Table 3. Patients’ Intraoperative and Postoperative Data .

Group	Laser (58)	Pneumatic (59)	P Value
Mean operation time (min)	34.6 (± 10.25)	25.47(±8.55)	<0.001
Complications
Mucosal damage	1	2	0.4
Residual or escaped stones	10	10	0.7
Mean hospital stay (day)			0.68
Out patient	20	22
One	28	28
More than one	10	9