Pseudoaneurysm

Jump to: navigation, search

WikiDoc Resources for Pseudoaneurysm

Articles

Most recent articles on Pseudoaneurysm

Most cited articles on Pseudoaneurysm

Review articles on Pseudoaneurysm

Articles on Pseudoaneurysm in N Eng J Med, Lancet, BMJ

Media

Powerpoint slides on Pseudoaneurysm

Images of Pseudoaneurysm

Photos of Pseudoaneurysm

Podcasts & MP3s on Pseudoaneurysm

Videos on Pseudoaneurysm

Evidence Based Medicine

Cochrane Collaboration on Pseudoaneurysm

Bandolier on Pseudoaneurysm

TRIP on Pseudoaneurysm

Clinical Trials

Ongoing Trials on Pseudoaneurysm at Clinical Trials.gov

Trial results on Pseudoaneurysm

Clinical Trials on Pseudoaneurysm at Google

Guidelines / Policies / Govt

US National Guidelines Clearinghouse on Pseudoaneurysm

NICE Guidance on Pseudoaneurysm

NHS PRODIGY Guidance

FDA on Pseudoaneurysm

CDC on Pseudoaneurysm

Books

Books on Pseudoaneurysm

News

Pseudoaneurysm in the news

Be alerted to news on Pseudoaneurysm

News trends on Pseudoaneurysm

Commentary

Blogs on Pseudoaneurysm

Definitions

Definitions of Pseudoaneurysm

Patient Resources / Community

Patient resources on Pseudoaneurysm

Discussion groups on Pseudoaneurysm

Patient Handouts on Pseudoaneurysm

Directions to Hospitals Treating Pseudoaneurysm

Risk calculators and risk factors for Pseudoaneurysm

Healthcare Provider Resources

Symptoms of Pseudoaneurysm

Causes & Risk Factors for Pseudoaneurysm

Diagnostic studies for Pseudoaneurysm

Treatment of Pseudoaneurysm

Continuing Medical Education (CME)

CME Programs on Pseudoaneurysm

International

Pseudoaneurysm en Espanol

Pseudoaneurysm en Francais

Business

Pseudoaneurysm in the Marketplace

Patents on Pseudoaneurysm

Experimental / Informatics

List of terms related to Pseudoaneurysm

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

A pseudoaneurysm, also known as a false aneurysm, is an outpouching of a blood vessel involving a defect in the two innermost tissue layers (tunica intima and media). The outermost layer (adventia) may be intact, or alternatively, all three layers may be damaged, with bleeding contained by a blood clot or surrounding structures. True aneurysms in contrast, are vascular outpouchings containing all three tissue layers.

Epidemiology and Demographics

Given the increase in invasive cardiac procedures, damage to all three layers is the more common source of pseudoaneurysm in modern medical settings. Damage to the two innermost layers is more commonly seen following trauma to a vessel. Femoral pseudoaneurysms may complicate up to 8% of vascular interventional procedures.

Pseudoaneuryms of Structures other than Blood Vessels: Left Ventricular Pseudoaneurysms

A pseudoaneurysm may also occur in a chamber of the heart following myocardial damage due to ischemia or trauma. An pseudoaneurysm of the left ventricle is a potentially lethal complication from a heart attack. After a heart attack, the left ventricular wall of the heart, may rupture.

Although aneurysms and left ventricular aneurysms may involve any wall segment, aneurysms in the posterolateral wall are frequently due to pseudoaneurysms. In contrast, the most common location for a true left ventricular aneurysm involves the apex of the heart.

Diagnosis

Patient #1: Gastroduodenal artery pseudoaneurysm

Ultrasound

  • Yin-yang sign: Swirling blood flow pattern within a cystic structure.
  • To-and-fro flow: to represents blood entering the pseudoaneurysm in systole and fro represents blood exiting the pseudoaneurysm during diastole.

Treatment

Small pseudoaneurysms can spontaneously clot, while others need definitive treatment. Surgery is considered the gold-standard treatment, although is not without risk in patients with severe cardiovascular disease. Less invasive treatment options, such as Duplex ultrasound-guided compression and percutaneous thrombin injection are available, however, evidence of their efficacy is somewhat limited.

Prevention

External compression, either manual or device usually do not prevent the pseudoaneurysm from forming once the tunica intima has been damaged.

References



Linked-in.jpg