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Urethral valve

The urethral valve, medically referred to as posterior urethral valves, is a congenital malformation in boys where membranous tissue flaps are present in the urethra. These flaps obstruct the normal flow of urine from the bladder, which can lead to serious problems in the urinary tract and kidneys if not treated in time. It is a rare but serious urological condition that requires early diagnosis and treatment.

Causes of urethral valve

Urethral valves are a congenital malformation, the exact causes of which are not yet fully known. They occur during fetal development when the tissue flaps in the urethra do not dissolve properly. This malformation can block urine flow and put pressure on the bladder and kidneys.

Symptoms of urethral valve

  • Weak or interrupted urine stream
  • Straining during urination
  • Recurrent urinary tract infections
  • Bloated abdomen due to an enlarged bladder
  • In severe cases, kidney failure or hydronephrosis (swelling of the kidneys due to urine retention)

Diagnosis of urethral valve

The diagnosis is often made in the prenatal phase through ultrasound when an enlarged bladder or fluid accumulation in the kidneys (hydronephrosis) is observed. After birth, the diagnosis is confirmed by further imaging techniques such as a micturating cystourethrogram (MCUG), where the urethra and bladder are made visible using contrast medium and X-ray.

Treatment options for urethral valve

  • Surgical Treatment: The most common treatment method is the endoscopic removal or incision of the urethral valves with a special instrument. This procedure is usually performed as early as possible to restore urine flow and prevent kidney damage.
  • Long-term Monitoring: Children with urethral valves often require long-term medical monitoring to ensure that kidney and bladder function remains normal and to prevent recurrent urinary tract infections or other complications.

Preventive measures for urethral valve

As it is a congenital malformation, there are no specific preventive measures. Early diagnosis and timely treatment are crucial to prevent long-term damage to the kidneys and bladder.


Common Patient Questions about the Urethral Valve

The first signs of a urethral valve can be difficulty urinating, a weak urine stream, frequent urination, or urinary retention. Parents may also notice changes in the child's behavior, such as restlessness or pain during urination.

The diagnosis of a urethral valve is usually made through a combination of medical history, physical examination, and imaging techniques such as ultrasound or urodynamic tests to assess the urinary tract and urine flow.

A urethral valve usually requires surgical treatment to remove the blockage. In rare cases, supportive measures such as bladder catheterization can be used to relieve the urinary tract, but this is not a permanent solution.

A urethral valve can significantly affect urination in children. It can lead to pain, frequent urge to urinate, and incomplete bladder emptying. In severe cases, it can also result in urinary retention and recurrent urinary tract infections.

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