1.A Case of Complex Partial Status Epilepticus.
Journal of the Korean Child Neurology Society 1999;7(1):107-112
Nonconvulsive status epilepticus, which constitutes about 25% of all cases of status, has been subdivided into generalized nonconvulsive(absence) status and complex partial status. We report a case of complex partial status epilepticus in a 3-year-old male patient with altered mental function lasting about 24 hours. The electroencephalographic finding was compatible with complex partial status and the outcome of treatment is excellent, so far.
Child, Preschool
;
Humans
;
Male
;
Status Epilepticus*
2.MRI follow-up study and 1H-MR spectroscopic finding in a patient with Kearns-Sayre syndrome.
Chulhee CHOI ; Il Nam SUNWOO ; Tae Seung KIM ; Pyoung JEON
Journal of the Korean Neurological Association 1998;16(3):388-391
Serial Brain MRI was performed on a seventeen-year-old girl with Kearns-Sayre syndrome. At the age of 11, she complained bilateral ptosis. Two years later, bilateral blepharoplasty was done and brain MRI was taken. T2-weighted MRI sequence showed high signal intensity areas in the brainstem, thalamus and white matter of the cerebrum and cerebellum bilaterally. Four years later, chronic progressive external ophthalmoplegia developed and serial MRI and proton MRS were taken. Follow-up MRI showed similar but slightly progressed findings compared with previous films. The proton MR spectroscopic imaging demonstrated focal localization of abnormally increased lactate content in the involved area of the brain.
Blepharoplasty
;
Brain
;
Brain Stem
;
Cerebellum
;
Cerebrum
;
Female
;
Follow-Up Studies*
;
Humans
;
Kearns-Sayre Syndrome*
;
Lactic Acid
;
Magnetic Resonance Imaging*
;
Magnetic Resonance Spectroscopy
;
Ophthalmoplegia, Chronic Progressive External
;
Protons
;
Thalamus
3.Genetic Analysis in a Case of Transient Neonatal Diabetes Mellitus with Congenital Adrenal Hyperplasia.
Hye Jin KWON ; Jin A PARK ; Sang Lack LEE ; Heung Sik KIM ; Dong Seok JEON ; Dong Kyu JIN ; Pyoung Han HWANG
Journal of Korean Society of Pediatric Endocrinology 2002;7(1):116-121
A case of transient neonatal diabetes mellitus combined with congenital adrenal hyperplasia(CAH) is described. A female infant was born by cesarean delivery due to fetal distress, she had sunken eyeball and anterior fontanelle, large protruded tongue and thin subcutaneous tissues. She had large clitoris and progressive pigmentation on whole body was observed since 10th day of birth. Hyperglycemia and glycosuria was noted at 3rd day of birth. Level of insulin and C-peptide was 3.0 mU/L and 0.35 ng/mL respectively. Serum ACTH was 870.4 pg/mL and 17-hydroxyprogesterone was increased to 20,000 ng/dL. Serum Na was 124 mEq/L, K 5.6 mEq/L. Abdominal MRI showed no abnormality. Chromosomal study showed 46,XX. Genetic analysis with polymorphic DNA markers for chromosome 6 showed paternal uniparental isodisomy at D6S276, D6S1704 and DNA analysis of CYP 21 gene showed mutation at P435S. She required insulin therapy for 8 months after birth. Hydrocortisone and florinef was needed for the control of CAH.
17-alpha-Hydroxyprogesterone
;
Adrenal Hyperplasia, Congenital*
;
Adrenocorticotropic Hormone
;
C-Peptide
;
Chromosomes, Human, Pair 6
;
Clitoris
;
Cranial Fontanelles
;
Diabetes Mellitus*
;
DNA
;
Female
;
Fetal Distress
;
Genetic Markers
;
Glycosuria
;
Humans
;
Hydrocortisone
;
Hyperglycemia
;
Infant
;
Insulin
;
Magnetic Resonance Imaging
;
Parturition
;
Pigmentation
;
Subcutaneous Tissue
;
Tongue
;
Uniparental Disomy
4.Carotid Stump as a Cause of Recurrent Embolism-Endovascular Treatment in a Case of Congenital Carotid Stump Syndrome.
Jonghwa SHIN ; Jihoon CHA ; Pyoung JEON ; Oh Young BANG
Journal of Stroke 2015;17(3):359-361
No abstract available.
5.High-dose Methylprednisolone Pulse Therapy in Measles Postinfectious Encephalomyelitis: Two Cases of Successful Recovery.
