Premium
Laparoscopic microwave thermosphere ablation of malignant liver tumors: An analysis of 53 cases
Author(s) -
Zaidi Nisar,
Okoh Alexis,
Yigitbas Hakan,
Yazici Pinar,
Ali Noaman,
Berber Eren
Publication year - 2016
Publication title -
journal of surgical oncology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.201
H-Index - 111
eISSN - 1096-9098
pISSN - 0022-4790
DOI - 10.1002/jso.24127
Subject(s) - medicine , ablation , microwave ablation , lesion , prospective cohort study , radiology , surgery
Background and Objectives Microwave thermosphere ablation (MTA) is a new technology that is designed to create spherical zones of ablation using a single antenna. The aim of this study is to assess the results of MTA in a large series of patients. Methods This was a prospective study assessing the use of MTA in patients with malignant liver tumors. The procedures were done mostly laparoscopically and ablation zones created were assessed for completeness of tumor response, spherical geometry and recurrence on tri‐phasic CT scans done on follow‐up. Results There were a total of 53 patients with an average of 3 tumors measuring 1.5 cm. Ablations were performed laparoscopically in all but eight patients. Morbidity was 11.3% (n = 6), and mortality zero. On postoperative scans, there was 99.3% tumor destruction. Roundness indices A, B, and transverse were 1.1, 1.0, and 0.9, respectively. At a median follow‐up of 4.5 months, incomplete ablation was seen in 1 of 149 lesions treated (0.7%) and local tumor recurrence in 1 lesion (0.7%). Conclusions The results of this series confirm the safety and feasibility of MTA technology. The 99.3% rate of complete tumor ablation and low rate of local recurrence at short‐term follow up are promising. J. Surg. Oncol. 2016;113:130–134 . © 2015 Wiley Periodicals, Inc.