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Basic Urology

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Atallah A. Shaaban<br />

39 <strong>Basic</strong> <strong>Urology</strong>: History Taking<br />

Chronic Retention of Urine<br />

Causes: Long standing incomplete obstruction<br />

A) Mechanical : BPH, prostate cancer<br />

B) Functional: Neuropathic flaccid bladder.<br />

- Large amounts of residual urine exist.<br />

- When the vesical pressure exceeds the urethral resistance, the patient<br />

can pass some urine or dribble continuously. This is called false or<br />

overflow incontinence.<br />

- The Differentiation between acute and chronic urine retention is<br />

shown in table 5.<br />

Complications: Bilateral hydroureteronephrosis & uremia.<br />

Treatment:<br />

- Urethral catheterization is done if upper urinary tract deterioration<br />

exists.<br />

- Investigation for the cause.<br />

- Treat the cause.<br />

Table 5: Differentiation between acute and chronic urine retention.<br />

Acute retention Chronic retention<br />

Urination No urine Overflow<br />

incontinence<br />

Pain Severe, suprapubic, bursting Painless<br />

Obstruction Complete Partial<br />

Suprapubic<br />

+ --<br />

tenderness<br />

Renal failure -- May be present

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