Long-term outcome for colorectal liver metastases: combining hepatectomy with intraoperative ultrasound guided open microwave ablation versus hepatectomy alone
- Resource Type
- Authors
- Wei He; Nan Zheng; Ruhai Zou; Yunzhu Dai; Wenwu Liu; Chuan Peng; Yun Zheng; HuiFang Li; Yunfei Yuan; Binkui Li; Jiliang Qiu; Yuanping Zhang
- Source
- International Journal of Hyperthermia, Vol 38, Iss 1, Pp 372-381 (2021)
- Subject
- long-term outcome
Cancer Research
medicine.medical_specialty
Physiology
Colorectal cancer
medicine.medical_treatment
intraoperative ultrasound
030218 nuclear medicine & medical imaging
Intraoperative ultrasound
03 medical and health sciences
0302 clinical medicine
Physiology (medical)
Medical technology
medicine
Hepatectomy
Humans
In patient
R855-855.5
Microwaves
Ultrasonography, Interventional
Retrospective Studies
business.industry
Liver Neoplasms
Microwave ablation
medicine.disease
ultrasound guided ablation
Treatment Outcome
colorectal liver metastases
030220 oncology & carcinogenesis
open microwave ablation
Radiology
Neoplasm Recurrence, Local
Colorectal Neoplasms
business
- Language
- ISSN
- 1464-5157
0265-6736
Objective To compare the long-term outcome of combining hepatectomy with intraoperative ultrasound (IOUS)-guided open microwave ablation (MWA) versus hepatectomy alone in patients with colorectal cancer liver metastases (CRLM). Method A retrospective analysis of patients with CRLM who underwent hepatectomy alone (HT group; 380 patients) or hepatectomy combined with IOUS-guided open MWA (HT + MWA group; 57 patients) from April 2002 to September 2018 was conducted at our center. A propensity score-matched (PSM) analysis was used to reduce data bias between the two groups. Results The overall survival (OS) and disease-free survival (DFS) were not significantly different between the two groups after matching. Although intrahepatic recurrence was more frequent in the HT + MWA group in both the whole and matched cohort, the two groups exhibited similar rates of extrahepatic recurrence as well as concomitant intra- and extrahepatic recurrence. A higher number of CRLM (>3), larger maximum-size and absence of response to induction chemotherapy were independent risk factors for OS. Conclusion The oncological outcomes of hepatectomy combined with intraoperative open ablation was not significantly different to hepatectomy alone and should be considered as a safe and fair option for patients with difficultly resectable CRLM.