Review efficacy and safety of minimally-invasive treatments for Low Urinary Tract Symptoms (LUTS) in patients affected by Benign Prostate Hyperplasia (BPH). We performed a systematic review of the literature from 1993 to 2022 leveraging original research articles, reviews, and case-studies published in peer-reviewed journals and stored in public repositories. Prostate artery embolization (PAE), transurethral needle ablation (TUNA), transurethral microwave thermotherapy (TUMT), high intensity focused ultrasound (HIFU), laser treatments and Cryoablation are valid and safe alternatives to the gold standard (surgery) in the treatment of LUTS in patients affected by BPH, with fewer undesired effects being reported.

Minimally Invasive Treatment in Benign Prostatic Hyperplasia (BPH)

To evaluate the safety and efficacy of prostatic artery embolization (PAE) using polyethylene glycol microspheres (PEGM) in patients with lower urinary tract symptoms secondary to benign prostatic hyperplasia (BPH).This multicentric prospective study enrolled 81 patients who underwent PAE with 400 ± 75 µm PEGM (HydroPearl®, Terumo, Japan). Results from baseline and 1-, 3-, 6-, and 12-month follow-ups were assessed for subjective outcomes including International Prostate Symptoms Score (IPSS), Quality of life (QoL), and International Index of Erectile Function, and objective outcomes such as peak urinary flow (Qmax) and post-void residual volume (PVR). The visual analogue scale, satisfaction questionnaire, prostatic volume, and prostatic specific antigen levels were also evaluated. Complications were documented using the modified Clavien-Dindo classification.Technical success was obtained in all patients. Clinical success was achieved in 78.5% of patients. Before PAE, 54.3% of patients had an indwelling catheter which was removed in 75% of them after procedure. A statistically significant decrease was observed in IPSS and QoL from baseline to 12 months (20.14 vs 5.89; 4.8 vs 0.63, P < .01), respectively. Objective outcomes also showed a statistically significant improvement in Qmax (+ 114.9%; P < .01), achieving a maximum urinary flow of 14.2 mL/sec, and PVR (decrease 58%; P < .05) at 12 months. Minor complications (Clavien-Dindo grades I-II) occurred in 13.6% of patients, without major complications observed.PAE with PEGM is safe and effective treatment in patients with symptomatic BPH, with a significant improvement in both subjective and objective outcomes. 

/pdf/prostatic-artery-embolization-pae-using-polyethylene-glycol-1ts54xi0.pdf

Prostatic Artery Embolization (PAE) Using Polyethylene Glycol Microspheres: Safety and Efficacy in 81 Patients

Prostate Artery Embolization and Transurethral Resection of the Prostate for Benign Prostatic Hyperplasia: A Cost-Effectiveness Analysis.

To evaluate the effects of center experience and a variety of patient- and procedure-related factors on patient radiation exposure during prostatic artery embolization (PAE) in three Scandinavian centers with different PAE protocols and levels of experience. Understanding factors that influence radiation exposure is crucial in effective patient selection and procedural planning. Data were collected retrospectively for 352 consecutive PAE procedures from January 2015 to June 2020 at the three centers. Dose area product (DAP (Gy·cm2)) was selected as the primary outcome measure of radiation exposure. Multiple patient- and procedure-related explanatory variables were collected and correlated with the outcome variable. A multiple linear regression model was built to determine significant predictors of increased or decreased radiation exposure as reflected by DAP. There was considerable variation in DAP between the centers. Intended unilateral PAE (p = 0.03) and each 10 additional patients treated (p = 0.02) were significant predictors of decreased DAP. Conversely, increased patient body mass index (BMI, p < 0.001), fluoroscopy time (p < 0.001), and number of digital subtraction angiography (DSA) acquisitions (p < 0.001) were significant predictors of increased DAP. To minimize patient radiation exposure during PAE radiologists may, in collaboration with clinicians, consider unilateral embolization, pre-interventional CTA for procedure planning, using predominantly anteroposterior (AP) projections, and limiting the use of cone-beam CT (CBCT) and fluoroscopy. • Growing center experience and intended unilateral embolization decrease patient radiation exposure during prostatic artery embolization. • Patient BMI, fluoroscopy time, and number of DSA acquisitions are associated with increased DAP during procedures. • Large variation in radiation exposure between the centers may reflect the use of CTA before and CBCT during the procedure.

