FIGURE 1.
FIGURE 2.
FIGURE 3.
Inclusion and exclusion criteria of the study
| Included | Excluded |
|---|---|
| Lesions not amenable to surgical treatment | Presence of extrahepatic metastases |
| Insufficient functional liver capacity after surgery | Suspected pregnancy |
| Patients unable to undergo general anesthesia due to comorbidities | Uncorrectable coagulopathy |
| Cases with the use of the particular antenna technology | Any other transarterial or percutaneous treatment |
Primary tumors of patients who underwent ablation due to liver metastasis
| n | % | |
|---|---|---|
| Colorectal | ||
| Colon | 32 | 38.5 |
| Rectum | 14 | 16.9 |
| Non-colorectal | ||
| Breast | 14 | 16.9 |
| Gastric | 8 | 9.6 |
| Pancreas | 5 | 6 |
| Ova rian | 5 | 6 |
| Lung | 3 | 3.6 |
| Endometrium | 2 | 2.5 |
Univariate analysis of factors associated with local tumor progression in MWA-treated patients
| Variables | p |
|---|---|
| Sex (male vs. female) | 0.372 |
| Age (≤ 65 vs. > 65 years) | 0.415 |
| White blood cell count (≤8 ×103/L vs. > 8 ×103/L) | 0.554 |
| Neutrophil-to-lymphocyte ratio (≤2 vs. > 2) | 0.297 |
| Primary tumor (HCC vs. metastasis) | 0.624 |
| Metastasis type (colorectal vs. non-colorectal) | 0.198 |
| Tumor location (favorable vs. unfavorable) | 0.339 |
| Tumor size (≤3 cm vs. > 3 cm) | 0.012 |
Clinical and demographic characteristics of the patients
| n | |
|---|---|
| Sex (female/male) | 49 (53.3%)/43 (46.7%) |
| Age | 59.8 ± 12.3 |
| Age group (≤ 65/> 65 years) | 60 (65.2%)/32 (34.8%) |
| White blood cell count | 6.5 ± 2.4 ×103/L |
| White blood cell count group (≤ 8 ×103 /L / > 8 ×103/L) | 70 (76.1%)/22 (23.9%) |
| Neutrophil-to-lymphocyte ratio | 2.6 (range: 1-10.4) |
| Neutrophil-to-lymphocyte ratio group (≤ 2 / > 2) | 23 (25%)/69 (75%) |
| Tumor location (favorable/unfavorable) | 109 (81.9%)/24 (18.1%) |
| Tumor size | 26.1 ± 13.4 mm |
| Tumor size group (≤ 3 cm / >3 cm) | 93 (69.9%)/40 (30.1%) |