Homograft has been the conduit of choice in various types of congenital malformations which require right ventricular outflow tract reconstruction. However it has been proven to be less than ideal in young age group because of early failure of the conduite due to valve dysfunction and calcification. Furthermore limitation of availability of homograft particularly small sized conduits for neonates and infants is the most serious problem. A 19 month old female patient with pulmonary atresia and ventricular septal defect was operated on with a bovine jugular venous valved conduit as an alternative to the homograft for her right ventricular outflow tract reconstruction. Postoperative hemodynamic performance of the conduit was excellent without pressure gradient or valve regurgitation. With this early result bovine jugular venous valved conduit seems to be another excellent conduit because of good hemodynamics and size availability but long term follow up is necessary.
Allografts ; Female ; Follow-Up Studies ; Heart Septal Defects, Ventricular ; Hemodynamics ; Humans ; Infant ; Infant, Newborn ; Pulmonary Atresia

Dyspnea or dysphagia after occipitocervical fusion is well-known complications. It could be occurred when occipitocervical fusion is performed with the neck flexion position which leads to the narrowing of the airway and retropharyngeal space. However, we experienced a case of dyspnea and dysphagia after posterior C1-C2 fusion. A 68-year-old male showed no evidence of occipitocervical instability in preoperative studies. He complained of progressive dyspnea and dysphagia after C1-2 fusion and follow-up computed tomography (CT) and magnetic resonance (MRI) showed relatively narrow spinal canal at the level of C1-2 compared to preoperative studies and serial plain radiographic studies decreased occipitocervical (O-C2) angle gradually. Despite of conservative treatment, his symptom was not improved. So we did C1 posterior arch decompression and extended fusion to the occiput with neck extension position. Dyspnea and dysphagia gradually improved after the surgery and complete recovery was observed within a month. Though we did not know the causes of dyspnea and dysphagia exactly, two mechanisms were possible one was cord irritation due to anterior migration of C1 posterior arch after C1-2 fusion. The other was alar ligament disruption with microinstability between the occiput and atlas. We present the case of dyspnea and dysphagia after posterior C1-2 fusion.
Aged ; Decompression ; Deglutition Disorders ; Dyspnea ; Follow-Up Studies ; Humans ; Ligaments ; Magnetic Resonance Spectroscopy ; Male ; Neck ; Spinal Canal ; Succinates

Chronic subdural hematoma (SDH) is a well-known disease entity and is traditionally managed with surgery. However, when associated with spontaneous intracranial hypotension (SIH), the treatment strategy ought to be modified, as classical treatment could lead to unwanted consequences. A 59-year-old man presented with a case of SIH that manifested as a bilateral chronic SDH. He developed fatal extensive pneumocephalus and SDH re-accumulation as a complication of burr-hole drainage. Despite application of an epidural blood patch, the spinal cerebrospinal fluid leak continued, which required open spinal surgery. Chronic SDH management should not be overlooked, especially if the exact cause has not been determined. When chronic SDH assumed to be associated with SIH, the neurosurgeon should determine the exact cause of SIH in order to effectively correct the cause.
Blood Patch, Epidural ; Cerebrospinal Fluid ; Drainage* ; Hematoma, Subdural, Chronic* ; Humans ; Intracranial Hypotension* ; Middle Aged ; Pneumocephalus*

OBJECTIVE: Gamma knife radiosurgery (GKRS) is the least invasive surgical option for patients with trigeminal neuralgia (TN). However, the indications and long term outcomes of GKRS are still controversial. Additionally, a series with uniform long-term follow-up data for all patients has been lacking. In the present study, the authors analyzed long-term outcomes in a series of patients with TN who underwent a single GKRS treatment followed by a minimum follow-up of 60 months. METHODS: From 1994 to 2009, 40 consecutive patients with typical, intractable TN received GKRS. Among these, 22 patients were followed for >60 months. The mean maximum radiation dose was 77.1 Gy (65.2-83.6 Gy), and the 4 mm collimator was used to target the radiation to the root entry zone. RESULTS: The mean age was 61.5 years (25-84 years). The mean follow-up period was 92.2 months (60-144 months). According to the pain intensity scale in the last follow-up, 6 cases were grades I-II (pain-free with or without medication; 27.3%) and 7 cases were grade IV-V (<50% pain relief with medication or no pain relief; 31.8%). There was 1 case (facial dysesthesia) with post-operative complications (4.54%). CONCLUSION: The long-term results of GKRS for TN are not as satisfactory as those of microvascular decompression and other conventional modalities, but GKRS is a safe, effective and minimally invasive technique which might be considered a first-line therapy for a limited group of patients for whom a more invasive kind of treatment is unsuitable.
Follow-Up Studies ; Humans ; Microvascular Decompression Surgery ; Radiosurgery ; Trigeminal Neuralgia

