Objective: In spite of being an infectious disease with low incidence, infective endocarditis (IE) has a high mortality risk. In this study, we aimed to evaluate the added values of bacteriological, serological, and molecular methods for the diagnosis of infective endocarditis in Istanbul, Turkey. Material and Methods: The study has a multicentre prospective design. Fifty adult patients (age > 14 years), who were hospitalized at the Department of Cardiology of Cerrahpasa Faculty of Medicine in Istanbul University, at Haseki Cardiology Institute in Istanbul University, and at Siyami Ersek Cardiovascular Surgery Hospital with the diagnosis of IE, were included in this study. Results: We have gathered 50 IE cases for the study. The mean age of the patients was 47 years. Causative microorganisms were detected in 37 patients (74%), and undefined causative agents were found in 13 (26%) patients. Causative microorganisms were staphylococci (28%), streptococci (12%), enterococci (8%), and Brucella melitensis (4%), Pseudomonas aeruginosa (2%), Aggregatibacter actinomycetemcomitans (2%), Peptostreptococcus anaerobius (2%), Candida parapsilosis (4%), Bartonella henselae (8%) and Chlamydophila pneumoniae (4%). Conclusion: In this study, among the cases in which the etiological agents were detected, 31 (62%) were culture-positive and 19 (38%) were culture-negative. To reduce the rate of culture-negative cases, samples for blood culture should be collected carefully, and new diagnostic techniques should be used.
Keywords: Endocarditis; infection; diagnosis
Amaç:Düşük insidanslı enfeksiyöz bir hastalık olmasına rağmen, enfektif endokardit (IE) yüksek mortalite riskine sahiptir. Bu çalışmada, Türkiye'de enfektif endokardit tanısı için bakteriyolojik, serolojik ve moleküler yöntemlerin tanıdaki yerini değerlendirmeyi amaçladık. Gereç ve Yöntemler: Çok merkezli ve prospektif olarak tasarlanmış olan çalışmaya Ocak 2012 ? Aralık 2016 tarihleri arasında, İstanbul Üniversitesi Cerrahpaşa Tıp Fakültesi Kardiyoloji Anabilim Dalı, İstanbul Üniversitesi Haseki Kardiyoloji Enstitüsü ve Siyami Ersek Kalp Damar Cerrahisi Hastanesi'ne yatırılan ve kesin enfektif endokardit tanısı alan 50 (14 yaş üstü) hasta dahil edildi. Enfektif endokarditin mikrobiyolojik tanısı için bakteriyolojik, serolojik ve moleküler yöntemler kullandı. Bulgular: Çalışmaya dahil edilen 50 IE olgusunun yaş ortalaması47 idi. Otuz yedi hastada (%74) olağan mikroorganizmalar saptanrken, 13 (%26) hastada tanımlanamayan nedensel ajanlar tespit edildi. Etken olarak tanımlanan mikroorganizmalar, stafilokoklar (%28), streptokoklar (%12), enterokoklar (%8), Brucella melitensis (%4), Pseudomonas aeruginosa (%2), Aggregatibacter actinomycetemcomitans(%2), Peptostreptococcus anaerobius (%2), Candida parapsilosis (%4), Bartonella henselae (%8) and Chlamydophila pneumoniae (%4) olarak tespit edildi. Sonuç: Bu çalışmada,tespit edilen etiyolojik ajanların, 31?i (% 62) kültür-pozitif, 6?sı(% 12) kültür-negatif idi. Kültür-negatif vakaların oranını azaltmak için, kan kültürü örnekleri dikkatle toplanmalı ve yeni tanı teknikleri kullanılmalıdır.
Anahtar Kelimeler: Endokarditler; bakteri enfeksiyonları; tanı
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