aortic aneurysm pathology ppt

According to their hypothesis degenerative stiffening of the aneurysm-prone regions of the aortic wall increases axial stress, generated by cyclic tethering of adjacent, more compliant wall segments. Abdominal aortic aneurysm (AAA), abnormal focal dilation of the abdominal aorta, is a life-threatening condition that requires monitoring or treatment depending upon the size of the aneurysm and/or symptomatology. definition : localized or diffuse aortic dilation that exceeds 50% of the normal aortic diameter elasticity and tensile strength from the medial layer contains elastin, collagen, smooth muscle cells, and ground substance genetic factors cystic medial degeneration leads to the final common pathway of progressive aortic expansion and IMH converts to acute aortic dissection in 3% to 14% of patients with . Dissecting aneurysm of the aorta (Aortic dissection) PATHOGENESIS 1. Aortic aneurysms occur when a weak part of the aorta expands like a balloon, forming a blood-filled sac.Mostly, aneurysms cause no symptoms, but they can be life-threatening if they become too large and rupture, or burst. AAA may be detected incidentally or at the time of rupture. Clinical Presentation and Diagnosis Hemodynamic State *Sudden death *Hypovolemic shock *Cardiogenic shock (acute AR 35-60%) Symptomes and Signs * Sudden severe pain and feeling of impending death (Often interscapular pain,precordial and radiate into neck or arm) * Painless * Ischemic sypmtomes of occlusion of a major vessels. aneurysm, widening of an artery that develops from a weakness or destruction of the medial layer of the blood vessel. Diseases of Veins & Lymphatics. pathogenesis the 2 most important disorders that predispose to aortic aneurysms are atherosclerosis (a greater factor in abdominal aortic aneurysms), hypertension (most common condition associated with aneurysms of the ascending aorta) other conditions that weaken vessel walls and lead to aneurysms include trauma, vasculitis, congenital Mac and Keynote compatible. options for patients with thoracic aortic pathology involving the aortic arch. This free Aortic Aneurysm Medical PPT is royalty free and easy to use. evidence review A: risk factors for predicting presence of an abdominal aortic aneurysm. Aortic Aneurysm The aorta is the largest blood vessel present in human body. A true aneurysm involves all three vessel layers; the tunica intima, media and adventitia. Compromise in the structural and functional . Abstract. Anterior rupture. The broad term aortic aneurysm is usually reserved for pathology discussion. Diagnosis 1. Similar to acute aortic dissection, it is classified as Stanford type A (ascending aorta) or B (exclusive involvement of the descending aorta). According to American heart association an aneurysm occurs when part of an artery wall weakness, allowing it to widen abnormally or balloon out. Ventricular aneurysms can be true or false aneurysms. Types of Aneurysms True vs. False (pseudoaneurysm) True: involves all 3 layers of the arterial wall False: presence of blood flow outside of normal layers of arterial wall. This helps you give your presentation on Abdominal Aortic Aneurysm-Radiology in a conference, a school lecture, a business proposal, in a webinar and business and professional representations. This helps you give your presentation on Aortic aneurysms-anaesthesia in a conference, a school lecture, a business proposal, in a webinar and business and professional representations. The prognosis or outcome depends on the size of an aortic aneurysm and its location. Check out this medical presentation on Aorta, which is titled "Acute Aortic Syndrome", to know about acute aortic syndrome, a variety of acute painful and potentially life-threatening aortic pathologies requiring immediate medical attention. The aorta is the largest and strongest artery in the body. Both smoking and B.P or blood pressure have a severe effect on the development of an aortic aneurysm. 27. Pinpoint hemorrhagesPinpoint hemorrhages (epicardium of heart)(epicardium of heart) Often due to lowOften due to low platelet count.platelet count . CARDIOVASCULAR PATHOLOGY. PowerPoint is the world's most popular presentation software which can let you create professional Aortic aneurysms-anaesthesia powerpoint presentation easily and in no time. Features of this free Aortic Aneurysm Medical PowerPoint template: Instant download. The feared complication is rupture which is a surgical emergency due to its high mortality. AneurysmAneurysm An aneurysm is a distention of an artery brought by a weakening/ destruction of the arterial wall. Thoracic aortic aneurysms can be divided pathologically according to their relationship to the aortic wall 1: true aneurysm atherosclerotic aneurysms (most common) inflammatory/ aortitis rheumatoid arthritis (RA) ankylosing spondylitis Takayasu arteritis giant cell arteritis (GCA) syphilis connective tissue disease cystic medial necrosis The aortic wall is composed histologically of three layers: a thin inner tunica intima lined by the . Some of the features of