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Revision history for this page on the wikienMediaWiki 1.13.3Wed, 04 Nov 2026 03:50:10 GMTPauletteChambless300: New page: <h1> Abdominal Aortic Aneurysm</h1> <p>An abdominal aortic aneurysm is a dilation (ballooning) of area of the aorta that is inside of the abdomen. An abdominal aortic aneurysm quite of...
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<p>New page: <h1> Abdominal Aortic Aneurysm</h1> <p>An abdominal aortic aneurysm is a dilation (ballooning) of area of the aorta that is inside of the abdomen. An abdominal aortic aneurysm quite of...</p>
<p><b>New page</b></p><div><h1> Abdominal Aortic Aneurysm</h1><br />
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<p>An abdominal aortic aneurysm is a dilation (ballooning) of area of the aorta that is inside of the abdomen. An abdominal aortic aneurysm quite often causes no warning signs unless it ruptures (bursts). A ruptured abdominal aortic aneurysm is quite often critical. An [http://aneurismaabdominal.weebly.com/ aorta abdomen] less than 50 mm broad holds a minimal risk of rupture. A procedure to repair the aneurysm will be recommended if it is larger sized than 50 mm, as above this size the chance of rupture improves. Men aged 65 and more are to be supplied a routine scan to screen for abdominal aortic aneurysm.</p><br />
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<h2>What is the aorta?</h2><p>The aorta is the most significant artery (blood vessel) in the body. It carries blood from the heart and descends through the chest and the abdomen. Many arteries come off the aorta to supply blood to all parts of the body. At about the level of the pelvis the aorta divides into two arteries, one going to each leg.</p><br />
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<h2 >What is an aneurysm and an abdominal aortic aneurysm?</h2><p>An aneurysm is where a area of an artery widens (balloons out). The wall of an aneurysm is weaker than a healthy artery wall. The tension of the blood in the artery results in the weaker section of wall to balloon.<br /><br /><div style="text-align:center><img style="width:294px;height:270px;float:left;" src="http://www.abdominalaneurysm.net/wp-content/uploads/2012/03/AAA.gif" alt="Abdominal Aortic Aneurysm"/> <img style="width:310px;height:263px;" src="http://www.abdominalaneurysm.net/wp-content/uploads/2012/03/abdominal-aortic-aneurysm.gif" alt="Diagram showing the main arteries of the body and details of an aortic aneurysm"/></div><br /><br />Aneurysms might take place in any artery, but they most commonly occur in the aorta. Most aortic aneurysms take place in the area of the aorta that passes through the abdomen. These are identified as abdominal aortic aneurysms (AAAs). Frequently they occur in the part going through the chest. These are known as thoracic aortic aneurysms.<br /><br />The standard dimension of the aorta in the abdomen is about 20 mm. An abdominal aortic aneurysm is said to be present if a section of the aorta within the abdomen is 30 mm or more in diameter.<br /><br />The rest of this booklet is mainly about AAAs.<br /><br />AAAs range in measurement. As a rule, once you strengthen an AAA, it leads progressively to obtain greater. The rate at which it obtains larger ranges from person to person. In spite of this, on average, an AAA tends to get larger by around 10% for each year.</p><br />
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<h2>What causes an abdominal aortic aneurysm?</h2><br />
<h3>In the majority of cases</h3><p>The exact reason why an aneurysm figures in the aorta in most cases is not well-defined. Most situations happen in older people. An AAA is exceptional in people less than the age of 60. So, growing old has a major factor to play.<br /><br />The wall of the aorta ordinarily has levels of easy muscle mass, and layers made from tissues named elastin and collagen. Elastin and collagen are powerful encouraging tissues. What seems to happen is that a part of the aorta loses its typical strength and elasticity in some people as they become older. Scientific tests recommends that this is due to changes in the elastin, collagen and smooth muscle tissues. There seem to be complicated biochemical procedures that trigger these transformations. Some people are more vulnerable than others to these changes.<br /><br />Your hereditary make-up performs a part, as you have a much higher chance of developing an AAA if one of your parents has, or had, one.<br /><br />Atheroma may as well play a part. Atheroma is a oily material that stores within the inside of lining of arteries. Atheroma is from time to time called furring of the arteries. Most AAAs are lined with some atheroma. Anybody can develop atheroma, but it develops more generally with raising age. Several risk aspects also improve the chance of atheroma forming. They include: cigarette smoking, high blood pressure, diabetes, raised cholesterol level, taking little exercise, and obesity. These are the same risk factors that enhance the probability of atheroma forming in the heart (coronary) arteries, which can cause angina and heart attacks.</p><br />