PURPOSE: To analyze the clinical features of peripheral neuropathy in Korean children. METHODS: A total of 62 children with acute flaccid paralysis, longstanding weakness of extremities, or abnormal electrophysiological studies, suggestive of peripheral neuropathy, were evaluated retrospectively from the hospital records. The subjects were recruited at the pediatric neurology and endocrine clinic, Kyungpook National University Hospital from 2000 to 2002 and they all went through neurological examination and electrophysiological studies with or without nerve biopsy. RESULTS: Thirty nine children(Male 24:Female 15; Mean age 7.6+/-4.3 years) were found to have clinical peripheral neuropathy. Inflammatory neuropathy(5 children with Guillain Barre syndrome, 1 children with chronic inflammatory demyelinating polyneuropathy, 12 children with Bell's palsy; 46%) was the most common, followed by hereditary neuropathy(4 children, 10%), Chemotherapy induced neuropathy(3 children, 8%), metachromatic leukodystrophy(2 children, 5%), trauma(2 children, 5%), diabetic neuropathy(1 children, 3%) and so on. Thirty two children had motor neuropathy(82%), six children had combined motor and sensory neuropathy(15%), two had pure sensory(5%), but nobody had autonomic neuropathy. With respect to the type of involvement, polyneuropathies constitute 59%(23 children), mononeuropathy simplex accounted for 38%(15 children), mononeuropathy multiplex was found in 3%(1 child). Based on electrophysiological studies and biopsy results, demyelinating neuropathy was seen in 22 children(56%), axonal neuropathy in 12 children(31%), combined neuropathy in 5 children(13%). Eighteen children(46%) were completely or almost completely recovered from the illness. CONCLUSION: Inflammatory neuropathy was the most common among the acquired neuropathies and hereditary motor sensory neuropathy was the most common among the genetic neuropathies. Treatable neuropathies took up 46%. Potentially preventable neuropathies accounted for 36%. Early diagnosis and early intervention may have significant impacts on the prognosis of peripheral neuropathy in children.
Axons ; Bell Palsy ; Biopsy ; Child* ; Drug Therapy ; Early Diagnosis ; Early Intervention (Education) ; Extremities ; Guillain-Barre Syndrome ; Gyeongsangbuk-do ; Hospital Records ; Humans ; Mononeuropathies ; Neurologic Examination ; Neurology ; Paralysis ; Peripheral Nervous System Diseases* ; Polyneuropathies ; Prognosis ; Retrospective Studies

OBJECTIVE: Distal anterior cerebral artery(DACA) aneurysms are relatively uncommon, and have special aspects. We discuss clinical features and surgical results of DACA aneurysms with review of literatures. METHODS: Among 725 cases of intracranial aneurysms operated from 1989 to 2001 in our hospital, 38 cases of DACA aneurysms were studied retrospectively. The clinical presentations, neurological findings, operative approaches and outcome were analyzed. RESULTS: The incidence of the DACA aneurysm was 5.2% of total 725 aneurysms. Multiple aneurysms were found in 10 patients. Among the 38 patients, 15 were men and 23 were women. The mean age was 49.8 years. 2 aneurysms were located at frontobasal artery, 5 at the origin of frontopolar artery, 28 at the bifurcation between callosomarginal and pericallosal artery, 3 at the origin of pericallosal artery. 32 patients had good outcomes after surgery. 4 patients remained disabled, and 2 patients died. Postoperative complications were vasospasm, cerebral infarction, intracranial hemorrhage, pneumonia. CONCLUSION: The incidence of DACA aneurysm was relatively rare than other location. We think that unilateral interhemispheric approach is useful for aneurysm in most DACA, and approaches should be chosen according to the location of aneurysm and presence or absence of multiple aneurysms. The Glasgow Outcome Scale score was good in patient with low Hunt & Hess grade preoperatively. And early operation can reduce the rate of rebleeding and improve outcome of DACA aneurysms.
Aneurysm ; Anterior Cerebral Artery* ; Arteries ; Cerebral Arteries ; Female ; Glasgow Outcome Scale ; Humans ; Incidence ; Infarction ; Intracranial Aneurysm* ; Intracranial Hemorrhages ; Male ; Pneumonia ; Postoperative Complications ; Retrospective Studies ; Subarachnoid Hemorrhage ; Vasospasm, Intracranial

Diploic arteriovenous fistulas (AVFs) or intraosseous dural AVFs are rare arteriovenous shunts. A diploic AVF is formed between a meningeal artery and an intraosseous diploic vein or the transosseous emissary vein, and the nidus is located exclusively within the bone. Currently, endovascular embolization with a transvenous approach is considered the treatment of choice for most dural AVFs. However, in the absence of an accessible venous channel, an alternate treatment approach should be considered. Herein, we report a case of a diploic AVF that was treated using embolization with transosseous direct cannulation.

