{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T18:07:37Z","timestamp":1792087657393,"version":"4.4.0"},"reference-count":25,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2006,4,25]],"date-time":"2006-04-25T00:00:00Z","timestamp":1145923200000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["BMC Infect Dis"],"published-print":{"date-parts":[[2006,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:sec>\n            <jats:title>Background<\/jats:title>\n            <jats:p>Post-sternotomy mediastinitis (PSM) is a devastating surgical complication affecting 1\u20133% of patients that undergo cardiac surgery. <jats:italic>Staphylococcus aureus<\/jats:italic> is one of the most commonly encountered bacterial pathogen cultured from mediastinal samples obtained from patients with PSM. A component of the membrane of the gram positive bacteria, lipoteichoic acid, stimulates the blood monocytes and macrophages to secrete cytokines, radicals and nitrogen species leading to oxido-inflammatory damage. This seems to be responsible for the high mortality rate in PSM. For the evaluation of the pathogenesis of infection or for the investigation of alternative treatment models in infection, no standard model of mediastinitis seems to be available. In this study, we evaluated four mediastinitis models in rats.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods<\/jats:title>\n            <jats:p>The rats were divided into four groups to form different infection models. Group A: A suspension of 1 \u00d7 10<jats:sup>7<\/jats:sup> colony-forming units <jats:italic>Staphylococcus aureus<\/jats:italic> in 0,5 mL was inoculated from the right second intercostal space into the mediastinum. Group B: A hole was created in the right second intercostal space and a piece of stainless-steel implant with a length of 0.5 cm was inserted into the mediastinum and a suspension of 1 \u00d7 10<jats:sup>7<\/jats:sup> cfu bacteria in 0,5 mL was administered via the tail vein. Group C: Precolonized stainless-steel implant was inserted into the mediastinum. Group D: Precolonized stainless-steel implant was inserted into the mediastinum and the bacteria suspension was also injected into the mediastinum. On the 10<jats:sup>th<\/jats:sup> day, rats were sacrificed and the extension of infection in the mediastenae was evaluated by quantitative cultures. Myeloperoxidase activity (MPO) and malondialdehyde (MDA) levels were determined in the sera to evaluate the neutrophil activation and assess the inflammatory oxidation.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>The degree of infection in group C and D were 83.3% and 100% respectively (<jats:italic>P<\/jats:italic> &lt; 0.001). MDA levels were significantly higher in these two groups than the others (<jats:italic>P<\/jats:italic> &lt; 0.001).<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusion<\/jats:title>\n            <jats:p>Infected implants and high bacterial concentration administration were the two important components that played a significant role in the outcome of a successful infection in mediastinum in a rat model.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1186\/1471-2334-6-76","type":"journal-article","created":{"date-parts":[[2006,4,26]],"date-time":"2006-04-26T08:00:26Z","timestamp":1146038426000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Comparison and evaluation of experimental mediastinitis models: precolonized foreign body implants and bacterial suspension inoculation seems promising"],"prefix":"10.1186","volume":"6","author":[{"given":"Gulden","family":"Ersoz","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Barlas Naim","family":"Aytacoglu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nehir","family":"Sucu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lulufer","family":"Tamer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ismet","family":"Bayindir","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Necmi","family":"Kose","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ali","family":"Kaya","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Murat","family":"Dikmengil","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2006,4,25]]},"reference":[{"key":"340_CR1","doi-asserted-by":"publisher","first-page":"73","DOI":"10.1161\/01.CIR.0000079105.65762.DB","volume":"108","author":"VG Fowler Jr","year":"2003","unstructured":"Fowler VG, Kaye KS, Simel DL, Cabell CH, McClachlan D, Smith PK, Levin S, Sexton DJ, Reller LB, Corey GR, Oddone EZ: Staphylococcus aureus bacteremia after median sternotomy: clinical utility of blood culture results in the identification of postoperative mediastinitis. 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