Triple guidance of choledochoscopy, ultrasonography, and computed tomography facilitates percutaneous catheter drainage of infected walled-off necrosis

Insights into Imaging

Table 1 Basal characteristics of 73 infected WON patients enrolled in this study

Variable	UC-PCD (n = 38)	CUC-PCD (n = 35)	p value
Age (years)	46.2 ± 12.2	44.0 ± 11.6	0.432
Gender (n [%])
Male	21 [55]	20 [57]	0.872
Female	17 [45]	15 [43]
Aetiology (n [%])			0.898
Alcohol	8 [21]	10 [29]
Gallstones	23 [61]	19 [54]
Idiopathic	5 [13]	4 [11]
Others	2 [5]	2 [6]
Classification of AP (n [%])			0.415
Severe	17 [45]	19 [54]
Moderately severe	21 [55]	16 [46]
Mild	0	0
Location of WON (n [%])			0.543
Anterior or above pancreatic region	5 [13]	4 [11]
Left anterior renal space	18 [47]	21 [60]
Right anterior renal space	15 [39]	10 [29]
Size of WON (cm³)	144.1 ± 20.8	156.2 ± 33.1	0.069
Inflammatory indexes
WBC (× 10⁹/L)	16.2 ± 2.6	16.9 ± 2.8	0.753
CRP (mg/L)	126.3 ± 36.4	133.3 ± 34.7	0.403
Severity rating
APACHE II	8.6 ± 1.9	8.4 ± 1.3	0.599
Ranson	3.9 ± 1.2	3.5 ± 0.9	0.110
CTSI	8.3 ± 1.8	8.2 ± 1.8	0.813

AP, acute pancreatitis; WON, walled-off necrosis; WBC, white blood cells; CRP, C-reactive protein; APACHE, acute physiology and chronic health evaluation; CTSI, computed tomography severity index