Objective: : Preoperative prediction of the arachnoid membrane descent in pituitary surgery is useful for achieving gross total removal and avoiding cerebrospinal fluid leakage resulting from tearing of the arachnoid membrane in the chiasmatic cistern. In this study, we analyzed the patterns of arachnoid membrane descent during or after pituitary tumor surgery and identified the factors related to this descent. Methods: : Analysis was restricted to pituitary macroadenomas not extending into the third ventricle or over the internal carotid artery. To minimize confounding factors, patients who underwent revision surgery, those who had a torn arachnoid during operation or small medial diaphragma sellae (DS) opening, and subtotal resections were excluded. We enrolled 41 consecutive patients in this retrospective analysis. The degree of arachnoid descent was categorized using intraoperative videos. Preoperative magnetic resonance findings, including tumor height, suprasellar extension, and variables including DS area and medial opening size, tumor composition, and displacement of the pituitary stalk and gland were evaluated to determine their correlations with arachnoid membrane descent. Results: : Arachnoid membrane descent was significantly correlated with DS area and medial opening size. Based on T2-weighted images (T2WI) magnetic resonance (MR) images, tumor composition was significantly associated with arachnoid membrane descent. Other factors were not significantly correlated with arachnoid membrane descent. Conclusion : T2WI of tumor composition and preoperative MR imaging of DS area and medial opening provided valuable information regarding arachnoid membrane descent. These parameters may serve as fundamental measures to facilitate complete resection of pituitary macroadenomas.

The work was done to study immunogenetic peculiarities of neuroinflammatory diseases among Korean children. A total of 13 children with neuroinflammatory diseases (8 males and 5 females; mean age 4.6+/-2.6 yr) were consecutively recruited. Genomic typing was performed on their HLA DRB/HLA DQB genes using PCR-SSOP/ SSP techniques with gel immunoelectrophoresis. The frequencies of HLA-DR1* 15 in children with acute disseminated encephalomyelitis (ADEM) (31%) and DQB1* 06 in other neuroinflammatory diseases (38%) were significantly increased compared with control subjects. The frequencies of HLA-DRB3*0202 (100%), HLA-DRB1*1302 (67%), HLA-DRB3*0301 (67%), and HLA-DQB1*0301 (67%) were significantly increased in children with multiple sclerosis and the frequencies of HLA-DRB1*1501 (40%) and HLA-DRB5*0101 (40%) were significantly increased in children with ADEM. HLA-DRB1*1401, HLA- DRB3*0202, and HLA-DQB1*0502 were found in children with acute necrotizing encephalopathy. In conclusion, HLA-DR1*15 and DQB1*06 may be involved in susceptibility to inflammation in Korean children. The frequencies of HLA-DRB1*1501, HLA-DRB5*0101, HLA-DRB3*0301, and HLADQB1* 0602 were not as high in Korean children with multiple sclerosis as in western children. However, HLA-DRB3*0202 was seen in all children with multiple sclerosis. Our data may provide further evidence that the immunogenetic background of neuroinflammatory diseases in Korean is distinctly different from the ones in western countries. Further studies are necessary to confirm this finding.
Alleles ; Child ; Child, Preschool ; Electrophoresis ; Encephalomyelitis/genetics ; Female ; Genes, MHC Class II/*genetics ; *Genetic Predisposition to Disease ; Genotype ; Human ; Inflammation/*genetics ; Male ; Multiple Sclerosis/genetics ; Neurons/*pathology ; Polymerase Chain Reaction ; Polymorphism, Single-Stranded Conformational ; Support, Non-U.S. Gov't

BACKGROUND AND OBJECTIVES: It has been reported that strut thickness is associated with the occurrence of in-stent restenosis. This prospective, multicenter, single-arm study was designed to evaluate the safety and efficacy of the ArthosPico stent manufactured with thin-strut cobalt-chromium alloy steel for simple de novo coronary lesions. SUBJECTS AND METHODS: A total of 150 coronary lesions that were > or =3.0 mm in diameter and < or =20 mm in length, which could be covered by a single stent, were enrolled. Clopidogrel was used for 1 month. RESULTS: Acute coronary syndrome was involved in 60.7% of patients. The right coronary artery (50.0%) was the most common target vessel. All stents were successfully deployed at the target lesions. Reference vessel diameter was 3.1+/-0.5 mm and lesion length was 13.6+/-4.6 mm. Minimal lumen diameter was increased from 1.03+/-0.48 to 3.04+/-0.49 mm after the procedure. Follow-up angiography was obtained in 117 lesions (78%). Binary restenosis was documented in 12.0% of stented segments and in 13.7% of analytic segments. Late luminal loss was found to be 0.78+/-0.75 mm in stented segments and 0.59+/-0.74 mm in analytic segments. During 7.0+/-2.8 months follow-up, cardiac death or non-fatal myocardial infarction occurred in 2 (1.3%) and 2 (1.3%) patients, respectively. Target lesion revascularization was performed in 11 (7.3%) patients. CONCLUSION: The cobalt-chromium alloy ArthosPico stent for relatively simple coronary lesions showed favorable acute and long-term outcomes in terms of very low incidence of death or myocardial infarction and a single digit rate of target lesion revascularization.
Acute Coronary Syndrome ; Alloys* ; Angiography ; Coronary Artery Disease ; Coronary Vessels ; Death ; Follow-Up Studies ; Humans ; Incidence ; Myocardial Infarction ; Phenobarbital ; Prospective Studies ; Steel ; Stents*