{"id":24882,"date":"2022-06-27T09:00:24","date_gmt":"2022-06-27T06:00:24","guid":{"rendered":"https:\/\/www.klimikdergisi.org\/?p=24882"},"modified":"2022-11-07T13:04:32","modified_gmt":"2022-11-07T10:04:32","slug":"enterococcus-faecalis-bakteriyemisi","status":"publish","type":"post","link":"https:\/\/www.klimikdergisi.org\/tr\/2022\/06\/27\/enterococcus-faecalis-bakteriyemisi\/","title":{"rendered":"Genotipik Olarak Farkl\u0131 \u0130ki <i>Enterococcus faecalis<\/i> Su\u015funun Neden Oldu\u011fu Bakteriyemi Olgusu"},"content":{"rendered":"<h2 class=\"p1\">G\u0130R\u0130\u015e<\/h2>\n<p class=\"p2\"><i>Enterococcus<\/i> t\u00fcrleri; Gram-pozitif, kok \u015feklinde, fak\u00fcltatif anaerob bakterilerdir. <i>Enterococcus<\/i> spp. hastane kaynakl\u0131 kan dola\u015f\u0131m\u0131 infeksiyonlar\u0131nda en s\u0131k izole edilen \u00fc\u00e7\u00fcnc\u00fc etkendir ve bakteriyemilerin yakla\u015f\u0131k %10\u2019undan sorumludur (1). Enterokoklara ba\u011fl\u0131 bakteriyemilerde en s\u0131k izole edilen t\u00fcr <i>Enterococcus<\/i> <i>faecalis<\/i> olup klinik izolatlar\u0131n %65-70\u2019ini olu\u015fturmaktad\u0131r. Enterokok bakteriyemisine ba\u011fl\u0131 mortalite oranlar\u0131 %19-%50 aras\u0131nda bildirilmektedir. \u0130leri ya\u015f, komorbidite, hastane kaynakl\u0131 bakteriyemi ve uygun olmayan antibiyotik tedavisi mortaliteyi art\u0131ran fakt\u00f6rlerdir (2-5). Literat\u00fcr taramas\u0131 yap\u0131ld\u0131\u011f\u0131nda birbirinden farkl\u0131 iki <i>E. faecalis<\/i> su\u015funun izole edildi\u011fi bir bakteriyemi olgusuna rastlanmad\u0131. Ayn\u0131 kan k\u00fclt\u00fcr\u00fcnden iki <i>E. faecalis<\/i> izole edilen olgulara bak\u0131ld\u0131\u011f\u0131nda ise bunlar\u0131n <i>Enterococcus<\/i> k\u00fc\u00e7\u00fck koloni varyantlar\u0131na ba\u011fl\u0131 infektif endokardit olgular\u0131 oldu\u011fu g\u00f6r\u00fcld\u00fc. Fakat bu olgularda izole edilen su\u015flar\u0131n klonal olarak ayn\u0131 oldu\u011fu g\u00f6sterilmi\u015ftir (6-8). Bu yaz\u0131da; fenotipik ve genotipik farkl\u0131l\u0131k g\u00f6steren iki <i>E. faecalis<\/i> su\u015fu ile geli\u015fen bir bakteriyemi olgusu sunulmaktad\u0131r.<span class=\"Apple-converted-space\">\u00a0<\/span><\/p>\n<h2 class=\"p1\">OLGU<\/h2>\n<p class=\"p4\">Bilinen kronik obstr\u00fcktif akci\u011fer hastal\u0131\u011f\u0131 (KOAH), hipertansiyon, koroner arter hastal\u0131\u011f\u0131, konjestif kalp yetmezli\u011fi, atrial fibrilasyon, aortik kapak replasman\u0131 ve mitral kapak yetmezli\u011fi tan\u0131lar\u0131 olan 81 ya\u015f\u0131ndaki erkek hasta nefes darl\u0131\u011f\u0131, ate\u015f, diz\u00fcri \u015fikayetleri ile acil servise ba\u015fvurdu. Hastan\u0131n yap\u0131lan fizik muayenesinde; akci\u011ferde raller, kar\u0131nda ve ayaklarda \u00f6demin yan\u0131 s\u0131ra akci\u011fer tomografisinde kardiyomegali, bilateral plevral ef\u00fczyon ve bilateral interstisyel \u00f6dem ile uyumlu g\u00f6r\u00fcn\u00fcm saptand\u0131. Hipervolemi ve