The purpose of this study was to determine the accuracy of ultrasound exami
nation of pediatric trauma patients by emergency physicians. Pediatric (age
less than 18 years) trauma patients presenting to the emergency department
of a revel I trauma center were prospectively examined with bedside ultras
ound during the secondary survey of their trauma resuscitation, Examination
s were performed by emergency medicine residents and attending physicians w
ho had completed an 8-hour course on trauma ultrasonography, Trauma physici
ans providing care to the patient were blinded to the results of the examin
ation. In 47 children (median age 9 years) computed tomography of the abdom
en/pelvis or laparotomy were also performed and served as gold standards to
verify the presence or absence of free fluid in the abdomen, Sensitivity s
pecificity, and accuracy of the ultrasound examination for the detection of
free fluid in the abdominal cavity was 75% (95% confidence interval [CI] 3
6% to 95%), 97% (95% CI 81% to 100%), and 92% (95% CI 77% to 98%), Positive
and negative predictive values were 90% (95% CI 46% to 100%) and 92% (95%
CI 74% to 99%), respectively. ultrasound examinations took an average of 7
minutes and 36 seconds, although this did not take into consideration delay
s created by interruptions for other diagnostic tests or procedures. An eme
rgency physician and radiologist agreed on blinded interpretations of 83% o
f the examinations (kappa = 0.56). Bedside ultrasonography is a reliable an
d rapid method for screening traumatized children for the presence or absen
ce of free fluid in the peritoneum even in the hands of novice sonographers
. (Am J Emerg Med 2000;18:244-249. Copyright (C) 2000 by W.B, Saunders Comp
any).