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Lymphopenia after Mediastinal Irradiation in Lung Cancer

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ÇÏö¼ö(Ha Chul-Soo) - Åػ罺´ëÇб³ MD¾Ø´õ½¼ ¾Ï¼¾ÅÍ Ä¡·á¹æ»ç¼±°ú
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À̽ÂÀÏ(Lee Seung-Il) - Á¶¼±´ëÇб³ ÀÇ°ú´ëÇÐ ³»°úÇб³½Ç
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±â±ÙÈ«(Kee Keun-Hong) - Á¶¼±´ëÇб³ ÀÇ°ú´ëÇÐ º´¸®Çб³½Ç
ÀüÈ£Á¾(Jeon Ho-Jong) - Á¶¼±´ëÇб³ ÀÇ°ú´ëÇÐ º´¸®Çб³½Ç

Abstract

¸ñÀû: ¹æ»ç¼±Ä¡·á°¡ ¼¼Æ÷¸Å°³¸é¿ªÀ» ÀúÇϽÃŲ´Ù´Â º¸°íµéÀÌ ÀÖ¾úÀ¸³ª À̸¦ ¹æ»ç¼±Ä¡·á ºÎÀ§ ¾ÈÀÇ Ç÷·ù¿Í °ü·ÃÇؼ­ °í·ÁµÇÁö´Â ¾Ê°í ÀÖ´Ù. º» ¿¬±¸´Â Æó¾ÏÀÇ ¹æ»ç¼±Ä¡·á ÈÄ¿¡ ¹ß»ýÇÏ´Â ¹éÇ÷±¸ °¨¼Ò, ƯÈ÷ ¸²ÇÁ±¸ÀÇ °¨¼Ò¸¦ ÈÄÇâÀûÀ¸·Î ºÐ¼®ÇÏ°í, ¸é¿ª¾ïÁ¦ÀÇ ÇÑ ±âÀüÀ¸·Î¼­ ¹æ»ç¼±Ä¡·á ºÎÀ§ ¾ÈÀÇ ¸¹Àº Ç÷¾×·®°ú µ¿ÀûÀÎ Ç÷·ù°¡ °ü·ÃµÉ ¼ö ÀÖ´ÂÁö¸¦ ¾Ë¾Æº¸°íÀÚ ÇÑ´Ù.

´ë»ó ¹× ¹æ¹ý: 34¸íÀÇ Æó¾ÏȯÀÚ µéÀ» ´ë»óÀ¸·Î ÇÏ¿´À¸¸ç, ¹æ»ç¼±Ä¡·á ´Üµ¶±º(RT±º)ÀÌ 10¸í, ¹æ»ç¼±Ä¡·á¿Í È­Çпä¹ý º´¿ë±º(RT/CT±º) 16¸í, È­Çпä¹ý ´Üµ¶±º(CT±º)ÀÌ 8¸íÀ̾ú´Ù. ¸»ÃÊÇ÷¾×ÀÇ Àüü ¹éÇ÷±¸¼ö¿Í ¸²ÇÁ±¸¼ö, Àüü ¹éÇ÷±¸¼ö Áß ¸²ÇÁ±¸¼öÀÇ ºñÀ²(¸²ÇÁ±¸ À²)À» ¹æ»ç¼±Ä¡·á ÀüÁßÈÄ¿¡, È­Çпä¹ý ÀüÈÄ¿¡ ÃøÁ¤ÇÏ¿´´Âµ¥ ¹æ»ç¼±Ä¡·á Áß¿¡´Â ¸Å ÁÖ¸¶´Ù °Ë»ç¸¦ ÇÏ¿´°í, È­Çпä¹ý°ú ¹æ»ç¼±Ä¡·á ÈÄ¿¡´Â Á» ´õ ±ä °£°ÝÀ¸·Î ÇÏ¿´´Ù. ȯÀÚÀÇ Æ¯¼º°ú º´º¯ÀÇ Æ¯¼ºÀº ¼¼ ±º°£¿¡ Åë°èÀûÀ¸·Î À¯ÀÇÇÑ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù. Ä¡·á¹æ¹ý¿¡ À־µµ RT±º°ú RT/CT±º »çÀÌ¿¡ ÃÑ ¹æ»ç¼±·®, ºÐÇÒÁ¶»ç¼±·®, Ä¡·á¸éÀû, Ä¡·á¿ëÀûÀº Åë°èÇÐÀûÀ¸·Î À¯ÀÇÇÑ Â÷ÀÌ´Â ¾ø¾ú´Ù. ¹æ»ç¼±Ä¡·á¸¦ ½ÃÇàÇÑ ±º(RT±º, RT/CT±º)°ú ¹æ»ç¼±Ä¡·á¸¦ ½ÃÇàÇÏÁö ¾ÊÀº ±º(CT±º)ÀÇ Æò±Õ ÃßÀû±â°£Àº °¢°¢ 6°³¿ù°ú 8°³¿ùÀ̾ú´Ù.

