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½Äµµ¾Ï¿¡¼­ ±ÙÄ¡Àû ÀýÁ¦¼ú ÈÄ ¹æ»ç¼±Ä¡·áÀÇ ¿ªÇÒ The Role of Postoperative Adjuvant Radiotherapy in Resected Esophageal Cancer

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ÀÌâ°É/Chang Geol Lee ±èÃæ¹è/Á¤°æ¿µ/À̵ο¬/¼ºÁø½Ç/±è±Í¾ð/¼­Ã¢¿Á/Choong Bae Kim/Kyung Young Chung/Doo Yun Lee/Jin Sil Seong/Gwi Eon Kim/Chang Ok Suh

Abstract

¸ñÀû: ½Äµµ¾ÏÀÇ ±ÙÄ¡Àû ÀýÁ¦¼ú ÈÄ º¸Á¶Àû ¿ä¹ýÀ¸·Î ¹æ»ç¼±Ä¡·áÀÇ ¿ªÇÒÀº ¾ÆÁ÷ Á¤¸³µÇ¾î ÀÖÁö ¾ÊÀº »óÅÂÀÌ´Ù. ÀúÀÚµéÀº ÈÄÇâÀû ºÐ¼®À» ÅëÇÏ¿© ½Äµµ¾Ï ȯÀÚ¿¡¼­ ±ÙÄ¡Àû ÀýÁ¦¼ú ÈÄ ¼ö¼ú´Üµ¶±º°ú ¼ö¼ú ÈÄ ¹æ»ç¼±Ä¡·á±º °£ÀÇ »ýÁ¸·ü, Àç¹ß¾ç»óÀ» ºñ±³ÇÏ¿©
¹æ»ç¼±Ä¡·áÀÇ
¿ªÇÒÀ» ¾Ë¾Æ º¸°íÀÚ ÇÏ¿´´Ù.

´ë»ó ¹× ¹æ¹ý: 1985³â 1¿ù¿¡¼­ 1993³â 12¿ù±îÁö ½Äµµ¾ÏÀ¸·Î Áø´Ü¹Þ°í ±ÙÄ¡Àû ÀýÁ¦¼úÀ» ½ÃÇà¹ÞÀº ȯÀÚ 51¸íÀ» ´ë»óÀ¸·Î ÈÄÇâÀû ºÐ¼®À» ½ÃÇàÇÏ¿´´Ù. º´±âº°·Î ¥°±â 13¿¹, ¥±A±â 12¿¹, ¥±B±â 4¿¹, ±×¸®°í ¥²±â°¡ 22¿¹¿´´Ù. ÀÌ Áß º´±â ¥°Àº Àü ¿¹¿¡¼­ ¼ö¼ú¸¸À»
½ÃÇà¹Þ¾Ò°í, º´±â ¥±¿Í ¥²ÀÇ 38¿¹ Áß 12¿¹´Â ¼ö¼ú´Üµ¶ ±×¸®°í 26¿¹´Â ¼ö¼ú ÈÄ ¹æ»ç¼±Ä¡·á¸¦ ½ÃÇà¹Þ¾Ò´Ù. ¼ö¼úÀº 35¿¹¿¡¼­ °æÈäÀû ½ÄµµÀýÁ¦¼ú(transthoracic esophagectomy)À» ±×¸®°í 16¿¹¿¡¼­ °æ½Äµµ°ø À§ÀåÀýÁ¦¼ú(transhiatal esophagectomy)À» ½ÃÇà¹Þ¾Ò´Ù.
¹æ»ç¼±Ä¡·á´Â
¿ø¹ßº´¼Ò¸¦ ±âÁØÀ¸·Î Á¾°Ýµ¿, ¼â°ñ»óºÎ¸²ÇÁÀý ±×¸®°í º¹°­¸²ÇÁÀýÀ» Æ÷ÇÔÇÏ¿© 3,000~6000 c§í/5~6ÁÖ(Áß¾Ó°ª 5400 c§í)Á¶»çÇÏ¿´´Ù. ÃßÀû±â°£Àº 18°³¿ù¿¡¼­ 107°³¿ù Áß¾ÓÄ¡ 38°³¿ùÀ̾ú´Ù.

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Ä¡·á¿¡ µû¸¥ ºÎÀÛ¿ëÀº ¾ç ±º °£¿¡ Â÷ÀÌ°¡ ¾ø¾ú´Ù.

