The Role of Aquablation for the Surgical Treatment of LUTS/BPH

Learning curve in aquablation: an international multicenter study

OBJECTIVES

To describe and analyze the learning curve (LC) of aquablation for the treatment of benign prostatic obstruction and determine the number of cases needed to achieve acceptable surgical safety, efficiency, and efficacy.

METHODS

A retrospective analysis of prospectively maintained aquablation databases from France, Lebanon, and Spain was conducted. The combined LC of three surgeons was defined by trifecta and pentafecta outcomes. Trifecta reflected efficiency and safety: operative time < 60 min, hemoglobin reduction ≤ 2 mg/dL, and no 90 day Clavien-Dindo grade ≥ 2 complications. Pentafecta reflected effectiveness: percent reduction in International Prostate Symptom Score (IPSS) and ejaculation preservation. The combined LC was plotted using a moving average with polynomial fitting.

RESULTS

The cohort included 175 consecutive patients. Median (IQR) prostate volume was 70 (50-91) cc, and baseline IPSS was 23 (18-27). The achievement of trifecta exceeded 50% after 4 cases, and 70% after 50 cases. Pentafecta achievement exceeded 50% after 38 cases. Logistic regression showed significant improvement in hemoglobin reduction and ejaculation preservation. Grade ≥ 2 complication was not affected by experience, and neither was 3 month %IPSS reduction as 94% of patients showed ≥ 50% symptoms' improvement.

CONCLUSION

Aquablation is associated with a quick learning curve for the defined trifecta and pentafecta outcomes. It provided effective LUTS relief and low complication rates independent of surgeon experience. Hemoglobin drop and ejaculatory function preservation were the two factors influenced by the surgeons' LC. Training to reduce operative time, standardization of hemostasis techniques, and early assistance to improve veru-protection zone planning are keys to quicker learning.

Current surgical procedures for benign prostatic hyperplasia and impression of new surgical modalities

Background:

Surgery is considered the most effective treatment for Benign prostatic hyperplasia (BPH) and Transurethral resection of prostat (TURP) is considered the gold standard. The goal of this study is to assess the surgical interventions used in Saudi Arabia, the difference in surgical procedures done depending on age and years of experience and the participant's impression on the new modalities in the management of BPH.

Methodology:

An online survey using Google Forms was sent to the participants. The data were collected during Saudi Urological Association Annual Meeting February 2019. Additional data were gathered 2 months later. The study was closed in May 2019. No incentives were provided to participants.

Results:

A total of 65 (54.1% response rate) urologist participated in the survey, of whom 41.5% of respondents were aged <40 years, while 40% of them aged between 40 and 60 years. Forty-seven (72.3%) out of 65 were consultants. The essential investigations used by most participants prior to surgical interventions are prostate specific antigen, urine culture, urinalysis, and abdominal ultrasound. The most used surgical interventions are unipolar transurethral resection (TURP), Bipolar TURP, and open prostatectomy. About 50% of respondents preferred open prostatectomy for prostate size above 100 g. In general, 40%–50% of participants believe that urethral lift, Rezum, Aquablation, prostate artery embolization, and robotic simple prostatectomy are useful options.

Conclusion:

TURP continues to be the main intervention for prostate sizes <100 g. Open prostatectomy is widely used intervention for prostate sizes more than 100 g. New modalities gained little acceptance among urologist practicing in Saudi Arabia. Hands on workshops may help in educating urologists and introduce these new modalities for the future use.