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World J Emerg Med. 2016;7(3):178-82. doi: 10.5847/wjem.j.1920-8642.2016.03.003.

Point-of-care ultrasound versus radiology department pelvic ultrasound on emergency department length of stay.

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Department of Emergency Medicine, University of California Irvine, Irvine, California 92697, USA.
Department of Emergency Medicine, University of California Los Angeles, Los Angeles, California 90095, USA.



The study aimed to compare the time to overall length of stay (LOS) for patients who underwent point-of-care ultrasound (POCUS) versus radiology department ultrasound (RDUS).


This was a prospective study on a convenience sample of patients who required pelvic ultrasound imaging as part of their emergency department (ED) assessment.


We enrolled a total of 194 patients who were on average 32 years-old. Ninety-eight (51%) patients were pregnant (<20 weeks). Time to completion of RDUS was 66 minutes longer than POCUS (95%CI 60-73, P<0.01). Patients randomized to the RDUS arm experienced a 120 minute longer ED length of stay (LOS) (95%CI 66-173, P<0.01).


In patients who require pelvic ultrasound as part of their diagnostic evaluation, POCUS resulted in a significant decrease in time to ultrasound and ED LOS.


Intrauterine pregnancy; Length of stay; Pelvic ultrasound; Point-of-care ultrasound

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