• Mathias J Holmberg, Lars W Andersen, Amanda Graver, Sharon B Wright, David Yassa, Michael D Howell, Michael W Donnino, and Michael N Cocchi.
• Department of Emergency Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02215; Research Center for Emergency Medicine, Aarhus University Hospital, 8000 Aarhus, Denmark. Electronic address: mathiasjohanholmberg@gmail.com.
• J Crit Care. 2015 Dec 1; 30 (6): 1299-302.

PurposeThe aim of this study was to investigate whether clinicians can estimate the length of time a central venous catheter (CVC) will remain in place and to identify variables that may predict CVC duration.Materials And MethodsWe conducted a prospective study of patients admitted to the intensive care unit over a 1-year period. Clinicians estimated the anticipated CVC duration at time of insertion. We collected demographics, medical history, type of intensive care unit, anatomical site of CVC placement, vital signs, laboratory values, Sequential Organ Failure Assessment score, mechanical ventilation, and use of vasopressors. Pearson correlation coefficient was used to assess the correlation between estimated and actual CVC time. We performed multivariable logistic regression to identify predictors of long duration (>5 days).ResultsWe enrolled 200 patients; median age was 65 years (quartiles 52, 75); 91 (46%) were female; and mortality was 24%. Correlation between estimated and actual CVC time was low (r=0.26; r2=0.07; P<.001). Mechanical ventilation (odds ratio, 2.20; 95% confidence interval, 1.22-3.97; P=.009) at time of insertion and a medical history of cancer (odds ratio, 0.35; 95% confidence interval, 0.16-0.75; P=.007) were significantly associated with long duration.ConclusionOur results suggest a low correlation between clinician prediction and actual CVC duration. We did not find any strong predictors of long CVC duration identifiable at the time of insertion.Copyright © 2015 Elsevier Inc. All rights reserved.

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