You searched for "obstruction"

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Bladder outlet obstruction

Case 1 Define the zonal anatomy of the prostate: A, B and C What is the significance of Zone A and Zone C? Clasify the types of lower urinary tract symptoms (LUTS) Which investigations should be routinely undertaken for a...

Pain relief after removal of non-obstructive renal calculi

Non-obstructing stones are often not considered to be the source of pain, and probably most are not. This is because flank pain associated with a stone is typically caused by a stone that obstructs urinary flow, which increases intraluminal pressure...

Refluxing ureteral reimplantation

Obstructed megaureters may be managed with temporising stents, cutaneous ureterostomies, or in older children with ureteral reimplantation (usually if the child is over one year of age). Cutaneous ureterostomies have risks of stomal stenosis, infection and leakage problems over nappies...

Developing and validating a new nomogram for diagnosing BOO in women

Bladder outlet obstruction (BOO) in women is thought to be present in between 2.7% and 27%. Causes of BOO in women may be anatomical or functional. Yet, unlike the diagnosis in men, there is no standard definition for BOO in...

Lower pole vessels in children with PUJO: laparoscopic vascular hitch or dismembered pyeloplasty?

A crossing vessel accompanying pelvi-ureteric junction obstruction (PUJO) occurs in 25-50% of cases. The Hellstrom vascular hitch procedure was first described in 1951 and has regained popularity since 2003 in the era of laparoscopic surgery as it negates the need...

Delayed decompression of the infected obstructed kidney increases fatality

Well, we know this, I hear you all say. It is standard practice that the obstructed kidney with associated infection requires prompt decompression, and this is drilled into all UK trainees. It is surprising therefore that although we frequently deal...

Male infertility

Definitions Infertility is the inability of a sexually active, non-contracepting couple to achieve spontaneous pregnancy in one year [1]. About 15% of couples do not achieve pregnancy within one year and seek medical treatment for infertility. Semen parameters are standardised...

Upper tract abnormalities

Case 1 Figure 1. A 26-year-old female presents to A&E with loin pain. What do the CT images in Figures 1 (left, centre and right) show? What is the prevalence of the congenital anomaly in the general population, and is...

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...

Supranormal function on MAG-3 – what is its significance and how to predict?

Differential renal function (DRF) on MAG-3 scans is typically used in patients with pelvic ureteric junction obstruction (PUJ obstruction). Supranormal DRF is when the kidney with PUJO has higher DRF than the normal contralateral kidney. The authors in this study...

A guided guide to the guide wire

The use of guide wires has become a core skill utilised by urologists, especially within the field of endourology. The authors take us through the development of the guide wire and their current use in urology. The history The first...

Nocturia – the Cinderella of lower urinary tract symptoms

Nocturia is defined as waking during the night (at least once) to urinate. The important part of the definition relates to the necessity of sleep to precede the episode (although whether sleep must follow the episode is less clear). The...