2.Paediatric middle aortic syndrome with endovascular treatment in East Malaysia
Ong Guang HONG ; Benjamin Leong Dak Keong
The Medical Journal of Malaysia 2018;73(1):57-59
Middle-aortic syndrome is a surgically curable cause ofchildhood hypertension. Open surgery is traditionallyoffered but with the advance of medical technology,endovascular approached is available in many country.Failure to control BP in open surgery is as low as 4.1%compares to 13% in endovascular approaches. However,mortality is 4% in open surgery almost 2 times higher than2.3% in endovascular approach. This article presents a caseof 10 years old child treated successfully withoutcomplication with endovascular balloon dilatation, as a firstcase of such disease in East Malaysia.
3.Asian adaptation and validation of an English version of the multiple sclerosis international quality of life questionnaire (MusiQoL).
Julian THUMBOO ; Alvin SEAH ; Chong Tin TAN ; Bhim S SINGHAL ; Benjamin ONG
Annals of the Academy of Medicine, Singapore 2011;40(2):67-73
INTRODUCTIONThe Multiple Sclerosis International Quality of Life questionnaire (MusiQoL) is a self-administered, multi-dimensional, patient-based health-related quality of life (HRQoL) instrument. With increasing prevalence of multiple sclerosis (MS) in Asian countries, a valid tool to assess HRQoL in those patients is needed. The aim of this study was to evaluate patient acceptability, content validity and psychometric properties of an Asian version of the English MusiQoL in Singapore, Malaysia and India.
MATERIALS AND METHODSEnglish speaking patients older than 18 years of age with a defi nite diagnosis of MS were included. The self-administered survey material included the adapted HRQoL questionnaire, a validated generic HRQoL questionnaire: the short-form 36 (SF-36), as well as a checklist of 14 symptoms. We assessed the internal and external validity of the adapted MusiQoL.
RESULTSA total of 81 patients with MS were included in the study. The questionnaire was generally well accepted. In the samples from Malaysia and Singapore, all scales exhibited good internal consistency (Cronbach's alpha >0.70). Correlation to SF-36 was generally good, demonstrating high construct validity (P <0.001) in some aspects of the MusiQoL.
CONCLUSIONThe Asian adaptation of the English version of the MusiQoL in evaluating HRQoL seems to be a valid, reliable tool with adequate patient acceptability and internal consistency.
Activities of Daily Living ; Asia ; Female ; Health Surveys ; Humans ; India ; Language ; Malaysia ; Male ; Multiple Sclerosis ; drug therapy ; psychology ; Outcome Assessment (Health Care) ; Psychometrics ; standards ; Quality of Life ; psychology ; Singapore ; Statistics, Nonparametric ; Surveys and Questionnaires
5.Effect of location of out-of-hospital cardiac arrest on survival outcomes.
E Shaun GOH ; Benjamin LIANG ; Stephanie FOOK-CHONG ; Nur SHAHIDAH ; Swee Sung SOON ; Susan YAP ; Benjamin LEONG ; Han Nee GAN ; David FOO ; Lai Peng THAM ; Rabind CHARLES ; Marcus E H ONG
Annals of the Academy of Medicine, Singapore 2013;42(9):437-444
INTRODUCTIONThis study aims to study how the effect of the location of patient collapses from cardiac arrest, in the residential and non-residential areas within Singapore, relates to certain survival outcomes.
MATERIALS AND METHODSA retrospective cohort study of data were done from the Cardiac Arrest and Resuscitation Epidemiology (CARE) project. Out-of- hospital cardiac arrest (OHCA) data from October 2001 to October 2004 (CARE) were used. All patients with OHCA as confirmed by the absence of a pulse, unresponsiveness and apnoea were included. All events had occurred in Singapore. Analysis was performed and expressed in terms of the odds ratio (OR) and the corresponding 95% confidence interval (CI).
RESULTSA total of 2375 cases were used for this analysis. Outcomes for OHCA in residential areas were poorer than in non-residential areas-1638 (68.9%) patients collapsed in residential areas, and 14 (0.9%) survived to discharge. This was significantly less than the 2.7% of patients who survived after collapsing in a non-residential area (OR 0.31 [0.16 - 0.62]). Multivariate logistic regression analysis showed that location alone had no independent effect on survival (adjusted OR 1.13 [0.32 - 4.05]); instead, underlying factors such as bystander CPR (OR 3.67 [1.13 - 11.97]) and initial shockable rhythms (OR 6.78 [1.95 - 23.53]) gave rise to better outcomes.
