Biomedical subjects
R H Whitaker
Publications and source records attributed to R H Whitaker.
Intermittent self catheterisation in adults.
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Initial screening of children with urinary tract infections: is plain film radiography and ultrasonography enough?
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Another look at diagnostic pathways in children with urinary tract infection.
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Pelviureteric junction obstruction in association with severe vesicoureteric reflux: a diagnostic dilemma.
Three patients are described who present the diagnostic and management dilemma of having a definite obstruction at the pelviureteric junction in association with marked vesicoureteric reflux. It is not always a simple decision as to whether the hydronephrosis should be operated upon before reflux or vice versa. The decision is based on an assessment of the severity of the reflux and the radiological or other interpretation of obstruction at the pelviureteric junction. Some guidelines are given and the management of the 2 conditions when occurring together is discussed.
A comparison of pressure flow studies and renography in equivocal upper urinary tract obstruction.
The ability of pressure flow studies and renography to assess obstruction was compared in 32 patients with equivocal upper urinary tract obstruction. The renogram failed to confirm the presence or absence of obstruction in 39 per cent of the cases as shown by the pressure flow study. Both studies have advantages, disadvantages and technical pitfalls.
Does good upper tract compliance preserve renal function.
We reviewed 111 pressure flow studies in an attempt to measure the compliance of each upper tract under study and to assess its clinical implications. Good compliance was seen in 64 dynamically unobstructed renal units as well as in 16 obstructed systems. The latter systems had less significant degrees of obstruction than a group of 31 obstructed systems with poor compliance. Obstruction with good compliance was associated with preservation of renal function as measured by diuresis renography, while impaired function was seen in systems with obstruction and poor compliance. The clinical implications of correlating the degree of obstruction, compliance and renal function are discussed.
Upper urinary tract compliance: its importance in obstructive hydronephrosis.
Improvements in diagnostic modalities over the last 15 years have meant that obstruction can now be diagnosed accurately in dilated upper tracts. However, it is no longer sufficient to diagnose obstruction in a hydronephrotic kidney; it is necessary to determine the likelihood of functional deterioration in that kidney by measuring its elastic distensibility (compliance). 111 pressure flow studies have been reviewed in an attempt to measure the compliance of each upper tract under study and to assess its clinical implications. Good compliance was seen in 64 dynamically unobstructed renal units as well as in 16 obstructed systems. These 16 obstructed systems with good compliance had less significant degrees of obstruction than a group of 31 obstructed systems with poor compliance. Obstruction with good compliance was associated with preservation of renal function as measured by diuresis renography whilst impaired function was seen in systems with obstruction and poor compliance. Systems with good compliance and obstruction may not necessarily need surgery to relieve obstruction but instead could be managed by avoiding a high fluid intake which is liable to produce a pressure rise in the kidney. Poor compliance or functional deterioration are indications for immediate relief of the obstruction.
Vesicoureteric reflux--a modern approach.
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The investigation and management of the megaureter.
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Urethral duplications and anterior urethral valves.
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The role of lower urinary tract dynamics in children.
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Is cervical spondylosis an occupational hazard for urologists?
Amongst 248 urologists who spend a substantial amount of their operative work performing endoscopic procedures and who were surveyed with reference to symptoms of cervical spondylosis, 118 admitted that they were, or had been, troubled by such symptoms (47.6%). A control group of 113 General Practitioners matched for age at qualification had no significantly fewer symptoms (43.4%). Similar numbers in each group had a history of neck injury, often of a sporting nature, and also had similar incidences of symptoms including pain down the arm. Significantly more urologists have current severe symptoms and more frequent attacks of trouble. Urologists offered a variety of advice on how to ameliorate these symptoms, which included attention to posture, the need for self-controlled motorised endoscopic tables, an endoscopic stool with wheels and the limitation of the number of transurethral prostatectomies per operating list.
Atypical (endometrial) carcinoma of the prostate.
Three cases of atypical (endometrial) carcinoma of the prostate are reported. In the light of the uncertain response to oestrogen therapy, all three patients were treated with radical radiotherapy.
Abnormal urethrogram in bulbar urethritis of male childhood.
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Effect of transplantation on non-renal effects of renal failure.
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