plevral ef\u00fczyon nedeniyle kardiyak de\u011ferlendirme i\u00e7in yap\u0131lan transtorasik ekokardiyografide (TTE); ejeksiyon fraksiyonu (EF) %45, 3. derece mitral ve<span class=\"Apple-converted-space\">\u00a0 <\/span>trik\u00fcspid yetmezlik izlendi; vejetasyon saptanmad\u0131. Medikal tedavi planlanan hasta i\u00e7 hastal\u0131klar\u0131 servisine yat\u0131r\u0131ld\u0131. \u0130drar k\u00fclt\u00fcr\u00fcnde \u00fcreyen Escherichia coli i\u00e7in antibiyogram\u0131 dikkate al\u0131narak 10 g\u00fcn seftriakson [2 gram\/g\u00fcn, intraven\u00f6z (\u0130V)] verildi. Seftriakson tedavisinden sonra ate\u015f ve diz\u00fcri \u015fikayetleri d\u00fczeldi. Hastan\u0131n \u015fikayeti olmamas\u0131 nedeniyle kontrol ama\u00e7l\u0131 idrar k\u00fclt\u00fcr\u00fc istenmedi. Hastaneye yat\u0131\u015f\u0131n\u0131n 15. g\u00fcn\u00fcnde; kardiyak de\u011ferlendirme i\u00e7in yap\u0131lan trans\u00f6zofageal ekokardiyografide (TEE); aortik kapak etraf\u0131nda paravalv\u00fcler apse \u015f\u00fcphesi uyand\u0131ran g\u00f6r\u00fcn\u00fcm ve mitral kapa\u011f\u0131n \u00f6n leafletinde 4&#215;4 mm\u2019lik vejetasyon \u015f\u00fcphesi uyand\u0131ran alan izlendi. S\u00f6z konusu g\u00f6r\u00fcn\u00fcmler infektif endokardit a\u00e7\u0131s\u0131ndan \u015f\u00fcpheli oldu\u011fu i\u00e7in kardiyak bilgisayarl\u0131 tomografi (BT) ile de\u011ferlendirme \u00f6nerildi. \u0130nfeksiyon hastal\u0131klar\u0131 b\u00f6l\u00fcm\u00fcn\u00fcn \u00f6nerisi ile 24 saat i\u00e7inde \u00fc\u00e7 set kan k\u00fclt\u00fcr\u00fc al\u0131nd\u0131. Hastadan al\u0131nan \u00fc\u00e7 set kan k\u00fclt\u00fcr\u00fcn\u00fcn birinde iki farkl\u0131 <i>E. faecalis<\/i> \u00fcremesi oldu. Bundan d\u00f6rt g\u00fcn sonra hastan\u0131n ate\u015finin y\u00fckselmesi \u00fczerine, \u00e7\u0131kan ate\u015fi takiben g\u00f6nderilen bir set kan k\u00fclt\u00fcr\u00fcnde de iki farkl\u0131 <i>E. faecalis<\/i> \u00fcremesi oldu. Modifiye Duke kriterlerine g\u00f6re; iki maj\u00f6r (ekokardiyografi bulgusu ve kan k\u00fclt\u00fcr\u00fc pozitifli\u011fi) ve iki min\u00f6r (ate\u015f ve infektif endokardit i\u00e7in yatk\u0131nl\u0131k yaratan durum) kriteri kar\u015f\u0131lamas\u0131 nedeniyle olgu infektif endokardit olarak de\u011ferlendirildi. Yat\u0131\u015f\u0131n\u0131n 20. g\u00fcn\u00fcnde infektif endokardit tan\u0131s\u0131 ile ampisilin (12 g\/g\u00fcn) ve gentamisin (3 mg\/kg\/g\u00fcn) tedavisi ba\u015fland\u0131 (9). Hastan\u0131n ate\u015fi 24 saat i\u00e7inde d\u00fc\u015ft\u00fc ve bir daha tekrarlamad\u0131. Ate\u015fin 24 saatte d\u00fc\u015fmesi nedeniyle infektif endokardit de\u011ferlendirilmesinden uzakla\u015f\u0131ld\u0131 ve daha sonra al\u0131nan kontrol kan k\u00fclt\u00fcrlerinde \u00fcreme olmad\u0131. Kardiyak BT\u2019de; aortik valv replasman\u0131 ile ortaya \u00e7\u0131kan ve aortaya uygulanan greftin \u00e7evresinde aort anevrizmas\u0131 kal\u0131nt\u0131s\u0131 olmas\u0131 muhtemel bir g\u00f6r\u00fcn\u00fcm izlendi; herhangi