Achieving optimal fluid balance for a patient undergoing major surgery, especially transplant surgery, has always been the lofty goal of peri-operative care,1 which often proves to be an elusive target. While keeping the patient well hydrated improves organ perfusion, being too generous with fluids can result in morbidity, such...

Cryptococcosis is a well-recognised infection in immunocompromised patients, although its prevalence varies with the type of immune defect. We report a patient with myasthenia gravis (MG) on steroid therapy and non-insulin dependent diabetes mellitus (NIDDM) who developed cryptococcal meningitis and in whom a search for a persistent focus by...

Urogenital fistulas are a known but uncommon complication of gynaecological surgery, especially those involving a malignant process. Its incidence does not exceed 2%. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

To our knowledge this is the first reported case of an isolated vesicocutaneous fistula related to previous radiation therapy for recurrent vulvar cancer. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

Radiotherapy is the mainstay treatment for locally advanced carcinoma of the cervix. It is also administered as an adjuvant therapy to patients deemed at high risk for local recurrence after radical hysterectomy. This article is available only as a PDF. Please click on “Download PDF” on top to view the...

The above article highlights the insensitivity of urine microscopy compared with the Combur 9 test for detecting haematuria associated with urinary calculi. In the article, the equivalent microscopic RBC values for the Combur 9 are given as 5/ml (typo? it should be 5/µl) and 10 /ml (?10/µl) for intact...

Significant technological advances have been made in the management of ureteric calculi. The newer semirigid, fibreoptic ureteroscopes can now be passed with minimal trauma and in many cases without dilatation. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

The last decade has seen a progressive change in the style of management of severe acute renal failure (acute renal failure which requires the use of renal replacement therapy) as well as in the epidemiology of this condition. Severe acute renal failure (SARF) is now most commonly seen in...

Traumatic dislocation of the testes is uncommon. The first case was reported by Claubry in 1818 in Paris, when a 20-year-old soldier was run over by a wagon resulting in bilateral suprapubic dislocation of his testes. This article is available only as a PDF. Please click on “Download PDF” on...

Patients with renal or ureteric colic are commonly seen at our Emergency Department. We routinely check their urine for haematuria using the Combur 9 test (Boehringer Mannheim, Germany) alone without doing urine microscopy unless the patient shows pyuria on the Combur 9 test. This article is available only as a...

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...

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.

Staging of disease is important. It serves as a guide for further management and also for comparing the results of treatment. Traditionally this has been used for malignant disease. 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...

Acute retention of urine (ARU) is the commonest urological condition requiring emergency admission to hospital and is usually managed by urethral catheterisation. Previously, patients with long-standing bothersome symptoms and who present with first episode of ARU were offered transurethral resection of prostate (TURP). This article is available only as a...

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.

The management of the non-functional tuberculous kidney is controversial and ranges from surgical intervention to conservative treatment. Intra-renal scarring with stricture formation is common in the late stages of renal tuberculosis and results in greater loss of renal function than direct involvement by tuberculosis alone. This article is available only...

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...

The treatment of urinary calculi has changed tremendously since the introduction of extra corporeal shockwave lithotripsy (ESWL), percutaneous nephrostolithotomy (PCNL), and ureteroscopy over the past decade in our hospital. Patients previously requiring open surgical procedure are now treated successfully with these new therapeutic modalities. This article is available only as...

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...

Haematuria of any degree should never be ignored and, in adults, it should be regarded as a symptom of urological malignancy until proven otherwise. Mariani et al, in their evaluation of 1000 consecutive patients, revealed life-threatening lesions in 9.1% of cases. This article is available only as a PDF. Please...

Nitric oxide (NO) has been recognised as a nonadrenergic noncholinergic (NANC) inhibitory neurotransmitter at various sites in the nervous system. Its function as a NANC inhibitory transmitter has been documented in muscular and sphincter relaxation in the cardiovascular, digestive and urogenital system. This article is available only as a PDF....

Castleman’s disease (CD) was first proposed by Castleman in 1954. It is usually found in the mediastinum, but other sites have been described. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

As the population is growing older and the society getting more affluent, people are aiming for a better quality of life. This has resulted in greater awareness of erectile dysfunction (ED), thus increasing the number of patients approaching the doctor for consultation. This article is available only as a PDF....

Telemedicine is the use of telecommunication technologies to provide medical information and healthcare services. Early applications include medical use of the telephone and facsimile. This article is available only as a PDF. Please click on “Download PDF” on top to view the full 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...

Vesico-ureteric reflux (VUR, OMIM #193000), the name given to reflux of urine from the bladder into the ureter and towards the kidney, is believed to be due to a developmental abnormality of the ureteric bud during embryogenesis. Ureteral reflux has been known for centuries; in the 15th century Leonardo...

