Aortic dissection is a serious and life-threatening disease of the blood vessels in the heart where the wall of the aorta splits, creating two separate parts, a short and a long one, where blood can flow independently of each other. This condition can lead to aortic stenosis, which requires immediate medical intervention. Understanding the nature, risk factors, and treatment options of aortic dissection is essential to prevent serious complications and maintain heart health.

Kas ir aortas disekcija?

Aortic dissection is a condition in which the wall of the aorta (the main blood vessel of the heart) splits, creating two separate layers, the apex (intima) and the inner layer (media). This division can create a new pathway for blood to flow between the walls, damaging the structure and functionality of the aorta. Aortic dissection can lead to aortic dissection (rupture), which can be life-threatening.

Veidi

Aortic dissection can be classified in several ways based on its location and extent:

Stanford classification

• Tip A:involves dissection involving the aortic arch or the upper part (proximal part) and this form often requires immediate surgical intervention because of the higher risk of complications.

DeBakey classification

• Tip I:the dissection begins in the upper part of the aorta and extends to its lower part. This type is widespread and carries a high risk of complications.
• Tip II:dissection is limited to the upper part of the aorta (aortic arch) and is often treated surgically.
• Tip III:the dissection is limited to the lower part of the aorta and can be treated conservatively if there are no complications or endovascularly if necessary.

These types of classification help doctors determine the most appropriate treatment strategy depending on the location of the dissection and the level of risk. 

Aortas disekcijas simptomi

Aortic dissection can be a life-threatening condition that requires immediate medical attention. The symptoms can be very intense and often present urgently.

Most common symptoms

• Rapid, intense chest or back pain:

  • The pain may increase and radiate to the back or side.
  • Often described as a feeling of tension, burning or stinging.

• Feeling of bloating in the stomach:abdominal distension may indicate abdominal aortic dissection.
• Shortness of breath:breathing difficulties may occur if the dissection presses on nearby organs or blood vessels.
• Decreased blood flow:the pain may worsen with strenuous physical activity that increases blood pressure and heart rate.
• Low blood pressure and palpitations:blood pressure may drop, causing dizziness and unsteadiness.

More severe symptoms (Aortic rupture)

• Rapid, intense pain:the pain can be extremely strong and radiate throughout the body.
• Chills and dizziness:intense pain can cause anxiety and dizziness.
• Low blood pressure:A drop in blood pressure can lead to shock, which is life-threatening.
• Swelling of veins in the neck:high blood pressure can contribute to swelling of the veins, especially in the neck area.

When to seek medical help

If you have any of these symptoms, especially severe chest or abdominal pain, seek medical attention immediately. Aortic rupture is a life-threatening condition that requires immediate surgery or medical intervention.

Aortas disekcijas riska faktori

Various factors can increase the risk of aortic dissection. Understanding these risk factors helps prevent the condition and facilitates early diagnosis.

Main risk factors

• Hypertension (high blood pressure):persistently elevated blood pressure damages the aortic wall and contributes to the development of dissection.
• Aortic aneurysms:previously diagnosed aortic aneurysm increases the risk of dissection because the damaged wall is less durable and flexible.
• Aortic valve diseases:damage or inflammation of the aortic valves may increase the risk of aortic dissection.
• Hereditary (genetic) conditions:Marfan syndrome, Ehlers-Danlos syndrome, genetic disorders that affect the flexibility and strength of blood vessels, significantly increase the risk of dissection.
• Health conditions:

  • Chronic kidney diseases:Renal failure may increase the risk of dissection.
  • Congenital heart diseases:Certain cardiovascular diseases increase the risk of aortic dissection.
• Smoking:smoking damages blood vessels and contributes to the development of atherosclerosis, which increases the likelihood of dissection.
• Family history:family members with a history of aortic dissection or aneurysm are at increased risk of developing this condition.

Traumas:severe trauma, such as car accidents or surgery, can cause dissection.

Additional risk factors

• Age and gender:aortic dissection more often affects older adults and is more common in men than women.
• Heart diseases:people with other types of heart disease, such as coronary heart disease, are at greater risk of dissection.

