Using cholecystokinin to facilitate endoscopic clearance of large common bile duct stones

Table 3 Extraction methods and success rate after extracorporeal shock wave lithotripsy/endoscopic retrograde cholangiopancreatography procedure n (%)

Extraction method	Success rate
	CCK group(n = 74)	No CCK group(n = 74)	P value
Balloon or Dormia basket	64/69	55/61	0.315
Mechanical lithotripsy	3/5	7/13	0.0231
Stone size
15-30 mm	59/60	57/62	0.415
≥ 30 mm	8/11	5/12	0.0382
Total	67 (90.5)	62 (83.8)	0.178

¹Analysis of extraction methods and success rate after ESWL/ERCP procedure in the two groups. Patients needing balloon or Dormia basket to clear CBD stones did not show a significant difference between the CCK group and the no CCK group, while mechanical lithotripsy usage was significantly different (P < 0.05);

²Successful clearance rate of patients with stones 15-30 mm was similar between the two groups, but clearance rate of patients with stones ≥ 30 mm between the two groups show significant difference (P < 0.05). CCK: Cholecystokinin; ESWL: Extracorporeal shock wave lithotripsy; ERCP: Endoscopic retrograde cholangiopancreatography.