A spectrum of immune dysregulation has been described following SARS-CoV-2 infections—from the cytokine storm in the acute phase, to hyperinflammatory syndromes that occur after the resolution of the initial infection.1 Multisystem inflammatory syndrome (MIS) was first reported in children in April 2020 as a hyperinflammatory syndrome with features similar...

Circular RNAs (circRNAs) are a group of endogenous RNAs characterised by their covalently closed-loop structures. These molecules are part of a large class of non-coding RNAs that includes microRNAs (miRNAs) and long non-coding RNAs (lncRNAs). CircRNAs were initially thought to be of low abundance and represent errors in splicing....

The Changi General Hospital is a new regional hospital in the eastern part of Singapore catering to a population of about 750 000. Planning of the hospital started since 1987 and construction began in 1992. This article is available only as a PDF. Please click on “Download PDF” on top...

Critical care medicine as a specialty has grown rapidly, both clinically and academically, over the past 25 years. In the USA, certification of competence has been awarded to graduates of the critical care medicine fellowship programmes since 1987. This article is available only as a PDF. Please click on “Download...

Hyperkalaemia is a common biochemical derangement in the intensive care unit reflecting a diversity of systemic perturbations such as acute renal failure, rhabdomyolysis, extracellular ionic shift from acid-base anomalies and tissue trauma. We report a rare and erstwhile unencountered cause of serum hyperkalaemia in our intensive care unit (ICU),...

The role of ventilatory support in acute lung injury is supportive, whilst the damage to alveolar-capillary membranes resolves and alveolar stability is restored. The optimum mode of support varies with individual patients, but none can reliably prevent progression of acute lung injury and high frequency ventilation (HFV) has been...

The origins of withholding medical support are found in ancient times. More than two millennia ago, Hippocrates (460 to 361 BC) stated that the role of medicine was “to do away with the suffering of the sick, to lessen the violence of their diseases, and to refuse to treat...

The intensive care unit (ICU) is a complex environment in which multidisciplinary expertise has been shown to enhance clinical outcomes. For example, the availability of full-time intensivists has been associated with improved survival. This article is available only as a PDF. Please click on “Download PDF” on top to view...

In 1980, Furchgott and Zawadzki demonstrated that the relaxation of isolated arteries to acetylcholine required the presence of endothelial cells. This response was mediated by a labile humoral substance termed endothelium-derived relaxing factor (EDRF). This article is available only as a PDF. Please click on “Download PDF” on top to...

Acute respiratory distress syndrome (ARDS) was first described by Ashbaugh et al in 1967. The original authors detailed the presence of tachypnoea, hypoxaemia, decreased respiratory compliance, bilateral pulmonary infiltrates and reported a survival rate of 42%. This article is available only as a PDF. Please click on “Download PDF” on...

Multisystem organ failure occurs in a large proportion of critically ill patients and is a major cause of death in this group of patients. The mechanisms responsible for the development of multisystem organ failure in the critically ill patient are unknown. This article is available only as a PDF. Please...

The first major general severity adjustment system, the Acute Physiology and Chronic Health Evaluation (APACHE) system, was published in 1981. Since then, APACHE, the Mortality Prediction Model (MPM), and the Simplified Acute Physiology Score (SAPS) systems have dominated the literature as general outcome prediction models. This article is available only...

Central to the combined diagnostic and therapeutic approach to the critically ill subject is the evaluation of both the basal physiologic status and its subsequent change over time consequent to a therapeutic intervention. This article is available only as a PDF. Please click on “Download PDF” on top to view...

The Western Pacific region includes a very diverse group of countries varying in their culture, economic development and per capita income, disease prevalence and medical traditions. The Western Pacific Association of Critical Care Medicine (WAPCCM) includes countries from Japan in the north to Australia and New Zealand in the...

