2.Advances in rehabilitation medicine.
Yee Sien NG ; Effie CHEW ; Geoffrey S SAMUEL ; Yeow Leng TAN ; Keng He KONG
Singapore medical journal 2013;54(10):538-551
Rehabilitation medicine is the medical specialty that integrates rehabilitation as its core therapeutic modality in disability management. More than a billion people worldwide are disabled, and the World Health Organization has developed the International Classification of Functioning, Disability and Health as a framework through which disability is addressed. Herein, we explore paradigm shifts in neurorehabilitation, with a focus on restoration, and provide overviews on developments in neuropharmacology, rehabilitation robotics, virtual reality, constraint-induced therapy and brain stimulation. We also discuss important issues in rehabilitation systems of care, including integrated care pathways, very early rehabilitation, early supported discharge and telerehabilitation. Finally, we highlight major new fields of rehabilitation such as spasticity management, frailty and geriatric rehabilitation, intensive care and cancer rehabilitation.
Disability Evaluation
;
Disabled Persons
;
classification
;
rehabilitation
;
Humans
;
Practice Guidelines as Topic
;
Rehabilitation
;
methods
;
standards
;
trends
;
World Health Organization
3.Clinical utility of anti-DFS70 for identifying antinuclear antibody-positive patients without systemic autoimmune rheumatic disease.
Teck Choon TAN ; Carol Yee Leng NG ; Khai Pang LEONG
Singapore medical journal 2022;63(3):147-151
INTRODUCTION:
The antinuclear antibody (ANA) test is a screening test for systemic autoimmune rheumatic disease (SARD). We hypothesised that the presence of anti-DFS70 in ANA-positive samples was associated with a false-positive ANA test and negatively associated with SARD.
METHODS:
A retrospective analysis of patient samples received for ANA testing from 1 January 2016 to 30 June 2016 was performed. Patient samples underwent ANA testing via indirect immunofluorescence method and anti-DFS70 testing using enzyme-linked immunosorbent assay.
RESULTS:
Among a total of 645 ANA-positive samples, the majority (41.7%) were positive at a titre of 1:80. The commonest nuclear staining pattern (65.5%) was speckled. Only 9.5% of ANA-positive patients were diagnosed with SARD. Anti-DFS70 was found to be present in 10.0% of ANA-positive patients. The majority (51/59, 86.4%) of patients did not have SARD. Seven patients had positive ANA titre > 1:640, the presence of anti-double stranded DNA and/or anti-Ro60. The presence of anti-DFS70 in ANA-positive patients was not associated with the absence of SARD (Fisher's exact test, p = 0.245).
CONCLUSION
The presence of anti-DFS70 was associated with a false-positive ANA test in 8.6% of our patients. Anti-DFS70 was not associated with the absence of SARD.
Adaptor Proteins, Signal Transducing
;
Antibodies, Antinuclear
;
Autoimmune Diseases/diagnosis*
;
Humans
;
Retrospective Studies
;
Rheumatic Diseases/diagnosis*
;
Transcription Factors
4.The impact of gender on the outcomes of invasive versus conservative management of patients with non-ST-segment elevation myocardial infarction.
Li Ching LEE ; Kian Keong POH ; Tiffany P L TANG ; Yee Leng TAN ; Han Wen TEE ; Huay Cheem TAN
Annals of the Academy of Medicine, Singapore 2010;39(3):168-172
INTRODUCTIONStudies have suggested that women who present with non-ST-segment elevation myocardial infarction (NSTEMI) may differ in their clinical response to early invasive strategy compared to male patients. We examined the impact of gender difference in NSTEMI patients on outcomes following invasive versus conservative treatment.
MATERIALS AND METHODSPatients enrolled in our national myocardial infarction (MI) registry between January 2000 and September 2005 with diagnosis of NSTEMI were retrospectively analysed. The study endpoint was the occurrence of major adverse cardiac events (MACE) in the patients at 1 year.
RESULTSA total of 1353 patients (62.2% male) with NSTEMI were studied. The mean age of men was 62 +/- 14 versus 72 +/- 12 years in women in the cohort (P <0.001). The prevalence of hypertension and diabetes mellitus were significantly higher in women. Men were more likely to undergo revascularisation than women (OR, 2.97; 95% CI, 2.18-3.89, P <0.001). Among those who were revascularised, there was no gender difference in survival or recurrent MI rates during hospitalisation and at 1 year. Compared to medical therapy, percutaneous coronary intervention (PCI) was associated with a significant reduction in MACE in both women (OR, 0.44; 95% CI, 0.20-0.95) and men (OR, 0.40; 95% CI, 4.79-12.75). The most important predictor of MACE for females was diabetes mellitus (HR, 1.98; 95% CI, 1.17-3.33).
CONCLUSIONSThere is a gender-based difference in the rate of revascularisation among patients with NSTEMI. Women benefit from an invasive approach as much as men, despite their advanced age, with similar rates of mortality and recurrent MI at 1-year follow-up.