°á·Ð: ±ÙÄ¡Àû ÀýÁ¦¼ú ÈÄ º´±â ¥±, ¥² ½Äµµ¾ÏȯÀÚ¿¡¼­ ¼ö¼ú ÈÄ º¸Á¶¿ä¹ýÀ¸·Î ¹æ»ç¼±Ä¡·á´Â ¼ö¼ú´Üµ¶±º°ú ºñ±³ÇÏ¿© »ýÁ¸À², Àç¹ß·ü¿¡ Â÷ÀÌ°¡ ¾ø¾ú´Ù. ±×·¯³ª º´±â ¥² ȤÀº N1ÀÇ °æ¿ì´Â ±¹¼ÒÀç¹ßÀ» ³·Ãß°í »ýÁ¸À²Çâ»óÀÇ °æÇâÀ» º¸¿© ÇâÈÄ Á» ´õ ¸¹Àº ¼öÀÇ
ȯÀÚ¸¦
´ë»óÀ¸·Î ÀüÇâÀûÀÎ ¿¬±¸°¡ ÇÊ¿äÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù. ¶ÇÇÑ ¹æ»ç¼±Ä¡·á½Ã ±¹¼ÒÀç¹ß·üÀ» ³·Ãß±â À§ÇØ ¹æ»ç¼±Ä¡·áÀÇ ¹üÀ§¸¦ Á¾°Ýµ¿, ¼â°ñ»óºÎ¸²ÇÁÀý, º¹°­ ¸²ÇÁÀý ±×¸®°í ¹®ÇÕºÎÀ§ µîÀ» ¸ðµÎ Æ÷ÇÔÇÏ´Â Á»´õ ³ÐÀº Á¶»ç¸éÀÇ Ä¡·á°¡ ÇÊ¿äÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù.

Objective: A retrospective study was performed to evaluate whether postoperative adjuvant radiotherapy can improve survival and decrease recurrence as compared with surgery alone in resected esophageal cancer.

Materials and Methods: From Jan. 1985 to Dec. 1993, among 94 esophageal cancer patients treated with surgery, fifty-one patients were included in this study. Transthoracic esophagectomy was performed in 35 patients and transhiatal
esophagectomy
in 16. Postoperative adjuvant radiotherapy was performed 4 weeks after surgery in 26 among 38 patients in stage ¥± and ¥². A total dose of 30~60 §í in 1.8 §í daily fraction, median 54 §í over 6 weeks, was delivered in the mediastinum£«both
supraclavicular lymph nodes or celiac lymph nodes according to the tumor location. Forty-seven patients(92%) had squamous histology. The median follow-up period was 38 months.

Results: The overall 2-year and 5-year survival and median survival were 56.4%, 36.8% and 45 months. Two-year and 5-year survival and median survival by stage were 92%, 60.3% for stage ¥°, 63%, 42% and 51 months for stage ¥± and 34%, 23% and
19
months for stage ¥² (p=0.04). For stage ¥± and ¥² patients, 5-year survival and median survival were 22.8%, 45 months for the surgery alone group and 37.8%, 22 months for the postoperative RT group (p=0.89). For stage ¥² patients, 2-year survival
and
median survival were 0%, 11 months for the surgery alone group and 36.5%, 20 months for the postoperative RT group (p=0.14). Local and distant failure rates for stage ¥± and ¥² were 50%, 16% for the surgery alone and 39%, 31% for the postoperative
RT
group. For N1 patients, local failure rate was 71% for the surgery alone group and 37% for the postoperative RT group (p=0.19). Among 10 local failures in the postoperative RT group, in-field failures were 2, marginal failures 1, out-field 5 and
anastomotic site failures 2.

Conclusion: There were no statistically significant differences in either the overall survival or the patterns of failure between the surgery alone group and the postoperative RT group for resected stage ¥± and ¥² esophageal cancer. But
this
study showed a tendency of survival improvement and decrease in local failure when postoperative RT was performed for stage ¥² or N1 though statistically not significant. To decrease local failure, a more generous radiation field encompassing the
supraclavicular, mediastinal, and celiac lymph nodes and anastomotic site in postoperative adjuvant treatment should be considered.

Å°¿öµå

½Äµµ¾Ï; ¼ö¼ú ÈÄ ¹æ»ç¼±Ä¡·á; Esophageal cancer; Surgery; Radiotherapy;

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