Me Jin KIM ; Hee Jung CHUNG ; Pyoung JEON
Journal of the Korean Child Neurology Society 2002;10(1):142-149
We treated two patients of measles postinfectious encephalomyelitis with intravenous methylprednisolone pulse therapy(1 g/1.73 m2/day for 5 days) 38 hours and 5 days respectively after the onset of neurologic symptoms. Despite extensive white matter involvement shown in MRI and severe clinical symptoms, the patients recovered from their neurologic symptoms dramatically following intravenous methylprednisolone pulse therapy. Because acute postinfectious encephalomyelitis has been postulated to be immunologically mediated disease, instead of direct viral invasion, ACTH and dexamethasone are widely used and the outcome is variable. This case report of successful recovery from fulminant ADEM with pulse intravenous methylprednisolone therapy, although uncontrolled, suggests that this therapeutic regimen should be studied in other cases.
Adrenocorticotropic Hormone
;
Dexamethasone
;
Encephalomyelitis, Acute Disseminated*
;
Humans
;
Magnetic Resonance Imaging
;
Measles*
;
Methylprednisolone*
;
Neurologic Manifestations
6.Stenting of Symptomatic Middle Cerebral Artery Stenosis: Case Report.
Pyoung JEON ; Yong Sam SHIN ; Sung Ryoung LIM ; Sun Jung KIM
Korean Journal of Cerebrovascular Disease 2002;4(2):155-158
Percutaneous balloon angioplasty has been reported to be useful in the treatment of intracranial atherosclerotic arterial stenosis. However, arterial dissection with increased risk of acute closure and stroke has limited its widespread implementation. Stenting of the intracranial vasculature recently has been shown to be feasible in a variety of circumstance. However, stenting of middle cerebral artery has been limited because of difficulty with tracking stents across the carotid siphon. We report a case of successful percutaneous stenting of a symptomatic middle cerebral artery stenosis using a balloon-expandible flexible coronary stent.
Angioplasty
;
Angioplasty, Balloon
;
Constriction, Pathologic*
;
Middle Cerebral Artery*
;
Stents*
;
Stroke
7.Rescue Balloon Reposition of the Protruding Coil Loops during Endovascular Treatment of An Anterior Communicating Artery Aneurysm: A Case Report.
Hong Gee ROH ; Hyun Seung KANG ; Pyoung JEON ; Hong Sik BYUN
Neurointervention 2006;1(1):68-72
Protrusion of coil loop(s) and subsequent occlusion of the parent artery is one of the dreadful complications during endovascular coil embolization of cerebral aneurysm. Although protrusion of one or two coil loops may not cause adverse events and can be ignored in many instances, it can also compromise the parent artery in some cases with or without thrombus formation. We report a case of rescue balloon reposition of the protruding coil mass back into the aneurysm and recanalization of parent artery during embolization of the anterior communicating artery aneurysm.
Aneurysm
;
Arteries
;
Embolization, Therapeutic
;
Humans
;
Intracranial Aneurysm*
;
Parents
;
Thrombosis
8.Prevalence of Unruptured Intracranial Aneurysm on MR Angiography.
Tae Yeon JEON ; Pyoung JEON ; Keon Ha KIM
Korean Journal of Radiology 2011;12(5):547-553
OBJECTIVE: To evaluate the prevalence of incidentally found unruptured intracranial aneurysms (UIAs) on the brain MR angiography (MRA) from a community-based general hospital. MATERIALS AND METHODS: This was a prospectively collected retrospective study, carried out from January 2004 to December 2004. The subjects included 3049 persons from a community-based hospital in whom MRA was performed according to a standardized protocol in an outpatient setting. Age- and sex-specific prevalence of UIAs was calculated. The results by MRA were compared with intra-arterial digital subtraction angiography (DSA) findings. RESULTS: Unruptured intracranial aneurysms were found in 137 (5%) of the 3049 patients (M:F = 43:94; mean age, 60.2 years). The prevalence of UIAs was 5% (n = 94) in women and 4% (n = 43) in men, respectively (p = 0.2046) and showed no age-related increase. The most common site of aneurysm was at the distal internal carotid artery (n = 64, 39%), followed by the middle cerebral artery (n = 40, 24%). In total, 99% of aneurysms measured less than 12 mm, and 93% of aneurysms measured less than 7 mm. Direct comparisons between MRA and DSA were available in 70 patients with 83 UIAs; the results revealed two false positive and two false negative results. CONCLUSION: This community-hospital based study suggested a higher prevalence of UIAs observed by MRA than previously reported. These findings should be anticipated in the design and use of neuroimaging in clinical practice.
