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Displaying publications 21 - 27 of 27 in total

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Neuroimaging in refractory epilepsy. Current practice and evolving trends

Ramli N, Rahmat K, Lim KS, Tan CT

Eur J Radiol, 2015 Sep;84(9):1791-800.
PMID: 26187861 DOI: 10.1016/j.ejrad.2015.03.024

Identification of the epileptogenic zone is of paramount importance in refractory epilepsy as the success of surgical treatment depends on complete resection of the epileptogenic zone. Imaging plays an important role in the locating and defining anatomic epileptogenic abnormalities in patients with medically refractory epilepsy. The aim of this article is to present an overview of the current MRI sequences used in epilepsy imaging with special emphasis of lesion seen in our practices. Optimisation of epilepsy imaging protocols are addressed and current trends in functional MRI sequences including MR spectroscopy, diffusion tensor imaging and fusion MR with PET and SPECT are discussed.

Matched MeSH terms: Tomography, Emission-Computed, Single-Photon
Therapeutic angiogenesis for severe ischemic heart diseases by autologous bone marrow cells transplantation

Hattori R, Matsubara H

Mol Cell Biochem, 2004 Sep;264(1-2):151-5.
PMID: 15544044

Conventional therapies for severe ischemic heart disease are limited in applicability. While several angiogenesis researches have shown novel efficacy, safety and feasibility for clinical use, recently we have started the clinical trial of a sole cell therapy using autologous bone marrow mononuclear cells transplantation targeted into ischemic hibernating myocardium. Here, we review the background of bone marrow cell research and introduce therapeutic angiogenesis for severe ischemic heart disease by autologous bone marrow cells transplantation.

Matched MeSH terms: Tomography, Emission-Computed, Single-Photon
Fulltext Femoral overgrowth following plate fixation of the fractured femur in children

Sulaiman AR, Joehaimy J, Iskandar MA, Anwar Hau M, Ezane AM, Faisham WI

Singapore Med J, 2006 Aug;47(8):684-7.
PMID: 16865208

The purpose of this study is to determine the overgrowth phenomenon of the affected femur following plate fixation of femoral fractures in children.

Matched MeSH terms: Tomography, Emission-Computed
Analysis of pediatric subdural empyema outcome in relation to computerized tomography brain scan

Md Ralib AR, Ariff AR, Shuaib IL, Naing NN, George PJ, Abdullah JM

Southeast Asian J. Trop. Med. Public Health, 2004 Jun;35(2):434-44.
PMID: 15691152

A cross-sectional study was conducted to predict the outcome in patients with subdural empyema, using initial and post-treatment CT scan brain parameters. Data collection was done on those children who were diagnosed to have subdural empyema by CT scan of the brain with contrast, who underwent burrhole evacuation, from February 2000 until April 2002. Numerous factors, such as coma or loss of unconsciousness at diagnosis, age, types of antibiotic, microbiology, extension of empyema, associated cerebral infarction and ventriculitis, were analyzed. Poor prognosis was associated with loss of consciousness, and hypodensity by CT scan at presentation (p < 0.005). Patients with an extensive subdural empyema will have a good outcome if they are treated early and aggressively with antibiotics and burrhole evacuation.

Matched MeSH terms: Tomography, Emission-Computed
Periodic lateralized epileptiform discharges (PLEDs) in cerebral lupus correlated with white-matter lesions in brain MRI and reduced cerebral blood flow in SPECT

Aye SM, Lim KS, Ramli NM, Tan CT

Lupus, 2013 Apr;22(5):510-4.
PMID: 23358870 DOI: 10.1177/0961203312474705

This is a case report on an uncommon correlation between periodic lateralized epileptiform discharges (PLEDs) and white-matter lesions in cerebral lupus, and with a reduced cerebral blood flow (CBF) in single-photon emission computed tomography (SPECT). A 47-year-old woman with a long-term history of systemic lupus erythematosus (SLE) presented with a seizure followed by frontal lobe dysfunction clinically. An electroencephalogram (EEG) showed bilateral independent PLEDs in the frontal region. A magnetic resonance image of the brain showed white-matter changes in the frontal periventricular region. Cerebral angiogram did not reveal any evidence of vasculitis. A cerebral SPECT with tracer injected during the EEG showing PLEDs showed a reduction in CBF in the frontal regions. Clinical recovery was observed with intravenous immunoglobulin. This case shows that PLEDs can be seen with white-matter changes in SLE.

