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pseudoaneurysm
Dilatation & tortuosity of a blood vessel.
Etiology:
- most common peripheral vascular complication after cardiac catheterization
- occurs when the wall of an artery is punctured & does not adequately seal after the procedure
Epidemiology:
- rare after diagnostic cardiac catheterization
- incidence increases to 2-6% after percutaneous coronary intervention due to anticoagulation required
Clinical manifestations:
- tender, pulsatile mass at the site of arterial puncture
- audible systolic bruit
Special laboratory:
- ultrasonography can confirm diagnosis
Differential diagnosis:
- aneurysm
- an aneurysm involves all 3 layers of the vessel wall; a pseudoaneurysm does not [1]
- arteriovenous fistula
- much less common than pseudoaneurysm
- like pseudoaneurysm, a pulsatile mass with a bruit
- however, bruit is continuous throughout cardiac cycle
- hematoma
- not pulsatile, no bruit
- arterial dissection
- not pulsatile, no systolic bruit
General
abnormal morphologic structure (malformation)
References
- Rothaus C
A Woman with Venous Thromboembolism and Pulmonary Artery Aneurysm.
NEJM REsident 360. April 11, 2018
https://resident360.nejm.org/content_items/a-woman-with-pulmonary-artery-aneurysm
- Webber GW, Jang J, Gustavson S, Olin JW.
Contemporary management of postcatheterization pseudoaneurysms.
Circulation. 2007 May 22;115(20):2666-74
PMID: 17515479