the model are, however, disparate from human AAAs, including the predilection to the suprarenal aorta and the involvement of dissection as an important feature of the pathology [ 15 ]. Only recently, since the advent of transesophageal echocardiographic imaging, did its presence and associated pathologies become more profound and more prominent for the intensivist. Most do not survive long enough to get to the . Abdominal aortic aneurysm (AAA) is a degenerative vascular pathology resulting in significant morbidity and mortality in older adults due to rupture and sudden death. An aneurysm is a localized sac or dilation formed at a weak point in the wall of the aorta Because of the high pressure in the arterial system, aneurysms can enlarge, producing . First let's look at aortic aneurysms which is an outpouching that occurs due to weakening of the aortic wall. Finding an aortic aneurysm before it ruptures offers your best chance of recovery. Men > women Increased age PMH: Hypertension Hypercholesterolaemia Atherosclerosis . Chronic periaortitis is an inflammatory condition which typically involves the infrarenal portion of the abdominal aorta. Aortic aneurysm classified by etiology, location, and shape most common dissecion predisposing atherosclerosis, aortitis, cystic medial necrosis, syphilitc aortitis, trauma, postoperative false aneurysm, connective tissue disorders, and congenital aortic anomalies De Bakey and Stanford classification Shape fusiform and saccular 3 Goal Most patients with IMH have Stanford type B (50% to 85%). Aortic Aneurysm. 1. SlidesFinder is a very popular and powerful online presentation sharing website that allows you to upload your PowerPoint presentations online for free. evidence review B: imaging techniques to diagnose abdominal aortic aneurysms SHAPES OF ANEURYSMS Saccular Fusiform Cylindroid Berry 5. Massive hemorrhage . The inferior and anterior myocardial infarctions occur with almost equal frequency. in addition to coronary and peripheral artery diseases, aortic diseases contribute to the wide spectrum of arterial diseases: aortic aneurysms, acute aortic syndromes (aas) including aortic dissection (ad), intramural haematoma (imh), penetrating atherosclerotic ulcer (pau) and traumatic aortic injury (tai), pseudoaneurysm, aortic rupture, Fig. Severe pain. A total of 1373 patients with available surgical tissue pathology from open thoracic aortic aneurysm repairs between 2007 and 2017 were identified in the UPHS pathology database. A dissection occurs when there is a tear in the tunica intima, allowing blood to literally "dissect" into the vessel wall. Aortic Aneurysm. Citation, DOI & article data. Dizziness or lightheadedness. Despite 150 000 new cases and nearly 15 000 deaths annually, the only approved treatment of AAA is surgical or endovascular intervention when the risk for aortic rupture is increased. 3. Involves cardiac surgery, vascular surgery & endovascular surgery, cardiovascular . Symptoms include chest or abdominal pain, cough, shortness of breath. Although thoracic and abdominal aortic aneurysms share some common characteristics, including the gross anatomic appearance, alterations in extracellular matrix, and loss of smooth muscle cells, they are distinct diseases. It is the blood vessel into which the heart pumps all the freshly oxygenated blood it has received from the lungs. An arterial aneurysm is defined as a permanent localized dilatation of the vessel at least 150% compared to a relative . Abdominal Aortic Aneurysms Aurelia Thibonnier-Calero PGY-2 Vascular Surgery. An abdominal aortic aneurysm (AAA) is a permanent, localized dilatation of the abdominal aorta (beginning at the level of the diaphragm and extending to its bifurcation into the left . ATHEROSCLEROTIC ANEURYSM Atherosclerosis is the most common cause of aortic aneurysm Most frequently occur in males, >50 years of age Most occur in abdominal aorta, below the renal arteries Complications include thrombosis, embolism, and rupture 6. Aneurysms are described in terms of Aortic Aneurysm An aortic aneurysm is a pathologic dilatation of the aorta. Normal Anatomy of Thoracic and Abdominal Aorta The ascending aorta extends from the aortic valve to the origin of the innominate artery,with its proximal portion referred to as the "aortic root.". Symptoms- Tummy pain Irregular heartbeat Lower back pain Sweaty skin Fainting Causes- Although the exact cause of Abdominal Aortic Aneurysm (AAA) is . Number of Views: 845. Abdominal Aortic Aneurysms PowerPoint Presentation PowerPoint is the world's most popular presentation software which can let you create professional Abdominal Aortic Aneurysms powerpoint presentation easily and in no time. As classically defined and simply put, pathology involving the ascending aorta is treated with emergency open surgery whereas more distal disease sparing the ascending aorta is treated with medical therapy and endovascular stenting. These include aortopathies associated with a BAV, Marfan syndrome, and other connective tissue disorders such as Loeys-Dietz syndrome. The diagnosis of