Prescrotal urethrotomy - behind the os penis

The technique of urethral hydropulsion will occasionally force the calculi out of the distal urethral opening or back into the bladder. Smooth muscle antispasmodic agents like "Isaverin®" or Buscopan®" should be given if the animal is not anaesthetised, and a urethral catheter passed to establish urine outflow. ................
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