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±¹¼ÒÁøÇ༺ Á÷Àå¾ÏÀÇ ¼ö¼ú Àü µ¿½ÃÈ­Çйæ»ç¼±¿ä¹ýÀÇ °á°ú Results of Preoperative Concurrent Chemoradiotherapy for Locally Advanced Rectal Cancer

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ÃÖ»ó±Ô ( Choi Sang-Gu ) 
ÇѸ²´ëÇб³ ÀÇ°ú´ëÇÐ ¹æ»ç¼±Á¾¾çÇб³½Ç

±è¼ö»ê ( Kim Su-San ) 
ÇѸ²´ëÇб³ ÀÇ°ú´ëÇÐ ¹æ»ç¼±Á¾¾çÇб³½Ç
¹èÈƽĠ( Bae Hoon-Sik ) 
ÇѸ²´ëÇб³ ÀÇ°ú´ëÇÐ ¹æ»ç¼±Á¾¾çÇб³½Ç

Abstract

¸ñ Àû: ±¹¼ÒÀûÀ¸·Î ÁøÇàµÈ Á÷Àå¾ÏȯÀÚ¿¡¼­ ¼ö¼ú Àü µ¿½ÃÈ­Çйæ»ç¼±¿ä¹ýÀ» ½ÃÇàÇÑ È¯ÀÚµéÀÇ Ç×¹® °ý¾à±Ù º¸Á¸À²°ú º´±â °­ÇÏÀ² µîÀ» ºÐ¼®ÇÏ°íÀÚ ÈÄÇâÀû ÀÓ»ó ¿¬±¸¸¦ ½ÃÇàÇÏ¿´´Ù.

´ë»ó ¹× ¹æ¹ý: 2002³â 1¿ùºÎÅÍ 2005³â 12¿ù±îÁö Á¶Á÷ÇÐÀûÀ¸·Î È®ÁøµÈ Á÷Àå¾Ï ȯÀÚ Áß, º´±â°¡ T2 ÀÌ»óÀ̰ųª ¸²ÇÁÀý ÀüÀÌ°¡ Àִ ȯÀÚ¸¦ ´ë»óÀ¸·Î ÇÏ¿´´Ù. ÇѸ²´ëÇб³ ¼º½Éº´¿ø ¹æ»ç¼±Á¾¾çÇаú¿¡¼­ ¼ö¼ú Àü µ¿½ÃÈ­Çйæ»ç¼±¿ä¹ýÀ» ½ÃÇà ¹ÞÀº 36¸í Áß, º»¿ø¿¡¼­ ¼ö¼úÀ» ½ÃÇàÇÑ 26¸íÀ» ´ë»óÀ¸·Î ¿¬±¸¸¦ ½ÃÇàÇÏ¿´´Ù. ȯÀÚµéÀº ¼ö¼ú Àü º´±â°áÁ¤À» À§ÇÑ °Ë»ç¸¦ ½ÃÇàÇÏ¿´°í ¹æ»ç¼±Ä¡·á´Â CT¸¦ ÃÔ¿µÇÏ¿© Ä¡·á°èȹÀ» ¼¼¿üÀ¸¸ç ¸ÅÀÏ 1.8 Gy·Î ÁÖ 5ȸ, ÃÑ ¹æ»ç¼± Á¶»ç·® 45.0¢¦52.2 Gy±îÁö 3Â÷¿ø ¹æ»ç¼±Ä¡·á ¹æ¹ýÀ¸·Î ½ÃÇàÇÏ¿´À¸¸ç, ¹æ»ç¼±Ä¡·á ù° ÁÖ¿Í ´Ù¼¸Â° ÁÖ¿¡ 5-FU¿Í leucovorineÀ» µ¿½Ã Åõ¿©ÇÏ¿´´Ù. ¼ö¼úÀº µ¿½ÃÈ­Çйæ»ç¼±¿ä¹ý Á¾·á ÈÄ ¾à 2¢¦4ÁÖ°æ¿¡ ½ÃÇàÇÏ¿´´Ù.

