[Direct current therapy (DCT) for malignant tumors].

The results of 216 malignant tumor patients treated by DCT are presented. Cancer patients unsuitable for surgery, radiotherapy or chemotherapy are indicated for DCT, especially those with superficially located tumors, eg. melanoma, cancer of the skin, thyroid, breast and mouth. The deep seated cancers, eg. cancer of the liver, adrenal gland, lung and uterine cervix can also be treated by DCT. However, very advanced lesions and patients with generalized metastases respond poorly to DCT. The over-all response rate of DCT was 77.7%.