1.State-of-the-art in minimally invasive treatments for benign prostatic obstruction
Nico C. GROSSMANN ; Mohamad B. BERJAOUI ; Omer CHOUDHARY ; Benjamin PRADERE ; Bhaskar K. SOMANI ; Dean S. ELTERMAN
Investigative and Clinical Urology 2026;67(1):1-14
Benign prostatic obstruction (BPO), often caused by benign prostatic hyperplasia (BPH), significantly affects quality of life in aging men. While transurethral resection of the prostate remains a standard surgical treatment, its invasiveness and associated side effects have led to the development of minimally invasive surgical therapies (MIST) as alternatives. This narrative review summarizes current evidence on established and emerging MIST options, including Rezum, iTind, UroLift, CoreTherm, TPLA (transperineal laser ablation), Optilume BPH, and new stent-based, first-line interventional therapies (FITs), such as Zenflow Spring, Butterfly, ProVee System, Urocross, and FloStent. These therapies aim to relieve lower urinary tract symptoms with fewer complications, reduced recovery time, and better preservation of sexual function. Each technique varies in mechanism-thermal, mechanical, or pharmacological-and is suited to specific prostate anatomies and patient profiles. Clinical data support their efficacy in improving International Prostate Symptom Score, peak urinary flow rate, and quality of life scores, with durability ranging from one to five years depending on the modality. Adverse events are generally mild and transient, while rates of ejaculatory and erectile dysfunction remain low across most interventions. FITs offer potential for temporary or long-term decompression with minimal procedural requirements. Overall, MIST broaden the therapeutic landscape for men with symptomatic BPO, particularly those who are unfit or unwilling to undergo conventional surgery. As the field evolves, these interventions contribute to a more personalized, functionpreserving approach in BPH management.
2.Radiographic Position of the Electrode as a Predictor of the Outcome of InterStim Therapy.
Abdullah Ahmed GAHZI ; Mai Ahmed BANAKHAR ; Dean S ELTERMAN ; Magdy HASSOUNA
International Neurourology Journal 2017;21(4):289-294
PURPOSE: Sacral neuromodulation (SNM) therapy is indicated for some refractory urological conditions. The electrode lead position in sacral x-rays during routine follow-up may predict the outcome of SNM therapy. To determine whether the radiographic position of the electrode in the sacral foramen predicted the long-term outcome of SNM therapy. METHODS: This was a retrospective study of patients who underwent InterStim SNM at Toronto Western Hospital by 2 surgeons from July 2013 to March 2014. The position of electrodes in relation to the sacral bone was assessed on follow-up sacral x-rays. In the lateral view, we determined the location of the radio-opaque marker of the electrode relative to the inner surface of the sacrum (P3, D3, P2, D2, P1, D1, P0, and D0). In the anteroposterior view, the angle between a line through the spinous process shadow and the electrode was measured (0°–30°, 30°–60°, 60°–90°, >90°, or medial). Dissatisfied patients were defined as those who did not improve based on a voiding diary or those who needed salvage treatment after SNM. The primary endpoint was to determine whether the electrode lead position on sacral x-rays predicted the outcome of SNM therapy. RESULTS: A total of 69 patients (61 female and 8 male patients) were included, with a median age of 55 years. Forty-two of the patients (60.9%) had refractory overactive bladder, 21 (30.4%) suffered from chronic urinary retention, and 6 (8.7%) had lower urinary tract symptoms and chronic pelvic pain syndrome. The univariate analysis did not show any correlation between SNM response and the electrode position or angle. Dummy regression analysis using response to implantation as the dependent outcome variable did not show any significance for any of the predictors. CONCLUSIONS: Our study did not show a correlation between the long-term response to SNM and the electrode position on follow-up sacral x-rays. In this study, electrode lead position in sacral x-ray at follow-up was not correlated with the outcome of SNM therapy.
Electrodes*
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Female
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Follow-Up Studies
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Humans
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Lower Urinary Tract Symptoms
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Male
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Pelvic Pain
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Retrospective Studies
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Sacrum
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Salvage Therapy
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Surgeons
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Urinary Bladder, Overactive
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Urinary Incontinence
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Urinary Retention
3.Sacral Neuromodulation in Patients With a Cardiac Pacemaker.
Abdullah A GAHZI ; Dean S ELTERMAN ; Magdy HASSOUNA
International Neurourology Journal 2016;20(3):270-272
The objective of this study was to describe our experience using sacral neuromodulation to treat urinary urgency, frequency, urge incontinence, and chronic urinary retention in patients with cardiac pacemakers. With the increasingly widespread use of InterStim for bladder function restoration, we are seeing more complex patients with multiple comorbidities, including cardiac conditions. Herein, we report 3 cases of individuals with cardiac pacemakers who underwent InterStim implantation to treat urinary conditions. This study is a case series of 3 patients with cardiac pacemakers who underwent sacral neuromodulation to treat refractory voiding dysfunction. The initial patient screening for InterStim therapy involved percutaneous nerve evaluation (PNE), in which a temporary untined lead wire was placed through the S3 foramen. Patients who did not respond to PNE proceeded to a staged implant. All patients in this study had a greater than 50% improvement of their urinary symptoms during the initial trial and underwent placement of the InterStim implantable pulse generator (IPG). Postoperative programming was done under electrocardiogram monitoring by a cardiologist. No interference was observed between the Inter-Stim IPG and the cardiac pacemaker. In this group of patients, sacral neuromodulation in the presence of a cardiac pacemaker appears to have been safe.
Comorbidity
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Electrocardiography
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Humans
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Mass Screening
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Urinary Bladder
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Urinary Incontinence, Urge
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Urinary Retention

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