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World J Surg. 2015 Jan;39(1):172-8. doi: 10.1007/s00268-014-2781-y.

Utility of extended FAST in blunt chest trauma: is it the time to be used in the ATLS algorithm?

Author information

1
Trauma Surgery Section, Hamad General Hospital (HGH), P.O Box 3050, Doha, Qatar, traumaresearch@hmc.org.qa.

Abstract

INTRODUCTION:

The clinical significance of extended Focused Assessment with Sonography for Trauma (EFAST) for diagnosis of pneumothorax is not well defined.

OBJECTIVES:

To investigate the utility of EFAST in blunt chest trauma (BCT) patients.

STUDY DESIGN:

A single blinded, prospective study.

PARTICIPANTS:

All patients admitted with BCT (2011-2013).

SETTINGS:

Level 1 trauma center in Qatar.

PROCEDURES AND OUTCOME MEASURES:

Patients were screened by EFAST and results were compared to the clinical examination (CE) and chest X-ray (CXR). Chest-computed tomography (CT) scoring system was used to confirm and measure the pneumothorax. Diagnostic accuracy of diagnostic modalities of pneumothorax was measured using sensitivity, specificity, predictive values (PVs), and likelihood ratio.

RESULTS:

A total of 305 BCT patients were included with median age of 34 (18-75). Chest CT was positive for pneumothorax in 75 (24.6 %) cases; of which 11 % had bilateral pneumothorax. Chest CT confirmed the diagnosis of pneumothorax in 43, 41, and 11 % of those who were initially diagnosed by EFAST, CE, and CXR, respectively. EFAST was positive in 42 hemithoraces and its sensitivity (43 %) was higher in comparison to CXR (11 %). Positive and negative PVs of EFAST were 76 and 92 %, respectively. The frequency of missed cases by CXR was higher in comparison to EFAST and CE. The lowest median score of missed pneumothorax was observed by EFAST.

CONCLUSION:

EFAST can be used as an efficient triaging tool in BCT patients to rule out pneumothorax. Based on our analysis, we would recommend EFAST as an adjunct in ATLS algorithm.

PMID:
25205343
DOI:
10.1007/s00268-014-2781-y
[Indexed for MEDLINE]
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