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The American surgeon · Nov 2009
Comparative StudyCritical evaluation of pulmonary contusion in the early post-traumatic period: risk of assisted ventilation.
- Miller C Hamrick, Ryan D Duhn, and M Gage Ochsner.
- Department of Surgery, Memorial Health University Medical Center, Savannah, Georgia, USA. mchamrick@gmail.com
- Am Surg. 2009 Nov 1;75(11):1054-8.
AbstractThis study attempts to accurately quantify pulmonary contusion and predict those patients most likely to require assisted ventilation early in their hospital course. Patients admitted to a Level I trauma center were evaluated for pulmonary contusion by helical CT scan. Scans were reviewed by a single radiologist who attempted to accurately quantify contusion as a percentage of total lung volume. These patients were then followed for 48 hours in an attempt to use CT measurements of contusion to predict those that would require assisted ventilation early in their hospital course. After using numerous exclusion criteria, 152 patients were included in the study. Of these, 31 patients (20%) required assisted ventilation within 48 hours of hospital admission. Twenty per cent pulmonary contusion proved to be a highly predictive variable leading to need for assisted ventilation. Of patients sustaining <20 per cent contusion, only 7 of 92 (8%) required assisted ventilation versus 24 of 60 (40%) sustaining >20 per cent contusion. Pulmonary contusion is a significant injury especially when contusion volume exceeds 20 per cent of total lung volume. With accurate measurement of contusion, we can identify those patients at high risk of requiring assisted ventilation early in their hospital course.
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