Over 100 viruses are known to cause acute viral encephalitis in human. In order to diagnose a viral central nervous system infection, various laboratory diagnosis methods have been used. In this study, we examined 220 cerebrospinal fluid samples that were received at the Diagnostic Virology Laboratory of University Malaya Medical Centre between year 2004 to 2006, by viral isolation, pathogen specific antibody ELISA, polymerase chain reaction (PCR) and Real-Time PCR. Majority of the samples were from patients <10 years old. Out of 220 samples, 3 were positive for viral isolation, 27 for PCR (inclusive for the 3 positive for viral isolation) and 39 for pathogen specific ELISA. The total positive detection rate of this study was 30%. Herpes virus was the most important aetiologic agent, responsible for 58% of infection, followed by paramyxovirus (especially measles virus) in 26% of infection, and 14% by enterovirus. Parvovirus and flavivirus were the other common viruses. Among the herpes viruses, herpes simplex and cytomegalovirus were the most common.

Objective To evaluate the clinical effects of CT guided percutaneous aspiration and sclerotherapy in treatment of hepatic cysts.Methods Sixty three patients with single(n=41)and muttiple(n= 22)hepatic cysts were undertaken CT guided pereutaneous aspiration and sclerotherapy with injection of absolute alcohol.Results Sixty three patients underwent follow-up for 3-15 months after the operation showing effective indexes as grade 0 for 4(6.39%),gradeⅠfor 8(12.69%),gradeⅡfor 23(36.51%)and gradeⅢfor 28(44.44%)cases.The total effective rate reached 93.61%.No serious complications occurred. Conclusion Sclerosing therapy with absolute alcohol is safe,economic,simple and effective for treating hepatic cysts.(J Intervent Radiol,2007,16:850-852)

Superficial temporal artery (STA) based pedicled fascial flap plays a pivotal role in ear reconstruction for microtia patients. There is paucity of literature on the anatomy of the STA in microtia patients. The present study aimed to describe any possible anatomical variations seen in the STA of patients afflicted with microtia. Pre-operative carotid computer tomographic angiography images of patients under the microtia database of Plastic and Reconstructive Surgery Unit at a tertiary medical centre were selected and 3-dimensionally reconstructed. Measurements were made on the 3D reconstructed computed tomographic angiography images of the STA on both the sides of the microtic ear and the non-microtic ear to assess its various anatomical parameters. We managed to obtain a total of 39 computed tomographic angiography images of STAs for analysis. There was a significant difference in the number of main branches of STA between the two groups (P=0.006). The proportion of ears with 2 main branches was higher in the non-microtia group (89.5%) compared to the microtia group (45.0%). A significant difference was found in the STA diameter between the two groups (P=0.012). The mean diameter of STA in the non-microtia group was larger by 0.4 mm. Furthermore, the median angle of STA was larger on the side of the non-microtic ears compared to that of microtic ears by 24.5°, with a P-value of 0.011. The results of the study may be of clinical importance while planning and performing ear reconstructive surgeries using STA based pedicled fascial flaps.
Angiography ; Congenital Microtia* ; Ear ; Humans ; Plastics ; Temporal Arteries*

OBJECTIVES: EEG coherence could imply the connectivity between two different areas of the brain, which is known to be important in the pathophysiology of bipolar I disorder(BPD I) and schizophrenia. The authors investigated EEG coherence in patients with BPD I and schizophrenia to examine the connectivity of the neural circuit. METHODS: EEGs were recorded in 15 schizophrenia and 14 bipolar disorder patients, and 14 age-matched normal control subjects from 16 electrodes with linked-ear reference. Spectral parameters and coherence were calculated for the alpha bandwidth(8-13Hz) by a multi-channel autoregressive model using 20 artifact-free 2-seconds epochs and the differences were compared among three groups by two different statistical methods; F-test and Kruskal-Wallis test. Furthermore, when there were significant differences among three groups, Scheffe's multiple comparison tests were provided and Jonckheere-Terpstra tests for the ordered alternative were given. RESULTS: In the intra-hemispheric comparison, left frontal coherence was increased in order of control, BPD I and schizophrenia. In the inter-hemispheric comparison, 1) inter-prefrontal coherence in BPD I was significantly higher than in normal controls, and 2) inter-prefrontal coherence in schizophrenia was significantly lower than in controls. CONCLUSION: These results suggest that 1) both schizophrenia and BPD I are diseases having the abnormality of neural circuit connectivity in both frontal and prefrontal lobes, and 2) the abnormality is more severe in schizophrenia than in BPD I. Furthermore, the data support that a common pathogenetic process may reside in both schizophrenia and BPD I.
Bipolar Disorder* ; Brain ; Electrodes ; Electroencephalography* ; Humans ; Schizophrenia*

