Table 1.
Patient demographics and outcomes
| Mean age (years) (range) | 6.5 (3–14) |
| Male:female | 7:5 |
| Mean single stone size in mm (range) | 7.1 (3–10) |
| Mean cumulative stone size in mm (range) | 11.9 (6–40) |
| Patients with multiple stones | 50% (6/12) |
| Stone location | |
| Lower calyx | 7 |
| Renal pelvis | 6 |
| Middle calyx | 4 |
| Ureter | 4 |
| Upper calyx | 2 |
| Access sheath used (9.5 F) | 4/12 (33.30%) |
| Ureteric stent (4.7 F) | |
| Preoperative | 5 (42%) |
| Postoperative | 8 (66%) |
| Mean length of stay (days) | 1.2 (1–2) |
| Complications | 0 |
| Stone-free rate at follow-up ultrasound | 11/12 (91.6%) (1 lower pole stone which was treated but due to difficult lower pole anatomy was not rendered stone free) |
| Stone composition | |
| Struvite (mixed) | 4 |
| Calcium hydrogen phosphate dihydrate | 2 |
| Calcium oxalate (mixed) | 3 |