bir vejetasyon saptanmad\u0131. TEE\u2019de aortik valv etraf\u0131ndaki apse \u015f\u00fcphesi uyand\u0131ran g\u00f6r\u00fcn\u00fcm\u00fcn eski anevrizma kal\u0131nt\u0131s\u0131 olabilece\u011fi d\u00fc\u015f\u00fcn\u00fcld\u00fc. Yat\u0131\u015f\u0131n\u0131n 34. g\u00fcn\u00fcnde \u00e7ekilebilen pozitron emisyon tomografisi-bilgisayarl\u0131 tomografi (PET-BT) sonucu infektif endokardit y\u00f6n\u00fcnden negatif sonu\u00e7land\u0131. Bunun \u00fczerine yat\u0131\u015f\u0131n\u0131n 37. ve infektif endokardit i\u00e7in ba\u015flanan tedavinin ise 17. g\u00fcn\u00fcnde antibiyotik tedavisi kesildi.<span class=\"Apple-converted-space\">\u00a0<\/span><\/p>\n<div id=\"attachment_25094\" style=\"width: 2195px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.klimikdergisi.org\/wp-content\/uploads\/2022\/06\/KD.C35.S2_3619_Resim1.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-25094\" class=\"wp-image-25094 size-full\" src=\"https:\/\/www.klimikdergisi.org\/wp-content\/uploads\/2022\/06\/KD.C35.S2_3619_Resim1.png\" alt=\"\" width=\"2185\" height=\"1052\" srcset=\"https:\/\/www.klimikdergisi.org\/wp-content\/uploads\/2022\/06\/KD.C35.S2_3619_Resim1.png 2185w, https:\/\/www.klimikdergisi.org\/wp-content\/uploads\/2022\/06\/KD.C35.S2_3619_Resim1-390x188.png 390w, https:\/\/www.klimikdergisi.org\/wp-content\/uploads\/2022\/06\/KD.C35.S2_3619_Resim1-810x390.png 810w, https:\/\/www.klimikdergisi.org\/wp-content\/uploads\/2022\/06\/KD.C35.S2_3619_Resim1-768x370.png 768w\" sizes=\"auto, (max-width: 2185px) 100vw, 2185px\" \/><\/a><p id=\"caption-attachment-25094\" class=\"wp-caption-text\"><strong> Resim 1.<\/strong> <i>Enterococcus faecalis<\/i> su\u015flar\u0131n\u0131n %5 koyun kanl\u0131 agarda g\u00f6r\u00fcn\u00fcm\u00fc. A: Su\u015f A, B: Su\u015f B<\/p><\/div>\n<p class=\"p2\"><span class=\"s1\">Mikrobiyoloji laboratuvar\u0131na g\u00f6nderilen kan k\u00fclt\u00fcrleri, otomatize BD BACTEC\u2122 FX (Becton Dickinson, ABD) sistemi kullan\u0131larak be\u015f g\u00fcn ink\u00fcbe edildi. Hastadan ilk g\u00f6nderilen \u00fc\u00e7 set kan k\u00fclt\u00fcr\u00fcn\u00fcn bir setinde 14 saat 56 dakika sonunda ve bundan d\u00f6rt g\u00fcn sonra \u00e7\u0131kan ate\u015fi takiben g\u00f6nderilen bir set kan k\u00fclt\u00fcr\u00fcnde 21 saat 4 dakikada pozitif sinyal saptand\u0131. Pozitif sinyal veren \u015fi\u015felerden Gram boyama ile yap\u0131lan direkt mikroskobik incelemede Gram-pozitif koklar g\u00f6r\u00fcld\u00fc. Kan k\u00fclt\u00fcr\u00fc \u015fi\u015felerinden %5 koyun kanl\u0131 agara, eozin-metilen mavisi (EMB) agara ve \u00e7ikolata agara ekim yap\u0131ld\u0131. Koyun kanl\u0131 agar ve \u00e7ikolata agar CO<sub>2<\/sub>\u2019li et\u00fcvde, EMB agar ise aerobik et\u00fcvde 37 \u00b0C\u2019de ink\u00fcbe edildi. Yirmi d\u00f6rt saatlik ink\u00fcbasyonun ard\u0131ndan; %5 koyun kanl\u0131 agarda gri, d\u00fcz, nonhemolitik ve biri b\u00fcy\u00fck (Su\u015f A) di\u011feri ise k\u00fc\u00e7\u00fck (Su\u015f