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Title: Chest radiographic evolution in fat embolism syndrome
Authors: Nisa Muangman
Eric J. Stern
Eileen M. Bulger
Gregory J. Jurkovich
Fred A. Mann
Mahidol University
Harborview Medical Center
Faculty of Medicine, Thammasat University
Keywords: Medicine
Issue Date: 1-Dec-2005
Citation: Journal of the Medical Association of Thailand. Vol.88, No.12 (2005), 1854-1860
Abstract: Objective: To characterize the temporal chest radiographic findings of fat embolism syndrome. Material and Method: Twenty-nine patients with clinically diagnosed fat embolism syndrome between 1988-1999 were retrospectively identified from the Trauma Registry of Haborview Medical Center, University of Washington. In twenty-two patients, complete medical records and serial chest radiographs were available. All images were reviewed by a dedicated thoracic radiologist. Results: Two of 22 patients had normal radiographs throughout hospitalization, while 20/22 developed abnormal chest radiographs. The radiographic findings were consistent with non-specific diffuse pulmonary edema in all abnormal cases. The time to appearance of evident radiographic lung injury was < 24 hours of initial trauma in 10/20 (50%), between 24-48 hours in 4/20 (20%), between 48-72 hours in 5/20 (25%), and 1 patient (1/20, 5%) developed an abnormal chest radiograph after 72 hours. Ten of 20 patients (50%) with abnormal radiographs had complete resolution of the edema pattern within 1 week of development of opacities, 3/20 (15%) cases showed complete radiographic resolution between 1- 2 weeks, 2/20(10%) cases showed complete radiographic resolution between 2-3 weeks, 1/20 (5%) showed complete radiographic resolution between 3-4 weeks, and 4/20 (20%) died without resolution of the radiographic finding. Conclusion: The chest radiographic appearance of fat embolism syndrome is non-specific. Normal radiographs can also be seen. Most patients presenting with a normal initial radiograph develop radiographic evident abnormalities within 72 hours of injury and most cases showed radiographic resolution within 2 weeks of hospitalization. Although chest imaging play a little role in the clinical management of fat embolism syndrome, understanding of temporal presentation and evolution of the otherwise non-specific pulmonary opacities may help to avoid unnecessary evaluation in selected patients.
ISSN: 01252208
Appears in Collections:Scopus 2001-2005

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