1.Multimodality Cardiac Imaging in the Evaluation of a Patient with Near-Fatal Arrhythmia.
Nicholas NGIAM ; Nicholas CHEW ; Ping CHAI ; Kian Keong POH
Annals of the Academy of Medicine, Singapore 2019;48(1):39-41
Anticoagulants
;
therapeutic use
;
Cardiomyopathy, Hypertrophic
;
complications
;
diagnostic imaging
;
therapy
;
Coronary Angiography
;
Death, Sudden, Cardiac
;
prevention & control
;
Defibrillators, Implantable
;
Echocardiography
;
Electric Countershock
;
Electrocardiography
;
Heart Aneurysm
;
complications
;
diagnostic imaging
;
therapy
;
Humans
;
Magnetic Resonance Imaging
;
Male
;
Middle Aged
;
Tachycardia, Ventricular
;
diagnosis
;
etiology
;
therapy
2.Clinics in diagnostic imaging (156). Golf-induced hamate hook fracture.
Hsien Khai TAN ; Nicholas CHEW ; Kelvin T L CHEW ; Wilfred C G PEH
Singapore medical journal 2014;55(10):517-quiz 521
The wrist is a common site of injury and the most frequently injured body part among professional golfers. A 37-year-old, right-handed male golfer presented with pain at the ulnar aspect of his left palm, which grew worse after an initial traumatic impact from the golf club handle. There was tenderness over the hypothenar eminence of the left palm. Computed tomography of the left wrist showed an undisplaced fracture through the base of the hamate hook. The golf-induced hamate hook fracture was managed conservatively, with cessation of physical activity involving the left hand and wrist for eight weeks. The patient made a full recovery. Repetitive trauma, exacerbated by improper wrist motion, leads to typical wrist injuries affecting golfers, such as ulnar impaction syndrome, de Quervain's disease, and tendinopathy affecting the flexor carpi ulnaris and extensor carpi ulnaris, all of which can be diagnosed on imaging.
Adult
;
Fractures, Bone
;
diagnostic imaging
;
Golf
;
injuries
;
Hamate Bone
;
diagnostic imaging
;
injuries
;
Humans
;
Male
;
Tendinopathy
;
Tomography, X-Ray Computed
;
methods
;
Wrist Injuries
;
diagnostic imaging
3.Presentation and outcome amongst older Singaporeans living with human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS): does age alone drive excess mortality?
Paul J HUGGAN ; Rui Min FOO ; Dariusz OLSZYNA ; Nicholas S CHEW ; Nares SMITASEN ; Amartya MUKHOPADHYAY ; Sophia ARCHULETA
Annals of the Academy of Medicine, Singapore 2012;41(12):581-586
INTRODUCTIONThere is little detailed information on human immunodeficiency virus (HIV) amongst older adults in Singapore.
MATERIALS AND METHODSA retrospective study of 121 consecutive referrals of patients presenting for HIV care was conducted. Demographic, clinical and laboratory variables were collected. A prognostic model derived from the North American Veterans' Affairs Cohort Study (VACS) was used to estimate prognosis.
RESULTSThe median age at presentation was 43 (range, 18 to 76). Thirty-eight patients (31%) were aged 50 or older and 106 patients (88%) were male. Older patients were more likely to be of Chinese ethnicity (P = 0.035), married (P = 0.0001), unemployed or retired (P = 0.0001), and to have acquired their infection heterosexually (P = 0.0002). The majority of patients in both groups were symptomatic at presentation. Eighty-one (67%) had CD4 counts less than 200 at baseline with no observable differences in HIV ribonucleic acid (RNA) or clinical stage based on age. Non-Acquired Immunodeficiency Syndrome (AIDS) morbidity was observed more frequently amongst older patients. The estimated prognosis of patients differed significantly based on age. Using the VACS Index and comparing younger patients with those aged 50 and above, mean 5 year mortality estimates were 25% and 50% respectively (P <0.001). A trend towards earlier antiretroviral therapy was noted amongst older patients (P = 0.067) driven mainly by fewer financial difficulties reported as barriers to treatment.
