Radwan 2020.

Study characteristics
Methods	Study design: parallel randomized controlled study Dates when study was conducted: January 2016 to January 2018 Setting: single center/national Country: Egypt
Participants	Inclusion criteria:men complained of LUTS with an IPSS score of 8 to 35 (8 being moderate and 35 being severe), uroflowmetry with an average flow ≤ 10 mL/s, and a prostate volume less than 100 mL by TRUS Exclusion criteria: men with elevated kidney functions (1.5 mg/dL), with allergy to intravenous contrast media, unfit for surgery, with prostatic adenocarcinoma, with previous history of prostatic or urethral operations, with signs of the decompensated bladder (e.g., bladder diverticulum), with signs of upper urinary tract infection revealed by pelvic abdominal ultrasound were excluded Total number of participants randomly assigned: 60 Group A (PAE) Number of all participants randomly assigned: 20 Age (years): 63.0 ± 7.2 Prostate volume (mL): 58.7 ± 23.4 PSA (ng/mL): not reported IPSS: 27.0 ± 5.0 Qmax (mL/s): 9.2 ± 4.8 Group B (TURP) Number of all participants randomly assigned: 40 Age (years): 62.0 ± 9.0 Prostate volume (mL): 60.1 ± 21.5 PSA (ng/mL): not reported IPSS: 26.5 ± 4.0 Qmax (mL/s): 8.3 ± 5.7
Interventions	Group A: PAE Group B: TURP (monopolar or bipolar) Follow‐up: 6 months
Outcomes	Urologic symptom scores How measured: IPSS Time points measured: baseline, 1 and 6 months Time points reported: baseline, 1 and 6 months Subgroups: none Retreatment How measured: participants with a surgical procedure at follow‐up Time of measurement: NR but likely for follow‐up period Time of reporting: likely cumulative incidence Major and minor adverse events (including acute urinary retention) How measured:Clavien‐Dindo classification Time points measured: at baseline, 1, 3, and 6 months Time points reported: likely cumulative incidence Subgroup: none Relevant outcomes not reported in this study Quality of life Erectile function Ejaculatory function Indwelling urinary catheter (pre‐specified for each group)
Funding sources	Not reported
Declarations of interest	None
Notes	Protocol: not available Language of publication: English
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Judgement: not described.
Allocation concealment (selection bias)	Unclear risk	Judgement: not described.
Blinding of participants and personnel (performance bias) Subjective outcomes	High risk	Judgement: not described; blinding highly unlikely to have taken place.
Blinding of outcome assessment (detection bias) Subjective outcomes	High risk	Judgement: not described; blinding highly unlikely to have taken place.
Blinding of outcome assessment (detection bias) Objective outcomes	Low risk	Judgement: objective outcomes likely not affected by lack of blinding.
Incomplete outcome data (attrition bias) Urologic symptom scores/Quality of life	Low risk	Judgement: all randomized participants were included in the analysis.
Incomplete outcome data (attrition bias) Major adverse events/minor adverse events	Unclear risk	Judgement: all randomized participants were included in the analysis.
Incomplete outcome data (attrition bias) Retreatment	Low risk	Judgement: all randomized participants were included in the analysis.
Incomplete outcome data (attrition bias) Acute urinary retention	Low risk	Judgement: all randomized participants were included in the analysis.
Incomplete outcome data (attrition bias) Indwelling catheter	Unclear risk	Judgement: all randomized participants were included in the analysis (catheter removal time: TURP [third postoperative day], PAE [fifth postoperative day]).
Selective reporting (reporting bias)	Unclear risk	Judgement: protocol was not found, the outcomes at prespecified time point (likely 1 month) were omitted.
Other bias	Low risk	Judgement: not detected.