Cystometry and Cystometrogram

Cystometry is a diagnostic procedure used to evaluate bladder function, specifically its ability to store and release urine properly. It is an essential tool in assessing conditions like urinary incontinence and neurogenic bladder dysfunction.

Understanding Cystometry

Cystometry involves measuring bladder pressure and volume as it fills with fluid. The procedure typically consists of three phases:

• Filling Phase – Fluid is introduced into the bladder to assess its capacity and compliance.
• Storage Phase – Bladder pressure is monitored to identify abnormal contractions.
• Voiding Phase – The patient is asked to void, and pressure readings are recorded.

Cystometrogram Interpretation

The cystometrogram (CMG) is the graphical representation of bladder pressure and volume changes. Interpretation of the CMG can help diagnose various conditions:

• Detrusor Overactivity: Characterized by involuntary bladder contractions leading to urgency and frequency.
• Detrusor Underactivity: Weak bladder muscle contractions resulting in incomplete emptying.
• Impaired Compliance: Poor bladder adaptability causing increased pressure at lower volumes.

Clinical Significance

Cystometry assists in tailoring treatment strategies for patients with bladder dysfunctions, including medical management, physical therapy, and surgical interventions. Proper interpretation of the cystometrogram ensures accurate diagnosis and effective patient care.