1.Low-density lipoprotein cholesterol goal attainment and mortality in ischaemic heart disease: a two-year observational study.
Ying Hui MAK ; Fionn CHUA ; Xuan Han KOH ; Vern Hsen TAN ; Zhong Hui LEE ; Audrey LAM ; Kim Leng TONG ; Colin YEO ; Weien CHOW ; Wann Jia LOH
Singapore medical journal 2025;66(3):154-162
INTRODUCTION:
Achieving low-density lipoprotein cholesterol (LDL-C) levels is key to preventing atherosclerotic cardiovascular events. However, many high-risk cardiovascular patients still experience poor LDL-C goal attainment and receive suboptimal lipid-lowering therapy (LLT) prescriptions. Herein, we evaluated LLT prescription patterns, LDL-C goal attainment and cardiovascular mortality among this population group in Singapore.
METHODS:
This prospective observational cohort study included 555 patients with ischaemic heart disease (IHD) admitted to the hospital in 2020. The LLT prescriptions, corresponding LDL-C levels and cardiovascular outcomes were assessed over a 24-month period.
RESULTS:
Most participants were male (82.3%), with 48.5% identified as Chinese. High-intensity statin prescriptions increased from 45.4% at hospital admission to 87.1% at discharge and remained stable at approximately 80% at 6, 12, and 24 months post-discharge. Combination LLT prescriptions increased from 12.3% at discharge to 33.8% by 24 months. Ezetimibe was the most commonly prescribed second-line LLT (40.8%), followed by inclisiran (1.09%) and anti-proprotein convertase subtilisin/kexin type 9 monoclonal antibody therapies (0.87%). Over 24 months, LDL-C goal attainment rates were 22.1% for LDL-C < 1.4 mmol/L and 47.2% for LDL-C < 1.8 mmol/L. Multivariable Cox proportional hazards regression indicated that achieving LDL-C < 1.8 mmol/L goal was associated with a reduction in all-cause mortality at 24 months (hazard ratio 0.53, 95% confidence interval 0.30-0.94, P = 0.030).
CONCLUSION
Treatment gaps in lipid management persist in 80% of the study population, indicating that statin monotherapy alone is insufficient to achieve LDL-C goals. Greater efforts to improve LDL-C goal attainment rates in high-risk cardiovascular patients are imperative.
Humans
;
Male
;
Cholesterol, LDL/blood*
;
Female
;
Myocardial Ischemia/drug therapy*
;
Middle Aged
;
Prospective Studies
;
Aged
;
Singapore/epidemiology*
;
Hydroxymethylglutaryl-CoA Reductase Inhibitors/therapeutic use*
;
Ezetimibe/therapeutic use*
;
Anticholesteremic Agents/therapeutic use*
;
Treatment Outcome
2.Metabolic health and strategies for a Healthier SG.
Joan KHOO ; Rachel Li Cui LIM ; Lok Pui NG ; Ian Kwong Yun PHOON ; Linsey GANI ; Troy Hai Kiat PUAR ; Choon How HOW ; Wann Jia LOH
Singapore medical journal 2025;66(Suppl 1):S30-S37
This review examines strategies for the prevention and management of obesity, hypertension, type 2 diabetes mellitus and dyslipidaemia, conditions that are increasing in Singapore, as components of individualised health plans in 'Healthier SG' and beyond. We describe cardiometabolic disease prevention and management initiatives in Changi General Hospital (CGH), including collaborations with SingHealth Polyclinics, Active SG, Exercise is Medicine Singapore and community partners in the Eastern Community Health Outreach programme, and highlight advances in curable hypertension (e.g., primary hyperaldosteronism) and novel cardiovascular risk markers such as lipoprotein(a). We also outline technology-based interventions, notably the CGH Health Management Unit, which demonstrate the utility and convenience of telemedicine, and digital therapeutics in the form of apps that have been shown to improve treatment adherence and clinical outcomes. Individual empowerment, in partnership with community and healthcare providers and supported by research and innovation of care delivery, is key to building a healthier and stronger nation.
Humans
;
Singapore
;
Diabetes Mellitus, Type 2/therapy*
;
Hypertension/therapy*
;
Obesity/therapy*
;
Dyslipidemias/therapy*
;
Telemedicine
;
Cardiovascular Diseases/prevention & control*
;
Exercise
;
Metabolic Diseases/prevention & control*
3.Factors Associated with Resolution of Hypertension after Adrenalectomy in Patients with Primary Aldosteronism.
