Indications for percutaneous microwave coagulation therapy of hepatic tumor as identified by assessing the tumor persistence and local recurrence

Abstract

In 177 patients with hepatic tumor (245 nodules) undergoing percutaneous microwave coagulation therapy (PMCT), tumor persistence and local recurrence were compared with regard to tumor size and the method of treatment in order to identify suitable candidates for PMCT. Tumors measuring less than 20 mm in diameter showed a good response to PMCT. And the therapy was more effective under general anesthesia than under local anesthesia. PMCT is best indicated for tumors less than 20 mm in diameter. And under general anesthesia, effective local treatment are possible. Therefore, it seems important to achieve reliable and complete coagulation at the initial treatment session.