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±¹¼Ò ÁøÇàµÈ Á÷Àå¾Ï¿¡¼­ ¼ö¼ú ÈÄ È­Çйæ»ç¼±¿ä¹ý Postoperative Chemoradiotherapy in Locally Advanced Rectal Cancer

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ä±Ô¿µ/Gyu Young Chai °­±â¹®/ÃÖ»ó°æ/Ki Mun Kang/Sang Gyeong Choi

Abstract

¸ñÀû: ÈÄÇâÀû ºÐ¼®À» ÅëÇØ Á÷Àå¾Ï¿¡¼­ ¼ö¼ú ÈÄ È­Çйæ»ç¼±¿ä¹ýÀÇ Ä¡·á½ÇÆÐ ¾ç»ó ¹× »ýÁ¸À²À» È®ÀÎÇÏ°í, ±× °á°ú¸¦ ´Ù¸¥ ¿¬±¸µé°ú ºñ±³ ºÐ¼®ÇÏ¿© Á÷Àå¾Ï¿¡¼­ÀÇ ¼ö¼ú ÈÄ È­Çйæ»ç¼±¿ä¹ýÀÇ ¿ªÇÒÀ» ±Ô¸íÇÏ°íÀÚ º» ¿¬±¸¸¦ ½ÃÇàÇÏ¿´´Ù.

´ë»ó ¹× ¹æ¹ý: 1989³â 3¿ùºÎÅÍ 1998³â 12¿ù±îÁö °æ»ó´ëÇб³º´¿ø Ä¡·á¹æ»ç¼±°ú¿¡¼­ Á÷Àå¾ÏÀ¸·Î ¼ö¼ú ÈÄ È­Çйæ»ç¼±¿ä¹ýÀ» ¹ÞÀº 119¸íÀ» ´ë»óÀ¸·Î ÈÄÇâÀû ºÐ¼®À» ½ÃÇàÇÏ¿´´Ù. ¸ðµç ȯÀÚ´Â AJCCÀÇ TNM º´±â·Î ºÐ·ùÇÏ¿© ºÐ¼®ÇÏ¿´´Ù. ¿¬±¸ ´ë»óÀÇ ¿¬·É ºÐÆ÷´Â
32¼¼¿¡¼­
73¼¼±îÁö¿´À¸¸ç Áß¾Ó°ªÀº 56¼¼¿´´Ù. ¼ö¼úÀº Àüº¹ºÎ ÀýÁ¦¼úÀ» ½ÃÇà¹ÞÀº °æ¿ì°¡ 59¸í, º¹ºÎȸÀ½ ÀýÁ¦¼úÀ» ½ÃÇà¹ÞÀº °æ¿ì°¡ 60¸íÀ̾ú´Ù. T2 12¸í, T3 96¸í, T4 11¸íÀ̾ú°í, N0 43¸í, N1 53¸í, N2 23¸íÀ̾ú´Ù. ¹æ»ç¼±Ä¡·á´Â 6 §Æ ¼±Çü°¡¼Ó±â¸¦ ÀÌ¿ëÇÏ¿© ÇÏ·ç 1.8 §í¾¿
ÁÖ´ç 9
§í¸¦ Á¶»çÇÏ¿´´Ù. Àü °ñ¹Ý Á¶»ç·®Àº 40¡­50 §í¿´À¸¸ç, ÇÊ¿ä¿¡ µû¶ó 5¡­6 §í¸¦ ¼ÒÁ¶»ç¾ß·Î Ãß°¡ Á¶»çÇÏ¿´´Ù. 5-FU´Â ÁÖ»ç·Î Åõ¿©µÈ °æ¿ì°¡ 73¸í, °æ±¸·Î Åõ¿©µÈ °æ¿ì°¡ 46¸íÀ̾ú´Ù. ÃßÀû±â°£ÀÇ ±âÁØÀÏÀº ¼ö¼úÀ» ½ÃÇàÇÑ ³¯·Î ÇÏ¿© »ýÁ¸ÀÚÀÇ °æ¿ì ÃÖ¼Ò ÃßÀû±â°£À»
3³âÀ¸·Î
ÇÏ¿´´Ù. »ýÁ¸À² ºÐ¼®Àº Kaplan-Meier ¹ýÀ» »ç¿ëÇÏ¿´°í ´Üº¯·® ºÐ¼®Àº log rank test¸¦, ´Ùº¯·® ºÐ¼®Àº Cox regression hazard modelÀ» »ç¿ëÇÏ¿´´Ù.