Although special areas for postoperative patients existed 50 years ago, the modern specialty of Critical Care began during the polio epidemic of the 1950s. Prolonged hand ventilation, and positive or negative pressure ventilation, enabled maintenance of oxygenation until some patients developed sufficient recovery or compensatory processes to enable separation...

The use of caudal preservative-free morphine for postoperative analgesia in children has gained popularity since it was first described by Jensen. Several studies have reviewed its use for inguinal and genital surgery in children. This article is available only as a PDF. Please click on “Download PDF” on top to...

Persistent pulmonary hypertension (PPHN) is an important cause of neonatal mortality amongst infants who are of term or post-term gestation. The most severely ill of these infants would meet the criteria for the use of extracorporeal membrane oxygenation (ECMO). This article is available only as a PDF. Please click on...

Adenosine has been shown to be effective in terminating supraventricular tachycardia in adults and children. However, the use of adenosine has not been previously studied in Singapore children; hence we report our experience with the use of adenosine for the treatment and diagnosis of supraventricular tachycardia in children over...

Peripheral access by venous cut down, once popular in the 1950s and 1960s, has almost become obsolete with the introduction of the Seldinger technique for percutaneous insertion of central venous lines. In 1973, Shaw invented a technique of cannulating peripheral veins with silastic catheters, as an alternative approach to...

Malaria is an important and common infectious parasitic disease globally. It is associated with significant morbidity and mortality, especially in endemic areas. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

The study of poisoning has been relatively neglected in Singapore. A check through the Infogate database of the National University of Singapore Library revealed only seven papers on the epidemiology of poisoning since 1975 (the earliest year covered by the database) and none targeting those severe enough to require...

Drowning victims suffocate from submersion. This may lead to immediate death or, if they survive, brain damage if significant cerebral hypoxia is present. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

Diabetes insipidus (DI) is a syndrome characterised by the excretion of abnormally large volumes of dilute urine. It occurs uncommonly in neurosurgical patients, but is an important complication. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

Trauma is the fifth commonest cause of death in Singapore. In 1996, trauma contributed to 5.4% of mortality. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

Injuries form the fifth commonest cause of death locally. They accounted for 27 out of 100 000 deaths in 1993. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

Cardiopulmonary resuscitation (CPR) is widely practised for cardiopulmonary arrests with variable success. The initial intention was to defibrillate patients with ventricular fibrillation after acute myocardial infarction, to save those with “hearts too good to die”. This article is available only as a PDF. Please click on “Download PDF” on top...

The Acute Physiology and Chronic Health Evaluation II (APACHE II) and the new Simplified Acute Physiology Score (SAPS II) scoring systems are widely used prognostic tools in Intensive Care Units (ICUs). These scoring systems calculate a “risk of death” (ROD) for ICU patients while adjusting for case-mix with severity...

The Singapore General Hospital is a 1700-bedded tertiary hospital with subspecialty intensive care units (ICUs), i.e. Surgical ICU, Cardiothoracic ICU, Neurosurgical ICU, Medical ICU, Burns ICU, Medical ICU, Coronary Care Unit and Neonatal ICU. The SICU receives patients from various surgical disciplines (Table I). This article is available only as...

Critical care is costly as it is labour intensive and involves expensive life support technology. In the United States, the intensive care units (ICUs) use about 15% of the total hospital cost or about 1% of the gross national product. This article is available only as a PDF. Please click...

Does Critical Care Medicine exist and what defines its area of practice? Different countries have embarked on their own journeys of discovery, and have arrived at different paradigms—open versus closed models, specialty-based intensive care units (ICUs) versus general ICUs, internist versus pulmonologist or anaesthetist, and so forth. This article is...

Hyperparathyroidism is well recognised as a clinical problem that has a myriad of presentation. The classical presenting symptoms of hypercalcaemia have been well documented but there is an even greater awareness that many non-specific symptoms like fatigue, depression and constipation are related to hypercalcaemia. This article is available only as...