Aortas disekcijas diagnostikas metodes

Accurate diagnosis is essential to confirm the presence of aortic dissection, assess its extent and select an appropriate treatment plan. The diagnostic process includes taking a medical history, physical examination, and various laboratory and imaging tests.

Medical history and physical examination

Medical history:

• The doctor asks questions about the nature, duration and possible triggers of the symptoms.
• Information about family history is obtained, especially for heart disease or aortic dissections.
• Lifestyle factors such as smoking, alcohol consumption, and physical activity levels that may affect the risk of dissection are assessed.

Physical examination:

• Cardiac auscultation:the doctor may detect heart valve murmurs or other noises that may indicate the presence of a dissection.
• Blood pressure measurement:checks the blood pressure in different parts of the body to identify potential differences in blood pressure that may be an indicator of dissection.
• Abdominal examination:the doctor assesses the volume of the abdomen to determine the distribution of fat and possible signs of bloating, which could indicate aortic damage in the abdominal area.

Diagnostic tests

• Electrocardiogram (ECG):changes in the electrical activity of the heart, the ECG may reveal ischemia or damage to the heart muscle that may be associated with dissection.
• Echocardiography:transesophageal echocardiography (TEE), this more detailed echocardiography helps determine the extent of the dissection and assess damage to the aortic valves.
• Computed Tomography (CT):CT with contrast agents, provides detailed images of the aorta and allows determination of the extent of dissection. This method is very effective for rapid diagnosis of dissection.
• Magnetic resonance imaging (MRI):provides high-quality, radiation-free images used to assess aortic health and extent of dissection.
• Angiography:an invasive procedure with a contrast agent, a contrast agent is injected into the aorta to visualise its structure. This test is usually used in cases where surgical intervention is required.
• Blood tests:

  • D-dimers:elevated D-dimer levels may indicate blood clots associated with dissection.
  • Leukocyte count:an elevated white blood cell count may indicate infection or inflammation.

How to treat aortic dissection?

The goal of treatment is to prevent the dissection from spreading, reduce damage to the aortic structure, and reduce the risk of complications. Treatment options depend on the type of dissection, its location, the patient's general health, and the potential risk of complications.

Surgical treatment

Aneurysm removal or treatment:

• Depending on the type and location of the dissection,surgeons may remove the damaged part of the aorta or perform treatment procedures to strengthen the aortic wall.
• Stanford Type A dissection:usually requires immediate surgical intervention to prevent the spread of dissection and prevent damage to cardiac organs.

• Endovascular aneurysm repair (TEVAR): a minimally invasive procedure in which a stent-graft is inserted through the blood vessels to strengthen the aortic wall and prevent the dissection from spreading.

Supportive therapy

• Restriction of rest and physical activity: to reduce the workload on the heart and support recovery.
• Pain relief: the use of painkillers according to the doctor's instructions.
• Modulation of the immune system: if the dissection is associated with an autoimmune disease, immune modulating therapy is required.

Lifestyle adjustments after aortic dissection treatment

After aortic dissection treatment, it is important to make some lifestyle changes to improve your chances of recovery and reduce the risk of future complications.

Healthy diet

• Balanced diet:include plenty of fruits, vegetables, whole grains, lean meats, and sources of healthy fats (such as fish, nuts) in your diet.
• Reduce your salt intake:limit salt intake to lower blood pressure.
• Avoid trans fats and saturated fats:reduce saturated fat intake to improve cholesterol levels and reduce the risk of atherosclerosis.
• Increase your fiber intake:fibre helps control blood glucose levels and lowers triglycerides.

Regular physical activities

• Aerobic activities: do regular aerobic activities such as walking, cycling or swimming to improve circulation and reduce the risk of heart disease.
• Strength training: do muscle strengthening exercises to improve muscle strength and reduce body fat percentage.
• Izvairieties no smagas fiziskas slodzes: it is especially important to avoid heavy physical exertion, which can put pressure on the aortic wall.

