title: Elevations in procalcitonin but not C-reactive protein are associated with pneumonia after cardiopulmonary resuscitation.
abstract: A possible diagnostic role of procalcitonin (PCT) as a marker for ventilator associated pneumonia (VAP) in patients with an already triggered acute phase response after successful cardiopulmonary resuscitation (CPR) was investigated. In 28 patients with return of spontaneous circulation (ROSC) after out of hospital CPR, measurements of PCT, C-reactive protein (CrP), white blood cell count (WBC) and body temperature were compared with the clinical course of the patients. In this setting, PCT was the only marker to differentiate between patients with and without VAP (median value on day 1, 6.0 vs. 0.5 ng/ml; P<0.001). Using a cut off value of 1 ng/ml during the first 7 days after ROSC PCT had a sensitivity of 100% and a specificity of 75% to indicate VAP. PCT was elevated a median of 2 days earlier than the clinical diagnosis of VAP. Elevations in PCT can, therefore, indicate bacterial complications in cardiac arrest patients with a non-infectious acute phase response.
authors: Department of Nephrology and Medical Intensive Care, Charité, Campus Virchow Klinikum, Humboldt University, Augustenburger Platz 1, 13353 Berlin, Germany.
authors: Michael
authors: M
authors: Oppert
authors: Albrecht
authors: A
authors: Reinicke
authors: Christian
authors: C
authors: Müller
authors: Detlev
authors: D
authors: Barckow
authors: Ulrich
authors: U
authors: Frei
authors: Kai-Uwe
authors: KU
authors: Eckardt
mesh_terms: D000328:Adult; D000368:Aged; D001831:Body Temperature; D002097:C-Reactive Protein / Q000378:metabolism*; D002116:Calcitonin / Q000097:blood*; D015740:Calcitonin Gene-Related Peptide; D016887:Cardiopulmonary Resuscitation / Q000009:adverse effects*; D006323:Heart Arrest / Q000628:therapy; D006801:Humans; D008875:Middle Aged; D011014:Pneumonia / Q000097:blood / Q000175:diagnosis* / Q000209:etiology; D011446:Prospective Studies; D011498:Protein Precursors / Q000097:blood*; D012121:Respiration, Artificial / Q000009:adverse effects*; D012680:Sensitivity and Specificity; D013997:Time Factors
chemical_list: C000606589:CALCA protein, human; D011498:Protein Precursors; D002116:Calcitonin; D002097:C-Reactive Protein; D015740:Calcitonin Gene-Related Peptide