Meatal stenosis
| Classification according to ICD-10 | |
|---|---|
| N35 | Urethral stricture |
| N35.9 | Meat stenosis NOS |
| ICD-10 online (WHO version 2019) | |
As meatus stenosis (of Latin meatus , way, path ' and Greek στένωση stenosi , German , narrowing' ) refers to the narrowing of the urethral orifice .
causes
Meat stenosis can be congenital or acquired through injury and inflammation . In some cases, the tightness can also be due to a benign or malignant tumor . After circumcision of the penile foreskin, meat stenosis is not infrequently known as a possible complication, with a frequency of up to 9-10% or even 11%, depending on the study.
Symptoms
Although male meat stenosis is more common, it can generally affect both men and women. Female meatal stenosis is associated with a congenital malformation and can manifest itself through infections of the urethral tract and bed-wetting. The main symptom of male meatal stenosis is a weakened urine stream, inadequate emptying of the bladder, urinary tract infections , painful urination and a twisted or split urine stream can occur. In the case of tumor diseases, blood may be added ( hematuria ).
Diagnosis
First, a physical exam is necessary. The constriction can often be seen with the naked eye. Furthermore, the degree of tightness must be measured using a so-called urethral calibration. Here, plastic or metal rods (so-called bougies ) of different diameters are inserted into the urethra and the extent of the tightness is determined. Furthermore, the urodynamic relevance must be clarified via a urine stream measurement with residual urine determination . A urethraloscopy should also be performed to rule out urethral tumors .
therapy
Here is a surgery the treatment of choice, as other methods have shown no long-term success. Often a slit ( meatotomy ) is sufficient. In the case of severe or complicated constrictions, a reconstruction of the urethral opening, the so-called meatus plastic , may be necessary. If urethral tumors are the cause, the surgical procedure depends on their dignity (nature of the tumor).
literature
- Rudolf Hohenfellner, Ernst J. Zingg: Urology in clinic and practice. Volume 2. Thieme, Stuttgart 1983, ISBN 3-13-612201-1
