1.Surgical Management of Unruptured Intracranial Aneurysms.
Jae Sung AHN ; Yang KWON ; Byung Duk KWUN
Journal of Korean Neurosurgical Society 2000;29(3):330-335
No abstract available.
Intracranial Aneurysm*
2.Epidermoid Tumor of Posterior Fossa : Analysis of 10 Cases.
Hyo Joo LIM ; Jae Sung AHN ; Yang KWON ; Jung Kyo LEE ; Byung Duk KWUN
Journal of Korean Neurosurgical Society 2000;29(6):744-747
No abstract available.
3.A Case of Postpoliomyelitis Muscular Atrophy.
Jin Yong CHOI ; Kyung Duk LEE ; Oh Sang KWON ; Byung Kun MIN ; Je Geun CHI
Journal of the Korean Neurological Association 1988;6(1):110-115
A relationship between preceding acute paralytic poliomyelitis and the later development of motor neuron disease has only occasionally been suggested since it was first postulated by Charcot in 1875. The authors recently experienced a 20-year-old male who was considered to have postpoliomyelitis muscular atrophy. We report this case in view of its rarity and necessity of differential diagnosis from other neuromuscular disorders. Clinical presentation included slowly progressive muscle wasting of left thigh for 4 years, mild weakness of left arm and both thigh, intermittent fasciculation, and previous history of acute paralytic poliomyelitis. Electromyographic findings showed fibrillation potentials, positive sharp waves, fasciculations, giant motor unit potentials and reduced interference patterns. Muscle biopsy revealed scattered small angulated fibers, individual myofiber degeneration and mild inflammatory cell infiltration.
Arm
;
Biopsy
;
Diagnosis, Differential
;
Fasciculation
;
Humans
;
Male
;
Motor Neuron Disease
;
Poliomyelitis
;
Postpoliomyelitis Syndrome*
;
Thigh
;
Young Adult
4.Management Outcomes of Basilar Bifurcation Aneurysms.
Jae Sung AHN ; Jung Hoon KIM ; Yang KWON ; Byung Duk KWUN
Journal of Korean Neurosurgical Society 2000;29(7):918-922
No abstract available.
Aneurysm*
5.Value of infusion-DSA(digital subtraction angiography) in diagnosis of primary hepatocellular carcinoma.
Jeong Mi KWON ; So Sun KIM ; Jin Do HUH ; Ho Joon KIM ; Byung Hee CHUN ; Young Duk JOH
Journal of the Korean Radiological Society 1991;27(5):692-698
No abstract available.
Carcinoma, Hepatocellular*
;
Diagnosis*
6.Ischemic Complications Occurring in the Contralateral Hemisphere after Surgical Treatment of Adults with Moyamoya Disease.
Young Jin JUNG ; Jae Sung AHN ; Do Hoon KWON ; Byung Duk KWUN
Journal of Korean Neurosurgical Society 2011;50(6):492-496
OBJECTIVE: Direct revascularization surgery is regarded as the most effective method of treatment of adults with moyamoya disease. These patients, however, have a higher risk of perioperative ischemic complications than do patients with atherosclerotic stroke, and are at risk for ischemic complications in the hemisphere contralateral to the one operated on. We investigated the incidence and risk factors for ischemic stroke in the contralateral hemisphere after surgical treatment of adults with moyamoya disease. METHODS: We retrospectively reviewed the medical records and results of neuroimaging studies on 79 hemispheres of 73 consecutive patients with adult moyamoya disease (mean+/-SD age, 37.96+/-11.27 years; range, 18-62 years) who underwent direct bypass surgery over 6 years. RESULTS: Ischemic complications occurred in 4 of 79 (5.1%) contralateral hemispheres, one with Suzuki stage 3 and three with Suzuki stage 4. Three patients showed posterior cerebral artery (PCA) involvement by moyamoya vessels. Advanced stage of moyamoya disease (Suzuki stages 4/5/6; p=0.001), PCA involvement (p=0.001) and postoperative hypotension (mean arterial blood pressure <80% of preoperative mean arterial blood pressure) on the first (p<0.0001) and second (p=0.003) days after surgery were significantly correlated with postoperative contralateral ischemic complications. CONCLUSION: In patients with advanced moyamoya disease and involvement of the PCA, intentional hypotension can result in ischemic stroke in the hemisphere contralateral to the one operated on. Careful control of perioperative blood pressure is crucial for good surgical results.