Wann Jia LOH ; Dawn Shao Ting LIM ; Lih Ming LOH ; Peng Chin KEK
Endocrinology and Metabolism 2018;33(3):355-363
BACKGROUND: The aim of this study was to investigate the factors associated with resolution of hypertension after adrenalectomy in patients with primary aldosteronism. A secondary aim was to describe our use of the contralateral ratio in adrenal venous sampling (AVS) in the setting of suboptimal successful cannulation rates. METHODS: A retrospective review of patients who underwent AVS followed by unilateral adrenalectomy for primary aldosteronism was performed. RESULTS: Complete resolution of hypertension and hypokalemia was seen in 17 of 40 patients (42.5%), while a clinical improvement in hypertension was seen in 38 of 40 (95%). Shorter duration of hypertension, mean aldosteronoma resolution score (ARS), and a high ARS of 3 to 5 were associated with resolution of hypertension after adrenalectomy (P=0.02, P=0.02, and P=0.004, respectively). Of the individual components of ARS, only a duration of hypertension of ≤6 years was associated with resolution of hypertension after adrenalectomy (P=0.03). CONCLUSION: A shorter duration of hypertension was significantly associated with resolution of hypertension after adrenalectomy in patients with primary aldosteronism.
Adrenalectomy*
;
Catheterization
;
Humans
;
Hyperaldosteronism*
;
Hypertension*
;
Hypokalemia
;
Retrospective Studies
4.Factors associated with mortality among patients with active pulmonary tuberculosis requiring intensive care.
Wann Jia LOH ; Yue YU ; Chian Min LOO ; Su Ying LOW
Singapore medical journal 2017;58(11):656-659
INTRODUCTIONThe aim of this study was to identify patient characteristics and risk factors associated with in-hospital mortality of patients with pulmonary tuberculosis (PTB) requiring intensive care unit (ICU) management.
METHODSA retrospective chart review was conducted of all patients with active PTB admitted to the ICU at Singapore General Hospital, Singapore, between January 2005 and December 2010.
RESULTSThere were 2,155 patients with active PTB diagnosed, of whom 83 (3.9%) patients were admitted to the ICU, but eight were excluded because their admission to the ICU was unrelated to PTB. The most common comorbidities were diabetes mellitus (n = 23, 30.7%) and immunocompromised host (n = 25, 33.3%). A few (n = 4, 5.3%) of the patients had HIV coinfection. A majority (n = 67, 89.3%) of patients required mechanical ventilation and the mean duration of mechanical ventilation was 8.05 ± 14.43 days. Mean duration of ICU stay and hospital stay were 10.23 ± 15.8 days and 33.7 ± 50.7 days, respectively. In-hospital mortality was 62.7% (n = 47), and 36 of these patients died while in the ICU (ICU mortality, 48.0%). Univariate analysis identified ischaemic heart disease, low albumin, Acute Physiology and Chronic Health Evaluation score, disseminated intravascular coagulation, shock and multiorgan failure as significantly associated with mortality. Multivariate analysis showed that low albumin on the day of ICU admission was the only significant independent predictor of death (p = 0.033).
CONCLUSIONIn-hospital mortality from active PTB requiring ICU admission was 62.7%, and low albumin was an independent predictor of mortality in this study.
5.Torsion of the wandering spleen and pancreatic tail precipitating diabetic ketoacidosis in a patient with Prader Willi Syndrome: A case report
Loh Wann Jia ; Chan Weng Hoong ; Tham Kwang Wei
Journal of the ASEAN Federation of Endocrine Societies 2016;31(1):45-49
Prader Willi Syndrome (PWS) includes complex endocrinological issues because of the hypothalamic and pituitary dysfunction which include obesity and diabetes, as well as behavioural issues. Other important aspects of PWS, such as hepatosplenomegaly are sometimes neglected. We present a case of diabetic ketoacidosis precipitated by torsion of a wandering spleen in a 22-year-old woman with PWS and type 2 diabetes mellitus. The pancreatic tail was involved in the torsion leading to hyperamylasaemia and pancreatitis. The splenic torsion and pancreatitis were initially treated conservatively with resolution of symptoms. A year later, she had another 2 episodes of severe abdominal pain due to worsening splenic torsion which subsided with conservative management. She subsequently underwent an elective splenectomy which revealed an enlarged and wandering spleen, with 720 degrees torsion of the long splenic pedicle.
Prader-Willi Syndrome


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