The relationship between lipid disorders and arthritis is manifold. Hyperlipidaemia may manifest clinically in the musculoskeletal system. In 1968, Khachadurian studied 14 families of whom 18 homozygotes of Type II hyperlipidaemia were identified. Ten of these patients experienced a migratory polyarthritis resembling rheumatic fever. This article is available only as...

In end-stage renal failure patients, maintaining adequate vascular access continues to be an ongoing challenge. Native arteriovenous fistulas or synthetic arteriovenous grafts are satisfactory long-term options. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

Predominantly a disease of hot and humid climates, malaria affects 270 million people worldwide annually, and has a mortality rate of 1%. The increasing morbidity and mortality attributable to malaria in recent years follows the loss, in the early 1970s, of the impetus and impact of the initial WHO...

Dunnil and associates first described the association of renal cell carcinoma (RCC) with acquired cystic kidney disease (ACKD) and end stage renal disease. The incidence of ACKD in dialysis patients ranges from 10% to 90% depending on the duration of dialysis. This article is available only as a PDF. Please...

A characteristic feature of renal cell carcinoma is the development of tumour thrombus extending into the inferior vena cava (IVC). This takes place in 4% to 10% of cases. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

Twenty years ago, the therapy of glomerulonephritis (GN) was relatively simple as it was believed that treatment with prednisolone should be confined to patients with minimal change nephrotic syndrome and lupus nephritis. For those patients who failed to respond, they were treated with oral cyclophosphamide. This article is available only...

End stage renal failure (ESRF) is the most common end stage organ disease treated with transplantation in Singapore. Though renal transplantation is the preferred treatment for ESRF, organ shortage is a major obstacle. This article is available only as a PDF. Please click on “Download PDF” on top to view...

Despite intensive research and intervention, trauma continues to be the leading cause of death during the first three decades of life in the USA, and currently ranks as the fourth leading cause of mortality with over 160,000 deaths each year. Mortality following trauma occurs in three distinct periods. This article...

Cytokines are peptide molecules that are responsible for intercellular signalling during immune activation events. Cytokines are responsible, in large part, for the regulation of all local and systemic immune inflammatory and immunoregulatory events. This article is available only as a PDF. Please click on “Download PDF” on top to view...

Proteinuria is considered a marker of renal disease. Traditionally it has been thought that proteinuria is the result of diseased glomeruli. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

Immunoglobulin (Ig) A nephropathy is the most common primary glomerulonephritis in various parts of the world, and it was detected in 25% of biopsy specimens taken from children in Kobe University Hospital. IgA nephropathy was initially considered to be a benign disease with a favourable prognosis, but as data...

Minimal change nephrotic syndrome (MCNS) is the most common cause of childhood nephrotic syndrome. It is characterised by the presence of gross proteinuria, hypoalbuminaemia, oedema and hyperlipidaemia. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

Although severe infection and sepsis are associated with high morbidity and mortality in the intensive care unit (ICU), the classification of severity or definition of sepsis as a syndrome is difficult. Traditional markers of infection such as body temperature and white blood cell count are unreliable and often misleading,...

There have been many reports on the use of conventional doses of cyclosporine A (CsA) in inducing remission among adults with minimal change nephrotic syndrome (MCNS), including those who fail steroids and cyclophosphamide therapy or who are steroid dependent and frequent relapsers. We report 3 cases which demonstrate the...

Gram-negative bacteria induced septic shock, a condition with high mortality, is frequently seen in critical care medicine. The wall of gram-negative bacteria consists of endotoxin, which is chemically composed of lipopolysaccharide, and is extremely biologically active. This article is available only as a PDF. Please click on “Download PDF” on...

The nail-patella syndrome (NPS) is a rare autosomal dominant disorder defined by the association of nail dysplasia, bone abnormalities and, frequently, renal disease. We report the course of pregnancy in a patient with such a condition. This article is available only as a PDF. Please click on “Download PDF” on...

Successful renal transplantation significantly improves the sexual and reproductive functions of women with end-stage renal disease and offers the best hope for those who wish to have children. Conception rate has been reported to improve dramatically from 1 in 200 dialysis patients to 1 in 50 women with a...

