[Microwave ablation for multiple bilobar liver tumors from colorectal cancer].
OBJECTIVE
The aim of study was to evaluate the effectiveness of microwave ablation for multiple bilobar liver tumors from colorectal cancer.


METHODS
Data from the patients undergoing a hepatic resection with or without microwave ablation at our department were analyzed retrospectively. Survival was estimated using the Kaplan-Meier method and compared using the logrank test.


RESULTS
Seventeen percent of patients with combined resection/ablation at sites of initial recurrence at the liver and an extra hepatic metastasis in 11%. The difference between patients with combined resection/ablation and with resection was not significant (p = 0.84). Recurrence occurred near the resection or ablation line in 12.5% within combined resection/ablation. No significant differences were found for overall survivals: disease-free survival between resection/ablation group and with resection alone.


CONCLUSIONS
Microwave ablation plus hepatic resection is suggested to be equally effective as hepatic resection, and it expanded indications for surgery to treat multiple bilobar liver tumors from colorectal cancer.
Shimizu
Tetsuya
T
Gastroenterological Surgery, Yokohama City University Graduate School of Medicine.
Tanaka
Kuniya
K
Makino
Hirochika
H
Matsuo
Kenichi
K
Ueda
Michio
M
Nagano
Yasuhiko
Y
Togo
Shinji
S
Shimada
Hiroshi
H
D017115:Catheter Ablation; D015179:Colorectal Neoplasms / Q000473:pathology*; D003131:Combined Modality Therapy; D018572:Disease-Free Survival; D006498:Hepatectomy; D006801:Humans; D008113:Liver Neoplasms / Q000401:mortality / Q000556:secondary* / Q000601:surgery*; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D015996:Survival Rate