Table 2

 Cholangiographic and clinical variables among different categories of extrahepatic bile duct obstruction

VariableCast (n = 10)Stones (n = 11)Haemobilia (n = 11)
PTA related (n = 8)HCC related (n = 3)
PTA, percutaneous tumour ablation; HCC, hepatocellular carcinoma; T bilirubin, total bilirubin; PEIT, percutaneous ethanol injection therapy; PMCT, percutaneous microwave coagulation therapy; RFA, radiofrequency ablation; TAE, transarterial embolisation; PVTT, portal vein tumour thrombus; γ-GTP, gamma-glutamyl transpeptidase.
Period after initial PTA (months)7–72 (32)0–88 (27)0–42 (7.8)30–99 (55)
Period after latest PTA (months)0–12 (3)0–17 (6.5)02–10 (5.3)
T bilirubin (mg/dl)0.5–4.1 (2.0)1.0–15.9 (4.3)1.7–26.3 (7.9)8–29 (19.3)
Alkaline phosphatase (IU/l)146–1485 (553)248–1065 (417)229–787 (470)448–965 (625)
γ-GTP (IU/l)51–952 (268)34–253 (110)53–649 (267)111–494 (309)
Abdominal pain4/10 (40%)6/11 (55%)4/8 (50%)3/3 (100%)
Pancreatitis0/10 (0%)3/11 (27%)0/8 (0%)0/3 (0%)
Liver abscess5/10 (50%)2/11 (18%)0/8 (0%)0/3 (0%)
Gallstone2/10 (20%)10/10 (100%)3/8 (40%)0/2 (0%)
“Haemobilia sign”1/10 (10%)0/11 (0%)8/8 (100%)1/2 (50%)
Biliary strictures9/10 (90%)2/11 (18%)1/8 (13%)1/3 (33%)
Type of PTA (PEIT/PMCT/RFA)10/2/19/1/28/0/03/0/0
History of TAE8/10 (80%)6/11 (55%)2/8 (25%)1/3 (33%)
Size of HCC (cm)0–8.5 (2.9)0–7.5 (3.2)1.5–6 (3.4)2
PVTT1/10 (10%)1/11 (9%)2/8 (25%)1/3 (33%)
Additional therapyNoneNoneTAE 1Surgery for HCC 2, PTA 1
Immediate prognosis
    Recovered10/10 (100%)11/11 (100%)6/8 (75%)3/3 (100%)
    Died2/8 (25%)