• Am J Emerg Med · Oct 2018

    Observational Study

    Use of bedside ultrasound as a predictive tool for acute chest syndrome in sickle cell patients: A prospective exploratory study.

    • Joseph S Colla, Pavitra Kotini-Shah, Savannah Soppet, Yi-Fan Chen, Robert Molokie, Puja Prajapati, and Heather M Prendergast.
    • Department of Emergency Medicine, University of Illinois at Chicago, College of Medicine, 808 South Wood Street, MC 724, Chicago, IL 60612, United States of America; Department of Emergency Medicine, University of Illinois Medical Center, 1740 West Taylor Street, Chicago, IL 60612, United States of America.
    • Am J Emerg Med. 2018 Oct 1; 36 (10): 1855-1861.

    BackgroundAcute chest syndrome (ACS) is the leading cause of death for patients with sickle cell disease (SCD). Early recognition of ACS improves prognosis.ObjectiveInvestigate the use of bedside lung ultrasound (BLU) in identification of early pulmonary findings associated with ACS in SCD patients.MethodsProspective, observational study of a convenience sample of SCD patients presenting to the Emergency Department (ED) for a pain crisis. BLU interpretations were made by an emergency physician blinded to the diagnosis of ACS, and were validated by a second reviewer. The electronic medical record was reviewed at discharge and at 30 days.ResultsTwenty SCD patients were enrolled. Median age was 31 years, median hemoglobin was 7.7 g/dL. Six patients developed ACS. Five patients in the ACS group had lung consolidations on BLU (83%) compared to 3 patients in the non-ACS group (21%), p = 0.0181, (OR = 12.05, 95% CI 1.24 to 116.73). The ACS group was also more likely to have a pleural effusion and B-lines on BLU than the non-ACS group, p = 0.0175; 0.1657, respectively. In the ACS group, peripheral and frank consolidations on BLU was 83% and 50% sensitive, 79% and 100% specific for ACS, respectively; whereas an infiltrate on initial chest X-ray (CXR) was only 17% sensitive. BLU identified lung abnormalities sooner than CXR (median 3.6 vs. 31.8 h).ConclusionsPulmonary abnormalities on BLU of an adult SCD patient presenting to the ED for a painful crisis appear before CXR, and highly suggest ACS. BLU is a promising predictive tool for ACS.Copyright © 2018 Elsevier Inc. All rights reserved.

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