Aggregatibacter aphrophilus¿¡ ÀÇÇÑ È­³ó¼º ôÃß¿° 1¿¹
A Case of Pyogenic Spondylitis Due to Aggregatibacter aphrophilus

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±è°èÇü(Kim Kye-Hyung) - ºÎ»ê´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø ³»°úÇб³½Ç
±è³²Èñ(Kim Nam-Hee) - ºÎ»ê´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø Áø´Ü°Ë»çÀÇÇб³½Ç
½Å°æÈ­(Shin Kyung-Hwa) - ºÎ»ê´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø Áø´Ü°Ë»çÀÇÇб³½Ç
±è½Å¿µ(Kim Shin-Young) - ºÎ»ê´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø Áø´Ü°Ë»çÀÇÇб³½Ç
ÀåÃ¶ÈÆ(Chang Chul-Hun L.) - ºÎ»ê´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø Áø´Ü°Ë»çÀÇÇб³½Ç
ÀÌÁ¾À±(Yi Jong-Youn) - ºÎ»ê´ëÇб³ ÀÇÇÐÀü¹®´ëÇпø Áø´Ü°Ë»çÀÇÇб³½Ç

Abstract

Aggregatibacter aphrophilus´Â ±¸°­³» Á¤»ó±Õ¹«¸® Áß Çϳª·Î ÁÖ·Î °¨¿°¼º ½É³»¸·¿°À» À¯¹ßÇÑ´Ù. ¶ÇÇÑ ¸Å¿ì µå¹°°Ô ôÃß¿°°ú °°Àº °ñ ¹× °üÀýÀÇ °¨¿°À» ÀÏÀ¸Å°±âµµ ÇÑ´Ù°í ¾Ë·ÁÁ® ÀÖÀ¸³ª ±¹³»¿¡¼­´Â º¸°íµÈ Áõ·Ê°¡ ¾ø¾ú´Ù. ÀúÀÚµéÀº °¨¿°¼º ½É³»¸·¿°ÀÌ µ¿¹ÝµÇÁö ¾ÊÀº A. aphrophilus È­³ó¼º ôÃß¿° ȯÀÚ¸¦ °æÇèÇÏ¿´±â¿¡ º¸°íÇϰíÀÚ ÇÑ´Ù. °íÇ÷¾Ð°ú ´ç´¢°¡ ÀÖ´Â 64¼¼ ³²ÀÚ°¡ 3ÁÖ Àü ½ÃÀÛµÈ Ç㸮 ÅëÁõÀ¸·Î ³»¿øÇÏ¿´´Ù. ³»¿ø ´ç½Ã ¹ß¿­Àº ¾ø¾úÀ¸³ª ¿äÃß¿¡ ½ÉÇÑ ÅëÁõÀÌ ÀÖ¾ú°í, ¹éÇ÷±¸ ¹× C-¹ÝÀÀ´Ü¹éÁúÀÌ Áõ°¡µÇ¾î ÀÖ¾ú´Ù. Ç÷¾×¹è¾ç¿¡¼­´Â ±ÕÀÌ ÀÚ¶óÁö ¾Ê¾ÒÀ¸³ª, ôÃß ÀÚ±â°ø¸í¿µ»ó¿¡¼­ ¿äÃß¿Í Ãµ°ñ ¹× ±× ÁÖº¯À¸·Î ¿°Áõ°ú ³ó¾çÀÌ °üÂûµÇ¾î ÄÄÇ»ÅÍ´ÜÃþÃÔ¿µ À¯µµ ÇÏ¿¡ °í¸§À» ÈíÀÎÇÏ¿´´Ù. ÈíÀÎÇÑ °í¸§À» ¹è¾ç ½Ã ÀÏ¹Ý °íÇü¹èÁö¿¡¼­´Â ±ÕÀÌ Áõ½ÄµÇÁö ¾Ê¾ÒÀ¸³ª Ç÷¾×¹è¾çº´¿¡¼­´Â ¹è¾ç 5Àϰ¿¡ ±ÕÀÌ Áõ½ÄµÇ¾úÀ¸¸ç, ±×¶÷¿°»ö¿¡¼­ ªÀº ±×¶÷À½¼º ¸·´ë±ÕÀÌ °üÂûµÇ¾ú´Ù. ÀÌ ºÐ¸®ÁÖ´Â ÀÚµ¿È­ Àåºñ¿¡¼­ »ýÈ­ÇÐÀûÀ¸·Î µ¿Á¤ÇÑ °á°ú A. aphrophilus¿´°í, 16S ribosomal RNA À¯ÀüÀÚ ¿°±â¼­¿­ ºÐ¼®¿¡¼­ A. aphrophilus·Î ÃÖÁ¾µ¿Á¤ÇÏ¿´´Ù. ±ÕÁ¾ µ¿Á¤ °á°ú°¡ A. aphrophilus¿´À¸¹Ç·Î ½É³»¸·¿° µ¿¹Ý ¿©ºÎ¸¦ È®ÀÎÇϱâ À§ÇØ ¾ÈÀú °Ë»ç ¹× ½ÉÃÊÀ½ÆÄ¸¦ ½ÃÇàÇÏ¿´À¸³ª, ¾ÈÀú °Ë»ç´Â Á¤»óÀ̾ú°í ½ÉÃÊÀ½ÆÄ¿¡¼­ ½É³»¸·¿°ÀÇ Áõ°Å´Â ¹ß°ßµÇÁö ¾Ê¾ÒÀ¸¸ç, ±¸°­º´º¯À̳ª Ä¡°úÄ¡·áº´·Âµµ ¾ø¾ú´Ù. Ç×±ÕÁ¦¸¦ 8ÁÖ°£ Åõ¿©ÇÏ¿´À¸³ª Ç㸮ÅëÁõÀÌ Áö¼ÓµÇ¾î ôÃßü Á¦°Å¼úÀ» ½ÃÇàÇÏ¿´°í, ÀÌÈÄ ÅëÁõÀº È£ÀüµÇ¾ú´Ù. A. aphrophilus´Â È­³ó¼º ôÃß¿°ÀÇ µå¹® ¿øÀαÕÀ¸·Î¼­, ½É³»¸·¿° ¾øÀ̵µ ôÃß¿°À» ÀÏÀ¸Å³ ¼ö ÀÖ´Ù. È­³ó¼º ôÃß¿°¿¡¼­ ÀϹÝÀûÀÎ ¼¼±Õ ¹è¾çÀ» ½Ç½ÃÇßÀ» ¶§ ±ÕÀÌ Àß ÀÚ¶óÁö ¾ÊÀ¸¸é A. aphrophilus¿Í
