Cystoscopy – Procedure, Uses and Risks
Cystoscopy is a diagnostic procedure that allows direct visual examination of the bladder and urethra using a thin optical instrument. It is used to detect conditions such as bladder cancer, bladder stones, and recurring infections.
Wissenswertes über "Cystoscopy"
Cystoscopy is a diagnostic procedure that allows direct visual examination of the bladder and urethra using a thin optical instrument. It is used to detect conditions such as bladder cancer, bladder stones, and recurring infections.
What is Cystoscopy?
Cystoscopy is an endoscopic procedure that allows a urologist to directly examine the inner lining of the urinary bladder and the urethra. During the procedure, a thin, tube-shaped optical instrument called a cystoscope is carefully inserted through the urethra into the bladder. The cystoscope is equipped with a light source and a camera or lens system that transmits images to a monitor in real time.
The procedure is typically performed on an outpatient basis and takes only a few minutes. It is considered the gold standard in urological diagnostics and can serve both diagnostic and therapeutic purposes.
When is Cystoscopy Performed?
Cystoscopy is indicated in a variety of urological conditions and clinical scenarios. Common indications include:
- Blood in the urine (haematuria) – to identify the underlying cause
- Suspected bladder cancer (bladder carcinoma)
- Recurrent urinary tract infections
- Unexplained bladder symptoms such as pain or urgency
- Detection or removal of bladder stones
- Follow-up after bladder tumour surgery
- Assessment of urethral strictures (narrowing of the urethra)
- Diagnosis of bladder fistulas or congenital abnormalities
How is the Procedure Performed?
Prior to the procedure, the urethra is typically treated with a local anaesthetic gel to minimise discomfort. For more complex interventions, short general anaesthesia or spinal anaesthesia may be used. The cystoscope is then gently advanced through the urethra into the bladder. The bladder is filled with sterile irrigating fluid to improve visibility and allow thorough examination of the bladder wall.
During the procedure, tissue biopsies can be taken, small tumours can be removed, or other therapeutic measures can be performed. This expanded procedure is referred to as transurethral resection.
Flexible vs. Rigid Cystoscopy
Flexible Cystoscopy
The flexible cystoscope can be manoeuvred more easily through the urethra due to its bendable tip. It is often preferred for purely diagnostic examinations, as it allows a gentler approach and is typically performed under local anaesthesia only.
Rigid Cystoscopy
The rigid cystoscope provides superior image quality and enables simultaneous therapeutic interventions such as biopsies or minor surgical procedures. It generally requires deeper sedation or general anaesthesia.
Possible Risks and Side Effects
Cystoscopy is a safe and well-established procedure. However, some patients may experience the following symptoms or complications:
- Burning sensation during urination for a few hours after the procedure
- Mild blood in the urine (microhaematuria)
- Urinary tract infections (less common; antibiotic prophylaxis may be given)
- Rarely: injury to the urethra or bladder wall
Serious complications are rare. Patients are advised to drink plenty of fluids after the procedure to flush the urethra and bladder.
Clinical Significance
Cystoscopy is the most precise method for directly assessing the bladder mucosa. Compared to imaging techniques such as ultrasound or MRI, it enables direct visualisation and simultaneous tissue sampling. It is therefore indispensable in the early diagnosis of bladder carcinoma, which is one of the most common urological cancers worldwide.
References
- European Association of Urology (EAU) – Guidelines on Non-muscle-invasive Bladder Cancer, 2023. Available at: https://uroweb.org
- Tanagho, E.A. and McAninch, J.W. – Smith's General Urology. 18th ed. McGraw-Hill, 2013.
- National Institute for Health and Care Excellence (NICE) – Bladder Cancer: Diagnosis and Management, 2015 (updated 2022). Available at: https://www.nice.org.uk
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Related search terms: Cystoscopy + Bladder Cystoscopy + Cystoscopic Examination