DR. MARK J. RUSSO, MD, MS
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What is an aortic aneurysm?

An aneurysm is a bulging, weakened area in the wall of a blood vessel resulting in an abnormal widening or ballooning greater than 50 percent of the normal diameter (width). An aneurysm may be located in many areas of the body, such as the blood vessels of the brain, the aorta (the largest artery in the body), the intestines, the kidneys, the spleen, and the vessels in the legs.

What is an aortic aneurysm?

The most common location of an aneurysm is the aorta.  They may occur in any part of the aorta:
  • Root/Proximal/Ascending/Arch Aneurysm
  • Descending Thoracic Aortic Aneurysm
  • Abdominal Aortic Aneurysm

The aorta extends upward from the top of the left ventricle of the heart in the chest area (ascending thoracic aorta), then curves like a candy cane (aortic arch) downward through the chest area (descending thoracic aorta) into the abdomen (abdominal aorta). The aorta delivers oxygenated blood pumped from the heart to the rest of the body.

An aneurysm can be characterized by its location, shape, and cause. A thoracic aortic aneurysm is located in the chest area. The thoracic aorta can be divided into segments: ascending aorta, aortic arch, and descending aorta, as described above. An aneurysm may be located in one of these areas and/or may be continuous throughout the aorta. An aneurysm called a thoracoabdominal aneurysm involves a thoracic aortic aneurysm extending down to the abdominal aorta.  An abdominal aortic aneurysm is located in the abdomen area. 

The shape of an aneurysm is described as being fusiform or saccular, which helps to identify a true aneurysm. The more common fusiform-shaped aneurysm bulges or balloons out on all sides of the blood vessel. A saccular-shaped aneurysm bulges or balloons out only on one side.

Because an aneurysm may continue to increase in size, along with progressive weakening of the artery wall, surgical intervention may be needed. Preventing rupture of an aneurysm is one of the goals of therapy. The larger an aneurysm becomes, the greater the risk of rupture (bursting). With rupture, life-threatening hemorrhage (uncontrolled bleeding) may result. 
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Ascending Aortic Aneurysm
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Descending Thoracic Aortic Aneurysm
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Abdominal Aortic Aneurysm

What are the causes of aortic aneurysms?

Thoracic aortic aneurysms may be caused by different disease processes, especially in respect to their location. Examples of different locations of thoracic aortic aneurysms and their causes may include, but are not limited to, the following:

Ascending Thoracic Aneurysm
  • cystic medial degeneration (necrosis): breaking down of the tissue of the aortic wall. This is the most common cause of this type of thoracic aortic aneurysm.
  • genetic disorders which affect the connective tissue, such as Marfan's syndrome and Ehlers-Danlos syndrome
  • family history of thoracic aortic aneurysm with no incidence of Marfan's syndrome
  • atherosclerosis: hardening of the arteries caused by a build-up of plaque in the inner lining of an artery. This is a rare cause of ascending thoracic aortic aneurysm.
  • infection, syphilis (rare causes of thoracic aortic aneurysm)

Aortic Arch Thoracic Aneurysm
  • Takayasu's arteritis: a type of vasculitis that causes inflammation of the arteries
  • atherosclerosis
  • continuation of an ascending and/or descending aortic aneurysm

Descending Thoracic and Abdominal  Aortic Aneurysm - Atherosclerosis is most often associated with descending aneurysms and is thought to play an important role in aneurysmal disease. The following risk factors associated with atherosclerosis such as:
  • age (greater than 55)
  • male gender
  • family history (first-degree relatives such as father or brother)
  • genetic factors
  • hyperlipidemia (elevated fats in the blood)
  • hypertension (high blood pressure)
  • smoking
  • diabetes

What are the symptoms of an aneurysm?

Aneurysms may be asymptomatic (no symptoms) or symptomatic (with symptoms). Symptoms associated with aneurysms depend upon the location of the aneurysm in the body.

Symptoms that may occur with different types of aneurysms may include, but are not limited to, the following:

  • Thoracic Aortic Aneurysm (TAA): pain in the jaw, neck, chest and/or back; wheezing, coughing or shortness of breath; hoarseness or difficulty swallowing.
  • Abdominal Aortic Aneurysm (AAA): constant pain in abdomen, chest, back or groin area; a pulsatile mass in the abdomen.

The symptoms of an aneurysm may resemble other medical conditions or problems. Always consult your physician for more information.

How are aneurysms diagnosed?

Selection of a type of diagnostic examination is related to the location of the aneurysm. In addition to a complete medical history and physical examination, diagnostic procedures for an aneurysm may include any, or a combination, of the following:
  • computed tomography scan (also called a CT or CAT scan): a diagnostic imaging procedure that uses a combination of X-rays and computer technology to produce cross-sectional images (often called slices). A CT scan shows detailed images of any part of the body, including the bones, muscles, fat and organs.

