Assessing Micturition, sexual function, and endoscopic outcomes one year after Aquablation: a single center prospective study

Abstract

Introduction: Morphological changes in the prostatic urethra and bladder cavity resulting from Aquablation treatment are still unknown. This study aims to assess the safety and efficacy of Aquablation within one-year post-surgery, focusing on both functional and endoscopic outcomes.

Methods: Prospective enrollment of patients undergoing Aquablation (10/2018-04/2023) included those with baseline International Prostate Symptom Score (IPSS) ≥ 10, prostate volume from 40 to 80 mL, and Qmax ≤ 12 mL/s. Functional outcomes were evaluated at 1, 3, 6, and 12 months using uroflowmetry (Qmax), and dedicated questionnaires. Cystoscopy at three months assessed ablation quality on a Likert scale (1-poor; 5-excellent). Measurements included cavity length post-treatment and preserved prostatic tissue length at the apex. Additional evaluations encompassed veru-montanum preservation, presence of residual fluffy tissue or mucous flaps, ureteral orifices and bladder trigone injuries.

Results: Out of 109 enrolled patients, one-year follow-up displayed significant improvements in Qmax (+ 103.08%), IPSS (-86.36%), and IPSS-QoL (-80.00%). Aquablation had no impact on erectile function and continence, preserving ejaculation in 96.3%. Of the 106 patients undergoing cystoscopy, prostatic urethra patency was satisfactory to perfect in 96.2%, with a median cavity length of 24 ± 8.2 mm. Residual median lobe was found in 11.3%, without significant impact on micturition outcomes. Positive outcomes included minimal fluffy tissue and mucosal flaps, and well-preserved ureteral meatuses, verumontanum, and bladder trigone.

Conclusions: Aquablation showed efficacy in solving urinary symptoms with minimal impact on ejaculation up to one year post-surgery. A three-month post-surgery endoscopic evaluation supports its safety, efficacy, and conformity with the ablative planning.

Keywords: Ejaculation; Lower urinary tract symptoms; Prostatic benign hyperplasia; Water jet ablation.