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Polycystic ovary syndrome v.2023: Simplified diagnostic criteria for an East Asian phenotype

Polycystic ovary syndrome (PCOS) is a common endocrine condition affecting 6–19% of women of reproductive age, depending on the reference population and definition used.1,2...

Enhancing the accuracy of polycystic ovary syndrome diagnosis

Polycystic ovary syndrome (PCOS) is the most common endocrine disorder, experienced by 1 in 10 women of childbearing age. Its aetiology is multifactorial and...

Comparison of existing methods of low-density lipoprotein cholesterol estimation in patients with type 2 diabetes mellitus

Elevated low-density lipoprotein cholesterol (LDL-C) levels are a major risk factor for the development of atherosclerotic cardiovascular disease (ASCVD). A reduction in LDL-C levels...

Diabetes: Know thy foe

During the COVID-19 pandemic in 2022, Singapore’s Minister for Health Ong Ye Kung mentioned, “After the COVID-19 pandemic has passed, we need to tackle...

Non-alcoholic fatty liver disease screening in type 2 diabetes mellitus: A cost-effectiveness and price threshold analysis

Non-alcoholic fatty liver disease (NAFLD) is a growing epidemic and has become a major cause of liver-related mortality and indication for liver transplantations globally....

Functional improvement after inpatient rehabilitation in community hospitals following acute hospital care

Early inpatient rehabilitation therapy has been known to have beneficial impact on physical function and mobility, psychological status and cognitive function of patients following...

Diagnosis and management of polycystic ovary syndrome: Perspectives of clinicians in Singapore

Polycystic ovary syndrome (PCOS) is a common endocrine disorder estimated to affect 4–21% of women, depending on the diagnostic criteria used.1 Clinical manifestations of the...

Thyroid Storm Presenting as Jaundice and Complete Heart Block

Thyroid storm is defined as a severe and often life-threatening exacerbation of thyrotoxicosis which is usually characterised by hyperthermia, tachycardia, severe agitation and altered...

Hyperthyroidism with Gynaecomastia as the Initial Complaint: A Case Report

Gynaecomastia is not a commonly recognised feature among the myriad symptoms and signs associated with hyperthyroidism. A review of the literature disclosed only eight...

A Case Series of Paget’s Disease of Bone: Diagnosing a Rather Uncommon Condition in Singapore

Sir James Paget’s description in 1877 of “a form of chronic inflammation of bones” which now bears his name was based entirely on clinical...

A Case Report of a Patient with Bronchial Carcinoid Tumour and Late Presentation of Cushing’s Syndrome

Cushing’s syndrome is usually easy to recognise clinically. Determining the cause of non-iatrogenic Cushing’s syndrome is, on the other hand, often a diagnostic enigma. This...

Clinical Predictors of Nephritis in Systemic Lupus Erythematosus

Lupus nephritis is a common manifestation of lupus associated with significant morbidity and mortality. The use of cytotoxic agents has resulted in improved renal...

Measurement of Obesity by Anthropometry and Bioelectric Impedance Analysis: Correlation with Fasting Lipids and Insulin Resistance in an Asian Population

Obesity is a risk factor for cardiovascular disease. This risk is partially mediated by the correlation between obesity and other coronary artery disease risk...

A Study to Assess the Effect of Dietary Supplementation with Soluble Fibre (Minolest®) on Lipid Levels in Normal Subjects with Hypercholesterolaemia

Hypercholesterolaemia is one of the major risk factors in the development of coronary artery disease (CAD). In recent years, many non-prescription treatments have become...

Retinopathy of Prematurity in Very Low Birth Weight Infants

Retinopathy of prematurity (ROP), which could lead to visual impairment and blindness, is a recognised serious morbidity amongst surviving premature infants. The inverse relationship...

Regulation of Insulin Secretion by Nerves and Neuropeptides

The pancreatic islets of Langerhans were described by Paul Langerhans in 1869. They are distributed throughout the entire pancreas forming in adults approximately 1%...