Bladder tumours frequently arise from the posterolateral wall of the bladder1 over the course of the obturator nerve. It is during transurethral resection of these tumours that direct electrical stimulation of the obturator nerve occurs. This article is available only as a PDF. Please click on “Download PDF” on top...

It is well known that T1 carcinoma of the prostate has varying biologic behaviour. Attempts to identify those at higher risk of progression have led to the subclassification into T1a (focal, low grade) and T1b (diffuse, high grade). This article is available only as a PDF. Please click on “Download...

Bladder cancer is the sixth most frequent malignant disease in the world. Superficial stages of the tumour are found in 75% to 85% of cases upon first diagnosis. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

Oncocytomas are neoplasms characterised by large epithelial cells with finely granular eosinophilic cytoplasm called oncocytes. They were first described by Zippel in 1942 and have subsequently been identified in the thyroid, parathyroid, salivary and adrenal glands. This article is available only as a PDF. Please click on “Download PDF” on...

The typical ureteric calculus presents with an acute onset of flank pain which may radiate to the groin. Intravenous urography (IVU) has classically been the gold standard for the diagnosis of urinary calculi. This article is available only as a PDF. Please click on “Download PDF” on top to view...

The introduction of extracorporeal shockwave lithotripsy (ESWL) in the 1980s revolutionised treatment of renal and ureteric calculi. Progress in the field of extracorporeal lithotripsy was paralleled by the introduction of smaller caliber ureteroscopes and various intracorporeal lithotripters. This article is available only as a PDF. Please click on “Download PDF”...

Intravenous regional anaesthesia (IVRA) has a reported success rate of between 94% and 98% for upper limb surgery. Limitations to its use include the quality of intraoperative anaesthesia, tourniquet pain and lack of adequate postoperative analgesia. This article is available only as a PDF. Please click on “Download PDF” on...

Prostate cancer is the most prevalent cancer among men in the United States. In Singapore, it is the sixth most common incidence of cancer among males and the age-adjusted rates have risen from 8.2 to 9.6 per 100,000 per year between 1987 and 1992. This article is available only as...

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...

Many medical schools worldwide have made the shift toward problem-based learning (PBL) medical education. Some of them employ these new techniques in only part of their teaching, and usually in the pre-clinical phases, to make basic sciences easier and more attractive. This article is available only as a PDF. Please...

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 6.9 per 100,000 per year for men and 1.7 per 100,000 per year for women in Singapore. This article is available only as a PDF. Please...

Open surgical removal had been the standard treatment for urolithiasis till the early 1980s when introduction of percutaneous techniques and extracorporeal shock wave lithotripsy (ESWL) revolutionised stone management. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

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...

Adrenal myelolipoma is a rare, benign tumour, usually an incidental finding. Spontaneous retroperitoneal haemorrhage resulting from this tumour is rare. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

Cystoscopy, supplemented by urine cytology, remains the gold standard in detecting primary and recurrent bladder cancer. Urine cytology, although highly specific, detects only 29% to 45% of bladder tumours and is subject to considerable inter- and intra-observer differences. This article is available only as a PDF. Please click on “Download...

Penile colour flow Doppler imaging (PCDI) is a non-invasive, accurate and cost-effective technique. It has better patient acceptance as compared to cavernosometry and cavernosography, and it does not involve any ionising radiation. This article is available only as a PDF. Please click on “Download PDF” on top to view the...

Percutaneous nephrostomy (PCN) is a well-established technique in the armamentarium of an interventional radiologist when dealing with urinary obstruction. It provides temporary relief in obstructive uropathy and stabilises the patients for subsequent definitive treatment. This article is available only as a PDF. Please click on “Download PDF” on top to...

Over the last 70 years, transurethral resection of prostate (TURP) has been used in the surgical treatment of benign prostatic hyperplasia (BPH) and is still considered the gold standard. With improvements in operative techniques, video endoscopy, anaesthetic care and intraoperative monitoring of fluid and electrolytes, rates of intraoperative and...

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...

Urodynamics or pressure flow studies (PFS) are defined as a functional assessment of the lower urinary tract (LUT) to provide a pathophysiological basis for urinary symptoms and signs. Advocates of PFS deem it a necessary investigation if continence surgery is contemplated, stating that the “bladder is an unreliable witness”...

The presence of more than 2 testicles is called polyorchidism. It is a rare anomaly. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

Leiomyomas of the urinary tract are exceedingly rare. They can, however, arise from almost any site within the genito-urinary tract, most commonly in the renal capsule and bilateral tumours are very rare. This article is available only as a PDF. Please click on “Download PDF” on top to view the...

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...

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...

