Table 5.
Highlights of microwave ablation literature for colorectal liver metastases
| Ref. | Level of evidence | Year | Study details | 1 yr OS% | 3 yr OS% | 5 yr OS% | Median OS (mo) | Procedure-related complications |
| Shibata et al[59] | II-1 | 2000 | Prospective, randomized, 14 pts, 58 lesions | 71 | 14 | 27 | 14% (2/14) - one biliary fistula and one hepatic abscess | |
| Laparotomy (Azwell HSD-20M) | ||||||||
| Mean 4 lesions | ||||||||
| Mean 2.7 cm | ||||||||
| Liang et al[124] | II-2 | 2003 | Retrospective, 74 patients, 149 lesions | 91.4 | 46.4 | 29 | 20.5 | 4% (3/74) skin burns (in patients with tumors with extracapsular extension) |
| Laparotomy (Microtaze AZM-520) | ||||||||
| Mean 2 lesions | ||||||||
| Mean 0.8 cm max diameter | ||||||||
| Tanaka et al[125] | II-2 | 2006 | Retrospective, 16 patients, 35 lesions | 80 | 51 | 17 | 28 | 19% (3/16) Bleeding, biliary fistula, wound infection. (all patients underwent MWA via laparotomy, none percutaneous) |
| Laparotomy (Microtaze AZM-520) | ||||||||
| Mean 2 lesions | ||||||||
| Mean 0.8 cm max diameter |