Clinical Observation of UreTron Single-Probe Ultrasonic Intracorporeal Lithotripter for Ureteral Calculi

Figures & data

Figure 1 The UreTron single probe ultrasonic intracorporeal lithotripsy system. ((A) Equipment composition and connection status; (B) Negative pressure drainage and stone powder recovery device; (C) The single-handle, single probe lithotripsy rod suitable for ureteroscopic lithotripsy).

Figure 2 The intraoperative lithotripsy process with the UreTron single probe ultrasonic lithotripsy system. ((A and B) The Single-handle, single probe provided both ultrasound and ballistic lithotripsy performance intraoperatively; (C) Removal of crushed stone fragments by negative pressure suction).

Table 1 Comparison of General Information Between the Two Groups

	Number of Cases	Gender (M/F) (Case)	Age (Years)	BMI	^#Left/Right (Case)	^#Upper/Middle-Lower Segment (Case)	The Stone Diameter (mm)
U Group	31	19/12	45.48±13.30	26.50±3.40	18/13	11/20	12.40±2.75
H Group	36	23/13	41.19±11.23	27.06±3.81	19/17	17/19	13.09±2.86
t value	–	–	1.431	−0.631	–	–	−1.010
X^2 value	–	0.048	–	–	0.188	0.943	–
P value	–	0.826	0.157	0.530	0.664	0.331	0.316

Note: ^#The location of the calculi in the ureter.

Abbreviation: BMI, Body Mass Index.

Table 2 Comparison of the Operation-Related Indicators Between the Two Groups

	The Operation Duration (Min)	The Length of Hospital Stay (Day)	The Stone Clearance Rate (%)	Those Need the Flexible Ureteroscopy- Assisted Lithotripsy (Case)
U Group	60.52±14.16	7.87±1.86	29 (93.5%)	2 (6.5%)
H Group	66.94±16.40	8.69±2.03	27 (75%)	10 (27.8%)
t value	−1.703	−1.724	–	–
X^2 value	–	–	4.176	5.153
P value	0.093	0.09	0.041*	0.023*

Note: *P<0.05.

Table 3 Comparison of the Postoperative Complications Between the Two Groups

	The Operation-Related Complications (Case)				Other Complications (Case)
	Fever	Ureteral Stricture	Steinstrasse Formation	Total	Cardiocerebral Complications	Lower Extremity Thrombosis	Total
U Group	1	0	0	1	1	0	1 (3.2%)
H Group	5	2	2	9	0	1	1 (2.8%)
t value	–	–	–	–	–	–	–
X^2 value	1.199	–	–	4.623	–	–	–
P value	0.273	0.495	0.495	0.032*	0.463	1.000	1.000

Notes: *P<0.05; Cardiovascular complications as postoperative atrial fibrillation; Lower extremity thrombosis is lower extremity peroneal vein thrombosis.