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What is a leaking aneurysm?

Isaac George, MD
Thoracic Surgery (Cardiothoracic Vascular)
A leaking aneurysm is a very dangerous condition, in which the aneurysm is under high pressure and is on the verge of full rupture, but is being held together while only “leaking” a small amount of blood outside the aortic wall. Rupture is usually impending and treatment is required immediately!

An aneurysm that leaks small amounts of blood in the days leading up to a rupture is called a leaking aneurysm. Sometimes this is called sentinel bleeding and the headaches that accompany this bleeding can be called sentinel headaches. These headaches can be severe and may be a warning that a rupture will soon occur. Only a few people with brain aneurysms experience leaking and the accompanying warning headaches.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.