Adult
;
Arterial Pressure
;
Blood Pressure
;
Cerebral Revascularization
;
Humans
;
Hypotension
;
Incidence
;
Medical Records
;
Moyamoya Disease
;
Neuroimaging
;
Passive Cutaneous Anaphylaxis
;
Perioperative Period
;
Posterior Cerebral Artery
;
Retrospective Studies
;
Risk Factors
;
Stroke
7.Endovascular Surgery of Vertebral Artery Dissecting Aneurysm.
Bumn Suk SUH ; Yang KWON ; Byung Duk KWUN
Journal of Korean Neurosurgical Society 1999;28(8):1179-1184
OBJECTIVE: This study was undertaken to demonstrate the usefulness of endovascular technique in treatment of vertebral artery dissecting aneurysms. METHODS: The clinical characteristics of vertebral artery dissecting aneurysms were reviewed in 11 patients with particular focus on clinical presentation, angiographic feature and outcome. RESULTS: All patients underwent the GDC embolization. One of them was managed with surgical trapping after failure of GDC embolization and the other with GDC embolization after failure of stent insertion. Nine patients were recovered with intact neurological feature, one patient died as result of sepsis and ARDS, and one patient was suffered from cerebellar infarction. CONCLUSION: Although the timing of the procedure and site of occlusion remain controversial, proximal GDC occlusion of vertebral artery appears to be a safe and effective therapy for patients with vertebral artery dissecting aneurysm. This procedure provides an important, less invasive alternative for this condition.
Aneurysm, Dissecting*
;
Endovascular Procedures
;
Humans
;
Infarction
;
Sepsis
;
Stents
;
Vertebral Artery*
8.Cavernous Angioma;Natural History and Management Strategies.
Hyo Joo LIM ; Yang KWON ; Jae Sung AHN ; Jeong Hoon KIM ; Chang Jin KIM ; Jung Kyo LEE ; Byung Duk KWUN
Journal of Korean Neurosurgical Society 2000;29(8):1001-1007
No abstract available.
9.Outcome of Gamma Knife Radiosurgery for Trigeminal Neuralgia.
Sang Ryong JEON ; Dong Joon LEE ; Jeong Hoon KIM ; Chang Jin KIM ; Yang KWON ; Jung Kyo LEE ; Byung Duk KWUN
Journal of Korean Neurosurgical Society 2000;29(9):1228-1232
No abstract available.
Radiosurgery*
;
Trigeminal Neuralgia*
10.Biliary endoprosthesis
Jung Hyeok KWON ; Yong Sun KIM ; Byung Won JANG ; Tae Hun KIM ; Yong Joo KIM ; Duk Sik KANG ; Ilwoo WHANG
Journal of the Korean Radiological Society 1986;22(1):19-26
Biliary endoprosthesis could provide permanent internal biliary drainage inpatient with obstructive jaundicewith advantages of absence of troublesome external catheter and no loss of fluid, bile and electrolytes overexternal drainage. Incidence of sepsis and cholangitis may be lowered. Endoprosthesis was performed in 18 patientsof obstructive jaundice from January, 1985 to december, 1985 at Department of Radilogy, Kyungpook NationalUniversity Hospital. The results are as follows: 1. The cases of obstructive jaundice included bile duct cancer in11, stomach ca. metastasis in 3, ca. of ampulla of Vater in 1, ca. of head of pancresas in 1, CBD cancer withpostop. recurrenced in 1, and impacted CBD stone in 1 case. 2. The levels of obstruction were at the trifurcationin 8, CHD in 5, proximal CBD in 3, and distal CBD in 2 cases. 3. Decline of serum bilirubin level was noted in 15cases with the most rapid decline wihtin 1 week after the procedure. 4. The complication occurred in 5 cases. Thethree cases were recovered spontaneously, but one died of bile peritonitis, another experienced obstrution ofendoprosthesis. 5. The endoprosthesis is benificial intreatment of obstructive jaundice for which surgery is notindicated, and saving expensive abdominal surgery and less advantageous percutaneous external drainage, henceenhancing life quality.
Ampulla of Vater
;
Bile
;
Bile Duct Neoplasms
;
Bilirubin
;
Catheters
;
Cholangitis
;
Drainage
;
Electrolytes
;
Gyeongsangbuk-do
;
Head
;
Humans
;
Incidence
;
Inpatients
;
Jaundice, Obstructive
;
Neoplasm Metastasis
;
Peritonitis
;
Quality of Life
;
Sepsis
;
Stomach