Table 1: The surgical difficulty score of operative findings of Gall-bladder (GB), Calot’s triangle, GB bed.

Operative findings

Grade of inflammation (0-3)*

Score

Appearance of GB

1. Adhesion: None to diffuse

0-3

 

2. Edema and necrosis: None to severe

0-3

 

3. Contracted and fibrosis: None to severe

0-3

Calot’s triangle

4. Edema: None to severe

0-3

 

5. Fibrosis: None to severe

0-3

 

6. Scarring: None to severe

0-3

Gallbladder bed

7. Edema and necrosis: None to severe

0-3

 

8. Fibrosis: None to severe

0-3

 

9. Scarring: None to severe

0-3

Additional difficulty

10. Gangrene of GB

0-3

 

11. GB fistula

0-3

 

12. Impacted gallstone in cystic duct (Mirizzi’s syndrome)

0-3

SD-Grade 1: Score 0-3, easy procedure, SD-Grade 2: Score 4-12, moderate, SD-Grade 3: Score > 13, severe difficulty.