Assessment of a new 150 W single-antenna microwave ablation system in the treatment of malignant liver tumors: The first worldwide experience


Berber E., AKBULUT S.

JOURNAL OF SURGICAL ONCOLOGY, cilt.125, sa.2, ss.168-174, 2022 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 125 Sayı: 2
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1002/jso.26692
  • Dergi Adı: JOURNAL OF SURGICAL ONCOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, EMBASE, MEDLINE
  • Sayfa Sayıları: ss.168-174
  • Anahtar Kelimeler: ablation algorithm, ablation power, malignant liver tumors, microwave ablation, LAPAROSCOPIC RADIOFREQUENCY ABLATION, LOCAL RECURRENCE, THERMAL ABLATION, RESECTION
  • Ankara Üniversitesi Adresli: Hayır

Özet

Background and Objectives Data in literature regarding liver microwave ablation pertain to systems delivering 100 W of maximum power. Our aim is to assess a new 150 W microwave system for liver tumor ablation. Methods This was an institutional review board-approved study of patients undergoing ablation of malignant liver tumors using a 150 W microwave system. Feasibility, safety, ablation algorithm, perioperative outcomes, and efficacy were analyzed. Comparison was made to historical patients undergoing ablation using a 100 W microwave system. Results There were 33 patients with 76 malignant liver lesions who underwent ablation with the 150 W system. Using a step-wise algorithm, ablations without intraoperative complications were performed for tumors ranging in size from 0.3 to 6.7 cm. Ninety-day morbidity was 5%, with no mortality. Compared to the 100 W system, the 150 W system shortened ablation time and created larger ablation zones with a single stick. Conclusion This first worldwide experience showed that surgical ablations could be safely created at 150 W using a step-wise algorithm with complete tumor destruction achieved at short-term follow-up. Advantages versus 100 W systems include reduction in ablation time and creation of larger ablation zones with a single stick.