Weight management

• Reduce body weight:if you are obese, reduce your body weight by 5-10% to reduce the risk of cardiovascular disease.
• Increase body movement:increase physical activity to improve body composition and metabolic function.

Smoking cessation and limiting alcohol consumption

• Smoking: avoid smoking or use smoking cessation programs to improve cardiovascular health.
• Alcohol consumption: limit alcohol consumption to lower blood pressure and triglyceride levels.

Hipertensijas kontrole

• Control your blood pressure: measure your blood pressure regularly and follow your doctor's instructions to ensure its optimal level.

Stress control

• Relaxation techniques: use meditation, yoga, breathing exercises, and other relaxation techniques to reduce stress levels and improve overall health.
• Emotional support:talking to family, friends or psychologists can help manage emotional stress and improve quality of life.

Complications of aortic dissection

Without proper treatment, aortic dissection can lead to serious complications that can affect heart function and overall health.

Aortic rupture

• Definition:aortic rupture is a condition in which the wall of the aorta tears, causing fluid to build up and cause heart failure.
• Symptoms:

  • Intense chest or back pain.
  • Rapid heartbeat and low blood pressure.
  • Dizziness and shortness of breath.
• Treatment:urgent surgery or medical intervention to prevent cardiac tamponade and stabilise the patient's condition.

Aortic heart failure

• Definition:aortic dissection can reduce the heart's ability to pump blood effectively, causing heart failure.
• Symptoms:

  • Shortness of breath, especially during physical exertion.
  • Fatigue and weakness.
  • Swelling in the legs or abdomen.

Aortic valve damage

• Definition:aortic dissection can cause damage to the aortic valves, which results in impaired blood flow.
• Symptoms:

  • Chest pain.
  • Shortness of breath.
  • Irregular heartbeat.
• Treatment:if necessary, surgical treatment or aortic valve replacement is performed to restore normal blood flow and prevent complications.

Blood clot formation

• Definition:aortic dissection can promote the formation of blood clots, which tend to spread through the blood vessels, causing various types of emboli.
• Risk:

  • Stroke.
  • Pulmonary embolism.
  • Peripheral arterial embolism.
• Prevention:as directed by your doctor, taking anticoagulants can help prevent blood clots and reduce the risk of embolism.

Cardiac tamponade

• Definition:cardiac tamponade is a condition in which the accumulation of fluid in the pericardial cavity compresses the heart, disrupting its function and obstructing blood flow.
• Symptoms:

  • Low blood pressure, weakness and dizziness.
  • Rapid heartbeat and shortness of breath.
  • Swelling of veins in the neck area.
• Treatment:urgent pericardiocentesis to drain the accumulated fluid and reduce the workload on the heart, thereby relieving symptoms and improving circulation.

Prevention

Although it is not always possible to prevent aortic dissection, there are ways to reduce the risk and promote heart health.

Control of hypertension

• Control your blood pressure:measure your blood pressure regularly and follow your doctor's instructions to ensure its optimal level.

Healthy lifestyle

• Healthy diet:include plenty of fruits, vegetables, whole grains, lean meats and sources of healthy fats in your diet.
• Regular physical activities:Do regular aerobics and strength training.
• Weight management:limit body weight and fat distribution, especially around the abdomen.
• Quitting smoking and limiting alcohol:avoid smoking and limit alcohol consumption.

Regular medical check-ups

• Early detection and treatment of diseases:follow your doctor's instructions and regularly check your heart health.
• Determination of family history:if there have been cases of aortic dissection or aneurysm in the family, inform the doctor and perform the necessary tests.

Conclusion

Aortic dissection is a life-threatening injury to a blood vessel in the heart that can lead to serious complications if not treated early and properly. Understanding the symptoms, risk factors, and treatment options for dissection is essential to preventing complications and maintaining heart health.

Regular medical checkups are important, especially if you have risk factors such as hypertension, age, male sex, smoking, or a family history of aortic dissection. Early diagnosis and treatment can significantly reduce the risk of complications and improve quality of life.