°°Àº ¼ºÀåÁ¶°ÇÀÌ ±î´Ù·Î¿î ±ÕÀ» ÀǽÉÇÏ¿© Ç÷¾×¹è¾çº´À» »ç¿ëÇÏ´Â °ÍÀ» °í·ÁÇØ¾ß ÇÑ´Ù.
Aggregatibacter aphrophilus, a normal component of oral cavity flora, mostly causes infective endocarditis and only rarely causes spondylitis; no spondylitis cases have been previously reported in Korea. We report a case of pyogenic spondylitis due to A. aphrophilus without endocarditis. A 64-year-old man was admitted for back pain lasting 3 weeks. There was severe tenderness on lumbar spines but no fever. Laboratory evaluation showed leukocytosis and elevated C-reactive protein. Blood cultures were negative. Magnetic resonance imaging showed psoas abscess and vertebral inflammation. Pus was obtained by computerized tomography-guided aspiration from the psoas abscess and inoculated into blood culture bottles. After 5 days of incubation, growth was detected: the isolate was a Gram-negative short rod bacteria identified as A. aphrophilus by the automated system; this was confirmed by 16S ribosomal RNA sequencing. There was no evidence of endocarditis in echocardiography and retinal examination. Back pain persisted despite 8 weeks of antibiotic treatment, so vertebral corpectomy was performed. A. aphrophilus, a rare cause of pyogenic spondylitis, can induce spondylitis without endocarditis. If a patient with pyogenic spondylitis shows negative routine bacterial cultures, fastidious organisms such as A. aphrophilus should be suspected and the blood culture bottles could be used.

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Aggregatibacter aphrophilus, Pyogenic spondylitis, Vertebral osteomyelitis
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