Symptoms and signs of thyroid dysfunction in the elderly tend to be atypical and may be mistakenly attributed to the ageing process. Currently, thyroid function tests are performed on patients who manifest signs and symptoms of overt thyroid disease or as part of the investigations for dementia in the...

Seasonal variations in the general population in some body functions and diseases incidences have been well-established (e.g., vitamin D levels, allergic rhinitis, blood pressure, levels of physical activity and energy expenditure, mental depression, peptic ulcer disease, and death from chronic heart failure). Similar patterns of seasonal variations in some...

Liver failure is clinically heterogeneous in aetiology, pathophysiology, clinical severity and prognoses. It can be divided into the following categories: acute liver failure (ALF), of which the most severe form is fulminant hepatic failure (FHF); acute-on-chronic liver failure (AoCLF), such as acute viral hepatitis flare in those with chronic...

Autoimmune processes have been implicated in the pathogenesis of schizophrenia. Several pieces of indirect evidence point towards a role of autoimmune processes in at least some cases of schizophrenia. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

Minimally invasive donor nephrectomy using laparoscopic techniques has become a very attractive method of procuring kidneys from live donors, compared to the traditional standard open surgical approach. The laparoscopic approach to live donor nephrectomy has advantages of decreased postoperative pain with lesser analgesic requirement, less surgical trauma, shorter hospitalisation...

Compared to in-hospital patients, patients treated in an intensive care unit (ICU) have the highest risk of contracting an infection. The risk correlates well with underlying and accompanying diseases and invasive monitoring. This article is available only as a PDF. Please click on “Download PDF” on top to view the...

In our quest to pursue knowledge regarding a patient’s illness or seek a cure for the disease, as doctors we have to derive the necessary answers through physical examination of the patient and investigations either at the bedside or the laboratory. We engage in research activities into the patient’s...

A 45-year-old Singaporean was seen for review by a nephrologist at a restructured hospital. She had been on follow up by a private nephrologist for management of chronic renal failure (CRF) due to diabetes mellitus. This article is available only as a PDF. Please click on “Download PDF” on top...

Streptococcus pneumoniae infection is the most common cause of community-acquired pneumonia worldwide.1 It has been associated with an approximately 10% rate of bacteraemia.2-4 Despite the advances in antibiotics, pneumococcal bacteraemia still carries a significant mortality rate.2-6 This article is available only as a PDF. Please click on "Download PDF" to...

Angiotensin converting enzyme inhibitors (ACEI) and angiotensin II receptor antagonists (ATRA) are both well established drugs utilised to help retard the progression of chronic kidney diseases to end-stage renal failure (ESRF), either by reducing proteinuria or even reversing mild renal impairment and restoring normal renal function in some cases....

During intense exercise, immune disturbances can occur through an increase in plasma pro- and anti-inflammatory cytokines and lipopolysaccharide (LPS) concentrations, and post-exercise leukocytosis and lymphocytopenia. The increase in LPS in the central circulation, also known as endotoxaemia, has been attributed to the leakage of LPS from the gastrointestinal tract...

Rheumatoid arthritis (RA) is a chronic autoimmune disease characterised by severe joint deformities due to bony erosions and tendon damage. The chronic inflammatory process is mediated through a complex cytokine network. The clinical expressions and outcome of the disease can vary among different ethnic groups, possibly depending upon the...

Systemic lupus erythematosus (SLE) is an autoimmune disease characterised by the production of high titres of autoantibodies and associated with a diverse array of clinical manifestations that include arthritis, vasculitis and nephritis. It is a complex disease, and genetic and environmental factors contribute to the disease pathogenesis. Abnormal Th1...

