J.Jpn. Surg. Soc.. 88(12): 1731-1736, 1987

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Original article

POSTOPERATIVE LOCAL THERMO-CHEMOTHERAPY FOR CONTROL OF RESIDUAL PLEURAL DISEASES AFTER RESECTION OF PRIMARY LUNG CARCINOMA
―REGULATION OF DISSEMINATION―

Pleural dissemination was proved by intraoperative histodiagnosis in 11 of 121 patients who underwent pulmonary resection for non-small cell carcinoma of the lung between April, 1985 and December, 1986. To control such intrathoracic residual diseases, we devised a means of local thermo-chemotherapy. Ten of 11 patients were treated with intrapleurally administrated cisplatin (50-100mg, bolus) combined with simultaneous radiofrequency hyperthermia (13.56 MHz) for 2 to 3 weeks after surgery. Courses were repeated at 5-to 7-day intervals. Eight patients had N2-disease, one N1 and the other NX. Eight were adenocarcinomas. Thermal burn of the chest wall with hyperkalemia was observed in only one patient who received thermotherapy at the over a magnetrode power of 450 watts for 50 minutes. In the other 9, side effects were minimal under the thermotherapy to obtain a peripleural temperature beyond 42℃ . Of the 10 patients, three lived more than 12 months after treatment. Although distant metastases were recognized in 6 cases, none had local recurrence for the median follow-up period of 6 months. One patient had metastasis to the contralateral supraclavicular lymph nodes. Because there was no evidence of intrathoracic recurrences in this patient, radical neck dissection were performed 15 months after the initial operation. This experience warrants further investigation of thermo-chemotherapy as a treatment for controlling pleural dissemination after resection of primary tumor.

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