Table 2.
Comparisons of perioperative characteristics after surgery according to prostate volume groups; <40 mL (n = 67), 40-80 mL (n = 200), and ≥80 mL (n = 131)
| Variable | Group 1 ePV <40 mL (n = 67) | Group 2 ePV 40–80 mL (n = 200) | Group 3 ePV ≥80 mL (n = 131) | P |
|---|---|---|---|---|
| Enucleated tissue weight (g) | 9.0 (6.0–12.0) | 20.0 (14.0–26.0) | 42.0 (32.0–61.0) | G1 vs. G2 <0.001 G2 vs. G3 <0.001 G1 vs. G3 <0.001 |
| Operation time (min) | 70 (55–85) | 100 (80–120) | 145 (125–175) | G1 vs. G2 <0.001 G2 vs. G3 <0.001 G1 vs. G3 <0.001 |
| Enucleation time (min) | 25 (20–35) | 45 (40–50) | 60 (50–70) | G1 vs. G2 <0.001 G2 vs. G3 <0.001 G1 vs. G3 <0.001 |
| TUEB efficiency (g/min) | 0.13 (0.09–0.18) | 0.20 (0.15–0.26) | 0.30 (0.23–0.38) | G1 vs. G2 <0.001 G2 vs. G3 <0.001 G1 vs. G3 <0.001 |
| Enucleation efficiency (g/min) | 0.36 (0.28–0.44) | 0.44 (0.34–0.60) | 0.73 (0.53–0.96) | G1 vs. G2 <0.001 G2 vs. G3 <0.001 G1 vs. G3 <0.001 |
| Catheterization duration (day) | 3 (2–4) | 3 (2–4) | 4 (3–5) | G1 vs. G2 0.383 G2 vs. G3 <0.001 G1 vs. G3 <0.001 |
| Hospitalization duration (day) | 5 (4–5) | 5 (4–5) | 5 (5–7) | G1 vs. G2 0.596 G2 vs. G3 <0.001 G1 vs. G3 <0.001 |
ePV, estimated prostate volume; IPSS, International Prostate Symptom Score; QoL, quality of life; Qmax, maximum flow rate; PVR, post-void residual volume; VV, voided volume. Data presented are median (interquartile range). In post hoc analysis, the statistical significance was considered when the Bonferroni adjusted p value was less than 0.017.