Summary table of key inclusion/exclusion criteria across clinical trials
| WATER | WATER II | FRANCAIS WATER | OPEN WATER | |
| Inclusion criteria | ||||
| Prostate size | 30–80 mL | 80–150 mL | 30–80 mL | 20–150 mL |
| IPSS | ≥12 | ≥12 | ≥12 | Diagnosed with LUTS/BPH |
| Qmax | <15 mL/s | <15 mL/s | <15 mL/s | Diagnosed with LUTS/BPH |
| Exclusion criteria | ||||
| PVR | >300 mL | None | >300 mL | None |
| History of urinary retention | Yes | Only if catheter use exceeded 90 days | Yes | None |
| Previous prostate surgery | Yes | None | Yes | None |
| ASA Classification | III or higher | None | None | None |
ASA, American Society of Anesthesiologists; BPH, benign prostatic hyperplasia; IPSS, International Prostate Symptom Score; LUTS, lower urinary tract symptoms; PVR, postvoid residual urine.