PURPOSE: To evaluate high-resolution CT (HRCT) findings of scrub typhus. MATERIALS AND METHODS: We retrospectively reviewed the HRCT scans of 26 serologically confirmed scrub typhus patients. One underwent follow-up HRCT scanning. RESULTS: Twenty-three (88.5%) of the 26 patients showed abnormal findings. All 23 had lung parenchymal lesions; a small amount of pleural effusion was seen in 11 patients, and lymphadenopathy in six. The predominant parenchymal lesion was thickening of interlobular septae and the axial and intralobular interstitium (n=16). Most lesions were located in both lower lung zones. Other findings were ground-glass attenuation (n=11) and focal parenchymal consolidation (n=8). In one patient, parenchymal lesions were resolved on follow-up HRCT scanning. CONCLUSION: HRCT findings of interstitial thickening, abnormally increased parenchymal attenuation, pleural effusion and lymphadenopathy with typical clinical symptoms were diagnostic of scrub typhus.
Follow-Up Studies ; Humans ; Lung ; Lymphatic Diseases ; Pleural Effusion ; Retrospective Studies ; Scrub Typhus*

PURPOSE: To evaluate therapeutic effect according to embolic materials, and the usefulness of transcatheter arterial embolization (TAE) in the treatment of pseudoaneurysm and aneurysm. MATERIALS AND METHODS: We evaluated 12 patients who since 1987 had suffered arterial pseudoaneurysm or aneurysm. Ten were males and two were females, and their ages ranged from 10 months to 67 years (mean 34 years). The arteries involved were the superficial temporal (n=3), the renal (n=3), the hepatic (n=2), the gastroduodenal (n=2), the persistent sciatic (n=1), and the superior gluteal artery (n=1). All patients underwent diagnostic arteriography and TAE with gelfoam particles, coil, and detachable balloon, or a combination of these. Follow-up, of between three and 74 months duration, involved computed tomography, angiography, ultrasound, and the evaluation of clinical symptoms. RESULTS: All patients were treated successfully with TAE and there was no recurrence during the follow-up. Seven patients (58.3%) were treated only coils; the site of their aneurysm or pseudoaneurysm was the superficial temporal (n=2), the renal (n=2), the gastroduodenal (n=2), or the superior gluteal artery (n=1). Four patients (33.3%) with a small pseudoaneuysm arising from the distal branch of a small artery-the hepatic (n=2), the superficial temporal (n=1), or the renal (n=1)-were treated with gelfoam particles, and a pseudoaneurysm of the hepatic artery too small for the insertion of a coil was embolized completely with gelfoam particles. A detachable balloon was used in one case with a huge pseudoaneurysm arising from the persistent sciatic artery, in which embolization with a large coil was not effective. CONCLUSION: TAE is safe and effective in the treatment of arterial pseudoaneurysm and aneurysm. Coil was the preferred material, but for a small pseudoaneurysm arising from the distal branch of a small artery, gelfoam was preferred . For the embolization of a huge pseudoaneurysm, a adtachable balloon was useful.
Aneurysm* ; Aneurysm, False* ; Angiography ; Arteries ; Female ; Follow-Up Studies ; Gelatin Sponge, Absorbable ; Hepatic Artery ; Humans ; Male ; Recurrence ; Ultrasonography

Background: Tuberculous meningitis is a life-threatening manifestation resulting from infection by Mycobacterium tuberculosis, especially in the developing countries. The molecular aspects of pathogenesis of tuberculous meningitis remain poorly understood. We evaluated the correlation of cerebrospinal fluid (CSF) and serum cytokine levels with the clinical outcome of 15 HIV-negative patients with tuberculous meningitis. We also assessed the association of CSF and serum cytokines with neuroimaging of brain findings in the patients. Methods: The prospective longitudinal study was conducted at the University Malaya Medical Centre between 2012 and 2014. Neuroimaging of the brain was performed and the findings of leptomeningeal enhancement, hydrocephalus, tuberculoma, infarcts and vasculopathy were recorded. The CSF and serum specimens were analyzed for IL-1ß, IL-8, IL-10, IL-18, IP-10, IFN-γ, MCP-1, TGF-ß, VEGF, TNF- α, IL-18BPa and MMP-9. The clinical outcome was graded at 3 months based on Modified Rankin scale (mRS). Results: On admission and at one month of anti-tuberculosis treatment, the CSF levels of IL-8, IL-1β, IP-10, IFN-γ and VEGF were elevated in all of the patients. Serum IP-10, MCP-1, IL-1β and IL-8 levels were increased on admission and at one month of anti-tuberculosis treatment. There were statistically significant differences between good and poor outcome (mRS at 3 months) for CSF IFN-γ (p=0.033), CSF IL-10 (p=0.033) and serum VEGF (p=0.033) at one month of treatment. None of the patients showed any association between CSF and serum cytokines on admission and at one month of anti-tuberculosis treatment with neuro-radiological findings. Conclusion: The CSF cytokine levels were not related to TBM disease severity on admission, and changes on MRI/CT scans. CSF levels of IFN-γ and IL-10 at one month of anti-tuberculosis treatment were associated with clinical outcome at 3 months. CSF cytokine levels on admission were not associated with the clinical outcome.
Tuberculosis, Meningeal

