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Journal of the Korean Society for Therapeutic Radiology 1990;8(1): 73-78. |
| Effect of Radiation Therapy on Atelectasis from Lung Cancer |
| Seong Eon Hong, Young Ki Hong |
| Department of Therapeutic Radiology, College of Medicine, Kyung Hee University, Seoul, Korea. |
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| ABSTRACT |
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From January 1981 to December 1989, total 42 patients with atelectasis from lung cancer were treated with radiation therapy at the Department of Therapeutic Radiology in Kyung Hee University Hospital. The reexpansion of atelectasis after radiotherapy of the lung was evaluated retrospectively, utilizing treatment records and follow-up chest radiographs. Of the patients with non-small cell carcinoma of the lung, the response rate was 62% (21/34).
Patient with small cell carcinoma showed a 75% (6/8) response rate. There appears to be some evidence of a relationship of total tumor dose versus response of atelectasis; radiation dose over 40 gy (1337 ret), had a favorable effect on the rate of response compared with that below 40 gy (1297 ret), 70% (21/30) and 50% (6/12), respectively (p<0.01). Total response rate (partial and complete responses) of all patients was 64% (27/42).
Franction size was not contributed to the difference of response rates between small fraction (180~200 cgy) and large fraction (300 cgy), 53% (14/22) and 65% (13/20), respectively. The results of this study suggest that radiation therapy has a definite positive role in management of atelectasis caused by lung cancer, especially in inoperable non-small cell carcinoma. |
| Key Words:
Radiation therapy, Lung cancer, Atelectasis |
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