Laser lithotripsy using dusting technique (low energy, high frequency) for symptomatic upper urinary tract stones

African Journal of Urology

Table 4 Comparison between baseline parameters with stone-free rate

Baseline and operative parameters	Outcome parameters Stone-free rate		p value
Baseline and operative parameters	Yes (n = 55)	No (n = 5)	p value
Stone size	1.48 ± 0.45	2.34 ± 0.90	< 0.001
HFU	790.71 ± 300.30	832.80 ± 280.03	0.764
Stone number
Single	48/50 (96%)	2/50 (4%)	0.007
Multiple	7/10 (70%)	3/10 (30%)