Adolescent
;
Adult
;
Aged
;
Aged, 80 and over
;
Aneurysm, Ruptured/diagnosis
;
Angiography, Digital Subtraction
;
Cerebral Angiography
;
Female
;
Humans
;
Incidental Findings
;
Intracranial Aneurysm/*diagnosis/radiography
;
*Magnetic Resonance Angiography
;
Male
;
Middle Aged
;
Young Adult
9.The Value of Preoperative MRI and Bone Scan in Percutaneous Vertebroplasty for Osteoporotic Vertebral Compression Fractures.
Se Hyuk KIM ; Wan Su LEE ; Eui Kyo SEO ; Yong Sam SHIN ; Ho Yeol ZHANG ; Pyoung JEON
Journal of Korean Neurosurgical Society 2001;30(7):907-915
OBJECTIVE: Percutaneous vertebroplasty is often complicated by the presence of multiple fractures or non-localizing pain in the patients with osteoporotic vertebral fractures. The purpose of this study is to estimate the value of preoperative radiologic studies in the localization of symptomatic vertebrae and to determine the factors which can influence on the clinical results. MATERIALS AND METHODS: We retrospectively reviewed the clinical and radiologic data of 57 vertebrae in 30 patients underwent percutaneous vertebroplasty for osteoporotic vertebral compression fractures. Inclusion criteria was severe pain(McGill-Melzack score 3, 4 or 5) associated with the acute vertebral fractures and absence of spinal nerve root or cord compression sign. Acute symptomatic vertebral fracture was determined by the presence of signal change on MR images or increased uptake on whole body bone scan. RESULTS: Pain improvement was obtained immediately in all patients and favorable result was sustained in 26 patients(86.7%) during the mean follow-up duration of 4.7 months(5 complete pain relief, 21 marked pain relief). Those who underwent vertebroplasty for all acute symptomatic vertebrae had significantly better clinical result than those who did not. Further vertebral collapse and eventual bursting fracture occurred in 1 vertebra which showed intradiskal leakage of bone cement and disruption of cortical endplate on postoperative CT scan. CONCLUSION: Preoperative MR imaging and whole body bone scan are very useful in determining the symptomatic vertebrae, especially in the patients with multiple osteoporotic vertebral fractures. To obtain favorable clinical result, the careful radiologic evaluation as well as clinical assessment is required. Control of PMMA volume seems to be the most critical point for avoiding complications.
Follow-Up Studies
;
Fractures, Compression*
;
Humans
;
Magnetic Resonance Imaging*
;
Polymethyl Methacrylate
;
Retrospective Studies
;
Spinal Nerve Roots
;
Spine
;
Tomography, X-Ray Computed
;
Vertebroplasty*
10.Facial nerve schwannomas: CT and MR findings.
Sun Yang CHUNG ; Dong Ik KIM ; Byung Hee LEE ; Pyeong Ho YOON ; Pyoung JEON ; Tae Sub CHUNG
Yonsei Medical Journal 1998;39(2):148-153
The present study was undertaken to analyze the radiologic findings of intratemporal and extratemporal schwannoma (ITS & ETS). We retrospectively reviewed the CT (9 cases), MR (3 cases) and medical records of 10 facial schwannoma patients. After classifying these into ITS and ETS, radiologic and clinical findings were analyzed. The most common clinical manifestations were facial nerve dysfunction (6/6 cases, 100%) and hearing impairment (5/6 cases, 83.3%) in ITS and parotid mass (4/4 cases, 100%) in ETS. Geniculate ganglion (GG) was the most commonly involved segment of ITS (5/6 cases, 83.5%). On CT, ITS arising in GG (4 cases) showed erosion of the petrous bone (4 cases), cochlea (3 cases), lateral semicircular canal (1 case) and ossicles (3 cases). ITS arising in the mastoid segment (1 case) showed the destruction of the jugular plate and external auditory canal wall. All three ITS in which MRI was performed showed iso- to hypointensity on T1WI, hyperintensity on T2WI and well-enhanced on post-enhanced T1WI. ETS showed various findings, but all four ETS were located in the posterolateral portion of the retromandibular vein and extended toward the stylomastoid foramen. In conclusion, ITS shows the schwannoma on MR. ETS shows various findings. However, if the tumor is located along the extratemporal facial nerve course, then facial schwannoma may be suspected.
Adult
;
Cranial Nerve Neoplasms/diagnosis*
;
Facial Nerve*
;
Female
;
Geniculate Ganglion/radiography
;
Geniculate Ganglion/pathology
;
Human
;
Magnetic Resonance Imaging*
;
Male
;
Middle Age
;
Neurilemmoma/diagnosis*
;
Tomography, X-Ray Computed*