Predictive model of biliocystic communication in liver hydatid cysts using classification and regression tree analysis

Table 1 Cyst' characteristics, surgical procedures and operative findings on patients with liver hydatid cyst developing biliocystic communication.

Variables	Number of subject	%
Number of cysts
One	104	65.4
Two	31	19.5
Three and more	24	15.1
Location of the cyst in the liver
Anterior segment: III, IV, V, VI	48	30
Posterior segment: I, II, VII, VIII	111	70
Maaouni's distribution of the cyst¹⁹
Cyst in the segment IV and/or I	12	7.5
Cyst in the Segment II and/or III	13	8.2
Cyst in the Segment V and/or VI	15	9.5
Cyst in the Segment VII and/or VIII	75	47
Multiple cysts	44	27.8
Diameter of the cyst
≤10 cm	49	31
>10 cm	110	69
Gharbi's morphological type of the cyst
Type I	18	11.3
Type II	14	8.8
Type III	75	47.2
Type IV	46	29
Type V	6	3.7
Biliary duct dilatation	25	15.7
Other Hydatid cyst outside the liver
One abdominal organ	3	2
Abdominal hydatidosis	11	7
Lung	8	5
Surgical treatment
Conservative	133	83.6
Radical	26	16.4
Cyst wall (pericyst)
Soft	1	0.6
Fibrotic or calcified	158	99.4
Biliary fistula treatment
Suture	107	67.3
Catheterisation	32	20.1
Drainage	20	12.6
Residual cavity management
Capitonage	22	14
Omentoplasty	25	15.9
Drainage	58	36.9
Capitonnage + drainage	52	33.1
Common bile duct act	21	13.2

ISSN: 1471-2482