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¼Ò¾Æ¿¡¼­ 4Á¦¿ä¹ý ÈÄ enzyme immunoassay¿¡ ÀÇÇÑ Helicobacter pylori ´ëº¯ Ç׿ø °ËÃâ¹ýÀÇ À¯¿ë¼º¿¡ ´ëÇÑ ¿¬±¸ Role of enzyme immunoassay for the Detection of Helicobacter pylori Stool Antigen in Confirming Eradication After Quadruple Therapy in Children.

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¾çÇý¶õ ( Yang Hye-Ran ) 
¼­¿ï´ëÇб³ ÀÇ°ú´ëÇÐ ¼Ò¾Æ°úÇб³½Ç

¼­Á¤±â ( Seo Jeong-Kee ) 
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Abstract

¸ñ Àû: H. pylori ´ëº¯Ç׿ø(Helicobacter pyloristool antigen; HpSA) °Ë»ç´Â H. pylori °¨¿° ¿©ºÎ¸¦ Áø´ÜÇÏ´Â µ¥ ÀÌ¿ëµÇ´Â ºñħ½ÀÀû °Ë»çÀÌÁö¸¸, ¼Ò¾Æ¿¡¼­ Á¦±Õ¿ä¹ý ÈÄ H. pylori ´ëº¯Ç׿ø°Ë»çÀÇ À¯¿ë¼º¿¡ ´ëÇÑ ¿¬±¸°¡ °ÅÀÇ ÀÌ·ç¾îÁöÁö ¸øÇÑ »óÅÂÀÌ´Ù.
º» ¿¬±¸¿¡¼­´Â ¼Ò¾Æ¿¡¼­ H. pyloriÀÇ Á¦±Õ ¿©ºÎ¸¦ È®ÀÎÇÏ´Â µ¥ ÀÖ¾î enzyme immunoassay¿¡ ÀÇÇÑ HpSA °Ë»çÀÇ Áø´Ü Á¤È®µµ¸¦ Æò°¡ÇÏ°íÀÚ ÇÏ¿´´Ù.

¿¬±¸¹æ¹ý: 2001³â 1¿ùºÎÅÍ 2003³â 10¿ù±îÁö ¼­¿ï´ëÇб³º´¿ø ¼Ò¾Æ°ú¿¡¼­ 146¸íÀÇ ¼Ò¾Æ(Æò±Õ ¿¬·É9.3¡¾4.3¼¼)¸¦ ´ë»óÀ¸·Î ÃÑ 164ȸÀÇ H. pylori ´ëº¯ Ç׿ø°Ë»ç(Primier platinum HpSA)¸¦ ½ÃÇàÇÏ¿´´Ù. H.pylori °¨¿°¿©ºÎ¸¦ È®ÀÎÇϱâ À§ÇØ ¸ðµç ȯ¾Æ¿¡¼­
H. pylori ´ëº¯Ç׿ø°Ë»ç¿Í »óºÎÀ§Àå°ü³»½Ã°æ¿¡ ÀÇÇÑ À§Á¡¸· »ý°ËÀ» º´ÇàÇÏ¿´´Ù. H. pylori °¨¿°ÀÌ È®ÀÎµÇ¾î »çÁ¦¿ä¹ý(omeprazole, amoxicillin, metronidazole, bismuth subcitrate)À» 1ÁÖ µ¿¾È ½ÃÇà ¹ÞÀº ȯ¾Æµé¿¡¼­´Â Ä¡·á Á¾°á ÈÄ ÃÖ¼Ò 4ÁÖ°¡ °æ°úÇÏ¿´À» ¶§
À§³»½Ã°æ°ú H. pylori ´ëº¯Ç׿ø°Ë»ç¸¦ ¹Ýº¹ ½Ç½ÃÇÏ¿´´Ù. H. pylori ´ëº¯Ç׿ø°Ë»ç´Â OD°ªÀÌ 0.16 ÀÌ»ó ÀÏ ¶§ ¾ç¼º, 0.14¡­0.16 »çÀÌ´Â °¨¿° ¹ÌÈ®Á¤, 0.14 ¹Ì¸¸Àº À½¼ºÀ¸·Î ÆÇÁ¤ÇÏ¿´´Ù.