CONCLUSIONEfforts to improve survival from OHCA in residential areas should include increasing CPR by family members, and reducing ambulance response times.
Adult ; Aged ; Aged, 80 and over ; Ambulances ; Cardiopulmonary Resuscitation ; statistics & numerical data ; Cohort Studies ; Emergency Medical Services ; statistics & numerical data ; Female ; Geography ; Humans ; Logistic Models ; Male ; Middle Aged ; Multivariate Analysis ; Odds Ratio ; Out-of-Hospital Cardiac Arrest ; mortality ; Residence Characteristics ; statistics & numerical data ; Retrospective Studies ; Singapore ; epidemiology ; Time-to-Treatment ; statistics & numerical data ; Treatment Outcome
6.Validation of transcranial Doppler with CT angiography in cerebral ischaemia: a preliminary pilot study in Singapore.
Rahul RATHAKRISHNAN ; Yeh I BERNE ; Keng K QUEK ; Chiew S HONG ; Benjamin Kc ONG ; Bernard Pl CHAN ; Vijay K SHARMA
Annals of the Academy of Medicine, Singapore 2008;37(5):402-405
INTRODUCTIONTranscranial Doppler (TCD) is an established tool for the non-invasive assessment of cerebral blood flow. Since TCD results vary with the skills and experience of the sonographer, it requires validation against contrast angiography. We evaluated the diagnostic accuracy of TCD against computed tomography angiography (CTA) and the feasibility of the latter as an additional screening tool in our acute ischaemic stroke patients.
MATERIALS AND METHODSOur stroke unit manages about 700 patients annually. Acute stroke patients undergo TCD for vascular assessment of major arteries of the circle of Willis. Randomly selected acute stroke patients with significant stenosis on TCD underwent high-resolution cranial CTA with multidetector helical scanner. CTA was performed within 24 hours of TCD and images were interpreted by a neuroradiologist blinded to TCD findings. An independent neurosonologist reevaluated TCD if CTA findings were contradictory. Additional information by either modality was also noted.
RESULTSFifteen patients (12 men, mean age 61 +/- 15years) with cerebral ischaemia and moderate (>50%) stenosis in > or =1 large intracranial arterial segment on routine TCD were evaluated by CTA. Compared with 21 segments of significant stenosis on CTA, TCD showed 16 true-positive, 3 false-positive and 5 false-negative results (sensitivity: 76.2%, positive predictive value: 84.2%). In 3 cases, TCD showed findings complementary to CTA (real-time embolisation, collateral flow patterns, evidence of distal M2 branch occlusion).
CONCLUSIONTCD in our neurovascular laboratory shows a satisfactory agreement with cranial CTA in evaluating patients with cerebral ischaemia. TCD can provide additional real-time dynamic findings complementary to information provided by CTA.
Aged ; Brain Ischemia ; diagnosis ; Cerebral Angiography ; Female ; Humans ; Male ; Middle Aged ; Pilot Projects ; Singapore ; Tomography, X-Ray Computed ; Ultrasonography, Doppler, Transcranial
7.Application of the McDonald MRI criteria in multiple sclerosis.
Ling Ling CHAN ; Yih Yian SITOH ; June CHONG ; Siew Ju SEE ; Thirugnanam N UMAPATHI ; Shih Hui LIM ; Benjamin ONG
Annals of the Academy of Medicine, Singapore 2007;36(8):647-654
INTRODUCTIONThe aim of this study was to assess the sensitivity of McDonald's magnetic resonance imaging (MRI) criteria for the diagnosis of multiple sclerosis (MS) in a group of Asian patients diagnosed with clinically definite MS, based on lesion characterisation on MRI scans.
MATERIALS AND METHODSForty-nine patients from 3 major neurological institutions were classified as having Asian- or Western-type MS based on clinical assessment. Each MRI scan was reviewed by 2 neuroradiologists for the presence and characteristics of brain and spinal lesions. The McDonald's MRI criteria were then applied and its sensitivity evaluated.