<h3>In a minority of cases</h3><p>Rare factors of AAAs contain injury or infection of the aorta. In addition, certain uncommon hereditary conditions can affect the artery framework. In these uncommon situations an aneurysm may develop at a rather young age.</p><br />
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<h2>How common are abdominal aortic aneurysms?</h2><p>About 6 in 100 men and about 2 in 100 women over the age of 65 have an AAA. It will become more regular with raising age. In spite of this, most people with an AAA are not aware that they have one. An AAA is uncommon in people less than the age of 60.</p><br />
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<h2>What is the concern about an abdominal aortic aneurysm?</h2><p>The main concern is that the aneurysm could rupture (burst). The wall of the aneurysm is less strong than a normal artery wall and may not be able to endure the force of blood internally. If it ruptures then severe internal bleeding occurs which is often fatal. Of course, most AAAs do not rupture - only a certain proportion (see below).</p><br />
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<h2>What are the symptoms of an abdominal aortic aneurysm?</h2><p>Often there are no symptoms. At the time of diagnosis, 7 in 10 people with an AAA will not have had any symptoms due to the aneurysm. The ballooning of the aneurysm does not cause any symptoms unless of course it gets large sufficient to put pressure on native structures. If signs do happen, they are most likely to be mild abdominal or back pains. There are many triggers of mild abdominal and back pain. As a result, the identification could be postponed until the aneurysm is large enough to be felt by a doctor when he or she examines your abdomen.<br /><br />Occasionally small blood clots form on the inside lining of an AAA. These may break up off and be carried down the aorta and obstruct a smaller artery further on. These blood clots are called emboli and can be harmful. For instance, total blockage of an artery that delivers a foot may prospect to loss of blood to part of the foot, which can cause problems in the foot and gangrene if left without treatment.<br /><br />If the aneurysm does rupture then you are likely to have sudden severe abdominal and/or back pain. This is generally soon followed by crease as the internal bleeding causes a sharp drop in blood pressure.</p><br />
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<h2>The best way in which an abdominal aortic aneurysm is diagnosed?</h2><ul><li>Sometimes a medical professional senses the stick out of an aneurysm throughout a routine checking of the abdomen. Even so, many AAAs are too small to medium sized to feel.</li><li>An X-ray of the abdomen (often carried out for other causes) will show calcium stores lining the wall of an AAA in several, but not all, scenarios.</li><li>An ultrasound diagnostic scan is the easiest way to detect an AAA. This is a painless test out. It is the identical option of capture that pregnant women have to look at the baby in the womb. The size of the aneurysm can also be measured by ultrasound. As discussed later, it is important to know the size.</li><li>A more detailed scan, such as a CT scan, is sometimes done. This may be executed if your current doctor needs to know whether the aneurysm is affecting any of the arteries that come off the aorta. For illustration, if the aneurysm involves the section of the aorta where the arteries to the kidneys branch off, specialists need to recognize this info if they prepare to operate.</li></ul><br />
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<h2>What is the danger of an abdominal aortic aneurysm rupturing?</h2><p>The chance of rupture is lower if an AAA is compact. As a rule, the risk of rupture increases with raising dimensions. This is much like a balloon - the larger you blow it up, the greater the pressure, and the higher the chance it will burst open. The size of an AAA can be measured by an ultrasound check out. The following gives general risk figures for the size (diameter) of the aneurysm:</p><ul><li>40 mm-55 mm: about a 1 in 100 chance of rupture per year.</li><li>55 mm-60 mm: about a 10 in 100 chance of rupture per year.</li><li>60 mm-69 mm: about a 15 in 100 chance of rupture per year.</li><li>70 mm-79 mm: about a 35 in 100 chance of rupture per year.</li><li>80 mm or more: about a 50 in 100 chance of rupture per year.</li></ul><p>As a rule, for any given size, the risk of rupture is improved in smokers, females, those with high blood pressure, and those with a family history of an AAA.</p><br />
