During the past ten years 285 cases of head and neck cancers were treated at Wakayama Medical College Hospital. For the treatments the following new methods were deviced and applied. 1) In maxillary cancer the simultanous combined use of instillation of Phytohemaggultinin solution into the sinus with Co
60 irradiation and intraarterial infusion with 5 Fu induced histological disappearance of tumor cells in 61.1% of the cases. 2) New reconstructive techniques were successfully applied to operations for cancer of the oral cavity, hypopharynx and thyroid. The mouth floors were reconstructed by a pedicle flap of the epithelial layer of the tongue, and hypopharynx walls were done by a cervical skin flap under a special skin incision, and cervical tracheas by a free composite graft of nasal septum. 3) Cryosurgery was employed for cancer of the maxillary sinus and oral cavity. 4) Flexible bonchofiberscope was used to examine the extent of development in laryngeal and large cervical esophageal cancer.
As the end result of treatment three years crude survival rate of cancers of the maxillary sinus, larynx, oral cavity, epipharynx, mesopharynx, hypopharynx, cervical esophagus, thyroid and salivary gland were 53.1%, 75.0%, 36.4%, 0%, 42.8%, 66.6%, 30.0% 64.0%, 70.0% respectively.
The causes of death were characteristic according to the site of cancer. Death due to local recurrence was frequently seen in cancer of the oral cavity, maxillary sinus, pharynx and esophagus which, if invaded deeply into the surrounding structue of muscles, resisted to irradiation or escaped from complete excision. Death due to local metastases was frequently seen in cancer of the oral cavity, supraglottis of larynx, hypopharynx and cervical esophagus, of which metastatic foci involved the wall of carotid artery. Death due to distant metastases was frequently seen in cancer of the epipharynx of which histological type was undifferentiate. Death due to causes other than recurrence of the cancer was frequently seen in cancer of the maxillary sinus, larynx, hypopharynx and cervical esophagus of which patients were already in general condition of high risk before treatment or had disturbance in feeding or secondary immunodeficiency during the treatment.
抄録全体を表示