1.Diabetes Mellitus as a Cardiometabolic Disease
The Singapore Family Physician 2019;45(1):12-17
Diabetes mellitus is a global health crisis. It is associated with many disabling co-morbidities and could lead to premature cardiovascular disease and death. Chronic hyperglycaemia leads to many pathological changes that are atherogenic. Some studies have regarded diabetes mellitus as a coronary heart disease risk equivalent, especially patients with a long duration of disease. Diabetes mellitus is associated with other traditional cardiovascular risk factors such as hypertension and dyslipidaemia, which together they increase the risk of cardiovascular disease by many folds. There are several strategies to improve the cardiovascular outcomes among people with diabetes mellitus, including the following: 1) early intensive glycaemic control (UKPDS); 2) optimal treatment of traditional cardiovascular risk factors (STENO-2); and 3) use of novel glucose-lowering therapies (sodium-glucose transporter 2 inhibitors or glucagon-like peptide 1 agonist) that have benefits on cardiovascular events or mortality.
2.SGLT2-inhibitor and its place in Contemporary Diabetes Management
The Singapore Family Physician 2020;46(6):8-11
The therapeutic approach for patients with type 2 diabetes is evolving rapidly. The recent published cardiovascular outcomes trials (EMPA-Reg, Canvas and DECLARE-TIMI 58), and DAPA-HF and CREDENCE studies demonstrated the benefits of Sodium-glucose transporter 2 inhibitors (SGLT2i) in improving the outcomes of diabetic patients with cardiovascular
disease, heart failure and diabetic nephropathy. The cardiorenal benefits are seen beyond the glycaemic control. The treatment algorithm recommends early use of SGLT2i, especially among those with existing cardiovascular disease, heart failure or kidney disease.
The side effects of SGLT2i are related to its underlying mechanisms of action, i.e. a higher incidence of genital yeast infections and urinary tract infections. SGLT2i can also cause euglycaemic ketoacidosis and is not currently indicated for use in patients with type 1 diabetes.
3.Treating Diabetes in Older Adults – Optimising Glycaemic Targets with Comorbidities in Mind
The Singapore Family Physician 2020;46(7):6-10
Ageing is associated with changes in the body composition, reduced insulin sensitivity and beta-cell function, which predispose the older adults to glucose intolerance and a higher risk of diabetes mellitus. The diabetes treatment for older adults is complicated by higher rates of coexisting illnesses, functional and physical disability, cognitive impairment, and more prone to injury. The treatment goal is less stringent, with a reasonable HbA1c between 7.0 to 8.0 percent, with the aim to minimise the risk of hypoglycaemia. Medical nutrition therapy and physical activity are the cornerstones in the management, failing so, pharmacotherapy with oral or injectable diabetes medication would be needed for diabetes control. The Appropriate Care Guidelines, Ministry of Health, on Oral Glucose-Lowering Agents, and Initiating Basal Insulin in type 2 diabetes mellitus, published in 2017, have provided the framework for the use of oral glucose-lowering agents and insulin therapy for diabetes management in the general population. The diabetes management plan includes a multidisciplinary team, a greater consideration of patient factors, aspiration and goals, and risk evaluation and mitigation strategy to prevent hypoglycaemia. Easy and early access to health care is critical as older adults are prone to rapid deterioration in the clinical condition.
4.Attitudes and Concerns of Diabetic Patients towards Bariatric Surgery as Treatment of Diabetes.
Hui Wen CHUA ; Hui Jun ZHOU ; Chin Meng KHOO ; Asim SHABBIR ; Davide LOMANTO ; Jimmy By SO
Annals of the Academy of Medicine, Singapore 2016;45(11):495-506
INTRODUCTIONBariatric surgery is increasingly recognised as an effective treatment for type 2 diabetes that significantly improves glycaemic control, even achieving remission. This study examined perceptions and concerns of diabetic patients towards bariatric surgery as a treatment option for diabetes.
MATERIALS AND METHODSA total of 150 patients were recruited from a specialised diabetic outpatient clinic and completed a questionnaire (items were rated on a Likert scale from slightly important [lowest score of 1] to extremely important [maximum score of 5]). Logistic regression was performed to identify factors influencing decision for surgery.