°á°ú: Àüü ´ë»ó Áß 40¸íÀÌ Ä¡·á¿¡ ½ÇÆÐÇÏ¿© Ä¡·á ½ÇÆÐÀ²Àº 33.7%¿´´Ù. ±¹¼Ò ´Üµ¶ ½ÇÆа¡ 9¸í(7.6%), ¿ø°Ý ´Üµ¶ ½ÇÆа¡ 24¸í(20.2%), ±¹¼Ò ¹× ¿ø°Ý ½ÇÆа¡ 7¸í(5.9%)À¸·Î¼­, ±¹¼Ò ½ÇÆÐÀ²Àº 13.5%, ¿ø°Ý ½ÇÆÐÀ²Àº 26.1%¿´´Ù. ±¹¼Ò ½ÇÆÐ ºÎÀ§´Â °ñ¹Ý³» Àå±â°¡
°¡Àå
¸¹¾Ò°í, ¿¬°áºÎÀ§, °ñ¹Ý ¸²ÇÁÀý ¼øÀ̾ú´Ù. ȸÀ½ºÎ¿¡¼­ ½ÇÆÐµÈ °æ¿ì´Â ¾ø¾ú´Ù. ¿ø°ÝÀüÀÌ ºÎÀ§´Â °£°ú Æó°¡ °¡Àå ¸¹¾Ò´Ù. Àüü 5³â »ýÁ¸À² ¹× ¹«º´»ýÁ¸À²Àº °¢°¢ 56.2%, 53.3%¿´°í, »ýÁ¸±â°£ÀÇ Æò±Õ°ªÀº 64.8°³¿ù, Áß¾Ó°ªÀº 74°³¿ùÀ̾ú´Ù. T3, T4¿¡¼­ 5³â »ýÁ¸À²Àº
59.9%,
16.8% (p=0.002), ¹«º´ »ýÁ¸À²Àº 57.2%, 25.6% ¿´´Ù. N0, N1, N2¿¡¼­ 5³â »ýÁ¸À²Àº 71.1%, 56.7%, 31.9% (p=0.0008), ¹«º´»ýÁ¸À²Àº 68.2%, 52.6%, 30.1% (p=0.0006) ¿´´Ù. º´±â ¥±,¥²¿¡¼­ÀÇ 5³â »ýÁ¸À²Àº 71.1%, 49.1% (p=0.02), ¹«º´ »ýÁ¸À²Àº 68.1%, 45.8%
(p=0.01)¿´´Ù.
´Ùº¯·® ºÐ¼®¿¡¼­ 5³â »ýÁ¸À²¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â À¯ÀÇÇÑ ÀÎÀÚ´Â T, N º´±â¿´°í, 5³â ¹«º´»ýÁ¸À²¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â À¯ÀÇÇÑ ÀÎÀÚ´Â T, N º´±â ¹× ¼ö¼ú Àü CEA °ªÀ̾ú´Ù. 15¸í(12.6%)¿¡¼­ ¼ö¼úÀÌ ¿ä±¸µÇ´Â ÀåÇÕº´ÁõÀÌ ¹ß»ýÇÏ¿´´Ù.

°á·Ð: ¼ö¼ú ÈÄ È­Çйæ»ç¼±¿ä¹ýÀº ±¹¼Ò ÁøÇàµÈ Á÷Àå¾Ï¿¡¼­ ±¹¼ÒÁ¦¾î¸¦ À§ÇÑ È¿°úÀûÀÎ ¹æ¹ýÀÓÀÌ È®ÀεǾúÀ¸³ª ¿ø°Ý ½ÇÆп¡ ´ëÇÑ È¿°ú´Â ¹Ì¾àÇÏ¿´´Ù. ÇâÈÄ ±¹¼Ò ÁøÇàµÈ Á÷Àå¾ÏÀÇ »ýÁ¸À²À» Çâ»ó½ÃÅ°±â À§Çؼ­´Â ¿ø°Ý½ÇÆи¦ ³·Ãß°í ¸²ÇÁÀý ÀüÀÌ°¡ ÀÖ´Â Á÷Àå¾ÏÀÇ
±¹¼ÒÁ¦¾îÀ²À» ³ôÀÏ ¼ö ÀÖ´Â Ä¡·á¹æ¹ýÀÌ °³¹ßµÇ¾î¾ß ÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù.

Purpose: To evaluate the role of postoperative chemoradiotherapy in locally advanced rectal cancer, we retrospectively analyzed the treatment results of patients treated by curative surgical resection and postoperative
chemoradiotherapy.

Materials and Methods: From April 1989 through December 1998, 119 patients were treated with curative surgery and postoperative chemoradiotherapy for rectal carcinoma in Gyeongsang National University Hospital. Patient age ranged from 32
to
73
years, with a median age of 56 years. Low anterior resection was performed in 59 patients, and abdominoperineal resection in 60. Forty-three patients were AJCC stage ¥± and 76 were stage ¥². Radiation was delivered with 6 §Æ X rays using either
AP-PA
two fields, AP-PA both lateral four fields, or PA both lateral three fields. Total radiation dose ranged from 40 §í to 56 §í. In 73 patients, bolus infusions of 5-FU (400 §·/§³) were given during the first and fourth weeks of radiotherapy. After
completion of radiotherapy, an additional four to six cycles of 5-FU were given. Oral 5-FU (Furtulone) was given for nine months in 46 patients.

Results: Forty (33.7%) of the 119 patients showed treatment failure. Local failure occurred in 16 (13.5%) patients, 1 (2.3%) of 43 stage ¥± patients and 15 (19.7%) of 76 stage ¥² patients. Distant failure occurred in 31 (26.1%) patients,
among
whom 5 (11.6%) were stage ¥± and 26 (34.2%) were stage ¥². Five-year actuarial survival was 56.2% overall, 71.1% in stage ¥± patients and 49.1% in stage ¥² patients (p=0.0008). Five-year disease free survival was 53.3% overall, 68.1% in stage ¥±
and
45.8% in stage ¥² (p=0.0006). Multivariate analysis showed that T stage and N stage were significant prognostic factors for five year survival, and that T stage, N stage, and preoperative CEA value were significant prognostic factors for five
year
disease free survival. Bowel complication occurred in 22 patients, and was treated surgically in 15 (12.6%), and conservatively in 7 (5.9%).

Conclusion: Postoperative chemoradiotherapy was confirmed to be an effective modality for local control of rectal cancer, but the distant failure rate remained high. More effective modalities should be investigated to lower the distant
failure
rate.

Å°¿öµå

Á÷Àå¾Ï; ¼ö¼ú; È­Çпä¹ý; ¹æ»ç¼±Ä¡·á; Rectal cancer; Surgery; Chemotherapy; Radiotherapy;

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