Adrenergic beta-Antagonists ; therapeutic use ; Aged ; Aged, 80 and over ; Angioplasty, Balloon, Coronary ; Angiotensin-Converting Enzyme Inhibitors ; therapeutic use ; Electrocardiography ; Female ; Follow-Up Studies ; Humans ; Hydroxymethylglutaryl-CoA Reductase Inhibitors ; therapeutic use ; Male ; Middle Aged ; Myocardial Infarction ; drug therapy ; surgery ; Platelet Aggregation Inhibitors ; therapeutic use ; Practice Patterns, Physicians' ; Recurrence ; Sex Factors ; Survival Analysis
6.Antiphospholipid and other autoantibodies in COVID-19 patients: A Singapore series.
Khai Pang LEONG ; Carol Yee Leng NG ; Bingwen Eugene FAN ; Chien Mei LOH ; Lok To WONG ; Valerie Hui Hian GOH ; Gwen Li Xuan TAN ; Chong Rui CHUA ; Janet Suyun TAN ; Samuel Shang Ming LEE ; Xin Rong LIM ; Teck Choon TAN
Annals of the Academy of Medicine, Singapore 2022;51(9):586-588
7.Cytogenetic and molecular aberrations of multiple myeloma patients: a single-center study in Singapore.
Alvin Soon Tiong LIM ; Tse Hui LIM ; Karen Hsu Shien SEE ; Yit Jun NG ; Yu Min TAN ; Natasha Swee Lian CHOO ; Sherry Xin Er LIM ; Yenny YEE ; Lai Ching LAU ; Sim Leng TIEN ; Kumar SATHISH ; Daryl Chen Lung TAN
Chinese Medical Journal 2013;126(10):1872-1877
BACKGROUNDMuch is known about the cytogenetic lesions that characterize multiple myeloma (MM) patients from the USA, Europe, and East Asia. However, little has been published about the disease among Southeast Asians. The aim of this study was to determine the chromosomal abnormalities of MM patients in our Singapore population.
METHODSForty-five newly-diagnosed, morphologically confirmed patients comprising 18 males and 27 females, aged 46 - 84 years (median 65 years) were investigated by karyotyping and fluorescence in situ hybridization (FISH). FISH employing standard panel probes and 1p36/1q21 and 6q21/15q22 probes was performed on diagnostic bone marrow samples.
RESULTSThirty-four cases (75.6%) had karyotypic abnormalities. Including FISH, a total detection rate of 91.1% was attained. Numerical and complex structural aberrations were common to both hyperdiploid and non-hyperdiploid patients. Numerical gains of several recurring chromosomes were frequent among hyperdiploid patients while structural rearrangements of several chromosomes including 8q24.1 and 14q32 characterized non-hyperdiploid patients. With FISH, immunoglobulin heavy chain (IGH) gene rearrangements, especially fibroblast growth factor receptor 3 (FGFR3)/IGH and RB1 deletion/monosomy 13 were the most common abnormalities (43.4%). Amplification 1q21 was 10 times more frequent (42.5%) than del(1p36) and del(6q21).
CONCLUSIONSWe have successfully reported the comprehensive cytogenetic profiling of a cohort of newly-diagnosed myeloma patients in our population. This study indicates that the genetic and cytogenetic abnormalities, and their frequencies, in our study group are generally similar to other populations.
Aged ; Aged, 80 and over ; Chromosome Aberrations ; Cytogenetics ; Female ; Humans ; Immunoglobulin Heavy Chains ; In Situ Hybridization, Fluorescence ; Karyotyping ; Male ; Middle Aged ; Monosomy ; genetics ; Multiple Myeloma ; genetics ; pathology ; Receptor, Fibroblast Growth Factor, Type 3 ; genetics ; Retinoblastoma Protein ; genetics ; Singapore
8.Bone marrow cytogenetics workup: Application of lean management system to determine if additional cell workup is helpful and necessary to analysis.
Alvin S T LIM ; Ting Jie CHEN ; Tse Hui LIM ; Mary TAN ; Lai Ching LAU ; Ping LIM ; Geok Yee LEE ; Li Eng LOO ; Fiona P S LIAW ; Charles T H CHUAH ; Yeow Tee GOH ; Sim Leng TIEN
Annals of the Academy of Medicine, Singapore 2010;39(9):696-699
INTRODUCTIONHigh workload volumes in a Cytogenetics laboratory can lead to long result turn-around times (TAT). This study aimed to improve laboratory efficiency by adopting Lean Management System initiatives to increase productivity through the elimination of wastes. This study examined if the prerequisite 20-cell analysis was sufficient for a conclusive result or if additional cell workup was necessary to ascertain the presence of a previous chromosome abnormality among cases on follow-up, or when a single abnormal cell was encountered during the analysis to determine the presence of a clone.
