What is Pseudoaneurysm?

A pseudoaneurysm, also known as a false aneurysm, is a hematoma that forms as the result of a leaking hole in an artery. Note that the hematoma forms outside the arterial wall, so it is contained by the surrounding tissues. Also it must continue to communicate with the artery to be considered a pseudoaneurysm. This must be distinguished from a true aneurysm which is a localised dilatation of an artery including all the layers of the wall. A pseudoaneurysm is also different from an arterial dissection, which is a separation of the layers of the arterial wall, and may be associated with later aneurysm formation. Distinctively, in a pseudoaneurysm, the hole in the arterial wall is generally the consequence of a vascular injury. By opposition, true aneurysms and dissections are usually the consequence of an arterial wall congenital or acquired deficiency, for example by means of atherosclerosis.

Femoral pseudoaneurysms may complicate up to 8% of vascular interventional procedures. Small pseudoaneurysms can spontaneously clot, while others need definitive treatment.

A pseudoaneurysm may also occur in a chamber of the heart following myocardial damage due to ischemia or trauma. A pseudoaneurysm of the left ventricle is a potentially lethal complication from a myocardial infarction.

Questions and answers on "Pseudoaneurysm"

I have a pseudo aneurysm and have been having high and low heart rate issues. In the last few days, my heart rate has ranged from 41-50. My doctor...

doctor1 MD

Hi welcome to hcm
You definitely need an emergency care otherwise you may have sudden dropping of heart rate and collapse.Do not neglect.thankyou

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My husband feels cold lost of the time. He had congestive heart failure in April. After he was stable, he had a cardiac cath and a stent was placed...

doctor1 MD


Thank you for asking on HCM!

Regarding your concern, I would like to explain that cold body feeling and congestive heart failure (CHF) may...

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What is meant by the word suedo aneurysm?

doctor1 MD

Brief Answer:
Caused by injury(surgery, trauma, ruptured aneurys

Detailed Answer:
Hi and thank you so much for this query.


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