B) olan iki farkl\u0131 fenotipte koloni \u00fcremesi g\u00f6zlendi (Resim 1). \u00c7ikolata agarda da benzer \u015fekilde \u00fcreme olurken, EMB agarda \u00fcreme saptanmad\u0131. \u00dcreyen farkl\u0131 fenotipteki mikroorganizmalar\u0131n her ikisi de konvansiyonel testler ve matriks arac\u0131l\u0131 lazer desorpsiyon\/iyonizasyon-u\u00e7u\u015f zamanl\u0131 k\u00fctle spektrometresi [(MALDI-TOF-MS) (Bruker Daltonik GmbH, Almanya)] sistemi ile &gt;2 skorla <i>E. faecalis<\/i> olarak tan\u0131mland\u0131.<span class=\"Apple-converted-space\">\u00a0<\/span><\/span><\/p>\n<div id=\"attachment_25098\" style=\"width: 1079px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.klimikdergisi.org\/wp-content\/uploads\/2022\/06\/KD.C35.S2_3619_Tablo1.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-25098\" class=\"wp-image-25098 size-full\" src=\"https:\/\/www.klimikdergisi.org\/wp-content\/uploads\/2022\/06\/KD.C35.S2_3619_Tablo1.png\" alt=\"\" width=\"1069\" height=\"859\" srcset=\"https:\/\/www.klimikdergisi.org\/wp-content\/uploads\/2022\/06\/KD.C35.S2_3619_Tablo1.png 1069w, https:\/\/www.klimikdergisi.org\/wp-content\/uploads\/2022\/06\/KD.C35.S2_3619_Tablo1-324x260.png 324w, https:\/\/www.klimikdergisi.org\/wp-content\/uploads\/2022\/06\/KD.C35.S2_3619_Tablo1-672x540.png 672w, https:\/\/www.klimikdergisi.org\/wp-content\/uploads\/2022\/06\/KD.C35.S2_3619_Tablo1-768x617.png 768w\" sizes=\"auto, (max-width: 1069px) 100vw, 1069px\" \/><\/a><p id=\"caption-attachment-25098\" class=\"wp-caption-text\"><strong> Tablo 1.<\/strong> <i>Enterococcus faecalis<\/i> Su\u015flar\u0131n\u0131n Antibiyotik Duyarl\u0131l\u0131k Testi Sonu\u00e7lar\u0131<\/p><\/div>\n<div id=\"attachment_25107\" style=\"width: 1078px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.klimikdergisi.org\/wp-content\/uploads\/2022\/06\/KD.C35.S2_3619_Resim2-2.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-25107\" class=\"wp-image-25107 size-full\" src=\"https:\/\/www.klimikdergisi.org\/wp-content\/uploads\/2022\/06\/KD.C35.S2_3619_Resim2-2.png\" alt=\"\" width=\"1068\" height=\"399\" srcset=\"https:\/\/www.klimikdergisi.org\/wp-content\/uploads\/2022\/06\/KD.C35.S2_3619_Resim2-2.png 1068w, https:\/\/www.klimikdergisi.org\/wp-content\/uploads\/2022\/06\/KD.C35.S2_3619_Resim2-2-390x146.png 390w, https:\/\/www.klimikdergisi.org\/wp-content\/uploads\/2022\/06\/KD.C35.S2_3619_Resim2-2-810x303.png 810w, https:\/\/www.klimikdergisi.org\/wp-content\/uploads\/2022\/06\/KD.C35.S2_3619_Resim2-2-768x287.png 768w\" sizes=\"auto, (max-width: 1068px) 100vw, 1068px\" \/><\/a><p id=\"caption-attachment-25107\" class=\"wp-caption-text\"><strong> Resim 2.<\/strong> <i>Enterococcus faecalis<\/i> su\u015flar\u0131n\u0131n PFGE g\u00f6r\u00fcnt\u00fcs\u00fc.<\/p><\/div>\n<p class=\"p2\"><i>E.