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Medical statistics for urologists: part 1

Part 2 of this article is available here, and Part 3 here Clinicians often consider statistics to be a dry and challenging subject. However, an understanding of the basics of statistic methods underpins the interpretation and use of current best...

Recent developments in bladder cancer – NMIBC

Every year, roughly 10,300 individuals are diagnosed with bladder cancer in the UK, making it the 11th most common cancer in the UK, and the eighth most common cancer in men [1]. Of those diagnosed with the disease, 75-85% will...

Pyonephrosis: is the kidney always doomed?

Pyonephrosis (Greek pyon ‘pus’ + nephros ‘kidney’) is defined in Campbell-Walsh Urology [1] as an infected hydro-nephrosis associated with suppurative destruction of the renal parenchyma which results in total or near total loss of renal function. The true incidence of...

Thermal ablative techniques for small renal masses

The incidence of renal cell carcinoma has increased over the past decade which can be partly attributed to the increased use of imaging modalities [1,2]. Nephron sparing procedures for the management of small renal tumours have gained popularity which include...

Male urethrograms

An ascending urethrogram is the best initial radiographic technique to image a male patient’s urethra and is indicated for strictures, fistulae, trauma and urethral obstruction [1]. It is quick and straightforward to perform and is performed using an 8Fr Foley...

Medical statistics for urologists: part 2 – probability and hypothesis testing

Following on from Part 1 of this series (Part 3 available here), this article aims to build on other analytical techniques commonly used within medical research, focusing on simple examples. Probability and testing Before exploring hypothesis testing, it is vital...

Botulinum toxin – from the sausage poison to urology

Botulinum toxin is the first biological toxin to be licensed for use in treating human disease and since its first therapeutic use in the early 1980s for strabismus has become widely used in the fields of ophthalmology, cosmetic surgery, migraine...

Testing radical prostatectomy in men with prostate cancer and oligometastases to the bone: a randomised controlled feasibility study

Prostate cancer is the commonest cancer and the second most frequent cause of cancer death in Western men [1]. The recent STAMPEDE data suggests a median survival of just 42.1 months in the control arm of metastatic men [2]. Current...

An overview of daytime wetting in children

It is estimated that daytime wetting affects one in seventy-five children over the age of five years [1]. Daytime wetting is commoner in younger children (1 in 7 aged 4.5 years, 1 in 20 aged 9.5 years) [1]. Many younger...

Bladder cancer: where are we with intravesical therapies?

In the United Kingdom, almost 10,500 new cases of bladder cancer were identified in 2013, with over 5000 deaths in 2012 [1]. Seventy percent of new cases will be non-muscle invasive bladder cancer (NMIBC) at diagnosis and therefore will be...

The role of transperineal template biopsies in the diagnosis of prostate cancer

The case In 2002, Mr A, a 64-year-old software engineer, was referred by his GP for further investigation of a raised prostate specific antigen (PSA) of 6.2. His prostate felt benign. He underwent transrectal ultrasound guided (TRUS) prostate biopsies. This...

Benign prostatic hyperplasia: what are the benefits and harms of various surgical management options?

Benign prostatic hyperplasia (BPH) is characterised by stromal and epithelial prostatic cell hyperplasia. The enlarged prostate may be associated with voiding and storage lower urinary tract symptoms (LUTS). These have been predominantly attributed to bladder outlet obstruction (BOO), assumed to...