Τρίτη 19 Φεβρουαρίου 2019

Pericardial injury with cardiac tamponade and bleeding from the pericardium confirmed using contrast-enhanced computed tomography: a case report

Abstract

Background

Simple pericardial injuries are asymptomatic in many cases and usually do not cause bleeding that leads to cardiac tamponade. In this study, however, we report a case involving a patient with pericardial injury, in whom extravasation in the pericardium was identified using contrast-enhanced computed tomography (CT).

Case presentation

A 67-year-old man fell from a 3-m-high ladder and was injured and transported to our hospital. No pericardial effusion was observed on focused assessment with sonography for trauma (FAST) or plain CT on arrival, but pericardial effusion was detected on follow-up observation. Thereafter, his circulatory dynamics began to deteriorate. We then performed FAST to identify the bleeding source, but it was difficult to visualize on echocardiography. Thus, contrast-enhanced CT (CECT) was performed and extravasation was confirmed in the pericardium. We believed that the accumulation of pericardial effusion caused cardiac tamponade; hence, we performed emergent thoracotomy. When we released the cardiac tamponade, his circulatory dynamics improved, and we could stabilize the patient's condition by ligating the bleeding vessel from the pericardium.

Conclusion

If visualization is difficult on FAST, like in this case, CECT is useful for identifying the cause of pericardial effusion if circulatory dynamics can be determined. We were able to confirm that extravasation occurred from the pericardium using CECT; hence, we could confirm that pericardial injury caused bleeding and may cause cardiac tamponade. Thus, if cardiac tamponade is suspected, not only damage to the heart itself, but also damage caused by pericardial vascular injury should be considered. Further, if circulatory dynamics are stable, CECT should be performed.



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