The incidence of neurenteric cyst (NC) is rare amongst spine tumors. It is most often asymptomatic but may present with sensory and motor symptoms. When associated with thoracic vertebra fusion it is not reported before, this complicates the placement of pedicle screw during posterior instrumentation. Herein, we report a case of thoracic spinal neurenteric cyst in a 40-year-old man that presents with chronic back pain, left lower limb weakness and numbness. Elective excision of NC over T6-T7 with laminectomy and multilevel posterior instrumentation was successfully performed with significant improvement of the symptoms. Neurenteric cyst is a rare spinal cord lesion which may cause permanent neurological sequalae. Complete surgical excision with spine fixation in this case provides good long-term outcome.

BACKGROUND: Pulmonary artery banding (PAB)in the functional univentricular heart (UVH)is a palliative procedure for staging toward the Fontan procedure;however,it is known to be a risk factor. MATERIALS AND METHOD: The records of all 37 patients with functional UVHs who underwent surgical palliation using PAB between September 1989 and August 1999 were reviewed retrospectively.We investigated the aortic arch obstruction,the development and progression of subaortic stenosis after PAB,and risk factor of mortality according to surgical method. RESULT: In 37 neonates and infants with single ventricular physiology,aortic arch obstruction was combined in 7.There were 6 early deaths (16.2%)after PAB and 3 late deaths (8.1%)after Fontan operation.The actuarial overall survival including early mortality at 3 and 5 years were 8 0 .7+/-6.6%,72.2 +/-8.2% respectively. Among 31 patients who survived PAB,27 patients (87.1%)could become candidates for Fontan operation;22 patients(71.0%)completed Fontan operation with 3 deaths and 5 were waiting bidirectional cavopulmonary shunt(BCPS)or Fontan operation (follow-up mean 4.5 year,minimal 2 year). Subaortic stenosis developed in 8 patients after PAB (8/29,27.6%);3 cases in the patients without arch anomaly (3/22,13.6%)and 5 in those with arch anomal y (5/7,71.4%).The subaortic stenosis was managed with Damus-Kaye-Stansel procedure (DKS)in 6 patients without operative mortality and conal septum resection in 2 without long-term survivor. Analysis of risk factors established that aortic arch obstruction was strongly associated with subaortic stenosis (p<0.001).The only risk factor of late mortality was Fontan procedure without staged palliation by BCPS (p=0.001). CONCLUSION: PAB is effective as an initial palliative step in functional UVH.And the high risk group of patients with aortic obstruction can undergo effective short-term PAB as an initial palliative step,with subsequent DKS for subaortic stenosis.This strategy,initial PAB and careful surveillance,and early relief of subaortic stenosis can maintain acceptable anatomy and hemodynamics for later Fontan procedures.
Aorta, Thoracic ; Constriction, Pathologic ; Fontan Procedure ; Heart* ; Hemodynamics ; Humans ; Infant ; Infant, Newborn ; Mortality ; Pulmonary Artery* ; Risk Factors ; Survivors

The effects of deep hypothermia and circulatory arrest during aortic arch reconstruction are associated with potential neurologic and myocardial injury. We describe a surgical technique that two patients underwent a modified Norwood procedure without circulatory arrest and myocardial ischemia. One was 13-day-old female patient, weighing 3.1kg, having a variant of hypoplastic left heart syndrome and another was 38-day-old male patient, weighing 3.4 kg, diagnosed Taussig-Bing anomaly with severe aortic arch hypoplasia, coarctation of the aorta, and subaortic stenosis. The arterial cannula was inserted in innominate artery directly. During Norwood reconstruction, regional high-flow perfusion into the inominate artery and coronary perfusion were maintained and there were no neurologic, cardiac, and renal complications in two patients. This technique may help protect the brain and myocardium from ischemic injury in patients with hypoplastic left heart syndrome or other arch anomalies including coarctation or interruption.
Aorta, Thoracic ; Aortic Coarctation ; Arteries ; Brachiocephalic Trunk ; Brain ; Catheterization, Peripheral ; Catheters ; Constriction, Pathologic ; Double Outlet Right Ventricle ; Female ; Humans ; Hypoplastic Left Heart Syndrome ; Hypothermia ; Male ; Myocardial Ischemia* ; Myocardium ; Norwood Procedures* ; Perfusion