<\/i> <i>faecalis<\/i> su\u015flar\u0131n\u0131n antibiyotik duyarl\u0131l\u0131k testleri BD Phoenix\u2122 (Becton Dickinson, ABD) otomatize sistemi ile ger\u00e7ekle\u015ftirildi. Antibiyotik duyarl\u0131l\u0131k test sonu\u00e7lar\u0131 Avrupa Antimikrobiyal Duyarl\u0131l\u0131k Testleri Komitesi (\u201cEuropean Committee on Antimicrobial Susceptibility Testing \u2013 EUCAST\u201d) rehberine g\u00f6re de\u011ferlendirildi ve her iki su\u015f da test edilen t\u00fcm antibiyotiklere duyarl\u0131 bulundu (Tablo 1) (10). Fenotipik olarak farkl\u0131l\u0131k g\u00f6steren iki <i>E. faecalis<\/i> su\u015funun klonal ili\u015fkisi \u201cpulsed field\u201d jel elektroforezi (PFGE) y\u00f6ntemi ile ara\u015ft\u0131r\u0131ld\u0131. PFGE y\u00f6nteminde jelde olu\u015fan de\u011fi\u015fik say\u0131 ve boyutlardaki DNA bantlar\u0131 yaz\u0131l\u0131m analiz sistemine aktar\u0131ld\u0131 ve izolatlar aras\u0131 ili\u015fkilendirme say\u0131sal olarak yap\u0131ld\u0131. GelCompar II ver. 3.0 (Applied Maths, Bel\u00e7ika) yaz\u0131l\u0131m sistemi kullan\u0131larak bant profilleri analiz edildi. \u0130statistiksel analiz kapsam\u0131nda; UPGMA (\u201cUnweighted Pair Group Method with Mathematical Averaging\u201d) kullan\u0131m\u0131 yoluyla PFGE profillerinin dendrogram\u0131 olu\u015fturuldu ve k\u00fcmele\u015fme analizi yap\u0131ld\u0131. \u201cDice\u201d benzerlik katsay\u0131s\u0131na g\u00f6re bantlara ba\u011fl\u0131 olarak su\u015flar aras\u0131ndaki ili\u015fki belirlendi (Resim 2). Tenover kriterlerindeki bant farkl\u0131l\u0131klar\u0131 g\u00f6z \u00f6n\u00fcne al\u0131narak, dendogramda %90-95 aras\u0131 benzerlik grubuna giren pulsotipler birbiriyle ay\u0131rt edilemez olarak kabul edildi; %90-85 aral\u0131\u011f\u0131ndakiler yak\u0131n ili\u015fkili, %85\u2019in alt\u0131nda benzerlik g\u00f6sterenler ise farkl\u0131 pulsotip olarak de\u011ferlendirildi. Su\u015flar\u0131n aras\u0131nda %69 oran\u0131nda benzerlik bulundu\u011fu ve iki su\u015fun birbirinden genotipik olarak farkl\u0131 oldu\u011fu tespit edildi (11, 12).<\/p>\n<h2 class=\"p1\">\u0130RDELEME <span class=\"Apple-converted-space\">\u00a0<\/span><\/h2>\n<p class=\"p4\">Enterokoklara ba\u011fl\u0131 kan dola\u015f\u0131m\u0131 infeksiyonlar\u0131 s\u0131kl\u0131kla \u00fcriner sistem ya da intraabdominal bir odakla ili\u015fkilidir. Endovask\u00fcler kateterler, infektif endokardit ve solunum sistemi di\u011fer g\u00f6r\u00fclen odaklar olmakla birlikte olgular\u0131n yakla\u015f\u0131k \u00fc\u00e7te birinde odak bilinmemektedir (3, 13). Olgumuzda ba\u015flang\u0131\u00e7ta bakteriyemi oda\u011f\u0131 infektif endokardit olarak d\u00fc\u015f\u00fcn\u00fcld\u00fc. Fakat kardiyak BT, PET-BT ve ikinci kez yap\u0131lan TEE sonu\u00e7lar\u0131 de\u011ferlendirildi\u011finde infektif endokardit tan\u0131s\u0131 d\u0131\u015fland\u0131. Yap\u0131lan tetkiklerde bakteriyemiye neden olan bir odak bulunamad\u0131.