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Abstract

¸ñ Àû : ¹æ»ç¼± ´Üµ¶ Ä¡·á¸¦ ¹ÞÀº Á¶±â¼º¹®¾Ï ȯÀÚ¿¡¼­ ±¹¼ÒÁ¾¾çÁ¦¾îÀ²¿¡ ¿µÇâÀ» ÁÖ´Â ¿¹ÈÄ ÀÎÀÚ¸¦ ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.
´ë»ó ¹× ¹æ¹ý : 1986³â 7¿ùºÎÅÍ 1995³â 12¿ù ±îÁö Àü³²´ëÇб³º´¿ø¿¡¼­ Á¶±â¼º¹®¾ÏÀ¸·Î È®ÁøµÇ¾î ±ÙÄ¡Àû ¸ñÀûÀÇ ¹æ»ç¼±Ä¡·á¸¦ ¹ÞÀº 37¸íÀÇ È¯ÀÚ¸¦ ´ë»óÀ¸·Î ÈÄÇâÀû ºÐ¼®À» ½ÃÇàÇÏ¿´´Ù. ´ë»ó ȯÀÚÀÇ ¿¬·É ¹üÀ§´Â 30¼¼¿¡¼­ 73¼¼¿´À¸¸ç Áß¾Ó°ªÀº 59¼¼¿´´Ù. ¼ºº° ºÐÆ÷´Â
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35¸í(95%), ¿©ÀÚ°¡ 2¸í(5%)À̾ú´Ù. Á¶Á÷ÇÐÀû À¯ÇüÀº ¸ðµÎ ÆíÆò¼¼Æ÷¾ÏÀ̾ú´Ù. ¹Ì±¹ ¾ÏÇÕµ¿À§¿øȸÀÇ º´±âºÐ·ù¹ý(1997)¿¡ µû¶ó ´Ù½Ã ºÐ·ùÇÑ º´±â´Â T1a, T1b, T2°¡ °¢°¢ 27¸í(73%), 3¸í(8%), 7¸í(19%)À̾ú´Ù. ¹æ»ç¼±Ä¡·á´Â ¼±Çü°¡¼Ó±âÀÇ 6 MV X-ray¸¦ ÀÌ¿ëÇÏ¿´´Ù.
Èĵο¡
Á¶»çµÈ Ãѹæ»ç¼±·®Àº 5,040 cGy¿¡¼­ 7,020 cGy ¹üÀ§¿´À¸¸ç Áß¾Ó°ªÀº 6,600 cGy¿´´Ù. ÃßÀû±â°£ÀÇ Áß¾Ó°ªÀº 80°³¿ùÀ̾ú°í »ýÁ¸À²°ú ±¹¼ÒÁ¾¾çÁ¦¾îÀ²À» Kaplan-Meier ¹ý¿¡ ÀÇÇÏ¿© »êÃâÇÏ¿´À¸¸ç µÎ±º°£ÀÇ ºñ±³´Â generalized Wilcoxon test¸¦ ÀÌ¿ëÇÏ¿© °ËÁõÇÏ¿´´Ù.
±¹¼ÒÁ¾¾çÁ¦¾îÀ²¿¡ ¿µÇâÀ» ÁÙ ¼ö ÀÖ´Â ÀÎÀÚµéÀÇ ´Ùº¯·®ºÐ¼®¿¡´Â Cox ¸ðµ¨À» ÀÌ¿ëÇÏ¿´´Ù.
°á °ú : Àüü ȯÀÚ 37¸íÀÇ 5³â »ýÁ¸À²Àº 89%¿´°í ±¹¼ÒÁ¾¾çÁ¦¾îÀ²Àº 74%¿´´Ù. ±¹¼ÒÁ¾¾çÁ¦¾îÀ²¿¡ ¿µÇâÀ» ÁÙ ¼ö ÀÖ´Â ÀÎÀÚµé·Î ¿¬·É, T-º´±â, Àü¿¬ÇÕħ¹ü, ÀÏȸÁ¶»ç·®, Ãѹæ»ç¼±·®, ¹æ»ç¼±Ä¡·á±â°£À» ºÐ¼®¿¡ Æ÷ÇÔ½ÃÄ×´Ù. ´Üº¯·®ºÐ¼®¿¡¼­ Ä¡·á±â°£ÀÌ 50ÀÏ ¹Ì¸¸ÀÎ °æ¿ì
5³â
±¹¼ÒÁ¾¾çÁ¦¾îÀ²ÀÌ 93%, 50ÀÏ ÀÌ»óÀÎ °æ¿ì 60%·Î¼­ Åë°èÇÐÀû ÀÇÀÇ°¡ ÀÖ¾ú´Ù( p= 0.026). ´Ùº¯·®ºÐ¼®¿¡¼­µµ Ä¡·á±â°£¸¸ÀÌ Åë°èÇÐÀû ÀÇÀÇ°¡ ÀÖ¾ú´Ù( p=0.017). Ä¡·á ÈÄ ÇÕº´ÁõÀº 1¸í¿¡¼­ °©»ó¼±±â´ÉÀúÇÏÁõÀÌ ³ªÅ¸³µ´Ù.
°á ·Ð : Á¶±â¼º¹®¾Ï¿¡¼­ ±ÙÄ¡Àû ¹æ»ç¼±Ä¡·á½Ã Ä¡·á±â°£ÀÌ ±¹¼ÒÁ¾¾çÁ¦¾îÀ²¿¡ ¿µÇâÀ» ÁÙ ¼ö ÀÖ´Â ÀÎÀÚ·Î ºÐ¼®µÇ¾ú´Ù.

Purpose : This study was performed to find out the prognostic factors affecting local control in early glottic cancer treated with radiation therapy alone.
Materials and Methods : We analysed 37 patients of histologically confirmed early glottic cancer treated at Chonnam National University Hospital between July 1986 and December 1995, retrospectively. Age of patients ranged from 30 to 73 years
(median; 59
years). Thirty-five (95%) patients were male. Histological type was all squamous cell carcinoma. According to the staging system of 1997 American Joint Committee on Cancer, 37 patients were restaged as follows: T1a; 27 (73%), T1b; 3 (8%), T2; 7
(19%).
Radiation therapy was done using 6 MV X-ray of linear accelerator. The range of total radiation dose delivered to the glottic lesion was between 5,040 cGy and 7,020 cGy (median; 6,600 cGy). Median follow-up period was 80 months. Local control
rates
were
calculated by Kaplan-Meier method. Generalized Wilcoxon test was used to evaluate the difference of control rates between comparable groups. Multivariate analysis using Cox proportional hazard model was done to find out prognostic factors
affecting
local control.
Results : 5 year survival rate of 37 patients was 89%. Local control rate of 37 patients was 74% in 5 years. We included age, T-stage, anterior commissure involvement, fraction size, total radiation dose, treatment time of radiotherapy as
potential
prognostic factors in univariate and multivariate analysis. As a result, treatment time had statistical significance in local control rate in both univariate ( p=0.026) and multivariate ( p=0.017) analysis. Complication was not recorded except
one
patient with hypothyroidism.
Conclusion : This study revealed that overall treatment time of radiation was a significant factor affecting local control rate.

Å°¿öµå

Á¶±â¼º¹®¾Ï; ¹æ»ç¼±Ä¡·á; ±¹¼ÒÁ¾¾çÁ¦¾îÀ²; ¿¹ÈÄÀÎÀÚ; Early glottic cancer; Radiotherapy; Local control; Prognostic factors;

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