It consists in assessing the extent of the urethral lumen not completely obliterated and the distance of the urethral sub-stenosis of the external urethral meatus.
It provides useful information for the choice of therapeutic strategy to be adopted.
It is performed with semirigid catheters, of size adequate to what is intended to be studied on a case-by-case basis. In the woman for the calibration of the external urethral meatus, the use of “bougie à boule” is indicated which, for their particular design, allow to highlight the degree of shrinkage possibly present.
Preparation for intervention:
Antibiotic prophylaxis is deemed useful in men; not indispensable in the calibration of only the external meatus in women.
Type of anesthesia:
Type of hospitalization:
None, if it is limited to a sole calibration and not a dilatation (see 58.6 Urethral Dilatation).