Table 2 Therapy characteristics.

From: Impact of regular additional endobiliary radiofrequency ablation on survival of patients with advanced extrahepatic cholangiocarcinoma under systemic chemotherapy

Parameters

eRFA + CT (n = 40)

CT (n = 26)

P-value

Lines of chemotherapy

0.627

Only first-line

31 (77.5)

22 (84.6)

 

second-line or third-line

9 (22.5)

4 (15.4)

 

First-line protocol

0.920

Gemcitabine/cisplatin

29 (72.5)

20 (76.9)

 

Gemcitabine/oxaliplatin

2 (5.0)

1 (3.8)

 

Gemcitabine mono

9 (22.5)

5 (19.2)

 

Second-line protocol

0.165

FOLFIRI

4 (50.0)

1 (33.3)

 

Cetuximab/pembrolizumab

3 (37.5)

0 (0)

 

Capecitabine

1 (12.5)

2 (66.7)

 

N of first-line chemotherapy cycles

5.5 (3.0; 10.3)

6 (2; 8.3)

0.680

N of eRFA

2 (1; 4)

eRFA procedure

Endoscopic approach

38 (95.0)

 

Percutaneous approach

2 (5.0)

 

Emergency ERC

11 (27.5)

8 (30.8)

0.774

PTCD

0.249

Primary

2 (5.0)

2 (7.7)

 

After resection with alternated anatomy

1 (2.5)

8 (30.8)

 

Disease progression

1 (2.5)

1 (3.8)

 

SIRT

1 (2.5)

1 (3.8)

0.755

Photodynamic therapy

12 (30.0)

8 (30.8)

0.947

Prior surgical therapy

0.254

No surgery

19 (47.5)

10 (38.5)

 

Curative intended resection with recurrence

5 (12.5)

7 (26.9)

 

Exploration, but no curative surgery possible

13 (32.5)

9 (34.6)

 

Metastatic surgery

3 (7.5)

0 (0)

 
  1. Categorical data are presented as absolute frequency with relative frequency in parentheses. Numerical data are presented as median with under and upper quartile in parentheses.
  2. ERC endoscopic retrograde cholangiography, eRFA endobiliary radiofrequency ablation, FOLFIRI chemotherapy regimen including folinic acid, fluorouracil and irinotecan, SIRT selective internal radiation therapy.
  3. P values of categorical data refer to Chi-squared test or Fisher exact test between groups eRFA + CT and CT. P values of numerical data refer to Student unpaired t test or Mann–Whitney test between groups eRFA + CT and CT.