Maternal Group B streptococcal colonisation can lead to neonatal pneumonia, meningitis or sepsis. Neonatal Group B Streptococcal (GBS) sepsis is common, but infective endocarditis is rare. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

Pauci-immune crescentic glomerulonephritis (Pauci-immune CGN) is the most common cause of CGN. Thrombotic microangiopathy (TMA) defines a clinicopathological syndrome consisting of intraluminal platelet thrombosis in the microvasculature and the presence of fragmented red blood cells and thrombocytopaenia in the peripheral blood, and may be seen in haemolytic uraemic syndrome...

IgA nephropathy (IgAN) is the most common primary glomerulonephritis in Singapore1 and in many parts of the world, contributing significantly to the pool of end-stage renal failure patients annually. Despite more than 3 decades of research, the pathogenesis of the disease is still poorly understood. This article is available only...

Hand infections are common in the general population, and their management is usually uncomplicated. Several papers have noted that patients with diabetes mellitus have more severe infections, a different spectrum of bacteriology and a worse outcome. In our experience, of all patients with upper limb infections, those with end-stage...

Despite advances in haemodialysis technology over the past 40 years and rapid proliferation of clinical guidelines over the last decade promoting evidence-based practices, the mortality of end-stage renal failure patients on conventional thrice-weekly in-centre haemodialysis remains remarkably high. This article is available only as a PDF. Please click on “Download...

What do you see in this intravenous urogram? 1. Left lower ureteric calculus with proximal hydroureteronephrosis 2. Left duplicated ureter with lower ureteric calculus 3. Right triplicate ureter with left duplicated ureter 4. Right triplicate ureter with left duplicate ureter with left lower ureteric calculus with proximal hydroureteronephrosis This article is available only as a PDF....

End-stage renal disease (ESRD) is reaching epidemic proportions and is increasingly a public health issue due to the cost of providing care to these patients. There are many kidney disease databases and registries tracking and studying trends in the epidemiology and care of ESRD patients. This article is available only...

An 18-year-old male presented with complaints of abdominal pain. He had history of previous episodes of renal colic and passage of stones in urine. Renal function tests were deranged (blood urea levels of 72 mg/dL and serum creatinine levels of 3.2mg/dL). Abdominal X-ray (Fig.1) and non-contrast computed tomography (NCCT)...

Sepsis in children is a global health issue. The Global Health Observatory estimates that 58% of deaths in children under 5 years old are caused by infectious diseases. Mortality increases as sepsis progresses to septic shock. The implementation of childhood vaccination programmes and the advent of vaccines such as...

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 was the highest in France (16.1 per 100,000 man-years) and the lowest in India (0.9 per 100,000 woman-years) during 1988 to 1992. A trend analysis in...

According to the National Health Survey, the percentage of Singapore residents with diabetes mellitus (DM) aged between 18 and 69 years has risen from 8.2% in 2004 to 11.3% in 2010. DM can lead to a myriad of long-term health complications such as coronary heart disease, kidney failure and...

Clinical practice guidelines recommend different amounts of dietary protein intake for chronic kidney disease (CKD) patients. The recommended daily protein intake varies according to the level of kidney function (glomerular filtration rate (GFR) in mL/min per 1.73 m2 body surface area). It is unknown how effectively these recommendations perform...

An 18-year-old male presented to the emergency department of Khoo Teck Puat Hospital with knee pain and swelling while playing basketball. He was unable to bear weight. He had a surgical history of combined liver and kidney transplant 3 years ago. This article is available only as a PDF. Please click on “Download PDF”...

Paediatric sepsis is one of the main causes of childhood mortality.1 Globally, paediatric severe sepsis and septic shock accounts for 6.2% to 23.1% of paediatric intensive care unit (PICU) admissions, and mortality rates can be as high as 21.3% in North America and Europe to 50.0% in Asia.2-4 Of...

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Sepsis is a common and life-threatening medical condition which has high incidence and mortality rates. Health care professionals are increasingly familiar with this syndrome, and the public is increasingly conscious of its burden to society. A population survey conducted in Singapore in 2010 showed that 53 out of 1067...