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Urethral Irrigation – Uses and Procedure

Urethral irrigation is a medical procedure in which the urethra is rinsed with a sterile solution. It is used to treat and prevent infections and to clear obstructions in the lower urinary tract.

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Things worth knowing about "Urethral irrigation"

Urethral irrigation is a medical procedure in which the urethra is rinsed with a sterile solution. It is used to treat and prevent infections and to clear obstructions in the lower urinary tract.

What is Urethral Irrigation?

Urethral irrigation (also referred to as urethral lavage or urethral flushing) is a clinical procedure in which a sterile rinsing solution is introduced into the urethra. The goal is to remove bacteria, secretions, blood clots, or foreign material from the urethra and lower urinary tract. It is primarily used in urology and nursing care settings.

Indications

Urethral irrigation is performed in a variety of medical situations, including:

Urethral infections (urethritis): Irrigation to support antibiotic therapy and reduce bacterial load.
Catheterization: Before or after urinary catheter insertion as infection prophylaxis.
Catheter maintenance: For indwelling catheters to prevent blockages caused by secretions or sediment.
Postoperative care: After urological procedures such as prostate resection or treatment of urethral strictures.
Removal of blood clots: To keep the catheter clear after urinary tract surgery.
Diagnostic purposes: Collection of urethral secretion samples for microbiological analysis.

Procedure

Urethral irrigation is performed under sterile conditions by trained medical professionals such as urologists or nursing staff. The typical steps include:

Patient education and informed consent.
Disinfection of the external genitalia and urethral opening.
Insertion of a sterile cannula, catheter, or irrigation syringe into the urethra.
Careful introduction of the irrigation solution (e.g., sterile saline, antiseptic solutions).
Collection and proper disposal of the expelled fluid.
Documentation and follow-up care.

Irrigation Solutions

Different solutions are used depending on the clinical indication:

Sterile isotonic saline (NaCl 0.9%): The most commonly used standard solution, well tolerated and gentle on tissue.
Antiseptic solutions: For example, polyhexanide or chlorhexidine in confirmed or suspected infections.
Local anaesthetic gels: To reduce discomfort and provide lubrication during instrument insertion.

Risks and Possible Complications

As with any medical procedure, urethral irrigation carries certain risks:

Infections: Improper technique may introduce bacteria into the bladder, causing cystitis or ascending urinary tract infections.
Mucosal injury: Excessive pressure or inappropriate instruments may damage the urethral lining.
Irritation and pain: A burning sensation or feeling of pressure during or after the procedure is possible.
Bleeding: Minor bleeding from irritated mucosa may occur.

Contraindications

Urethral irrigation should be avoided or only performed after medical consultation in the following situations:

Acute severe urethral injury or rupture.
Known severe urethral strictures (narrowings).
Known allergies to the irrigation solutions or disinfectants used.

References

European Association of Urology (EAU): Guidelines on Urological Infections. uroweb.org (2023).
Deutsche Gesellschaft für Urologie (DGU): Guidelines on Urinary Tract Infections and Urological Care Measures. www.dgu.de (2023).
Hooton, T.M. et al.: Diagnosis, Prevention, and Treatment of Catheter-Associated Urinary Tract Infection in Adults. Clinical Infectious Diseases, Oxford University Press (2010).

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