• Arash Safavi, Paul Beaudry, Douglas Jamieson, and James J Murphy.
• Department of Pediatric Surgery, British Columbia Children's Hospital, Vancouver, British Columbia, Canada V6h 3V4.
• J. Pediatr. Surg. 2011 May 1;46(5):938-41.

BackgroundAlthough blunt injury to the spleen and liver can lead to pseudoaneurysm formation, current surgical guidelines do not recommend follow-up imaging. Controversy exists regarding the clinical implications of these traumatic pseudoaneurysms as well as their management.MethodsRetrospective review of children treated nonoperatively for isolated blunt liver and spleen trauma between 1991 and 2008 was undertaken. Patient demographics, grade of injury, and follow-up Doppler ultrasound results were obtained.ResultsThree hundred sixty-two children were identified. One hundred eighty-six of them had splenic injuries, and 10 (5.4%) developed pseudoaneurysms. They were associated with grade III (3/39 [8%]) and grade IV (7/41 [17%]) injuries. In 7 patients, the pseudoaneurysm thrombosed spontaneously. Angiographic embolization was required in 2 children, and one underwent emergency splenectomy for delayed hemorrhage. Of the 176 patients who had liver injuries, 3 (1.7%) developed pseudoaneurysms. All 3 were associated with grade IV injuries (3/11 [27%]). One child underwent early embolization, while 2 developed delayed hemorrhage requiring emergent treatment.ConclusionsPseudoaneurysm development after blunt abdominal trauma is associated with high-grade splenic and liver injuries. Routine screening of this group of patients before discharge from hospital may be warranted because of the potential risk of life-threatening hemorrhage.Copyright © 2011 Elsevier Inc. All rights reserved.

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