<span class=\"Apple-converted-space\">\u00a0<\/span><\/p>\n<p class=\"p2\">Son y\u0131llarda antibiyotik diren\u00e7 oranlar\u0131n\u0131n artmas\u0131, virulans fakt\u00f6rlerinin kazan\u0131lmas\u0131 ve biyofilm olu\u015fturma kapasitesi nedeniyle hastane ili\u015fkili infeksiyonlarda <i>Enterococcus<\/i> spp. s\u0131k rastlanan bakterilerdir. <i>Enterococcus <\/i>spp. klinikte kullan\u0131lan \u00e7o\u011fu antibiyoti\u011fe diren\u00e7 geli\u015ftirme potansiyeline sahiptir. T\u00fcm enterokoklar, sefalosporinlere intrinsik olarak diren\u00e7lidir. Ampisilin, aminoglikozidler ve glikopeptidlere kar\u015f\u0131 kazan\u0131lm\u0131\u015f direncin prevalans\u0131 artmaktad\u0131r. Yap\u0131lan \u00e7al\u0131\u015fmalarda, antibiyotik direnci ve mortalite<i> E. faecalis<\/i> izolatlar\u0131nda <i>E. faecium<\/i>\u2019a g\u00f6re daha d\u00fc\u015f\u00fck bulunmu\u015ftur (3, 13). Bu olguda izole edilen iki farkl\u0131 <i>E. faecalis<\/i> su\u015fu test edilen t\u00fcm antibiyotiklere duyarl\u0131 bulundu.<\/p>\n<p class=\"p2\">Kan k\u00fclt\u00fcr\u00fc, kan dola\u015f\u0131m\u0131 infeksiyonlar\u0131n\u0131n tan\u0131s\u0131nda alt\u0131n standartt\u0131r. Kan k\u00fclt\u00fcrlerinin uygun endikasyonlarla, uygun y\u00f6ntemle ve uygun miktarda al\u0131narak laboratuvara g\u00f6nderilmesi do\u011fru tan\u0131 koymada b\u00fcy\u00fck \u00f6neme sahiptir. Al\u0131nan kan miktar\u0131n\u0131n gerekti\u011finden az ya da fazla olmas\u0131, \u00f6rnek al\u0131m\u0131n\u0131n ard\u0131ndan laboratuvara teslim s\u00fcresinin iki saati a\u015fmas\u0131 veya bakteriyeminin aral\u0131kl\u0131 olmas\u0131 yanl\u0131\u015f negatif sonu\u00e7lara neden olabilir (14). Olgumuzda ba\u015flang\u0131\u00e7ta al\u0131nan \u00fc\u00e7 set kan k\u00fclt\u00fcr\u00fcn\u00fcn yaln\u0131zca bir setinde \u00fcreme olup di\u011ferlerinde olmamas\u0131 bu fakt\u00f6rlere ba\u011fl\u0131 olabilir. <i>Enterococcus<\/i> spp.\u2019nin tek kan k\u00fclt\u00fcr\u00fcnde \u00fcremesi durumunda %11-30 oran\u0131nda kontaminasyon kaynakl\u0131 olabilece\u011fi bildirilmi\u015ftir (15). Ancak, olgumuzda daha sonra al\u0131nan bir set kan k\u00fclt\u00fcr\u00fcnde de ayn\u0131 bakterinin \u00fcremesi kontaminasyon olas\u0131l\u0131\u011f\u0131n\u0131 d\u0131\u015flam\u0131\u015ft\u0131r.<\/p>\n<p class=\"p2\">Literat\u00fcrde, k\u00fc\u00e7\u00fck koloni varyantlar\u0131 d\u0131\u015f\u0131nda kan k\u00fclt\u00fcr\u00fcnde iki farkl\u0131 <i>E. faecalis<\/i> izole edilen olgu bulunmamaktad\u0131r. K\u00fc\u00e7\u00fck koloni varyantlar\u0131; normal koloni morfolojisine g\u00f6re daha k\u00fc\u00e7\u00fck, yava\u015f \u00fcreyen, fenotipik ve metabolik \u00f6zellikleri farkl\u0131l\u0131k g\u00f6steren bakterilerdir. Antibiyotik diren\u00e7 oranlar\u0131n\u0131n normal fenotipe g\u00f6re y\u00fcksek olmas\u0131 tedavide zorlu\u011fa neden olmaktad\u0131r (8). Kan k\u00fclt\u00fcrlerinden <i>E. faecalis<\/i>\u2019in k\u00fc\u00e7\u00fck koloni varyantlar\u0131n\u0131n etken olarak izole edildi\u011fi nadir infektif endokardit olgular\u0131 bulunmaktad\u0131r. Fakat bu raporlarda bizim olgumuzdan farkl\u0131 olarak izole edilen su\u015flar\u0131n klonal olarak ayn\u0131 oldu\u011fu PFGE ile g\u00f6sterilmi\u015ftir<span class=\"Apple-converted-space\">\u00a0 <\/span>(6-8).