The Use of the Laryngeal Mask Airway in Post-Tonsillectomy Haemorrhage—A Case Report

A 53-year-old man with a history of hypertension and asymptomatic Wolff-Parkinson-White syndrome was admitted to the hospital for an elective uvulopalatopharyngoplasty, tonsillectomy and bilateral...

Hypoglycaemia from Islet Cell Hyperplasia and Nesidioblastosis in a Patient with Type 2 Diabetes Mellitus—A Case Report

A 57-year-old woman was admitted to our hospital for perforated left tubo-ovarian abscess and found to have newly diagnosed diabetes with an admission blood...

Deep Vein Thrombosis after Total Knee Replacement

Western literature reports a very high incidence of deep vein thrombosis in its population especially after orthopaedic surgery. In total knee replacement without prophylaxis,...

Orlistat (Xenical) in the Management of Obesity

The term “obesity” implies an excess of adipose tissue (fat) and excess adiposity is a health risk. In most cases it develops in the...

The Molecular Pathogenesis of Obesity: An Unfinished Jigsaw Puzzle

Obesity is one of the most common health problems in Singapore with escalating prevalence, affecting about 6% of the Singapore population above 18 years...

1990-2000: Progress in Determining High Blood Pressure Genes

Essential hypertension and its complications, coronary heart disease, stroke and renal failure are leading causes of morbidity and mortality in western societies.1 While the...

A Rational Alternative for the Diagnosis of Diabetes Mellitus in High Risk Individuals

The “gold standard” for the diagnosis of diabetes mellitus has all along been the oral glucose tolerance test (OGTT). As diabetes mellitus defines a...

Evaluation of a Rapid Screening Test for Microalbuminuria with a Spot Measurement of Urine Albumin-Creatinine Ratio

In 1989, the St Vincent Declaration was formulated by all European countries to address the growing problem of diabetes, with the general goals of...

Graves’ disease after COVID-19 vaccination

Dear Editor, Case 1 was a 41-year-old man with a history of primary hyperthyroidism. At the time of diagnosis, thyroglobulin antibodies were elevated although no...

Severe Diabetes in Remission: A Singapore’s Perspective

Diabetic ketoacidosis is generally believed to be the result of an acute and severe degree of insulin insufficiency, classically occurring at the presentation of...

Urinary Retention in Hospitalised Older Women

Voiding dysfunction is a relatively common problem in hospitalised older patients. Up to one-third of hospitalised elderly were reported to have post-void residual urine...

Obesity in Singapore

The word obesity implies an excess of adipose tissue (fat) and not merely an excess of body weight. An increase in body weight may...

A Rare Cause of Syncope in a Patient with Diabetes Mellitus—A Case Report

Hypoglycaemia is a common medical emergency. It presents either with symptoms of neuroglycopaenia, such as episodes of visual blurring, confusion, convulsions and sometimes coma...

Body Mass Index Profile in Hong Kong Chinese Adults

Obesity is considered a chronic disease and not just a social stigma due to the associated morbidity and early mortality. Obesity has now become...

Problem-based Learning (PBL) as an Approach in the Teaching of Biochemistry of the Endocrine System at the Angeles University College of Medicine

The Angeles University College of Medicine (AUCOM) was established in 1983 with a curriculum that is conventionally teacher-centred. Biochemistry is a basic science subject...

Abdominal Complications after Cardiac Surgery

Despite intensive therapeutic efforts, both the incidence and mortality of gastrointestinal complications after cardiac surgery employing cardiopulmonary bypass (CPB) have not decreased during the...

46, XY Female—A Case Report

The phenotypic sex of an individual is usually male if that person’s genotype is 46, XY since the SRY gene on the Y chromosome,...

A Case Report of Primary Hyperparathyroidism with Severe Bony Involvement and Nephrolithiasis

Primary hyperparathyroidism is said to have evolved from a disease of “bones, stones and groans”, to one that is largely asymptomatic with a relatively...

Current Therapeutic Strategies for Type 2 Diabetes Mellitus

Type 2 diabetes mellitus is now recognised as a metabolic syndrome and although the treatment paradigm has shifted from one that focuses solely on...

