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¹æ»ç¼±Ä¡·á¸¦ ¹ÞÀº ±Ù ħÀ±¼º ¹æ±¤¾ÏÀÇ ¿¹ÈÄ ÀÎÀÚ The Prognostic Factors Affecting Survival in Muscle Invasive Bladder Cancer Treated with Radiotherapy

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Abstract

¸ñÀû: ±Ù ħÀ±¼º ¹æ±¤¾Ï¿¡¼­ »ýÁ¸À²¿¡ ¿µÇâÀ» ÁÖ´Â ¿¹ÈÄ ÀÎÀÚ¸¦ ºÐ¼®ÇÏ°í ¹æ»ç¼± Ä¡·áÀÇ ¿ªÇÒÀ» ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.

´ë»ó ¹× ¹æ¹ý: 1986³â 1¿ùºÎÅÍ 1998³â 12¿ù±îÁö Àü³²´ëÇб³º´¿ø¿¡¼­ ±Ù ħÀ±¼º ¹æ±¤¾ÏÀ¸·Î Áø´Ü ¹Þ°í °èȹµÈ Ä¡·á¸¦ ¿Ï·áÇÑ 28¸íÀÇ È¯ÀÚ¸¦ ´ë»óÀ¸·Î ÈÄÇâÀû ºÐ¼®À» ½ÃÇàÇÏ¿´´Ù. Àüü 28¸í Áß ³²ÀÚ°¡ 21¸í ¿©ÀÚ°¡ 7¸íÀ̾úÀ¸¸ç ȯÀÚÀÇ ¿¬·ÉÀº 49¼¼¿¡¼­
84¼¼±îÁö
ºÐÆ÷ÇÏ¿´°í Áß¾Ó°ªÀº 72¼¼¿´´Ù. Á¶Á÷ÇÐÀûÀ¸·Î ¸ðµÎ ÀÌÇà»óÇǾÏÀ¸·Î È®ÁøµÇ¾úÀ¸¸ç grade 1Àº 1¸í, grade 2´Â 15¸í, grade 3´Â 9¸í, ºÒ¸íÀÎ °æ¿ì°¡ 3¸íÀ̾ú´Ù. ¹æ»ç¼±Ä¡·á´Â ¼±Çü°¡¼Ó±âÀÇ 6 MV ¶Ç´Â 10 MV X-ray¸¦ ÀÌ¿ëÇÏ¿´À¸¸ç ÀÏȸ¼±·®Àº 1.8 ³»Áö 2.0 §í·Î 3¹®
³»Áö
4¹®
Á¶»ç¸¦ ½ÃÇàÇÏ¿´´Ù. Åõ¿©µÈ Ãѹæ»ç¼±·®Àº 59 ³»Áö 66.6 §í¿´°í Áß¾Ó°ªÀº 61.24 §í¿´´Ù. »ýÁ¸À²Àº Kaplan-Meier¹ýÀ¸·Î »êÃâÇÏ¿´°í µÎ ±º°£ÀÇ ºñ±³´Â Log- rank test¸¦ ÀÌ¿ëÇÏ¿´´Ù. »ýÁ¸À²¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â ¿äÀεéÀ» Cox ºñ·ÊÀ§Çè¸ðµ¨·Î ´Ùº¯·® ºÐ¼®ÇÏ¿´´Ù.

°á°ú: »ýÁ¸À²Àº 1, 2, 3, 5³â¿¡ °¢°¢ 76, 46, 33, 33%·Î ³ªÅ¸³µ´Ù. Áß¾Ó »ýÁ¸ ±â°£Àº 19°³¿ùÀ̾ú´Ù. »ýÁ¸À²¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â °¡´É¼º ÀÖ´Â ¿¹ÈÄ ÀÎÀڷμ­ ¿¬·É(70¼¼ ¹Ì¸¸ ´ë ÀÌ»ó), ¼ºº°, ´ç´¢º´, °íÇ÷¾Ð, ¼ö½ÅÁõ µ¿¹Ý ¿©ºÎ, T-º´±â(T3a ´ë T3b ÀÌ»ó), TUR,
Ç×¾ÏÈ­Çпä¹ý ¿©ºÎ, ¹æ»ç¼±Ä¡·á±â°£, ¹æ»ç¼±·®(60 §í ¹Ì¸¸ ´ë 60 §í ÀÌ»ó), ¹æ»ç¼±Ä¡·á¹ÝÀÀÁ¤µµ¸¦ ºÐ¼®¿¡ Æ÷ÇÔ½ÃÄ×À¸¸ç, À̵é Áß ´Üº¯·®ºÐ¼®¿¡¼­ T-º´±â( p=0.078)¿Í ¹æ»ç¼±·®( p=0.051)ÀÌ Åë°èÇÐÀû ÀÇÀÇ¿¡ Á¢±ÙÇÏ¿´À¸¸ç ¹æ»ç¼±Ä¡·á¹ÝÀÀ Á¤µµ( p=0.011)°¡
Åë°èÇÐÀûÀ¸·Î
ÀÇÀÇ ÀÖ°Ô ³ªÅ¸³µ´Ù. ±×·¯³ª ´Ùº¯·®ºÐ¼®¿¡¼­´Â Åë°èÇÐÀû ÀÇÀǸ¦ °¡Áö´Â ÀÎÀÚ°¡ ¾ø¾ú´Ù.

