Past exam of the medicine course of the University of Oxford / 1864 / Second examination / Therapeutics / 7

What measures would you adopt in treating a case of Spasmodic Stricture of the Urethra?

Relieve urinary retention promptly and gently, while distinguishing transient spasm from a fixed urethral stricture or another obstruction. The historical label spasmodic urethral stricture describes a functional component of obstruction; it does not prove that the urethra contains a permanent fibrotic narrowing.

Ask about the onset, previous attacks, instrumentation, injury, discharge, medications and previous difficulty passing urine. Examine for a distended painful urinary bladder, infection and trauma. Current bladder ultrasonography can confirm retention and estimate distension without repeatedly attempting instrumentation. A history of easy passage at other times may support a transient component, but neither that history nor failure to pass a catheter excludes an underlying anatomical lesion.

For the 1864 therapeutic framework, reassurance, warmth, a warm bath and relief of pain were intended to relax muscular spasm. An earlier clinical account documents opium and the warm bath, while warning that the bath was unreliable.^[ref] Period use of opium belongs to that historical account; it must not be assumed to be harmless, since opioids can themselves contribute to urinary retention and sedation. Such measures should not postpone drainage of a persistently overfilled urinary bladder. A lubricated catheter, handled by a skilled operator, should be advanced gently rather than forced through resistance. Producing bleeding or a false passage can convert an initially functional problem into substantial injury.

Current guidance calls for immediate catheterisation in acute urinary retention, with attention to contraindications and the cause. Suspected urethral trauma, major resistance or repeated failure calls for specialist help, not escalating force. Depending on the findings, guided urethral catheterisation or suprapubic catheterisation may be appropriate. The latter requires a suitably localised distended urinary bladder and assessment of contraindications; it is not an instruction for blind puncture.^[ref][ref]

After decompression, address the precipitant: infection, painful local inflammation, medication effects, a fixed urethral stricture or another outlet disorder. Recurrent attacks merit investigation rather than repeated labelling as spasm. An incision or a course of repeated forceful dilatation is not justified merely by the word spasmodic. ^[ref] The principle common to the historical and modern reasoning is to remove the obstruction with the least injury; modern assessment makes the anatomical and infective distinctions more reliable.