Optimal bladder diary duration for patients with suprapontine neurogenic lower urinary tract dysfunction

Area of Science:

• Urology
• Neuroscience
• Clinical Data Analysis

Background:

• Neurogenic urinary dysfunction, often secondary to suprapontine pathology, significantly impacts patients' quality of life.
• Accurate documentation of lower urinary tract symptoms (LUTS) is crucial for effective management.
• Traditional 7-day bladder diaries can be burdensome for patients, potentially affecting compliance and data completeness.

Purpose of the Study:

• To determine the minimum duration of a bladder diary necessary for reliable LUTS documentation in patients with neurogenic bladder dysfunction.
• To establish a shorter, yet reliable, data collection period for voiding parameters in this specific patient cohort.

Main Methods:

• Prospective data collection from 163 patients with suprapontine pathology and LUTS over 7 consecutive days.
• Analysis of daily micturitions, excreta per micturition, urgency and incontinence episodes, and voided volume.
• Comparison of consecutive day averages (2-6 days) against a 7-day average to identify the minimum reliable diary length.

Main Results:

• The first day's records showed significant differences and low correlation compared to the 7-day average.
• A 3-day bladder diary demonstrated comparable reliability to a 7-day diary for micturition frequency, excreta volume, urgency episodes, and voided volume.
• Incontinence episodes required more than 3 days for comparable documentation, showing a borderline difference.

Conclusions:

• A 3-day bladder diary is a reliable and efficient tool for documenting key LUTS parameters in neurogenic bladder patients.
• This shorter duration can optimize data collection without compromising reliability for most assessed parameters, enhancing patient compliance.
• Further investigation may be needed for precise documentation of incontinence episodes using shorter diary durations.