A Twelve-year Review of Radical Cystectomies in Singapore General Hospital

Bladder carcinoma is the tenth most common cancer affecting men in Singapore. It is more common in men with an age-standardised incidence rate of...

Treating Thyrotoxicosis with Radioiodine

Iodine is an essential component of thyroid hormone and is actively taken up by thyroid follicles. This is the physiological basis for the use...

A Preliminary Evaluation of a Disease Management Programme for Patients with Diabetes Mellitus and Hypertension in a Primary Healthcare Setting

Chronic diseases are the main causes of morbidity and mortality in developed countries. In most developed countries, the problems of a rising prevalence of...

Thyroid Diseases in Pregnancy

Abnormalities of thyroid function associated with pregnancy encompass both hyperthyroidism and hypothyroidism. These may have been present before the onset of pregnancy, or occurred...

Gestational Diabetes Mellitus: A Call for Systematic Tracing

The prevalence of diabetes is increasing worldwide. In Singapore, the prevalence of diabetes has increased dramatically from 4.7% in 1984 to 8.6% in 1998....

Clinical Update on Deep Vein Thrombosis in Singapore

Deep vein thrombosis (DVT), and its acute complication–pulmonary embolism (PE), is one of the most important preventable causes of death in hospital patients. It...

Statins and Bone Morphogenetic Proteins: New Pathways in Bone Formation

Osteoporosis is a major public health problem causing considerable morbidity and mortality in Asian women. It is estimated that half of the world’s hip...

Comparing Fasting Plasma Glucose against Two-hour Post-load Glucose Concentrations for the Diagnosis of Diabetes Mellitus and Glucose Intolerance in Singaporean Hospital Patients

Prior to 1997, the diagnosis of diabetes mellitus in asymptomatic individuals was based upon the 1985 World Health Organisation (WHO) diagnostic criteria in which,...

Clinical Update on Osteoporosis

Fractures, the most serious complication of osteoporosis, are increasing and constitute an evolving public health problem in terms of disability, mortality and cost. A...

The Bone and Joint Decade 2000-2010: For Prevention and Treatment of Musculoskeletal Disease

The theme of this issue of the Annals, Academy of Medicine at the beginning of the year is suitably on osteoporosis. Osteoporosis, with its...

Osteoporosis—A Worldwide Problem and the Implications in Asia

Osteoporosis is a condition characterised by low bone mineral density, microarchitectural deterioration of bony tissue, and a consequent increase in fracture risk. With rapid...

Bone Fragility in Asian and Caucasian Men

Bone fragility in men has been receiving greater attention during the last few years. Epidemiological studies have been done in Caucasian and Asian populations. This...

Steroid-induced Osteoporosis

Corticosteroids are known to affect bone through multiple pathways (Fig. 1), influencing both bone formation and bone resorption, and these mechanisms have been reviewed....

Medical Treatment of Osteoporosis—Increasing Options

The current practice and management of osteoporosis differs greatly from even the recent past. Up to 15 years ago, bone mineral density (BMD) measurements...

Osteoporosis Risk Factor Assessment and Bone Densitometry—Current Status and Future Trends

Osteoporosis affects predominantly elderly women; although younger women and men may also be affected. Demographically, the number and proportion of the elderly (aged 65...

Osteoporosis in Relation to Menopause

Singapore has a rapidly ageing population. In 1990, only 6% of the population was above the age of 65 years but this percentage of...

An Asian Perspective to the Problem of Osteoporosis

Osteoporosis is regarded as an important public health problem in many Caucasian populations. Much of the research on epidemiology, diagnosis, treatment, genetic and molecular...

Osteoporosis: A Treatable Disease

Osteoporosis twenty years ago was a very different disease from what we know of it today. At that time a diagnosis of osteoporosis was...

Challenges in Perinatal Medicine

One of the significant milestones in the perinatal care in Singapore is the birth of the Perinatal Society of Singapore in March 1989. This...

