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  • Title: [Percutaneous microwave coagulation therapy for hepatocellular carcinoma].
    Author: Itamoto T, Asahara T, Kohashi T, Katayama S, Fukuda S, Nakatani T, Fukuda T, Yano M, Nakahara H, Okamoto Y, Katayama K, Dohi K.
    Journal: Gan To Kagaku Ryoho; 1999 Oct; 26(12):1841-4. PubMed ID: 10560408.
    Abstract:
    We performed percutaneous microwave coagulation therapy (PMCT) for 34 hepatocellular carcinoma (HCC) patients, including 18 primary and 16 recurrent HCC ones. Cumulative 1, 2-, 3- and 4-year survival rates of primary HCC patients were 94, 78, 78% and 62%, respectively, while those of recurrent HCC patients were 100, 79, 62% and 41%, respectively. There were no differences between groups. In both groups, local recurrence was found in about 50% of patients. The mean tumor size (diameter 2.6 +/- 0.6 cm) of patients with local recurrence was relatively larger than that (2.2 +/- 0.6 cm) of patients without local recurrence (p = 0.081). Seventeen of 27 patients with moderately or poorly differentiated HCC had local recurrence, while none of patients with well-differentiated HCC did (p = 0.005). Subsequently, local control failure led some patients to have progressive diseases such as multiple intrahepatic metastasis, tumor thrombi in the portal vein, and distant metastasis. From these findings, PMCT should be performed only for well-differentiated HCC less than 2 cm in diameter. If the patients with moderately or poorly differentiated HCC larger than 2 cm in diameter cannot tolerate hepatic resection because of their poor hepatic functional reserve, PMCT should be performed in combination with other non-surgical treatment modalities.
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