RESULTSThe 74 males and 76 females had mean age of 50 (range 20 to 78) and body mass index (BMI) of 29.6 kg/m(range 18.1 to 51); 61% considered surgery favourably. Predictive factors for interest in surgery: higher educational levels (OR = 2.3; 95% CI, 1.2 to 4.4), duration of diabetes (OR = 0.4; 95% CI, 0.2 to 1.0) and use of insulin (OR = 2.1; 95% CI, 1.1 to 4.1). Reasons for surgery: desire for remission (Likert scale 4.7 ± 0.7), to prevent complications (Likert scale 4.5 ± 0.9) and to reduce medications (Likert scale 4.3 ± 1.1). For those not keen on surgery, main reasons were fear of surgery (Likert scale 4 ± 1.5) and satisfaction with current therapy (Likert scale 3.7 ± 1.6).
CONCLUSIONMany diabetic patients would consider surgery as an option to improve their metabolic disorder (greater interest in patients with higher educational levels, currently using insulin and with shorter duration of diabetes). Surgical complications, length of recovery and duration of benefits were the main concerns.
Adult ; Aged ; Attitude to Health ; Bariatric Surgery ; Decision Making ; Diabetes Mellitus, Type 2 ; complications ; drug therapy ; surgery ; Educational Status ; Female ; Humans ; Hypoglycemic Agents ; therapeutic use ; Insulin ; therapeutic use ; Logistic Models ; Male ; Middle Aged ; Motivation ; Obesity ; complications ; surgery ; Obesity, Morbid ; complications ; surgery ; Time Factors ; Young Adult
5.Prevalence and control of hypercholesterolaemia as defined by NCEP-ATPIII guidelines and predictors of LDL-C goal attainment in a multi-ethnic Asian population.
Chin Meng KHOO ; Maudrene L S TAN ; Yi WU ; Daniel C H WAI ; Tavintharan SUBRAMANIAM ; E Shyong TAI ; Jeannette LEE
Annals of the Academy of Medicine, Singapore 2013;42(8):379-387
INTRODUCTIONFew studies in Asia have assessed the burden of hypercholesterolaemia based on the global cardiovascular risk assessment. This study determines the burden of hypercholesterolaemia in an Asian population based on the National Cholesterol Education Program-Adult Treatment Panel III (NCEP-ATPIII) guidelines, and examines predictors of low-density lipoprotein cholesterol (LDL-C) goal attainment.
MATERIALS AND METHODSFive thousand and eighty-three Chinese, Malays and Asian-Indians living in Singapore were assigned to coronary heart disease (CHD)-risk category based on the NCEP-ATPIII guidelines. Awareness, treatment and control of hypercholesterolaemia based on risk- specific LDL-C goal were determined, including the use of lipid-lowering therapy (LLT). Cox-regression models were used to identify predictors of LDL-C above goal among those who were aware and unaware of hypercholesterolaemia.
RESULTSOne thousand five hundred and sixty-eight (30.8%) participants were aware of hypercholesterolaemia and 877 (17.3%) were newly diagnosed (unaware). For those who were aware, 39.3% participants received LLT. Among those with 2 risk factors, only 59.7% attained LDL-C goal. The majority of them were taking statin monotherapy, and the median dose of statins was similar across all CHD risk categories. Among participants with 2 risk factors and not receiving LLT, 34.1% would require LLT. Malays or Asian-Indians, higher CHD risk category, increasing body mass index (BMI), current smoking and lower education status were associated with higher risk of LDL-C above goal. Being on LLT reduced the risk of having LDL-C above goal.
CONCLUSIONThe burden of hypercholesterolaemia is high in this multi-ethnic population especially those in the higher CHD risk categories, and might be partly contributed by inadequate titration of statins therapy. Raising awareness of hypercholesterolaemia, appropriate LLT initiation and titration, weight management and smoking cessation may improve LDL-C goal attainment in this population.
Adult ; Aged ; Aged, 80 and over ; Asian Continental Ancestry Group ; Cholesterol, LDL ; blood ; Cross-Sectional Studies ; Female ; Humans ; Hypercholesterolemia ; blood ; epidemiology ; prevention & control ; Male ; Middle Aged ; Practice Guidelines as Topic ; Prevalence ; Singapore ; epidemiology ; Young Adult
6.Pitfalls in clinical genetics.
