title: Nosocomial infections after off-pump coronary artery bypass surgery: frequency, characteristics, and risk factors.
abstract: We evaluated the frequency, risk factors, and characteristics of infections in 360 patients after off-pump coronary artery bypass grafting (OPCABG). A prospective study was performed during the period June 2004-October 2005 at Henry Dunant Hospital, Athens, Greece. C-reactive protein (CRP) and procalcitonin were assayed from 222 patients preoperatively, and 1-3 days following OPCABG. Variables independently associated with infection were identified by a multivariable logistic regression model. Eighteen of 360 (5%) patients developed postoperative infections; 1.7% developed superficial wound infection, 1.4% pneumonia, 1.1% bacteremia, 0.3% mediastinitis, and 0.3% intra-aortic balloon pump related infection. The mean increase of CRP and procalcitonin levels in the first two or three days, respectively, after surgery was significantly higher (P<0.05) in patients with infection. Independent risk factors of infection (P<0.05) were history of major nervous system disorder, left ventricular heart failure preoperatively, emergent operation, transfusions of red blood cells during ICU stay, and duration of central venous catheter placement. The identification of risk factors for infection in combination with the appropriate evaluation of the increased CRP and procalcitonin values may help clinicians for the early diagnosis of infection after OPCABG.
authors: Alfa Institute of Biomedical Sciences (AIBS), Athens, Greece.
authors: Evangelos S
authors: ES
authors: Rosmarakis
authors: Sotirios N
authors: SN
authors: Prapas
authors: Konstantinos
authors: K
authors: Rellos
authors: Argyris
authors: A
authors: Michalopoulos
authors: George
authors: G
authors: Samonis
authors: Matthew E
authors: ME
authors: Falagas
mesh_terms: D016470:Bacteremia / Q000097:blood / Q000175:diagnosis / Q000209:etiology* / Q000382:microbiology / Q000401:mortality; D015415:Biomarkers / Q000097:blood; D002097:C-Reactive Protein / Q000378:metabolism; D002116:Calcitonin / Q000097:blood; D015740:Calcitonin Gene-Related Peptide; D002405:Catheterization, Central Venous / Q000009:adverse effects; D047549:Coronary Artery Bypass, Off-Pump / Q000009:adverse effects*; D003428:Cross Infection / Q000097:blood / Q000175:diagnosis / Q000209:etiology* / Q000382:microbiology / Q000401:mortality; D004632:Emergency Medical Services; D017707:Erythrocyte Transfusion / Q000009:adverse effects; D006801:Humans; D007423:Intra-Aortic Balloon Pumping / Q000009:adverse effects*; D016015:Logistic Models; D008480:Mediastinitis / Q000097:blood / Q000175:diagnosis / Q000209:etiology* / Q000382:microbiology / Q000401:mortality; D009069:Movement Disorders / Q000150:complications; D016017:Odds Ratio; D011014:Pneumonia / Q000097:blood / Q000175:diagnosis / Q000209:etiology* / Q000382:microbiology / Q000401:mortality; D011446:Prospective Studies; D011498:Protein Precursors / Q000097:blood; D018570:Risk Assessment; D012307:Risk Factors; D013530:Surgical Wound Infection / Q000097:blood / Q000175:diagnosis / Q000209:etiology* / Q000382:microbiology / Q000401:mortality; D013997:Time Factors; D016896:Treatment Outcome; D015854:Up-Regulation; D018487:Ventricular Dysfunction, Left / Q000150:complications
chemical_list: D015415:Biomarkers; C000606589:CALCA protein, human; D011498:Protein Precursors; D002116:Calcitonin; D002097:C-Reactive Protein; D015740:Calcitonin Gene-Related Peptide