Have a personal or library account? Click to login
Percutaneous electrochemotherapy in primary and secondary liver malignancies – local tumor control and impact on overall survival Cover

Percutaneous electrochemotherapy in primary and secondary liver malignancies – local tumor control and impact on overall survival

Open Access
|Feb 2022

Figures & Tables

Figure 1

(A) Solitary liver metastasis from a breast carcinoma in a challenging location between the left and right lobes of the liver, not amenable to surgical resection and progressive under various lines of systemic chemotherapy. The dimensions of the metastasis in segment IVa/b adjacent to segment VIII were 4 x 7 x 5 cm (volume 70 cc). (B) Position of the electrodes in the coronary reconstruction. The aim is to achieve the most uniform coverage of the target lesion by the electrodes. (C) Position of the electrodes in axial cross-sectional imaging. This image shows another essential requirement for the therapeutic success of ECT – the parallelism of the electrodes. (D) The most recent imaging control, complete two years after the ECT procedure, shows complete chemoablation of the entire metastasis, thus formally complete remission of the target lesion without residual or marginal recurrence.
(A) Solitary liver metastasis from a breast carcinoma in a challenging location between the left and right lobes of the liver, not amenable to surgical resection and progressive under various lines of systemic chemotherapy. The dimensions of the metastasis in segment IVa/b adjacent to segment VIII were 4 x 7 x 5 cm (volume 70 cc). (B) Position of the electrodes in the coronary reconstruction. The aim is to achieve the most uniform coverage of the target lesion by the electrodes. (C) Position of the electrodes in axial cross-sectional imaging. This image shows another essential requirement for the therapeutic success of ECT – the parallelism of the electrodes. (D) The most recent imaging control, complete two years after the ECT procedure, shows complete chemoablation of the entire metastasis, thus formally complete remission of the target lesion without residual or marginal recurrence.

Demographic

N%
PATIENTS18
GENDER
       M844.4%
       F1055.6%
DIAGNOSIS
       Colorectal cancer 38.9%
       Breast cancer 22.2%
       Hepatocellular cancer 11.1%
       Ovarian cancer 11.1%
       Anal cancer 5.6%
       Cancer of unknown primary origin (CUP) 5.6%
       Non-small cell lung cancer (NSCLC) 5.6%
TUMOURS TREATED21
LIVER METASTASES
       Synchronous 44.4%
       Metachronous 44.4%
       No211.2%
METASTASES LOCATION
       Liver only743.7%
       Liver + lung 21.5%
       Liver + bone 6.2%
       Liver + kidney 6.2%
       Liver + lung + bone + brain 6.2%
       Liver + bone + peritoneum 6.2%
       Liver + pleural + bone 6.2%
       Liver + retroperitoneal 6.2%
PREVIOUS TREATMENTS
       Systemic therapy1688.8%
       Liver surgery422.2%
       TACE 44.4%
       TACE + RFA 5.6%
       TACE + CP 5.6%
       CRYOTH 5.6%
       NO 38.9%
COMORBIDITIES*
       Cardiac diseases 33.3%
       Pulmonary diseases 16.7%
       Liver diseases 50.0%

Response to treatment, progression-free survival and overall survival according to different subgroups of analysis

CRPRSDPDNEPFS (mo)OS (mo)

N (%)N (%)N (%)N (%)N (%)Mean ± s.d.Mean ± s.d.
SIZE
       < 6 cm9 (90.0%)0001 (10.0%)12.0 ± 9.215.1 ± 8.0
       > 6 cm4 (36.4%)5 (45.4%)1 (9.1%)01 (9.1%)4.7 ± 5.47.9 ± 7.9
       P value 0.0483 0.02090.0322
HISTOLOGY
       Colorectal cancer4 (50.0%)2 (25.0%)002 (25.0%)7.3 ± 12.112.1 ± 12.1
       Breast cancer4 (80.0%)1 (20.0%)0009.8 ± 7.510.6 ± 6.9
       Hepatocellular cancer1 (33.3%)2 (66.7%)00010.3±10.115.0 ± 7.2
       P-value 0.3615 0.87810.8379
LOCATION
       Distant (> 10 mm)2 (100%)00006.5 ± 3.58.5 ± 0.7
       Close (> 1 mm)5 (62.5%)1 (12.5%)1 (12.5%)01 (12.5%)8.0 ± 7.410.7 ± 7.3
       Adjacent (< 1 mm)6 (54.5%)4 (36.3%)001 (9.2%)8.8 ± 9.810.2 ± 10.5
       P-value 0.6643 0.93640.9539

Lesions and treatment description

N%
LESIONS21100%
PLANNING MRI21100%
TYPE
       Hypervascular29.5%
       Intermediate1471.4%
       Hypovascular519.0%
CHALLENGING LOCATION*
       Yes1990.5%
       No29.5%
VESSELS OR BILE DUCTS SURROUNDING THE METASTASES
       Distant (> 10 mm) 19.0%
       Close (1 mm to 10 mm) 28.6%
       Adjacent (< 1 mm)1152.4%
PREVIOUS LOCAL TREATMENT ON THE LESION
       Local ablative therapy (LAT) 0%
       Transarterial chemoembolization (TACE) 28.6%
       Chemoperfusion (CP) 4.8%
       Treatment-naive1466.7%
TECHNICAL SUCCESS
       Yes2095.2%
       No14.8%
# ELECTRODES PER TREATMENT
       2 4.8%
       3 9.5%
       4 4.8%
       61676.2%
       814.8%

Response of target lesions evaluated between 1 and 3 months

RESPONSEN%
       Complete response (CR)1361.9%
       Partial response (PR)523.8%
       Stable disease (SD)14.8%
       Progressive disease (PD)00%
       Lost to follow-up29.5%
DOI: https://doi.org/10.2478/raon-2022-0003 | Journal eISSN: 1581-3207 | Journal ISSN: 1318-2099
Language: English
Page range: 102 - 110
Submitted on: Nov 19, 2021
|
Accepted on: Dec 24, 2021
|
Published on: Feb 11, 2022
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2022 Hannah Spallek, Peter Bischoff, Willi Zhou, Francesca de Terlizzi, Fabian Jakob, Attila Kovàcs, published by Association of Radiology and Oncology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.