Hui-Lin CHIN ; Denise Li Meng GOH
Singapore medical journal 2023;64(1):53-58
With the increasing availability of genetic tests, more doctors are offering and ordering such tests for their patients. Ordering a genetic test appears to be a simple process of filling in paperwork, drawing 3 mL of blood in an ethylenediaminetetraacetic acid tube and receiving a test report. This is identical to sending off a full blood count. However, it is far more complex than that. There are many potential pitfalls, as shown by the increasing number of complaints and lawsuits filed against doctors and allied health staff. Furthermore, clinical genetics involves more than just ordering tests; in fact, focusing on genetic tests alone is a potential pitfall. In this review, we discuss the common pitfalls in clinical genetics and how doctors can avoid these pitfalls to ensure patient safety and to safeguard their practice.
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7.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.
8.Use of SGLT-2 Inhibitors in Patients with Type 2 Diabetes Mellitus and Abdominal Obesity: An Asian Perspective and Expert Recommendations
Wayne Huey Herng SHEU ; Siew Pheng CHAN ; Bien J MATAWARAN ; Chaicharn DEEROCHANAWONG ; Ambrish MITHAL ; Juliana CHAN ; Ketut SUASTIKA ; Chin Meng KHOO ; Huu Man NGUYEN ; Ji LINONG ; Andrea LUK ; Kun Ho YOON
Diabetes & Metabolism Journal 2020;44(1):11-32
The prevalence of obesity in Asia is of epidemic proportions, with an estimated 1 billion overweight/obese individuals in the region. The majority of patients with type 2 diabetes mellitus (T2DM) are overweight/obese, which increases the risk of cardiorenal outcomes in these patients; hence, sustained reductions in body weight and visceral adiposity are important management goals. However, most of the glucose-lowering therapies such as insulin, sulfonylureas, glinides, and thiazolidinediones induce weight gain, which makes the management of overweight/obese T2DM patients challenging. Sodium-glucose cotransporter-2 (SGLT-2) inhibitors are the only oral glucose-lowering agents that have been shown to reduce body weight and visceral adiposity. In addition, SGLT-2 inhibitors therapy reduces ectopic fat deposition and improves adipose tissue function and weight-related quality of life. In this article, we aim to consolidate the existing literature on the effects of SGLT-2 inhibitors in Asian patients with T2DM and to produce clinical recommendations on their use in overweight or obese patients with T2DM. Recommendations from international and regional guidelines, as well as published data from clinical trials in Asian populations and cardiovascular outcomes trials are reviewed. Based on the available data, SGLT-2 inhibitors represent an evidence-based therapeutic option for the management of overweight/obese patients with T2DM.
9.Calcium, Vitamin D, and Bone Derangement in Nephrotic Syndrome
Samantha Peiling Yang ; Lizhen Ong ; Tze Ping Loh ; Horng Ruey Chua ; Cassandra Tham ; Khoo Chin Meng ; Lim Pin
Journal of the ASEAN Federation of Endocrine Societies 2021;36(1):50-55
Introduction:
Derangement in calcium homeostasis is common in nephrotic syndrome (NS). It is postulated that low serum total calcium and vitamin D levels are due to loss of protein-bound calcium and vitamin D. It is unclear if free calcium and free vitamin D levels are truly low. The guideline is lacking with regards to calcium and vitamin D supplementation in NS. This study aims to examine calcium and vitamin D homeostasis and bone turnover in NS to guide practice in calcium and vitamin D levels supplementation.
Methodology:
This is a prospective pilot study of ten patients diagnosed with NS, and eight healthy controls. Calcium, vitamin D, and bone turnover-related analytes were assessed at baseline, partial and complete remission in NS patients and in healthy controls.
Results:
NS patients had low free and total serum calcium, low total 25(OH)D, normal total 1,25(OH)D levels and lack of parathyroid hormone response. With remission of disease, serum calcium and vitamin D metabolites improved. However, nephrotic patients who do not attain complete disease remission continue to have low 25(OH)D level.
Conclusion
In this study, the vitamin D and calcium derangement observed at nephrotic syndrome presentation trended towards normalisation in remission. This suggested calcium and vitamin D replacement may not be indicated in early-phase nephrotic syndrome but may be considered in prolonged nephrotic syndrome.
Vitamin D Deficiency