From: Impact of weight on stone-free rate during percutaneous nephrolithotomy
Group 1 | (%) | Group 2 | (%) | Group 3 | (%) | Group 4 | (%) | P-value | |
---|---|---|---|---|---|---|---|---|---|
Average (< 25) | Overweight (25–29.9) | Obese (30–39.9) | Morbid obese (> 40) | ||||||
Patients count(123) | 40 | 45 | 34 | 4 | |||||
Operative time(min) Median(range) | 46 (41–213) | 53 (41–220) | 61 (42–215) | 45 (43–55) | 0.034 | ||||
Fluoroscopy time(minutes) Median(range) | 5 (3.8–20) | 5.30 (4.30–20) | 9 (5.8–17) | 12 (6–13) | 0.0001 | ||||
Number of access | 0.134 | ||||||||
1 (86) | 31 | 77.5 | 31 | 68.9 | 20 | 58.8 | 4 | 100 | |
2 (17) | 7 | 17.5 | 4 | 8.8 | 6 | 17.7 | 0 | 0 | |
3 (20) | 2 | 5 | 10 | 22.3 | 8 | 23.5 | 0 | 0 | |
Access site | 0.066 | ||||||||
Multiple (21) | 4 | 10 | 5 | 11.1 | 11 | 32.4 | 1 | 25 | |
Upper calyces (2) | 1 | 2.5 | 0 | 0 | 1 | .95 | 0 | 0 | |
Middle calyces (13) | 2 | 5 | 8 | 17.8 | 3 | 8.8 | 0 | 0 | |
Lower calyces (87) | 33 | 82.5 | 32 | 71.1 | 19 | 55.9 | 3 | 75 |