Matched MeSH terms: Tomography, Emission-Computed, Single-Photon
Relapsed and late-onset Nipah encephalitis

Tan CT, Goh KJ, Wong KT, Sarji SA, Chua KB, Chew NK, et al.

Ann Neurol, 2002 Jun;51(6):703-8.
PMID: 12112075

An outbreak of infection with the Nipah virus, a novel paramyxovirus, occurred among pig farmers between September 1998 and June 1999 in Malaysia, involving 265 patients with 105 fatalities. This is a follow-up study 24 months after the outbreak. Twelve survivors (7.5%) of acute encephalitis had recurrent neurological disease (relapsed encephalitis). Of those who initially had acute nonencephalitic or asymptomatic infection, 10 patients (3.4%) had late-onset encephalitis. The mean interval between the first neurological episode and the time of initial infection was 8.4 months. Three patients had a second neurological episode. The onset of the relapsed or late-onset encephalitis was usually acute. Common clinical features were fever, headache, seizures, and focal neurological signs. Four of the 22 relapsed and late-onset encephalitis patients (18%) died. Magnetic resonance imaging typically showed patchy areas of confluent cortical lesions. Serial single-photon emission computed tomography showed the evolution of focal hyperperfusion to hypoperfusion in the corresponding areas. Necropsy of 2 patients showed changes of focal encephalitis with positive immunolocalization for Nipah virus antigens but no evidence of perivenous demyelination. We concluded that a unique relapsing and remitting encephalitis or late-onset encephalitis may result as a complication of persistent Nipah virus infection in the central nervous system.

Matched MeSH terms: Tomography, Emission-Computed, Single-Photon
Fulltext Extracorporeal shockwave myocardial therapy is efficacious in improving symptoms in patients with refractory angina pectoris--a multicenter study

Prasad M, Wan Ahmad WA, Sukmawan R, Magsombol EB, Cassar A, Vinshtok Y, et al.

Coron Artery Dis, 2015 May;26(3):194-200.
PMID: 25734606 DOI: 10.1097/MCA.0000000000000218

OBJECTIVE: Medically refractory angina remains a significant health concern despite major advances in revascularization techniques and emerging medical therapies. We aimed to determine the safety and efficacy of extracorporeal shockwave myocardial therapy (ESMT) in managing angina pectoris.
METHODS: A single-arm multicenter prospective study was designed aiming to determine the safety and efficacy of ESMT. Patients of functional Canadian Cardiovascular Society class II-IV, despite stable and optimal medical management, with documented myocardial segments with reversible ischemia and/or hibernation on the basis of echocardiography/single-photon emission computerized tomography (SPECT) were enrolled from 2010 to 2012. A total of 111 patients were enrolled, 33 from Indonesia, 21 from Malaysia, and 57 from Philippines. Patients underwent nine cycles of ESMT over 9 weeks. Patients were followed up for 3-6 months after ESMT treatment. During follow-up, patients were subjected to clinical evaluation, the Seattle Angina Questionnaire, assessment of nitrate intake, the 6-min walk test, echocardiography, and SPECT.
RESULTS: The mean age of the population was 62.9±10.9 years. The summed difference score on pharmacologically induced stress SPECT improved from 9.53±17.87 at baseline to 7.77±11.83 at follow-up (P=0.0086). Improvement in the total Seattle Angina Questionnaire score was seen in 83% of patients (P<0.0001). Sublingual nitroglycerin use significantly decreased (1.14±1.01 tablets per week at baseline to 0.52±0.68 tablets per week at follow-up; P=0.0215). There were no changes in left ventricular function on echocardiography (0.33±9.97, P=0.93). The Canadian Cardiovascular Society score improved in 74.1% of patients.
CONCLUSION: This multicenter prospective trial demonstrated that ESMT is both a safe and an efficacious means of managing medically refractory angina.

Matched MeSH terms: Tomography, Emission-Computed, Single-Photon