Key result
CPR-associated pericardial laceration in acute type A dissection can mask cardiac tamponade by causing massive hemothorax.
Why the study?
Cardiac tamponade is a major cause of pulseless electrical activity arrest in acute type A aortic dissection, and CPR-associated pleuropericardial decompression can mask tamponade on post-resuscitation CT.
Case Report (n=2)
No
CPR-associated pericardial rupture in acute type A aortic dissection can decompress cardiac tamponade into the pleural space, creating a critical post-resuscitation CT imaging pitfall of massive hemothorax with minimal pericardial effusion.
Answers are grounded in this paper and cite their sources.
Clinicians should consider CPR-induced pericardial laceration masking tamponade as left hemothorax in type A dissection; leaves open need for adjusted imaging protocols.
What is already known: Cardiac tamponade is a major cause of pulseless electrical activity arrest in acute type A aortic dissection.What is new: CPR-associated pericardial rupture may decompress tamponade into the pleural cavity, producing massive hemothorax with paradoxically minimal pericardial effusion on post-resuscitation CT-a critical imaging pitfall in ATAAD.
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Tominaga et al. (2026) conducted a case report in Acute Type A Aortic Dissection with Cardiac Tamponade and Pulseless Electrical Activity Arrest (n=2). Manual cardiopulmonary resuscitation and emergency aortic surgery was evaluated on In-hospital survival and intraoperative/CT findings of pleuropericardial decompression.
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