Does urodynamics predict voiding after benign prostatic hyperplasia surgery in patients with detrusor underactivity?

Area of Science:

• Urology
• Lower Urinary Tract Symptoms
• Prostate Surgery

Background:

• Benign prostatic enlargement (BPE) and detrusor underactivity (DU) are common causes of lower urinary tract symptoms in men.
• Photovaporization of the prostate (PVP) is a surgical option for BPE.
• Predicting voiding outcomes after PVP in patients with DU can be challenging.

Purpose of the Study:

• To determine if urodynamic study (UDS) parameters predict voiding outcomes in men with DU and BPE undergoing PVP.
• To assess the impact of PVP on quality of life (QoL) in this patient cohort.

Main Methods:

• A retrospective analysis of 106 male patients with BPE and DU who underwent PVP between 2010 and 2015.
• Data collected included preoperative UDS parameters, prostate characteristics, and postoperative voiding status.
• UDS parameters included bladder capacity, detrusor contractility, maximum flow rate (Qmax), and postvoid residual (PVR).

Main Results:

• 90.6% of patients successfully voided post-PVP, while 9.4% remained in urinary retention.
• No specific UDS parameter reliably predicted successful postoperative voiding.
• Patients who voided successfully reported significant improvements in International Prostate Symptom Score and QoL.

Conclusions:

• Urodynamic study findings do not appear to predict voiding success after PVP in men with DU and BPE.
• PVP can lead to successful voiding and improved QoL in this population, irrespective of preoperative UDS results.
• The positive effects on symptom scores and QoL were durable up to 12 months post-surgery.