RESULTSNine patients were excluded, leaving 34 females and 6 males who were dominantly Chinese (90%), with a mean age of 36.2 years. The MRI brain and spinal findings were detailed and tabulated. Statistically significant differences (P <0.01) in MRI brain findings and sensitivity of McDonald's MRI criteria were found between our Asian- and Western-type MS patients. The diagnostic yield of McDonald's MRI criteria increased by 20% when we substituted a cord for a brain lesion, and applied the substitution for enhancing cord lesions as well.
CONCLUSIONThe diagnosis is more likely to be made when using McDonald MRI criteria based on brain findings, in a patient who presents clinically with Western-type MS. The provision for substitution of "one brain for a spinal lesion" is helpful in Asian-type MS, where there is preponderance of spinal lesion load. Our findings suggest that minor modifications in the interpretation of McDonald's MRI criteria have significant impact on the diagnosis in patients clinically presenting as Asian-type MS, with potential bearing on their subsequent management.
Adult ; Brain Injuries ; diagnosis ; pathology ; Diagnosis, Differential ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Medical Audit ; Multiple Sclerosis ; classification ; diagnosis ; Retrospective Studies ; Sensitivity and Specificity ; Singapore ; Spinal Cord Injuries ; diagnosis ; pathology
8.POEMS syndrome--a case for more aggressive treatment.
Rahul RATHAKRISHNAN ; Te-Chih LIU ; Yee-Cheun CHAN ; Benjamin K C ONG
Annals of the Academy of Medicine, Singapore 2007;36(6):435-437
INTRODUCTIONPatients with POEMS (polyneuropathy, organomegaly, endocrinopathy, monoclonal or M-protein and skin changes) syndrome exhibit a wide range of clinical manifestations and are often seen by a variety of specialists prior to diagnosis.
CLINICAL PICTUREWe describe a case of POEMS syndrome that first presented with significant neuropathy but progressed to develop further manifestations of the condition, including marked gastrointestinal symptoms.
TREATMENTThe patient was commenced on localised radiotherapy and chemotherapy in addition to immunomodulatory therapy for the neuropathy.
CONCLUSIONWe highlight several learning points that may benefit physicians from varied specialties. This case is also unique for its marked gastrointestinal manifestation. To our knowledge, this is the second reported case in the literature with this feature.
Gastrointestinal Diseases ; etiology ; physiopathology ; Humans ; Immunologic Factors ; therapeutic use ; Male ; Middle Aged ; POEMS Syndrome ; complications ; drug therapy ; radiotherapy ; Treatment Outcome
9.Is there a place for placebo in management of psychogenic movement disorders?
Erle C H LIM ; Benjamin K C ONG ; Raymond C S SEET
Annals of the Academy of Medicine, Singapore 2007;36(3):208-210
INTRODUCTIONThe management of psychogenic movement disorders is fraught with difficulties. Empathy and a non-judgmental manner are essential in dealing with patients, and a neurobiological explanation of the symptoms may help to foster trust, acceptance, understanding and recovery.
CLINICAL PICTUREWe report a 17-year-old Chinese girl with psychogenic blepharospasm. Her parents refused psychotherapy and pharmacotherapy.
TREATMENT AND OUTCOMEPlacebo therapy (with parental consent) was prescribed with favourable results.
CONCLUSIONWe examine the ethical considerations for and against placebo therapy, and explore the role of placebo therapy in the management of psychogenic movement disorders.
Adolescent ; Blepharospasm ; psychology ; therapy ; Female ; Fraud ; Humans ; Placebo Effect ; Placebos ; therapeutic use
10.Real-time monitoring of blood flow changes during intravenous thrombolysis for acute middle cerebral artery occlusion.
Aftab AHMAD ; Kewin T H SIAH ; Sze E TAN ; Hock L TEOH ; Bernard P L CHAN ; Benjamin K C ONG ; Vijay K SHARMA
Annals of the Academy of Medicine, Singapore 2009;38(12):1104-1105
Cerebrovascular Circulation
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drug effects
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Computer Systems
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Fibrinolytic Agents
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administration & dosage
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pharmacology
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Humans
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Infarction, Middle Cerebral Artery
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drug therapy
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physiopathology
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Infusions, Intravenous
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Male
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Middle Aged
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Regional Blood Flow
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drug effects
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Thrombolytic Therapy
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Tissue Plasminogen Activator
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administration & dosage
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pharmacology