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Journal of The Korean Society of Emergency Medicine 1994;5(2): 193-201. |
| A CLINICAL STUDY FOR THE EARLY DIAGNOSIS OF AORTIC DISSECTION PATIENTS VISIT THROUGH EMERGENCY CENTER |
| Jae Hwang Park, In Sool Yoo |
| Department of Emergency Medicine, WonKwang University, School of Medicine, Iri, Korea |
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Published online: December 31, 1994. |
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| ABSTRACT |
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Dissecting aneurysm of the aorta is one of the most lethal of all intrathoracic diseases. but it is in difficulty for prediction of prognosis and has many sudden death cases. A chief complaint is the chest pain. Therefore, it has a necessity of differential diagnosis with other diseases on acute development of chest pain.
So, the authors are to find the usefulness for screening test of dissecting aneurysm through the comparison of mediastinal width by the measurement of mediastinal widening on chest X-ray films between 200 adults of normal person and aneurysmal patients.
The study materials are 34 adult patients of thoracic aorta aneurysm visit through the WonKwang university hospital emergency department during Jan. 1985 to Oct. 1994.
The definition of mediastinal width is most widened distance at aortic knob and MT (MediastinoThoracic) ratio is a ratio of mediastinal width to chest width.
In this study guidelines for abnormal mediastinal widening include a mediastinal width greater than 8.8cm in the erect posteroanterior film, greater than 10.3cm in the supine
anterioposterior chest film at the aortic knob or a MT ratio greater than 0.32 in the erect P-A, greater than 0.37 in the supine A ― P film on 95% confidence interval.
The result indicate that chest X-ray has the valuable usefulness for screening test of dissecting anerysm.
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| Key words:
Dissecting aneurysm. Mediastinal width. MT ratio. |
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