MATERIALS AND METHODSThe karyotype results of cases that had additional workup were retrieved from among 8040 bone marrow cases of various haematological disorders performed between June 2003 and June 2008.
RESULTSOf 8040 cases analysed, 2915 cases (36.3%) had additional cell workup. Only 49 cases (1.7%) led to the establishment of a clone. The majority of these cases could have been resolved without the additional workup, especially if fluorescence in situ hybridization (FISH) or polymerase chain reaction (PCR)-based assays had been utilised.
CONCLUSIONThis study shows that the additional workup procedure is redundant. The time saved by discontinuing the workup procedure can be used to analyse other cases, leading to increased laboratory efficiency and a faster TAT without compromise to patient care. The practice of additional workup over and above the 20- cell analysis should be dispensed with as little benefit was derived for the amount of additional manpower expended. FISH or PCR-based assays should be utilised to elucidate a case further.
Adult ; Aged ; Aged, 80 and over ; Bone Marrow ; Bone Marrow Cells ; Cytogenetics ; Efficiency ; Efficiency, Organizational ; Female ; Hematologic Diseases ; diagnosis ; pathology ; Humans ; In Situ Hybridization, Fluorescence ; instrumentation ; methods ; Karyotyping ; instrumentation ; methods ; Male ; Polymerase Chain Reaction
9.Radiographic features of COVID-19 based on an initial cohort of 96 patients in Singapore.
Hau Wei Wei KHOO ; Terrence Chi Hong HUI ; Salahudeen Mohamed Haja MOHIDEEN ; Yeong Shyan LEE ; Charlene Jin Yee LIEW ; Shawn Shi Xian KOK ; Barnaby Edward YOUNG ; Sean Wei Xiang ONG ; Shirin KALIMUDDIN ; Seow Yen TAN ; Jiashen LOH ; Lai Peng CHAN ; Angeline Choo Choo POH ; Steven Bak Siew WONG ; Yee-Sin LEO ; David Chien LYE ; Gregory Jon Leng KAW ; Cher Heng TAN
Singapore medical journal 2021;62(9):458-465
INTRODUCTION:
Chest radiographs (CXRs) are widely used for the screening and management of COVID-19. This article describes the radiographic features of COVID-19 based on an initial national cohort of patients.
METHODS:
This is a retrospective review of swab-positive patients with COVID-19 who were admitted to four different hospitals in Singapore between 22 January and 9 March 2020. Initial and follow-up CXRs were reviewed by three experienced radiologists to identify the predominant pattern and distribution of lung parenchymal abnormalities.
RESULTS:
In total, 347 CXRs of 96 patients were reviewed. Initial CXRs were abnormal in 41 (42.7%) out of 96 patients. The mean time from onset of symptoms to CXR abnormality was 5.3 ± 4.7 days. The predominant pattern of lung abnormality was ground-glass opacity on initial CXRs (51.2%) and consolidation on follow-up CXRs (51.0%). Multifocal bilateral abnormalities in mixed central and peripheral distribution were observed in 63.4% and 59.2% of abnormal initial and follow-up CXRs, respectively. The lower zones were involved in 90.2% of initial CXRs and 93.9% of follow-up CXRs.
CONCLUSION
In a cohort of swab-positive patients, including those identified from contact tracing, we found a lower incidence of CXR abnormalities than was previously reported. The most common pattern was ground-glass opacity or consolidation, but mixed central and peripheral involvement was more common than peripheral involvement alone.
COVID-19
;
Humans
;
Lung/diagnostic imaging*
;
Radiography, Thoracic
;
Retrospective Studies
;
SARS-CoV-2
;
Singapore
10.A practical and adaptive approach to lung cancer screening: a review of international evidence and position on CT lung cancer screening in the Singaporean population by the College of Radiologists Singapore.
Charlene Jin Yee LIEW ; Lester Chee Hao LEONG ; Lynette Li San TEO ; Ching Ching ONG ; Foong Koon CHEAH ; Wei Ping THAM ; Haja Mohamed Mohideen SALAHUDEEN ; Chau Hung LEE ; Gregory Jon Leng KAW ; Augustine Kim Huat TEE ; Ian Yu Yan TSOU ; Kiang Hiong TAY ; Raymond QUAH ; Bien Peng TAN ; Hong CHOU ; Daniel TAN ; Angeline Choo Choo POH ; Andrew Gee Seng TAN
Singapore medical journal 2019;60(11):554-559
Lung cancer is the leading cause of cancer-related death around the world, being the top cause of cancer-related deaths among men and the second most common cause of cancer-related deaths among women in Singapore. Currently, no screening programme for lung cancer exists in Singapore. Since there is mounting evidence indicating a different epidemiology of lung cancer in Asian countries, including Singapore, compared to the rest of the world, a unique and adaptive approach must be taken for a screening programme to be successful at reducing mortality while maintaining cost-effectiveness and a favourable risk-benefit ratio. This review article promotes the use of low-dose computed tomography of the chest and explores the radiological challenges and future directions.