebral angiography revealed a rupture of RAH aneurysm. The aneurysm was secured with a fenestrated right-angled Yasargil clip along the RAH. Postoperative brain computed tomography showed a hypodense lesion at the left head of the caudate nucleus due to obliteration of the RAH. Fortunately, the patient experienced no neurologic deficits. To avoid iatrogenic obliteration of RAH, intraoperative careful confirmation of its flow should be performed. We report a case of RAH aneurysm in a patient with SAH.
감마나이프 방사선 수술로 조절되지 않은 두개저 수막종의 수술적 제거 : 증례보고
이재철(Jae Cheol Lee),정연구(Yeongu Chung),홍제범(Je Beom Hong),김한규(Han Kyu Kim) 대한두개저학회 2020 대한두개저학회지 Vol.15 No.2
Because of their deep location, surrounded by many vital neurovascular structures, skull base meningiomas have been regarded as challenging lesions for surgical treatment. Stereotactic radiosurgery has been reported to be safe and effective to control skull base meningiomas. However, the use of radiosurgery must be considered very cautiously in treating skull base meningiomas, especially younger patients. In this study, we report a case with a huge skull base meningioma who had received radiosurgery prior to surgical removal.
Extensive Leptomeningeal Spreading of Ependymoma in an Adult: Case Report and Literature Review
( Joonseo Kang ),( Kwon Woo Lee ),( Yeongu Chung ),( Yusam Won ),( Je Beom Hong ) 대한뇌종양학회·대한신경종양학회·대한소아뇌종양학회 2023 Brain Tumor Research and Treatment Vol.11 No.4
Ependymoma is a rare adult tumor that originates from ependymal cells of the central nervous system, primarily occurring in the cerebral ventricles or the central canal of the spinal cord. In this paper, we report a case of extensive leptomeningeal seeding of ependymoma of a 39-year-old male patient, in whom the tumor was found incidentally after head trauma. The MRI exhibited diffuse leptomeningeal infiltrative lesions along with bilateral multiple cerebral sulci, basal cisterns, cerebellopontine angle, cerebellar folia. It also showed multinodular enhancing T1 low T2 high signal intensity lesions along the whole spinal cord. After the tumor biopsy at right temporal lesion, pathologic diagnosis was classic ependymoma (WHO grade 2). The patient has undergone radiation therapy and chemotherapy, and is currently maintaining a stable condition two years after surgery. This report suggests that when considering the differential diagnosis of extensive lesions both in the intracranial and intraspinal space, ependymoma should also be considered.