°á °ú: 1) Á¦±Õ Àü ½ÃÇàÇÑ 131ȸÀÇ À§³»½Ã°æ Á¶Á÷°Ë»ç °á°ú 28¸íÀÌ H. pylori ¾ç¼ºÀ̾ú°í ³ª¸ÓÁö 103¸íÀº H. pylori À½¼ºÀ̾ú´Ù. µ¿½Ã¿¡ ½ÃÇàÇÑ H.pylori ´ëº¯Ç׿ø°Ë»ç °á°ú¿¡¼­ 30¸íÀÌ H. pylori ¾ç¼ºÀ̾ú°í, 101¸íÀÌ À½¼ºÀ¸·Î ÆÇÁ¤µÇ¾ú´Ù. µû¶ó¼­
Á¦±Õ¿ä¹ý ½ÃÇà Àü H. pylori ´ëº¯Ç׿ø°Ë»çÀÇ ¹Î°¨µµ, ƯÀ̵µ, ¾ç¼º ¿¹ÃøÄ¡, À½¼º ¿¹ÃøÄ¡´Â °¢°¢ 96.4%,97.1%, 90% ±×¸®°í 99%À̾ú´Ù. 2) Á¦±Õ¿ä¹ý 4ÁÖ ÈÄ 33¸íÀÇ È¯¾Æ¿¡¼­ ½ÃÇàÇÑ À§³»½Ã°æ¿¡ ÀÇÇÑ Á¶Á÷°Ë»ç¿¡¼­ H. pylori´Â 24¸í¿¡¼­ À½¼ºÀ̾úÀ¸³ª 9¸íÀº ¿©ÀüÈ÷ ¾ç¼ºÀ̾ú´Ù. µ¿½Ã¿¡ ½ÃÇàÇÑ H. pylori ´ëº¯Ç׿ø°Ë»ç´Â 10¸í¿¡¼­ ¾ç¼º, 23¸í¿¡¼­ À½¼ºÀ̾ú´Ù. µû¶ó¼­ Á¦±Õ¿ä¹ý ÈÄ H. pylori ´ëº¯Ç×
¿ø°Ë»çÀÇ ¹Î°¨µµ, ƯÀ̵µ, ¾ç¼º ¿¹ÃøÄ¡, À½¼º ¿¹ÃøÄ¡´Â °¢°¢ 88.9%, 91.7%, 80% ±×¸®°í 95.7%À̾ú´Ù

°á ·Ð:¼Ò¾Æ¿¡¼­ H. pylori ´ëº¯Ç׿ø°Ë»ç´Â Á¦±ÕÈÄ¿¡µµ ³ôÀº Áø´Ü Á¤È®µµ¸¦ º¸¿´´Ù. µû¶ó¼­ H.pylori ´ëº¯Ç׿ø°Ë»ç´Â ¼Ò¾Æ¿¡¼­ Á¦±Õ¿ä¹ý ÈÄ ±Õ¹Ú¸ê¿©ºÎ¸¦ È®ÀÎÇÏ´Â µ¥¿¡µµ ¸Å¿ì À¯¿ëÇÑ ºñħ½ÀÀûÀÎ °Ë»ç¹æ¹ýÀ̶ó°í ÇÏ°Ú´Ù.

Purpose:The Helicobacter pylori stool antigen (HpSA) enzyme immunoassay is a non-invasive test for the diagnosis and monitoring of H. pylori infection. But, there are few validation studies on the HpSA test after eradication in children. The aim of this study was to assess the diagnostic accuracy of HpSA enzyme immunoassay for the detection of H. pylori to confirm eradication in children.

Methods:From January 2001 to October 2003, 164 tests were performed in 146 children aged 1 to 17.5 years (mean 9.3+/-4.3 years). H. pylori infection was confirmed by endoscopy-based tests (rapid urease test, histology, and culture). All H. pylori infected children were treated with quadruple regimens (Omeprazole, amoxicillin, metronidazole and bismuth subcitrate for 7 days). Stool specimens were collected from all patients for the HpSA enzyme immunoassay (Primier platinum HpSA). The results of HpSA tests were interpreted as positive for OD> or =0.160, unresolved for 0.140< or =OD<0.160, and negative for OD<0.140 at 450 nm on spectrophotometer.

Results: 1) One hundred thirty-one HpSA tests were performed before treatment. The result of HpSA enzyme immunoassay showed three false positive cases and one false negative case. The sensitivity, specificity, positive predictive value, and negative predictive value of HpSA enzyme immunoassay before treatment were 96.4%, 97.1%, 90%, and 99%, respectively. 2) Thirty-three HpSA enzyme immunoassay were performed at least 4 weeks after eradication therapy. The results of HpSA enzyme immunoassay showed two false positive cases and one false negative case. The sensitivity, specificity, positive predictive value, and negative predictive value after treatment were 88.9%, 91.7%, 80%, and 95.7%, respectively.

Conclusion:Diagnostic accuracy of the HpSA enzyme immunoassay after eradication therapy was as high as that of the HpSA test before eradication therapy. The HpSA enzyme immunoassay was found to be a useful non-invasive method to confirm H. pylori eradication in children.

Å°¿öµå

Helicobacter pylori;H. pylori stool antigen (HpSA) enzyme immunoassay;Eradication;Children

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