Abstract
For the purpose of testing the possibility of its effecive use in the decerebration of intracranial tumors, the Japanese-made HS-15 2450MHz microwave operative intrument was first tried on egg white and rabbit brains. The data so obtained were successfully applied clinically to the decerebration of 34 cases of large-sized intracranial tumors with rich blood kinesis, of which 18 were cases of meningiomas, 11 were cases of gliomas, 3 were cases of intracranial metastatic tumors. one was a case of angioreticuloma of cerebellum and one was a case of acoustic neurinoma. The tumors measured 6.1×5.0×3.8cm on the average and the amount of blood transfused averaged 650ml. All 34 patients were cured and discharged. Discussions were held as to the adjustment of power output and timing according to the size and location of the tumor, and the appropriate length of the microwave antenna.
The instrument has been found to possess a number of outstanding features: effective hemostesis, neat and tidy field of operation, simple handing and easy mastery; and when combined with the CUSA, the instrument considerably reduces the operative technique. The HS-15 2450 microwave operative instrument has been found to be a safe and reliably surgical tool.