°á°ú: Ä¡·á ÈÄ Àüü ¹éÇ÷±¸¼öÀÇ º¯È­´Â ´Ù¸¥ Ä¡·á±º °£¿¡ ÀÇ¹Ì ÀÖ´Â Â÷ÀÌ´Â º¸ÀÌÁö ¾Ê¾Ò´Ù. ¹æ»ç¼±Ä¡·á¸¦ ½ÃÇàÇÑ RT±º°ú RT/CT±ºÀº ¹æ»ç¼±Ä¡·á ÈÄ ÈξÀ ³·Àº ¸²ÇÁ±¸¼ö¿Í ¸²ÇÁ±¸À²À» º¸¿´´Ù. Ä¡·á Àü ¸²ÇÁ±¸¼ö¿Í ÃÖÁ¾ ¸²ÇÁ±¸¼ö»çÀÌÀÇ °¨¼Ò´Â ¹æ»ç¼±Ä¡·á¸¦ ½ÃÇàÇÑ ±º°ú ½ÃÇàÇÏÁö ¾ÊÀº ±º°£¿¡ Åë°èÇÐÀûÀ¸·Î À¯ÀÇÇÑ Â÷À̸¦ º¸¿´´Ù(p=0.044). ¶ÇÇÑ ¸²ÇÁ±¸ À²¿¡ À־µµ Ä¡·á Àü°ú ÃÖÁ¾ ¸²ÇÁ±¸ À² »çÀÌÀÇ °¨¼Ò´Â ¹æ»ç¼±Ä¡·á¸¦ ½ÃÇàÇÑ ±º°ú ½ÃÇàÇÏÁö ¾ÊÀº ±º°£¿¡ Åë°èÇÐÀûÀ¸·Î À¯ÀÇÇÑ Â÷À̸¦ º¸¿´´Ù(p=0.037).

°á·Ð: ¸²ÇÁ±¸ °¨¼ÒÁõÀº È­Çпä¹ý¸¸À» ½ÃÇàÇÑ °æ¿ìº¸´Ù ¹æ»ç¼±Ä¡·á¸¦ ½ÃÇàÇÑ °æ¿ì¿¡ ´õ ÇöÀúÇÏ¿´´Ù. ±×¸®°í ÀÌ·¯ÇÑ ¸²ÇÁ±¸ °¨¼ÒÁõÀÌ Æó¾ÏÀÇ ÈäºÎ ¹æ»ç¼±Ä¡·á ÈÄ ¸é¿ª°¨¼ÒÀÇ ÇÑ ¿øÀÎÀÌ µÉ ¼öµµ ÀÖ°Ú´Ù. Àú¼±·®ÀÇ ¹æ»ç¼±Á¶»ç ÈÄ ¸²ÇÁ±¸ÀÇ ¾ÆÆ÷Åä½Ã½º À¯µµ¸¦ º¸¿©ÁØ ÀÌÀüÀÇ ¸î¸î ¿¬±¸µéÀ» ÇÔ²² »ý°¢ÇØ º¼ ¶§, Á¶½É½º·´°Ô Á¦¾ÈÇÏ°í ½ÍÀº °ÍÀº Ȥ½Ã º» ¿¬±¸¿¡¼­ º¸ÀÌ´Â ¸²ÇÁ±¸ °¨¼ÒÁõÀÌ ¹æ»ç¼±Á¶»ç¾ß ³»ÀÇ ¸¹Àº Ç÷¾×·®À̳ª ¿ªµ¿ÀûÀÎ Ç÷·ù¿Í ¾à°£ÀÇ °ü·Ã¼ºÀÌ ÀÖÀ» ¼öµµ ÀÖ´Ù´Â °ÍÀÌ´Ù.
Purpose: This study was undertaken to retrospectively evaluate white blood cell kinetics, especially lymphocyte depression after different treatments, and to find the correlation between immunosuppression and large blood volume and dynamic blood flow within the mediastinal radiotherapy (RT) field in lung cancer.

Materials and Methods: Thirty-four patients with lung cancer were retrospectively evaluated; 10 patients had only radiotherapy (RT group), 8 had chemotherapy (CT group) and 16 had chemotherapy and radiotherapy (RT/CT group). The mean follow-up periods of the RT-including groups (RT group and RT/CT group) and the RT-excluding group (CT group) were 6 and 8 months, respectively. Complete blood cell counts including lymphocyte percentage (%) were checked weekly during RT but less frequently during CT and after RT.

Results: Changes in total white blood cell counts were not significantly different among the three groups. The lymphocyte count and lymphocyte % were much lower in the RT-including groups than in the RT- excluding group. The difference between pre-treatment and final lymphocyte count and the difference between pre-treatment and final lymphocyte % were significant (p=0.044 and p=0.037) between the RT-including groups and the RT-excluding group.

Conclusion: Lymphopenia was more marked after treatment containing RT than CT only. Lymphopenia may be one cause of a compromised immune system after mediastinal irradiation in lung cancer. We suggest cautiously that previous studies showing evidence of lymphocyte apoptosis after low-dose irradiation and large blood volume and dynamic blood flow within the RT fields could be somewhat related to lymphopenia after mediastinal irradiation.

Å°¿öµå

Æó¾Ï, Á¾°Ýµ¿ ¹æ»ç¼±Á¶»ç, ¸²ÇÁ±¸ °¨¼ÒÁõ, ¸é¿ª¾ïÁ¦, Ç÷¾×·®, Ç÷·ù, Lung cancer, Mediastinal irradiation, Lymphopenia, Immunosuppression, Blood volume, Blood flow,
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ÁßÀç¹æ¹ý(Intervention Type)
ÁßÀç¸íĪ(Intervention Name)
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À¯È¿¼º°á°ú(Recomendation)
Lymphopenia was more marked after treatment containing RT than CT only.
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DOI
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ICD 03
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