aortic aneurysms and aortic dissection has been revolutionized by developments in cross-sectional imaging. Possible viral etiology . Rapid heart rate. Sudden, severe chest pain, abdominal pain or back pain. Given the sexual disparities in aneurysm pathology demonstrated in this and multiple other publications, . It's a great marketing tool that allows you to share your presentations with marketers, presenters, educationists and others anywhere around the world, and lightning fast. Because of the constant pressure of the circulating blood within the artery, the weakened part of the arterial wall becomes enlarged, leading ultimately to serious and even fatal complications from the compression of surrounding structures or from rupture and hemorrhage . Wall of false aneurysm is compose of the compressed . In contrast, a false ventricular aneurysm is formed by the rupture of the ventricular wall, which is contained by the surrounding pericardium. Complications Up to 30% of cases of AAS have complications at the time of presentation 8. Rupture - serious complication related to untreated aneurysm. Introduction. However, destruction of elastin in the aortic wall is a key event that shifts the load produced by blood pressure on to collagen. Abdominal aortic aneurysms are much more common than thoracic aortic aneurysms and combined they account for >25 000 deaths in the United States annually. inflammatory abdominal aortic aneurysm (IAAA) Slide 2-. Approximately 10% to 30% of patients with acute aortic syndrome have IMH. The aorta is a conduit from the left ventricle that delivers pulsatile blood distally in either a compliant or stiffened vessel to organs and tissue beds. An abnormal bulging of the aorta, the largest artery in the body. Abdominal aortic aneurysm (AAA) is a focal dilatation of the abdominal aorta to more than 1.5 times its normal diameter. Treatment includes open surgery, minimally invasive procedures, medications, lifestyle changes. Additionally, it further depends on the overall health of the patient, the age, the gender, the value of B.P or blood pressure, and smoking habits. Traditionally investigated by contrast angiography, the last two decades have seen considerable developments in the diagnosis of aortic disease by echocardiography, CT, and MRI. View Notes - Aortic Aneurysm.ppt from MBBS 101 at Kathmandu University. Abdominal Aortic Aneurysm symptoms and causes - About- Abdominal Aortic Aneurysm (AAA) is a bulge or swelling in the Aorta, the largest blood vessel that supplies blood to the body which runs from the heart down through the chest and tummy. Cardiovascular PathologyCardiovascular Pathology. Normal Heart. As an aortic aneurysm grows, you might notice symptoms including: Difficulty breathing or shortness of breath. These patients were then matched with 109 comparators with noninflammatory aortic aneurysms . -Atheromal deposit . Types of AneurysmsTypes of Aneurysms There are two main types of aneurysms: 1. Presentation Transcript. Pathology of Abdominal Aortic Aneurysms. Abstract. In recent years . Premium quality free medical PowerPoint templates. evidence review A: risk factors for predicting presence of an abdominal aortic aneurysm. Hypertension in about 90% cases of dissecting aneurysm. An abdominal aortic aneurysm (AAA) is a bulge or swelling in the aorta, the main blood vessel that runs from the heart down through the chest and tummy. In 63 resected thoracic aortic aneurysms, the commonest histological finding (45 cases, 71.4%) was cystic medionecrosis. Posterior rupture. Description: Myocardial Infarction. Frequently observed histological features include cystic medial necrosis, mucoid infiltration, and cyst formation in the setting of elastin necrosis and vascular smooth muscle apoptosis. -Inflammatory aneurysm may be stuck to adjacent retroperitoneal structures, inflammation and fibrosis extends to the adventitial layer and to surrounding tissue in aortic bed. Aortic aneurysm is a focal or diffuse dilatation of the aorta involving all three layers of the aortic wall. Absolutely free for medical and healthcare professionals. Aortic Aneurysm An aortic aneurysm is a pathologic dilatation of the aorta. ANATOMY The aorta is the ultimate conduit, carrying, in an average lifetime, almost 200 million litres of blood to the body. Abdominal Ao aneurysm Pathology: -Most begin a few cm bellow origin of Renal arteries -Occasionally extend above renal arteries: Thoraco-abd.aneurysm occurs -Often contain organising thrombus. Pathology of aortic aneurysms varies in different segments of the aorta and in different predisposing diseases. Aortic incompetence and coronary stenosis are due to the mesaortitis of the proximal portion of the aorta; the various changes in the syphilitic heart (ischemia, fibrosis, hypertrophy, dilatation, cardiac degeneration, angina pectoris) are end results of aortitis which increases the heart's workload and diminishes its blood supply. The aorta arises from the base of the heart, courses upward and to the right toward the . 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