The Diagnosis and Management of Hypercalcaemia

Hypercalcaemia is a relatively common clinical problem with the widespread use of routine biochemical screening. Population studies have suggested a prevalence of 3% in...

Adolescent Alcohol and Other Substance Use: Sharing the Australian Experience

The most common causes of morbidity in adolescence often have behavioural or social determinants, and can have enormous social and economic consequences for adolescent...

The Perils of Puberty

Adolescence is a biopsychosocial maturational process, with the biological changes including completion of linear growth and sexual maturation (puberty), maturation of enzyme systems such...

How Much do Diabetic Patients Know About Diabetes Mellitus and its Complications?

Diabetes mellitus (DM) is a common and growing healthcare problem in Singapore with a prevalence of 9% in 1998. Since the 1990s, the Ministry...

Unravelling the Mystery in a Case of Persistent ACTH-independent Cushing’s Syndrome

A Malaysian Chinese male patient, CMO, first presented at the age of 22 years with a 2-week history of severe spontaneous low backache with...

A Hyperthyroid Patient with Measurable Thyroid-stimulating Hormone Concentration – A Trap for the Unwary

Free thyroxine (FT4), total tri-iodothyronine (T3) and thyrotropin (TSH) are the commonly measured biochemical indices in the assessment of thyroid function in a patient...

Guidelines on Cardiac CT in Singapore (2006)

The heart is difficult to image because of its complex wall motion and variability of the cardiac cycle. Recent advances in 16 and 64-slice...

Factors Associated With Functional Decline of Hospitalised Older Persons Following Discharge From an Acute Geriatric Unit

Hospitalisation is a stressful event for the older person. The physiological changes associated with ageing, such as decreased muscle strength and aerobic activity, reduced...

Diabetes Outcomes in Specialist and General Practitioner Settings in Singapore: Challenges of Right-Siting

The long lasting debate on the role of generalists and specialists in the management of diabetes is still ongoing. Nonetheless, the last 3 decades...

Diabetes in Asia – From Understanding to Action

In the present pandemic of diabetes and obesity, 60% of the affected population will come from Asia. Between India and China, these two most...

Measurable Predictive Factors for Progression to AIDS among HIV-infected Patients in Singapore

The first case of human immunodeficiency virus (HIV) infection was detected in Singapore on 16May 1985. The number of newly diagnosed HIV/acquired immuno-deficiency virus...

Multimodal Antiemetic Therapy and Emetic Risk Profiling

In the last few years, hundreds of papers exploring the issue of postoperative nausea and vomiting (PONV) have been published. It has been estimated...

Factors Associated with Decompression and Strabismus Surgery in Thyroid Eye Disease

Thyroid eye disease (TED) is a visually and socially disabling condition. Newly diagnosed patients are often fearful of sight-threatening complications that include optic nerve...

Concomitant Coronary Artery Disease Among Asian Ischaemic Stroke Patients

Coronary artery disease (CAD) is the leading cause of mortality following ischaemic stroke. The annual risk for myocardial infarction following ischaemic stroke is approximately...

Magnesium, Zinc, Copper, Manganese, and Selenium Levels in Postmenopausal Women with Osteoporosis. Can Magnesium Play a Key Role in Osteoporosis?

Osteoporosis is a condition in which an increased risk of fracture takes place due to a reduction of bone mineral content. It occurs as...

The Relation Between Insulin Resistance Determined by Haemostatic Modelling and Slow Coronary Flow

Slow coronary flow (SCF) is a well recognised clinical entity, characterised by delayed opacification of coronary arteries in the presence of normal coronary angiogram....

Consequences of Right Siting of Endocrinology Patients – A Financial and Caseload Simulation

Right siting, defined as “patients treated in the most appropriate locations by medically competent teams at the lower possible cost”, has been on the...

Phaeochromocytoma the Great Mimicker: A Case Report

Phaeochromocytomas are catecholamine producing neuroendocrine tumours that can manifest a variety of symptoms which mimic other diseases. They are also known for their “rule...