  • magnetic resonance imaging (MRI): a diagnostic procedure that uses a combination of large magnets, radiofrequencies and a computer to produce detailed images of organs and structures within the body.

  • echocardiogram (also called echo): a procedure that evaluates the structure and function of the heart by using sound waves recorded on an electronic sensor that produce a moving picture of the heart and heart valves.

  • arteriogram (angiogram): A dye (contrast) will be injected through a thin flexible tube placed in an artery. This dye will make the blood vessels visible on the X-ray.

  • ultrasound: uses high-frequency sound waves and a computer to create images of blood vessels, tissues and organs. An ultrasound is used to view internal organs as they function, and to assess blood flow through various vessels.

Treatment for aneurysms:

Treatment options for an aneurysm may include one or more of the following:
  • controlling or modifying risk factors: steps such as quitting smoking, controlling blood sugar if diabetic, losing weight if overweight or obese and controlling dietary fat intake may help to control the progression of the aneurysm
  • medication: to control factors such as hyperlipidemia (elevated levels of fats in the blood) and/or high blood pressure
  • surgery: the type of surgery performed will depend on the location and type of the aneurysm

Specific treatment will be determined by your physician based on:
  • age, overall health and medical history
  • extent of the disease
  • signs and symptoms
  • tolerance of specific medications, procedures or therapies
  • expectations for the course of the disease
  • preference

Location of the aneurysm also impacts treatment options:
  • Root/Proximal/Ascending/Arch Aneurysm
  • Descending Thoracic Aortic Aneurysm
  • Abdominal Aortic Aneurysm

How do I prevent an aortic dissection and/or further growth of my aneurysm?

Here are a few tips:

  • Control your blood pressure. If you have high blood pressure, get a home blood pressure measuring device to help you monitor and keep your blood pressure well controlled.
  • Don't smoke. Or, if you do, take steps to stop.
  • Maintain an ideal weight. Follow a low-salt diet and exercise regularly.
  • Watch your cholesterol. Keep your cholesterol levels within a range that is recommended by your doctor.
  • Continue low-impact exercise (eg brisk walking).  Avoid high-impact exercise that significantly increases your blood pressure (eg weight training)
  • Wear a seat belt. This reduces the risk of traumatic injury to your chest area.
  • Keep your doctor well-informed. If you have a family history of aortic dissection, let your doctor know.
For more info on lifestyle recommendation visit, IRAD online 
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Mark J Russo, MD, MS
 Chief, Cardiac Surgery

Director, Structural Heart Disease
Associate Professor of Surgery
​
​Rutgers-Robert Wood Johnson Medical School
Robert Wood Johnson
University  Hospital 
​125 Paterson St
​New Brunswick, NJ  ​08901

Office: 732-235-7231
Fax:   
732-235-8963​
Expert in Complex Aortic  Disease, Valve Surgery, Transcatheter Aortic Valve Repalcement (TAVR) , and Mitraclip
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(c) Mark Russo 2020
Dr. Russo performs the full range of cardiac surgery including  Coronary Artery Surgery - Coronary Artery Bypass Grafts; Bypass Surgery;  CABG;  Coronary Artery Surgery; Reoperation; Off Pump Bypass Surgery; Off Pump Heart Surgery; Valve Surgery - Aortic Valve Repair; Aortic Valve Replacement; Mitral Valve Repair; Mitral Valve Replacement ; Reoperatve Heart Valve Surgery;;  Endovascular and Hybrid Aortic Surgery;  Transcatheter Valve Surgery - TAVR, TAVI, ViV, MVIV, valve-in-valve; Minimally Invasive Cardiac Surgery - Minimally Invasive Mitral Valve Repair; Mitral Valve Replacement; Minimally Invasive Aortic Valve Surgery​; Aortic Surgery - Aorta Surgery; Aortic Dissection; Complex Aorta Surgery; Valve Sparing Roots, Heart Surgery for Marfan Syndrome; Aortic Root Aneurysms; Ascending Aortic Aneurysms; Aortic Arch Aneurysms; Descending Thoracic Aortic Aneurysms; Thoracoabdominal Aortic Aneurysms; Abdominal Aortic Aneurysms; Aortic Dissections, including Type A Dissections and Type B Dissections; Native Aortic and Prosthetic Graft Infections, including Endocarditis; Congenital Aortic Disease, such as Marfan's syndrome and Loeys Dietz; Transplant Surgery - Heart and Lung.  He was trained by Dr. Mehmet Oz and Craig Smith and Eric Rose.  Read about Matt Millen undergoing Heart Transplant