CONCLUSIONOlder patients form a high proportion of newly diagnosed HIV/AIDS cases and present with more non-AIDS morbidity. This confers a poor prognosis despite comparable findings with younger patients in terms of clinical stage, AIDS-defining illness, CD4 count and HIV viral load.
Acquired Immunodeficiency Syndrome ; mortality ; Adolescent ; Adult ; Age Factors ; Aged ; Female ; HIV Infections ; mortality ; HIV Long-Term Survivors ; Humans ; Male ; Middle Aged ; Models, Theoretical ; Mortality ; trends ; Prognosis ; Retrospective Studies ; Singapore ; epidemiology ; Social Class ; Young Adult
4.Rare
Nicholas W S CHEW ; Raymond C WONG ; William W F KONG ; Adrian LOW ; Huay Cheem TAN
Annals of the Academy of Medicine, Singapore 2021;50(8):655-656
5.Educational case series of electrocardiographs during the COVID-19 pandemic and the implications for therapy.
Ching-Hui SIA ; Jinghao Nicholas NGIAM ; Nicholas CHEW ; Darius Lian Lian BEH ; Kian Keong POH
Singapore medical journal 2020;61(8):406-412
Adenosine Monophosphate
;
analogs & derivatives
;
therapeutic use
;
Adult
;
Aged
;
Alanine
;
analogs & derivatives
;
therapeutic use
;
Anti-Arrhythmia Agents
;
therapeutic use
;
Arrhythmias, Cardiac
;
diagnosis
;
epidemiology
;
Coronavirus Infections
;
diagnosis
;
drug therapy
;
epidemiology
;
Echocardiography
;
Electrocardiography
;
methods
;
statistics & numerical data
;
Female
;
Follow-Up Studies
;
Humans
;
Male
;
Pandemics
;
statistics & numerical data
;
Pneumonia, Viral
;
diagnosis
;
drug therapy
;
epidemiology
;
Sampling Studies
;
Severe Acute Respiratory Syndrome
;
diagnosis
;
epidemiology
;
Singapore
;
Treatment Outcome
6.Low incidence of cardiac complications from COVID-19 and its treatment among hospitalised patients in Singapore.
Tony Yi Wei LI ; Jinghao Nicholas NGIAM ; Nicholas W S CHEW ; Sai Meng THAM ; Zhen Yu LIM ; Shuyun CEN ; Shir Lynn LIM ; Robin CHERIAN ; Raymond C C WONG ; Ping CHAI ; Tiong Cheng YEO ; Paul Anantharajah TAMBYAH ; Amelia SANTOSA ; Gail Brenda CROSS ; Ching Hui SIA
Annals of the Academy of Medicine, Singapore 2021;50(6):490-493
9.The effect of diabetes and prediabetes on the prevalence, complications and mortality in nonalcoholic fatty liver disease
Cheng Han NG ; Kai En CHAN ; Yip Han CHIN ; Rebecca Wenling ZENG ; Pei Chen TSAI ; Wen Hui LIM ; Darren Jun Hao TAN ; Chin Meng KHOO ; Lay Hoon GOH ; Zheng Jye LING ; Anand KULKARNI ; Lung-Yi Loey MAK ; Daniel Q HUANG ; Mark CHAN ; Nicholas WS CHEW ; Mohammad Shadab SIDDIQUI ; Arun J. SANYAL ; Mark MUTHIAH
Clinical and Molecular Hepatology 2022;28(3):565-574
Background/Aims:
Nonalcoholic fatty liver disease (NAFLD) is closely associated with diabetes. The cumulative impact of both diseases synergistically increases risk of adverse events. However, present population analysis is predominantly conducted with reference to non-NAFLD individuals and has not yet examined the impact of prediabetes. Hence, we sought to conduct a retrospective analysis on the impact of diabetic status in NAFLD patients, referencing non-diabetic NAFLD individuals.
