What does dissecting aneurysm mean and what are the symptoms

Severe aneurysms can cause limb or organ necrosis, which is very harmful to the body. After being diagnosed with a dissecting aneurysm, many patients are confused. Next, the author will introduce to you what dissecting aneurysm means? What are the symptoms?

Dissecting aneurysm is also called aortic dissection hematoma (hereinafter referred to as aortic dissection). It is not a real tumor, but protrudes outward like a tumor. The aortic intima is damaged and becomes weak. On this basis, high-speed and high-pressure blood flow tears the weak intima and media, causing the media to separate and form a gap. Arterial blood flows in, causing the gap to expand and expand, thus expanding into a "dissecting aneurysm" in the "dissection" inside the arterial wall.

The so-called dissecting aneurysm is caused by various pathological factors that lead to damage and weakness of the aortic intima and media. On this basis, high-speed and high-pressure blood flow tears the weak intima and media, causing the media to separate and form a gap. High-speed and high-pressure arterial blood flows into it, continuously impacting downward, causing further separation of the intima and outer membrane, and expanding the gap along the aortic wall, especially the distal end, which can affect the thoracic aorta and even the entire aorta, as well as many branch arteries.

If the original aortic lumen is called the true lumen, the cavity formed by the separation of the media is called the false lumen, and the intima of the aortic wall between the true and false lumens is called the true lumen "dissection".

Almost everyone who has a dissecting aneurysm will experience pain, typically sudden and severe. Patients often describe it as a tearing pain in the chest. The pain also often occurs between the shoulder blades in the back. As the dissection expands along the aorta, the pain also expands along the path of the dissection. The progression of the dissection can lead to occlusion of one or more of the branches connected to the artery. Symptoms depend on where the artery is blocked: stroke, myocardial infarction, sudden abdominal pain, tingling from nerve damage, and an inability to move one side of the body.