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<h2>Should every person with an abdominal aortic aneurysm have surgery treatment?</h2><p>The quick answer is no. Surgery restoration of an AAA is a major treatment and provides dangers. A small number of people will die while in, or shortly after, the operations. If you have a small AAA, the threat of loss of life generated by surgery is greater than the risk of rupture. For this reason, surgery is normally not advised if you have an AAA less than 50 mm broad. However, regular ultrasound scans will generally be recommended to discover if it gets larger over time.<br /><br />Surgical procedures is normally recommended if you develop an AAA larger than 50 mm. For these larger aneurysms the chance of rupture is often higher than the risk of surgical treatments. Nevertheless, if your common condition of wellness is weak, or if you have specified other clinical problems, this could increase the probability if you have medical procedures. Therefore, in certain cases the decision to operate may be a really difficult one.<br /><br />Emergency medical procedures is important if an AAA ruptures. On average, about 8 in 10 people who have a ruptured aortic aneurysm will die due to the rapid serious bleeding. Nevertheless, emergency surgery is lifesaving in some conditions.</p><br />
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<h2>What surgical procedures are performed?</h2><p>There are 2 types of surgical procedure to fix an AAA.<br /><br />The classic surgery is to cut out the bad piece of aorta and change it using an artificial element of artery (a graft). This is a major surgery and, as mentioned, provides some risk. Some people die while in this operation. Nevertheless, it is effective in a lot of cases and the aneurysm is fully fixed. The long-term prospect is fine. The graft normally works well for the rest of your life.<br /><br />A modern procedure lets the aorta to be repaired by a technique called endovascular repair. This has become a popular choice in latest years. In this method a tube is passed up from inside one of the leg arteries into the section of the aneurysm. This tube is then passed throughout the widened aneurysm and repaired to the good aorta wall using metal clips. The edge to this style of repair is that there is no abdominal surgery. This tactic is thus safer than the common surgery, and you require to spend less time in clinic. A negative aspect is that certain individuals have to undergo a further procedure at a later stage to perfect the early process.<br /><br />Operative methods continue to develop and improve. Your surgeon will suggest about the positives and negatives of surgical procedures, the various forms of procedure, and the best option for you.</p><br />
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<h2>Other solutions may be necessary</h2><p>If you have an AAA, you are most likely to have a significant amount of atheroma that lines the artery. As a result, you are at probability of having substantial atheroma structure in other arteries, such as the coronary (heart) arteries and brain arteries. Therefore, you are likely to be at increased risk of developing heart disease (angina, heart attack, etc) and stroke.<br /><br />In fact, most people who develop an aortic AAA do not die of the aneurysm but die from additional vascular conditions, such as a heart harm or stroke.<br /><br />Therefore, you should think of doing what you can to minimize the danger of these conditions by other suggests. For illustration:</p><ul><li>Eat a healthy diet which comes with keeping a low salt intake.</li><li>If you are able, exercise often.</li><li>Lose excess weight if you are overweight.</li><li>Do not smoke.</li><li>If you drink alcohol, do so in moderation.</li><li>If you have high blood pressure, diabetes, or a high cholesterol level, they should be well controlled on treatment.</li><li>You may be prescribed a statin drug to lower your cholesterol level and low-dose aspirin to help prevent blood clots from forming.</li></ul><p>See separate booklet called <i>'Preventing Cardiovascular Diseases'</i> for more details.</p><br />
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<h2>Screening for abdominal aortic aneurysm</h2><p>Research analyses suggest that a routine ultrasound check out is worthwhile for all men aged 65. This is mainly because most people with an AAA do not have symptoms. Following a routine scan, surgical procedure can be provided to men found to have an aneurysm over 50 mm wide. Follow-up scans can be provided to monitor those with smaller aneurysms.<br /><br />In early 2008, the authorities introduced that over the subsequent five years ultrasound screening would be rolled out to enable all men in England aged 65 and over to be screened. Screening is likely to begin in Scotland in 2011. Wales and Northern Ireland have yet to announce their plans. Screening for AAA is offered only to men, as the condition is much more widespread in men than in women. One research shared in 2009 determined that if all men in their 60s and 70s were screened in England then this could save nearly 2,000 lives a year. Nevertheless, there are some people who have concerns about screening for AAA; for example, see the paper by Johnson cited under 'References', below.</p></div>Thu, 29 Mar 2012 08:17:45 GMTPauletteChambless300http://www.aalf.org/wiki/index.php?title=Talk:PauletteChambless300