Metabolic Control in Type 2 Diabetes Correlates Weakly with Patient Adherence to Oral Hypoglycaemic Treatment

Diabetes mellitus is one of the most common chronic diseases affecting Singaporeans. In 2004, 8.2% of the population was afflicted, placing a significant burden...

The Association Between Parental Socioeconomic Status (SES) and Medical Students’ Personal and Professional Development

In order to commit to their mission and placement requirement efficiently and effectively, policy-makers need to decide which types of students their training units...

Risk Factors for Conversion to Open Surgery in Patients With Acute Cholecystitis Undergoing Interval Laparoscopic Cholecystectomy

Laparoscopic cholecystectomy has become a routine surgical procedure in general surgical units all over the world. Its implementation has expanded dramatically and is considered...

Cerebral Microangiopathy in Patients with Non-insulin-dependent Diabetes Mellitus

Cardiovascular complications account for the highest rate of morbidity and mortality in patients with diabetes mellitus (DM), type 1 and type 2, respectively. The...

Elevated Level of Carbonyl Compounds Correlates with Insulin Resistance in Type 2 Diabetes

With rapid development of therapy, the mortality from acute complications of diabetes mellitus (DM) has decreased, but mortality from chronic complications like diabetic nephropathy...

Peripheral Arterial Disease in Community-based Patients with Diabetes in Singapore: Results from a Primary Healthcare Study

Peripheral arterial disease (PAD) is a significant complication of diabetes mellitus and accounts for the majority of amputations among these patients with diabetes. In...

Foot Screening for Diabetics

Prevalence of diabetes is high in Singapore (8.2%). Five per cent to 15% of diabetics developed foot ulcers. In fact, the lifetime risk for...

Evaluation of Intensive Care Unit-acquired Urinary Tract Infections in Singapore

Urinary tract infection (UTI) is one of the most common types of nosocomial infections encountered in the inpatient settings including intensive care unit (ICU)....

The Singapore National Healthcare Group Diabetes Registry – Descriptive Epidemiology of Type 2 Diabetes Mellitus

Diabetes mellitus is one of the most challenging global health problems in the 21st century. It is associated with excess mortality and significant morbidity...

Outbreak of Pandemic Influenza A (H1N1-2009) in Singapore, May to September 2009

The first cases of infection with a novel influenza A (H1N1) strain were reported in 6 cases in California and 2 cases in Texas...

Rationale for Redefining Obesity in Asians

Obesity is a condition characterised by an excess of body fats. According to the World Health Organization (WHO), there were about 1.6 billion overweight...

The Risk Factors for Ultrasound-diagnosed Non-alcoholic Fatty Liver Disease Among Adolescents

Non-alcoholic fatty liver disease (NAFLD) is increasing recognised as one of the most important causes of chronic liver disease in Western countries. It encompasses...

Comparison of Oral Glucose Insulin Sensitivity with Other Insulin Sensitivity Surrogates from Oral Glucose Tolerance Tests in Chinese

Patients with type 2 diabetes mellitus are at an increased risk of developing atherosclerosis and cardiovascular diseases leading to higher morbidity and mortality. These...

Kidney Cancer and Diabetes Mellitus: A Population-Based Case-Control Study in Taiwan

Kidney cancer accounts for 3% to 4% of all cancers. In a systematic review by Mathew and et al,2 the incidence of kidney cancer...

Prevalence of Chronic Kidney Disease in Adults with Type 2 Diabetes Mellitus

According to the National Health Survey, the percentage of Singapore residents with diabetes mellitus (DM) aged between 18 and 69 years has risen from...

Adipsic diabetes insipidus and SGLT2 inhibitor: A perplexing conundrum

A 70-year-old man with poorly controlled type 2 diabetes mellitus (DM), hypertension, hypercholesterolemia and alcohol dependence presented intoxicated, with occipital scalp lacerations after a...

Metformin use in patients with type 2 diabetes mellitus and chronic kidney disease: An evidence-based review

Diabetes is a chronic disease characterised by elevated levels of blood glucose. The most common type of diabetes is type 2 diabetes mellitus (T2DM)....