°á·Ð: ±Ù ħÀ±¼º ¹æ±¤¾Ï¿¡¼­ »ýÁ¸À²¿¡ ¹ÌÄ¡´Â ¿¹ÈÄ ÀÎÀÚ·Î ¹æ»ç¼±·®, ¹æ»ç¼±Ä¡·á¹ÝÀÀ Á¤µµ°¡ ´Üº¯·®ºÐ¼®¿¡¼­ ÀǹÌÀÖ°Ô ³ªÅ¸³µÀ¸³ª ´Ùº¯·® ºÐ¼®¿¡¼­´Â È®ÀεÇÁö ¸øÇÏ¿´À¸¸ç ÇâÈÄ ´õ¿í ¸¹Àº Áõ·Ê¸¦ ´ë»óÀ¸·Î ÀÌ¿¡ ´ëÇÑ ÀüÇâÀû ¹«ÀÛÀ§ ÀÓ»ó ½ÃÇèÀÌ ÇÊ¿äÇÒ
°ÍÀ¸·Î
»ý°¢µÈ´Ù.

Purpose: This study analyzed the prognostic factors affecting the survival rate and evaluated the role of radiation therapy in muscle-invading bladder cancer.

Materials and Methods: Twenty eight patients with bladder cancer who completed planned definitive radiotherapy in the Departments of Therapeutic Radiology and Urology, Chonnam National University Hospital between Jan. 1986 to Dec. 1998
were
retrospectively analyzed. The reviews were performed based on the patients' medical records. There were 21 males and 7 females in this study. The median of age was 72 years old ranging from 49 to 84 years. All patients were confirmed as having
transitional cell carcinoma with histological grade 1 in one patient, grade 2 in 15, grade 3 in 9, and uninformed in 3. Radiation therapy was performed using a linear accelerator with 6 or 10 MV X-rays. Radiation was delivered daily with a 1.8 or
2.0 §í
fraction size by 4 ports (anterior-posterior, both lateral, alternatively) or 3 ports (Anterior and both lateral). The median radiation dose delivered to the isocenter of the target volume was 61.24 §í ranging from 59 to 66.6 §í. The survival
rate
was
calculated by the Kaplan-Meier method. Multivariate analysis was performed on the prognostic factors affecting the survival rate.

Results: The survival rate was 76%, 46%, 33%, 33% at 1, 2, 3, 5 years, respectively, with 19 months of median survival. The potential factors of age (less than 70 years vs above 70), sex, diabetes mellitus, hypertension, hydronephrosis,
T-stage
(T3a vs T3b), TUR, chemotherapy, total duration of radiotherapy, radiation dose (less than 60 §í vs above 60 §í), and the treatment response were investigated with uni- and multivariate analysis. In univariate analysis, the T-stage ( p=0.078) and
radiation dose ( p=0.051) were marginally significant, and the treatment response ( p=0.011) was a statistically significant factor on the survival rate. Multivariate analysis showed there were no significant prognostic factors affecting the
survival
rate.

Conclusion: The treatment response and radiation dose are suggeted as the statistically significant factors affecting the survival rate of muscle invasive bladder cancer. A Further prospective randomized study is needed to confirm these
prognostic factors.

Å°¿öµå

±Ù ħÀ±¼º ¹æ±¤¾Ï; ¹æ»ç¼±Ä¡·á; »ýÁ¸À²; ¿¹ÈÄÀÎÀÚ; Bladder cancer; Radiotherapy; Survival rate; Prognostic factor;

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