Effectiveness of HPD and Radiation Therapy in Lung Cancer

The diagnostic rate of lung cancer has been improved by the development of the fiberoptic bronchoscope and this instrument has particularly promoted the detection of early stage of central type lung cancer. But therapeutic results have been unsatisfactory, partly because of difficulties in resecting cases with poor pulmonary function. On the other hand, chemotherapy and radiation therapy can have serious side effects. New therapeutic modalities are therefore required for treatment of early stage inoperable lung cancer cases.