Confusion over rupture and dissection

Matt J Reed, Consultant in Emergency Medicine,
April 29, 2016

The authors of the above paper, whilst admirably attempting to highlight the well recognised presentation of a dissecting aorta with neurological symptoms, have unfortunately confused two very distinct diseases with two very different distinct pathologies; those of a ruptured abdominal aneurysm and a dissecting thoracic aorta.

The abdominal aorta is prone to aneurysmal dilatation, which can rupture spontaneously causing severe abdominal pain and cardiovascular collapse. The thoracic aorta is not however prone to this complication, however is prone, much less commonly, to tear. This leads to blood tracking between the layers of the aorta. This condition presents with chest pain radiating to the back and not uncommonly presents with neurological complications due to the blocking off of the carotid vessels by blood in the false lumen.

It is not clear from the report, which of the two conditions the patient had although it seems likely that this was a dissecting aorta. The authors report a case of a ruptured AAA, but quote references from dissecting aortas and confuse the two pathologies repeatedly throughout the discussion.

This mistake should have realised during the review process and an erratum should be published in order not to further confuse the prehospital readers between the two conditions.

Conflict of Interest

None declared