<\/p>\n<p class=\"p2\">Sonu\u00e7 olarak; k\u00fclt\u00fcr plaklar\u0131nda farkl\u0131 fenotipte g\u00f6r\u00fclen bakteriler identifikasyon testlerinin ard\u0131ndan ayn\u0131 mikroorganizma olarak tan\u0131mlansa da ayr\u0131 ayr\u0131 de\u011ferlendirilmeli ve antibiyotik duyarl\u0131l\u0131k testleri her izolat i\u00e7in yap\u0131lmal\u0131d\u0131r. Kan k\u00fclt\u00fcr\u00fcnden fenotipik olarak iki farkl\u0131 <i>E. faecalis <\/i>izole edilmesi durumunda bu su\u015flar\u0131n k\u00fc\u00e7\u00fck koloni varyant\u0131 ya da iki farkl\u0131 su\u015f olabilece\u011fi g\u00f6z \u00f6n\u00fcnde<span class=\"s2\"> bulundurulmal\u0131d\u0131r.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>G\u0130R\u0130\u015e Enterococcus t\u00fcrleri; Gram-pozitif, kok \u015feklinde, fak\u00fcltatif anaerob bakterilerdir. Enterococcus spp. hastane kaynakl\u0131 kan dola\u015f\u0131m\u0131 infeksiyonlar\u0131nda en s\u0131k izole edilen \u00fc\u00e7\u00fcnc\u00fc etkendir ve bakteriyemilerin yakla\u015f\u0131k %10\u2019undan sorumludur (1). Enterokoklara ba\u011fl\u0131 bakteriyemilerde en s\u0131k izole edilen t\u00fcr Enterococcus faecalis olup klinik izolatlar\u0131n %65-70\u2019ini olu\u015fturmaktad\u0131r. Enterokok bakteriyemisine ba\u011fl\u0131 mortalite oranlar\u0131 %19-%50 aras\u0131nda bildirilmektedir. \u0130leri ya\u015f, komorbidite, hastane [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":24988,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5131],"tags":[2726,5194,5454,5453],"class_list":["post-24882","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-olgu-sunumu","tag-bakteriyemi","tag-enterococcus-faecalis-2","tag-klonal-iliski","tag-pfge"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.klimikdergisi.org\/tr\/wp-json\/wp\/v2\/posts\/24882","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.klimikdergisi.org\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.klimikdergisi.org\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.klimikdergisi.org\/tr\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.klimikdergisi.org\/tr\/wp-json\/wp\/v2\/comments?post=24882"}],"version-history":[{"count":3,"href":"https:\/\/www.klimikdergisi.org\/tr\/wp-json\/wp\/v2\/posts\/24882\/revisions"}],"predecessor-version":[{"id":25853,"href":"https:\/\/www.klimikdergisi.org\/tr\/wp-json\/wp\/v2\/posts\/24882\/revisions\/25853"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.klimikdergisi.org\/tr\/wp-json\/wp\/v2\/media\/24988"}],"wp:attachment":[{"href":"https:\/\/www.klimikdergisi.org\/tr\/wp-json\/wp\/v2\/media?parent=24882"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.klimikdergisi.org\/tr\/wp-json\/wp\/v2\/categories?post=24882"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.klimikdergisi.org\/tr\/wp-json\/wp\/v2\/tags?post=24882"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}