All About Thoracic Aortic Aneurysm
What is a Thoracic Aortic Aneurysm?
A thoracic aortic aneurysm occurs when the body's largest blood vessel, the aorta, dangerously widens. Normally, the aorta is 2.5 cm thick, but when it reaches 5 cm, surgical intervention is necessary.
If it widens too much, the aorta may experience severe insufficiency, or worse, rupture under the pressure of blood on weakened walls, leading to fatal hemorrhage.
Having a thoracic aortic aneurysm represents an imminent life threat, as this abnormal widening can burst at any time and can lead to clot formation triggering a stroke or heart attack.
What are the causes of Thoracic Aortic Aneurysm?
Thoracic aortic aneurysm can be caused by several risk factors. In some cases, it can be hereditary, if other family members have also been affected. Smoking, obesity, and chest trauma can also be contributing factors. In addition, diseases such as atherosclerosis, infections like syphilis and tuberculosis, and other degenerative conditions of the aorta can lead to a thoracic aortic aneurysm.
This condition mostly affects men, smokers, and those predisposed to high blood pressure.
What are the symptoms of Thoracic Aortic Aneurysm?
It is often difficult to detect a thoracic aortic aneurysm before it manifests with specific symptoms. These vary depending on the severity and size of the aneurysm and can present in various ways, such as:
- Discomfort affecting the neck, back of the neck, jaw, chest, and the area behind the sternum;
- Complications such as breathing or swallowing difficulties, as well as coughing and hoarseness, often caused by pressure on surrounding structures.
- Formation of clots from peripheral blood branches.
How can a Thoracic Aortic Aneurysm be detected?
When a doctor identifies symptoms of a thoracic aortic aneurysm, they may recommend several tests such as X-rays, MRI, CT scan, ultrasound, and angiography to better diagnose the condition.
How can a Thoracic Aortic Aneurysm be treated?
What are the goals of Aortic Aneurysm treatment?
The presence of an aortic aneurysm necessitates therapy with the goals of:
- Preventing further expansion of the widening
- Avoiding problems such as rupture of the widening, aortic dissection, and the formation of emboli or thrombi.
There is a wide range of therapeutic options to achieve the above-mentioned goals. The choice of one option over another greatly depends on the severity of the aortic aneurysm in question. If it is small, doctors will opt for regular monitoring of the widening and may treat any underlying health problems with medication and/or by adopting a healthy lifestyle. These problems include smoking, hypertension, or high cholesterol, which could worsen the situation. On the other hand, if the aortic aneurysm is large, surgical intervention becomes unavoidable.
Regular Monitoring
To maximize early detection of any changes, such as widening, of an aortic aneurysm, regular follow-up of an aortic aneurysm including examinations such as echocardiography, CT or MRI thoraco-abdominal scan, and abdominal ultrasound is essential.
Pharmacological Treatment
Certain medications are particularly effective in treating an aortic aneurysm, namely beta-blockers, angiotensin II receptor antagonists, and statins. Beta-blockers and angiotensin II receptor antagonists are recommended to regulate blood pressure, while statins are effective in controlling high cholesterol.
Lifestyle
People suffering from an aortic aneurysm must adopt a lifestyle in which:
- Smoking is eliminated;
- They exercise regularly;
- They improve their health by adopting a balanced diet, avoiding foods high in fat, sugar, and salt, among others.
Surgery
To treat a large aortic aneurysm, there are two surgical methods: the traditional approach and the endovascular approach.
With a conventional method, the doctor performs a form of vascular grafting. In fact, they perform the resection of the aortic tract with widening and the replacement of this tract with a synthetic graft.
With the endovascular approach, on the contrary, the operating doctor puts in place a metallic structure for the internal reinforcement of the widened aortic walls. In other words, they insert a kind of metallic prosthesis corresponding to the widened aortic segment, which acts as a reinforcing element for the weakened walls.
In the treatment of aortic aneurysms, it is important to consider the two surgical techniques described above. The second is less invasive than the first; however, it is regrettable that it is not suitable for all patients suffering from this condition.
Why operate only severe cases?
Surgery to treat an aortic aneurysm is a very complex operation, with a high risk of death due to potential complications.
To ensure patient safety, doctors only opt for surgery when the risk of death caused by the rupture of an aortic aneurysm is higher than the risk of post-operative complications. In other words, they only decide to operate if the aortic aneurysm represents a greater threat than the surgical procedure itself.
What is the treatment in case of aortic aneurysm rupture?
When an aortic aneurysm ruptures, surgery must be performed quickly to repair the aorta and stop internal bleeding.
Is there a link between thoracic aortic aneurysm and abdominal aortic aneurysm?
When it comes to the causes of abdominal aortic aneurysm, they can be similar because they are actually two distinct pathways of the aorta affected by the same pathology. Thus, it is possible that people affected by the first form are also affected by the second.
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