treatment of stone No %
Endoscopic stone retrieval:
     •Stone retrieval by basket
     •Stone retrieval by balloon
     •Combined basket & balloon
     •Mechanical internal lithotripsy
     •Mechanical external lithotripsy

83
31
38
9
20

13.2
5
6
1.4
3.2
Bad general condition & stenting with re-do ERCP after a weak 7 1.1
Rendez-Vous technique and endoscopic stone extraction. 9 1.4
Failed endoscopic retrieval and stenting prior surgery 16 2.5
Surgical treatment by Choledocho-lithotomy with T tube drainage of CBD 16 2.5
Table 4: Stone treatment techniques.