°á °ú: ´ë»ó ȯÀÚÀÇ ¿¬·É Áß¾Ó°ªÀº 61.9¼¼(34¢¦78)¿´À¸¸ç, ³²ÀÚ°¡ 21¸í, ¿©ÀÚ°¡ 5¸íÀ̾ú°í ÃßÀû °üÂû ±â°£ÀÇ Áß¾Ó°ªÀº 28°³¿ù(11¢¦44)À̾ú´Ù. ¸ðµç ȯÀÚ¿¡¼­ ÀýÁ¦¿¬ À½¼ºÀÎ ±ÙÄ¡ÀýÁ¦°¡ °¡´ÉÇÏ¿´À¸³ª º´¸®ÀûÀ¸·Î ¿ÏÀü ¹ÝÀÀÀ» º¸ÀÎ °æ¿ì´Â ¾ø¾ú´Ù. ¼ö¼úÀº 3¿¹¿¡¼­ º¹È¸À½ºÎ ÀýÁ¦¼úÀ», ³ª¸ÓÁö 23¿¹¿¡¼­ ÇÏÀü¹æÀýÁ¦¼úÀÌ ½ÃÇàµÇ¾î °ý¾à±Ù º¸Á¸À²Àº 88.5% (23/26)¿´´Ù. ¼ö¼ú ÈÄ º´±â °­ÇÏ´Â 12¿¹·Î º´±â °­ÇÏÀ²Àº 46.2%¿´À¸¸ç 19¿¹¿¡¼­ Á¾¾ç Å©±â°¡ °¨¼ÒµÇ¾î Á¾¾ç Å©±â °¨¼ÒÀ²Àº 73%¿´´Ù. ±¹¼Ò Àç¹ßÀÌ 1¸í, ¿ø°Ý ÀüÀÌ°¡ 3¸í¿¡¼­ °üÂûµÇ¾úÀ¸¸ç 3³â ¹«Àç¹ß »ýÁ¸À²Àº 96.7%, 3³â ¹«ÀüÀÌ »ýÁ¸À²Àº 87%, ±×¸®°í 3³â ¹«ÁøÇà »ýÁ¸À²Àº 83.1%¿´´Ù. Ä¡·á¿Í °ü·ÃµÈ ±Þ¼º µ¶¼ºÀ¸·Î´Â Grade 3 & 4 ºóÇ÷ °¢°¢ 1¿¹, Grade 3 ¹éÇ÷±¸ °¨¼ÒÁõ 1¿¹, Grade 3 ÀåÆó»ö 1¿¹°¡ °üÂûµÇ¾ú´Ù.

°á ·Ð: Á÷Àå¾Ï ȯÀڵ鿡¼­ ¼ö¼ú Àü µ¿½ÃÈ­Çйæ»ç¼±¿ä¹ýÀº ±ÙÄ¡Àû ¼ö¼úÀ» ½ÃÇàÇÑ °æ¿ì ³ôÀº °ý¾à±Ùº¸Á¸À²°ú ¼ö¼ú ÈÄ º´±â°¨¼ÒÀ²À» º¸¿´À¸¸ç Ä¡·á¿¡ µû¸¥ µ¶¼ºµµ ´ëºÎºÐ °æ¹ÌÇÏ°í ³ôÀº ¼øÀÀµµ¸¦ º¸¿© È¿°úÀûÀÎ ¹æ¹ýÀ¸·Î ÆÇ´ÜµÇ¸ç ¾ÕÀ¸·Î ¸¹Àº ȯÀÚµéÀ» ´ë»óÀ¸·Î Àå±â°£¿¡ °ÉÄ£ ÃßÀû °üÂûÀ» ¿äÇÑ´Ù.

Purpose: We performed a retrospective non-randomized clinical study of locally advanced rectal cancer, to evaluate the anal sphincter preservation rates, down staging rates and survival rates of preoperative chemoradiotherapy.

Materials and Methods: From January 2002 to December 2005, patients with pathologically confirmed rectal cancer with clinical stage T2 or higher, or patients with lymph node metastasis were enrolled in this study. A preoperative staging work-up was conducted in 36 patients. All patients were treated with preoperative chemoradiotherapy, and curative resection was performed for 26 patients at Hallym University Sacred Heart Hospital. Radiotherapy treatment planning was conducted with the use of planning CT for all patients. A total dose of 45.0¢¦52.2 Gy conventionally fractionated three-dimensional radiotherapy was delivered to the whole pelvis. Chemotherapy was given at the first and fifth week of radiation therapy with continuous infusion i.v. 5-FU (Fluorouracil) and LV (Leucovorine). Surgical resection was performed 2 to 4 weeks after the completion of the chemoradiotherapy regimen.

Results: The complete resection rate with negative resection margin was 100% (26/26). However, a pathologically complete response was not seen after curative resection. Surgery was done by LAR (low anterior resection) in 23 patients and APR (abdomino-perineal resection) in 3 patients. The sphincter preservation rate was 88.5% (23/26), down staging of the tumor occurred in 12 patients (46.2%) and down-sizing of the tumor occurred in 19 patients (73%). Local recurrence after surgical resection developed in 1 patient, and distant metastasis developed in 3 patients. The local recurrence free survival rate, distant metastasis free survival rate, and progression free survival rate were 96.7%, 87% and 83.1%, respectively. Treatment related toxicity was minimal except for one grade 3, one grade 4 anemia, one grade 3 leukopenia, and one grade 3 ileus.

Conclusion: Preoperative concurrent chmoradiotherapy for locally advanced rectal cancer seems to have some potential benefits: high sphincter preservation and down staging. Treatment related toxicity was minimal and a high compliance with treatment was seen in this study. Further long-term follow-up with a larger group of patients is required.

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Preoperative chemoradiotherapy;Rectal cancer;Sphincter preservation

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