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HOME > J Korean Soc Traumatol > Volume 21(2); 2008 > Article
Clinical Characteristics and Prognostic Factors of Pulmonary Contusion with Traumatic Lung Cyst
Yong Hwan Kim, Sung Youl Hyun, Jin Joo Kim, Chung Kwon Kim, Yong Su Lim, Hyuk Jun Yang, Mi Jin Lee
Journal of Trauma and Injury 2008;21(2):100-107
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1Department of Emergency Medicine, Gil Hospital, Gachon University, Incheon, Korea.
2Department of Thoracic & Cardiovascular Surgery, Gil Hospital, Gachon University, Incheon, Korea.
3Department of Emergency Medicine, Konyang University Hospital, Konyang University, Daejeon, Korea.

A traumatic lung cyst (TLC) is a rare complication and is usually detected with a pulmonary contusion. This study attempted to identify the prognostic factors and the clinical characteristics for pulmonary contusion with TLCs.
We retrospectively reviewed the medical records and chest CT findings of 71 TLC patients who visited our hospital from January 2006 to December 2007. Patients were assessed for any clinical characteristics. We evaluated significant differences between the survival and the death groups for patients with a traumatic lung cyst.
The male-to-female ratio of patients with TLCs was 54:17, and the mean age of the patients was 37.70 +/- 19.78 years with 36.6% of the patients being under 30 years fo age. The cause of blunt thoracic trauma was mainly pedestrian traffic accidents (26.8%) and falls (25.4%). Associated conditions included pulmonary contusion in 68 patients (95.7%), hemopneumothorax in 63 patients (88.7%), and rib fracture in 52 patitents (73.2%). There was no consistent relationship between the number of TLCs and the pulmonary contusion score. The overall mortality rate of TLC patients was 26.8%. Death correlated with a need for ventilatory assistance, mean arterial pressure, worst mean arterial pressure in 24 hours, initial pH and base excess, worst pH and base excess in 24 hours, refractory shock, initial GCS score, and pulmonary contusion score.
The presence of the aforementioned predictors indicate serious injury, which is the main determinant of the outcome for thoracic injuries with TLCs.

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