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KMID : 0385920120230030366
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Journal of the Korean Society of Emergency Medicine
2012 Volume.23 No. 3 p.366 ~ p.372
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Decision Factors in Performance of Intravenous Contrast-enhanced Computed Tomography for Patients with Acute Flank Pain in an Emergency Department
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Choi In-Chul
Cho Suk-Jin
Kang Tae-Kyung
Kim Hye-Jin
Oh Sung-Chan
Choi Seung-Woon
Ryu Seok-Yong
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Abstract
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Purpose: The aim of this study is to determine decision factors for performance of intravenous (IV) contrast-enhanced computed tomography (CT) for patients with acute flank pain in an emergency department.
Methods: We evaluated patients who presented with acute flank pain and underwent IV contrast-enhanced CT from January 2010 to June 2011. The IV contrast-enhanced CT useful group was defined as patients whose CT findings
were equal to the final diagnosis. But urolithiasis was an exception, because enhanced CT is not useful in making the final diagnosis. We conducted a comparison of clinical characteristics and laboratory findings between the IV contrast-
enhanced CT useful group and the not useful group. We then performed logistic regression analysis for analysis of independent predictors.
Results: A total of 166 patients were enrolled in this study. The IV contrast-enhanced CT useful group included 41
(24.7%) patients. Results of logistic regression analysis demonstrated that right upper quadrant tenderness (p=0.023), right lower quadrant tenderness (p=0.037), and negative hematuria (p=0.007) were independent predictors for the IV contrast-enhanced CT useful group.
Conclusion: In patients with acute flank pain, performance of IV contrast-enhanced CT is useful for detection of alternative findings in the presence of right upper quadrant tenderness, right lower quadrant tenderness, and negative
hematuria.
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KEYWORD
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Flank pain, Computed tomography, Contrast media
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