Center experience and other determinants of patient radiation exposure during prostatic artery embolization: a retrospective study in three Scandinavian centers.

Prostate artery embolization (PAE) is an increasingly used minimally invasive treatment for lower urinary tract symptoms secondary to benign prostatic obstruction (BPO) OBJECTIVE: To analyze the impact of PAE on voiding and storage symptoms.Between July 2014 and May 2019, 351 consecutive men with BPO who underwent PAE were included in a single-center study.PAE is an interventional radiological procedure embolizing the prostatic arteries with microspheres.The primary endpoint represented assessment of the International Prostatic Symptom Score (IPSS) at baseline and at 1, 3, 6, 12, and 24 mo after PAE. Secondary endpoints comprised assessment of IPSS quality of life (QoL), International Index of Erectile Function, peak urinary flow rate, postvoid residual volume, prostate volume, and prostate-specific antigen at the same time points. Data were analyzed using standard statistical methods, generalized estimating equations (symptom improvement over time as odds ratios), and McNemar-Bowker test (degree of improvement compared between symptoms).Clinical success rates for PAE were 68%, 73%, and 66% at 1, 12, and 24 mo, respectively. The median IPSS improved significantly from 22 to 10 points after 2 yr (p < 0.001). Storage (-50%) and voiding (-58%) symptoms improved similarly (each p < 0.001), with nocturia decreasing least frequently but significantly (p < 0.001). After 1 and 2 yr, 35% (95% confidence interval [CI] 29-41%) and 30% (95% CI 21-40%) of patients reported alleviated storage, and 39% (95% CI 33-45%) and 38% (95% CI 29-49%) reported alleviated voiding symptoms, respectively. QoL improved from 5 to 2 points (p < 0.001). The main limitation is the number of patients lost during follow-up.PAE significantly improved voiding and storage symptoms to a similar extent. This study may aid in counseling patients about this minimally invasive BPO treatment.Prostate artery embolization (PAE) is a minimally invasive treatment option for patients with voiding and storage symptoms from benign prostate enlargement. Our analysis shows that PAE improves relevant lower urinary tract symptoms. 

Influence of Prostate Artery Embolization on Different Qualities of Lower Urinary Tract Symptoms Due to Benign Prostatic Obstruction.

To investigate the efficacy and safety of prostatic artery embolization (PAE) vs. transurethral resection of the prostate (TURP) in patients affected by benign prostatic hyperplasia (BPH). We also reviewed mean changes from baseline in PAE at selected follow-up points. PubMed, Web of Science, and Embase were searched up to May 1, 2020. Randomized controlled trials on PAE were collected according to specific inclusion and exclusion criteria. Meta-analyses were performed using RevMan 5.3, STATA 14, and GraphPad Prism 8. Pooled patient-reported scores and functional outcomes were calculated by using a fixed or random-effect model. Eleven articles met our selection criteria and ten independent patient series were included in the final analysis. Pooled estimates suggested no significant difference between TURP and PAE for patient-reported outcomes including International Prostate Symptom Score (2.32 (− 0.44 to 5.09)) and quality of life (0.18 (− 0.41 to 0.77)) at 12 months. PAE was less effective regarding improvements in most functional outcomes such as maximum flow rate, prostate volume, and prostate-specific antigen. Moreover, PAE may be associated with relatively fewer complications, lower cost, and shorter hospitalization. After the PAE procedure, the overall weighted mean differences for all outcomes except sexual health scores were significantly improved from baseline during follow-up to 24 months. PAE is non-inferior to TURP with regard to improving patient-reported outcomes, though most functional parameters undergo more changes after TURP than after PAE. Moreover, PAE can significantly continue to relieve symptoms for 24 months without causing serious complications. • PAE is as effective as TURP in improving subjective symptom scores, with fewer complications and shorter hospitalization times.
 • PAE is inferior to TURP in the improvement of most functional outcomes.
 • Improvements due to PAE are durable during follow-up to 24 months.

Efficacy and safety of prostatic artery embolization for benign prostatic hyperplasia: a systematic review and meta-analysis of randomized controlled trials.

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Efficacy and safety of prostatic artery embolization for benign prostatic hyperplasia: a systematic review and meta-analysis of randomized controlled trials.