The introduction of extracorporeal shockwave lithotripsy (ESWL) by Chaussy and his co-workers in 1980 revolutionised the management of urinary calculi. Since then, ESWL has become the modality of choice of many urologists for proximal ureteric calculi. This article is available only as a PDF. Please click on “Download PDF” on...

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...

Priapism is a pathological state of prolonged, generally painful erection, unassociated with sexual desire and not ending in ejaculation. Rare before the 1980s, this entity became more frequent after the introduction of vasoactive drugs for intracavernosal injections. This article is available only as a PDF. Please click on “Download PDF”...

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...

In recent years, rapid technological advancement in the education of the hearing-impaired has taken place. Early intervention is now possible with the advent of diagnostic equipment capable of objectively and accurately screening and confirming hearing loss even in neonates. No baby is too young to be tested. The use...

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....

Clear cell carcinoma is a rare low-grade carcinoma that occurs almost exclusively in the intra-oral minor salivary glands.1-11 Occasional cases have been reported in other sites.3,10-14 Various terms applied to this tumour reflect its histological diversity.1-3,9 The recognition and consequent reporting of this neoplasm increased significantly after the report...

A 2.5-year-old boy was referred to our clinic for abnormal genitalia and a febrile urinary tract infection (Escherichia coli >105 colony-forming units/mL). At birth, his parents were informed that he had a “bilobed scrotum and a deep perineal skin pit” that may pose hygiene and cosmetic issues. They had...

A 60-year-old previously healthy man with unremarkable medical history presented with a complaint of intractable flank pain for one day. The laboratory test results were within normal limits except for microscopic haematuria on urinalysis. This article is available only as a PDF. Please click on “Download PDF” on top to...

Cancer data can be abstracted manually by cancer registrars or extracted automatically from the electronic medical systems. There may appear to be nothing in common between a manual Cancer Registry dealing with a few hundreds of new cases a year, and a large, highly computerised Cancer Registry as both...

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...

Fournier’s gangrene is a surgical emergency. Treatment consists of fluid resuscitation, intravenous broad spectrum antibiotics and immediate surgical consultation with a view for early wound debridement and drainage. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

Benign prostate hyperplasia (BPH), one of the most common diseases of ageing men, affects the quality of life by interfering with normal daily activities and sleep patterns. The current treatment options for patients with lower urinary tract symptoms (LUTS) suggestive of BPH mainly depend on the severity of the...

Overactive bladder (OAB) is characterised by feelings of urgency to urinate, with or without incontinence and is usually accompanied by frequency and nocturia. These symptoms are due to involuntary contractions of the detrusor muscle. This article is available only as a PDF. Please click on “Download PDF” on top to...

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...

Thrombotic thrombocytopenic purpura (TTP) is a systemic disorder that presents acutely with multiple organ failure. Although defined classically as a syndrome with a pentad of features, it is accepted now that a diagnosis can be made with the dyad of microangiopathic haemolytic anaemia and thrombocytopenia. This article is available only...

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...

Prostate cancer is now the third most common cancer among Singapore males, with a world age-standardised incidence rate (ASIR) of 23.9 per 100,000 from 2003 to 2007. The average annual rate of increase between 1968 and 2002 was 5.6%, with a steeper increase seen in the last 10 years. This...

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....

Obstructive calculous disease of the kidney often results in infectious complications such as pyelonephritis and perinephric abscesses. Renojejunal fistula formation may occur as the inflammation becomes chronic. This article is available only as a PDF. Please click on “Download PDF” on top to view the full article.

Malaysia is a country with an intermediate burden of tuberculosis (TB) with a prevalence of 121 cases per 100,000 population per year. TB usually presents with fever, chronic cough, weight loss and lack of appetite, dypsnoea and night sweats. This article is available only as a PDF. Please click on...

Despite the introduction of more potent and uroselective antimuscarinic agents, many patients with neurogenic detrusor overactivity still suffer from refractory incontinence. Intradetrusor botulinum toxin injections had been shown to be safe and effective in treating such patients who had failed medical therapy. 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)...

Recent studies show a steady rise in the incidence of renal cell carcinoma (RCC). The increase had been attributed to screen-detected renal tumours in asymptomatic patients, leading to a corresponding stage migration to smaller localised renal tumours and better disease specific survival. Interestingly, the incidence of malignant renal neoplasms...

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”...

Benign prostatic hyperplasia (BPH) is one of the commonest diseases of ageing men. It can be associated with bothersome lower urinary tract symptoms (LUTS) that affect quality of life and it causes structural and functional changes in the bladder. Previous clinical guidelines had emphasised on managing symptoms; however current...

As infrastructure and policies were being put in place to combat COVID-19, we recognised that specialty-specific policies and protocols had to be drawn up as well. Similarly, the Renal Medicine Unit at the Singapore General Hospital, an academic medical centre, acted quickly to modify our services to (1) protect...