Table 1.

Decrease in cyst size at follow up after percutaneous evacuation (PEVAC), catheter time (days), and hospital stay, related to the occurrence of cystobiliary (CB) fistulas plus cyst infection in patients with multivesicular echinococcal cysts in the liver. In patient No 8, cyst content was partially evacuated. Patient Nos 9 and 10 had univesicular cysts

Patient No	Cyst size before PEVAC (cm)	Cyst size after PEVAC (cm)	Catheter time (days)	Hospital stay (days)	Follow up (month)
1* CB	11	0	43	38	14
2† CB	6.6	0	126	55	24
3† CB	9	0	28	29	28
4* CB	6	0	35	41	18
5‡ CB	14	0	32	35	25
6† CB	20	0	113	37	21
7‡	12.7	0	13	14	26
8	13	4	3	8	30
9	16	1	7	11	12
10	16	1.5	12	13	9
11† CB	15	2.9	73	50	4
12† CB	18	1	128	20	4
All patients	13.1 (6–20)	2.4 (1–4)	51 (3–128)	29.3 (8–55)	17.9 (4–30)
CB fistula	12.5 (6–20)	1.9 (1–2.9)	72.3 (28–128)	38.1 (20–55)	17.3 (4–28)
No fistula	14.4 (12.7–16)	2.2 (1–4)	8.8 (3–13)	11.5 (8–14)	19.3 (9–30)

*Spontaneously or †secondarily infected cysts, or ‡cyst cavity infection after PAIR.