Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com

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Κυριακή 4 Μαρτίου 2018

The Effect of Repeated Versus Initial Procalcitonin Measurements on Diagnosis of Infection in the Intensive Care Setting: A Prospective Observational Study

Procalcitonin (PCT) measurement has been proposed to direct antibiotic use. We examined whether repeated PCT measurements (0, 6, and/or 12 hours) versus the initial measurement only (time 0) increased the sensitivity and specificity of PCT for diagnosing infection in intensive care unit patients. Infection was identified in 67/176 (38%) patients. The sensitivity of repeated versus the initial PCT measurement (with a cutoff value 0.5 ng/mL) was 52/67 (77%; 95% confidence interval [CI], 66%–87%) vs 46/67 (69%; 95% CI, 56%–79%; P = .04) and specificity 60/109 (55%; 95% CI, 45%–65%) vs 59/109 (54%; 95% CI, 44%–64%; P = 1.0). Repeat PCT evaluations over 12 hours did not provide a clinically significant improvement in diagnostic accuracy when compared to the initial single test. Accepted for publication January 17, 2018. P. D. Levin and M. J. Cohen contributed equally to this article. Funding: This study was supported by Brahms and Siemens, which provided the procalcitonin kits at no cost. The authors declare no conflicts of interest. The information in this study was presented in part at the European Society of Intensive Care Medicine (ESICM) 27th Annual Congress, Barcelona, 2014. Reprints will not be available from the authors. Address correspondence to Shmuel Benenson, MD, MSc, Department of Clinical Microbiology and Infectious Diseases, Hadassah-Hebrew University Medical Center, PO Box 12000, Jerusalem 9112001, Israel. Address e-mail to Benenson@Hadassah.org.il. © 2018 International Anesthesia Research Society

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