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Ãʱ⠺ñ¼Ò¼¼Æ÷Æó¾ÏÀÇ ¹æ»ç¼± ´Üµ¶Ä¡·á Radiation Therapy Alone for Early Stage Non-small Cell Carcinoma of the Lung

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Abstract

¸ñÀû: Ãʱ⠺ñ¼Ò¼¼Æ÷Æó¾Ï ȯÀÚ¿¡¼­ ¹æ»ç¼± ´Üµ¶Ä¡·áÀÇ °á°ú¸¦ ºÐ¼®ÇÏ°í ÃÖÀûÀÇ ¹æ»ç¼± ¿ä¹ýÀ» ¾Ë¾Æº¸°íÀÚ ÇÔÀÌ º» ¿¬±¸ÀÇ ¸ñÀûÀÌ´Ù.

Àç·á ¹× ¹æ¹ý: 1987³â 6¿ùºÎÅÍ 200³â 5¿ù±îÁö º»¿ø¿¡¼­ ¹æ»ç¼±Ä¡·á¸¦ ¹ÞÀº Á¦1 ¹× Á¦2º´±â ºñ¼Ò¼¼Æ÷Æó¾Ï ȯÀÚ¸¦ ÈÄÇâÀûÀ¸·Î ºÐ¼®ÇÏ¿´´Ù. ±ÙÄ¡Àû ¸ñÀûÀ¸·Î ¹æ»ç¼± ´Üµ¶¿ä¹ýÀ¸·Î Ä¡·á ¹ÞÀº 21¸íÀÇ È¯ÀÚ¸¦ ´ë»óÀ¸·Î ÇÏ¿´´Ù. ȯÀÚÀÇ ³ªÀÌ´Â 53¼¼ºÎÅÍ
81¼¼À̾úÀ¸¸ç
Áß¾Ó°ªÀº 66¼¼À̾ú´Ù. ¸ðµç ȯÀÚ´Â ³²¼ºÀ̾ú´Ù. ¼ö¼úÀÌ ºÒ°¡´ÉÇÏ¿´´ø ÀÌÀ¯´Â Æó±â´ÉÀÇ ¼Õ»ó, ½ÉÇ÷°ü°è Áúȯ, ¿­¾ÇÇÑ Àü½Å»óÅÂ, °í¿¬·É, ¼ö¼ú °ÅºÎ µîÀ̾ú´Ù. 16¸íÀº ÆíÆò»óÇǾÏ, 3¸íÀº ¼±¼¼Æ÷¾ÏÀ̾ú°í 2¸íÀº ºÒºÐ¸íÇÏ¿´´Ù. ÀüÅëÀû ¹æ¹ýÀ¸·Î ÇÏ·ç¿¡ Çѹø ÀÏÁÖÀÏ¿¡
5ȸ¾¿
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»ýÁ¸À²¿¡ ¿µÇâÀ» ¹ÌÄ¡Áö ¸øÇÏ¿´´Ù.

°á·Ð: ¼ö¼úÀÌ ºÒ°¡´ÉÇÑ Ãʱ⠺ñ¼Ò¼¼Æ÷Æó¾Ï ȯÀÚ¿¡¼­ ¹æ»ç¼± ´Üµ¶Ä¡·á´Â ¾ÈÀüÇÏ°í È¿°úÀûÀÎ Ä¡·á¹æ¹ýÀ̾úÀ¸¸ç º» ¿¬±¸ÀÇ °á°ú·Î ºñÃß¾î º¼ ¶§ ¿ø¹ßºÎÀ§ÀÇ ¹æ»ç¼± Á¶»ç·®À» ³ôÀÌ´Â °ÍÀÌ ±¹¼Ò°üÇØÀ²À» Áõ°¡½ÃÅ°°í ³ª¾Æ°¡ »ýÁ¸À²µµ Áõ°¡½ÃÅ°¸®¶ó »ç·áµÈ´Ù.

Purpose: To evaluate the outcome of early stage non-small cell lung cancer patients who were treated with radiation therapy alone and define the optimal radiotherapeutic regimen for these patients.

Materials and Methods: A retrospective review was performed on patients with sage ¥° or ¥± non-small cell carcinoma of the lung that were treated at our institution between June, 1987 and May, 2000. A total of 21 patients treated
definitively
with radiation therapy alone were included in this study. The age of the patients ranged from 53 to 81 years with a median of 66 years. All the patients were male. The medical reasons for inoperability were lack of pulmonary reserve,
cardiovascular
disease, poor performance status, old age, and patient refusal in the decreasing order. Pathological evidence was not adequate to characterize the non-small cell subtype in two patients. Of the remaining 19 patients, 16 had squamous cell carcinoma
and 3
had adenocarcinoma. Treatment was given with conventional fractionation, once a day, five times a week. The doses to the primary site ranged from 56 §í to 69 §í. No patients were lost to follow-up.

Results: The overall survival rates for the entire group at 2, 3 and 5 years were 41, 30 and 21%, respectively. The cause specific survivals at 2, 3 and 5 years were 55, 36 and 25%, respectively. An intercurrent disease was the cause of
death in
two patients. The cumulative local failure rate at 5 years was 43%. Nine of the 21 patients had treatment failures after the curative radiotherapy was attempted. Local recurrences as the first site of failure were documented in 7 patients.
Therefore,
local failure alone represented 78% of the total failures. Those patients whose tumor sizes were less than 4 §¯ had a significantly better 5 year disease free survival than those with tumors greater than 4 §¯ (0% vs 36%). Those patients with a
Karnofsky
performance status less than 70 did not differ significantly with respect to actuarial survival when compared to those with a status greater than 70 (25% vs 26%, p>0.05).

Conclusion: Radiation therapy alone is an effective and safe treatment for early stage non-small cell lung cancer patients who are medically inoperable or refuse surgery. Also we believe that a higher radiation dose to the primary site
could
improve the local control rate, and ultimately the overall survival rate.

Å°¿öµå

ºñ¼Ò¼¼Æ÷Æó¾Ï; Ãʱ⠺´º¯; ¹æ»ç¼± Ä¡·á; Non-small cell lung cancer; Early stage; Radiation therapy;

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