Methods:
Data from the National Health and Nutrition Examination Survey 1999–2018 was used. Hepatic steatosis was defined with United States Fatty Liver Index (US-FLI) and FLI at a cut-off of 30 and 60 respectively, in absence of substantial alcohol use. A multivariate generalized linear model was used for risk ratios of binary outcomes while survival analysis was conducted with Cox regression and Fine Gray model for competing risk.
Results:
Of 32,234 patients, 28.92% were identified to have NAFLD. 36.04%, 38.32% and 25.63% were non-diabetic, prediabetic and diabetic respectively. Diabetic NAFLD significantly increased risk of cardiovascular disease (CVD), stroke, chronic kidney disease, all-cause and CVD mortality compared to non-diabetic NAFLD. However, prediabetic NAFLD only significantly increased the risk of CVD and did not result in a higher risk of mortality.
Conclusions
Given the increased risk of adverse outcomes, this study highlights the importance of regular diabetes screening in NAFLD and adoption of prompt lifestyle modifications to reduce disease progression. Facing high cardiovascular burden, prediabetic and diabetic NAFLD individuals can benefit from early cardiovascular referrals to reduce risk of CVD events and mortality.
10.Non-alcoholic fatty liver disease increases risk of carotid atherosclerosis and ischemic stroke: An updated meta-analysis with 135,602 individuals
Ansel Shao Pin TANG ; Kai En CHAN ; Jingxuan QUEK ; Jieling XIAO ; Phoebe TAY ; Margaret TENG ; Keng Siang LEE ; Snow Yunni LIN ; May Zin MYINT ; Benjamin TAN ; Vijay K SHARMA ; Darren Jun Hao TAN ; Wen Hui LIM ; Apichat KAEWDECH ; Daniel HUANG ; Nicholas WS CHEW ; Mohammad Shadab SIDDIQUI ; Arun J SANYAL ; Mark MUTHIAH ; Cheng Han NG
Clinical and Molecular Hepatology 2022;28(3):483-496
Background/Aims:
Non-alcoholic fatty liver disease (NAFLD) is associated with the development of cardiovascular disease. While existing studies have examined cardiac remodeling in NAFLD, there has been less emphasis on the development of carotid atherosclerosis and stroke. We sought to conduct a meta-analysis to quantify the prevalence, risk factors, and degree of risk increment of carotid atherosclerosis and stroke in NAFLD.
Methods:
Embase and Medline were searched for articles relating to NAFLD, carotid atherosclerosis, and stroke. Proportional data was analysed using a generalized linear mixed model. Pairwise meta-analysis was conducted to obtain odds ratio or weighted mean difference for comparison between patients with and without NAFLD.
Results:
From pooled analysis of 30 studies involving 7,951 patients with NAFLD, 35.02% (95% confidence interval [CI], 27.36–43.53%) had carotid atherosclerosis with an odds ratio of 3.20 (95% CI, 2.37–4.32; P<0.0001). Pooled analysis of 25,839 patients with NAFLD found the prevalence of stroke to be 5.04% (95% CI, 2.74–9.09%) with an odds ratio of 1.88 (95% CI, 1.23–2.88; P=0.02) compared to non-NAFLD. The degree of steatosis assessed by ultrasonography in NAFLD was closely associated with risk of carotid atherosclerosis and stroke. Older age significantly increased the risk of developing carotid atherosclerosis, but not stroke in NAFLD.
Conclusions
This meta-analysis shows that a stepwise increment of steatosis of NAFLD can significantly increase the risk of carotid atherosclerosis and stroke development in NAFLD. Patients more than a third sufferred from carotid atherosclerosis and routine assessment of carotid atherosclerosis is quintessential in NAFLD.