Abdominal aortic aneurysm involves a widening, stretching, or ballooning of the aorta. There are several causes of abdominal aortic aneurysm, ...
MedlinePLUS
... Aortic Aneurysm Reference Summary Introduction Ballooning of the aorta, also known as an "abdominal aortic aneurysm," can ... the benefits and risks of this surgery. Anatomy Aorta Common Illiac Arteries The heart pumps blood into ...
... the wall of an artery -- occur in the aorta. The aorta is the main artery that carries blood from ... aortic aneurysms occur in the part of the aorta running through the chest. Abdominal aortic aneurysms occur ...
... through a large blood vessel called the �abdominal aorta.� If an aneurysm develops here, it is called ... used to create a picture of your abdominal aorta using sound waves. The width of your abdominal ...
physiologically determined parameters to model the abdominal aorta and realistic remodelling rates for its is characterized by a bulge in the abdominal aorta. Development of the AAA is associated with a weakening into the model so that tissue remodeling can be addressed. The abdominal ...
E-print Network
... evaluate the: kidneys liver gallbladder pancreas spleen abdominal aorta and other blood vessels of the abdomen Click ... the gallbladder or kidney. an aneurysm in the aorta. Additionally, ultrasound may be used to provide guidance ...
One hundred cases clinically diagnosed as aneurysm of the abdominal aorta were examined by ultrasound. The findings are described and the value and limitations of the method assessed.ImagesFig. 1Fig. 2Fig. 3Fig. 4Fig. 5
PubMed Central
images of abdominal aortic aneurysms have been segmented to determine the location of aorta of aorta in order to plan treatment. Diagnostic procedure in such cases includes taking CT scan of the abdominal region. After the images are obtained it is necessary to determine the location of ...
Patients with functioning renal transplant who develop abdominal aortic aneurysm can safely be treated with endovascular repair. Endovascular repair of aneurysm avoids renal ischemia associated with cross-clamping of aorta.
Energy Citations Database
abdominal aortic aneurysm repair is surgery to fix a widened part (aneurysm) in your aorta, the large artery that carries blood to your belly (abdomen), pelvis, and legs. An...
Science.gov Websites
... New Aortic Aneurysm Fact Sheet An aortic aneurysm (AA) is a ballooning or dilatation of the aorta, ... in the chest, it is called a thoracic AA, in the abdomen an abdominal AA (AAA), and ...
... this fact sheet [PDF�336K] An aortic aneurysm (AA) is a ballooning or dilatation of the aorta, ... in the chest, it is called a thoracic AA, in the abdomen an abdominal AA (AAA), and ...
Abdominal aortic false aneurysms in patients with Behcet's disease have been reported frequently and repaired successfully by various procedures; however, anastomotic false aneurysms have often been reported to occur after the operation. In this article, we report a case of four-time repetitive, recurrent suprarenal ...
PubMed
Mycotic aneurysms of the abdominal aorta are uncommon, but potentially lethal problems. Clinical subtleties may suggest their presence, but in the past, definitive diagnosis has been dependent on surgical exploration or autopsy findings. A case is presented in which 67-gallium citrate abdominal scanning localized ...
This report describes the fifth instance of successful surgical management of a false aneurysm of the abdominal aorta following penetrating injury (a stab wound). The aortic opening of the aneurysm was located at the level of the left renal artery. The importance of direct and quick transluminal repair to avoid ...
The authors describe the algorithm of examination and methods of operation on 24 patients. It allowed shortening the time of compression of the aorta, of acute ischemia of the lower extremities, less operation blood loss, exclusion of postoperative lethality. PMID:18522178
The present study further characterizes trace element and mineral concentrations in abdominal aortic aneurysms (AAA) to better evaluate their distribution within the aorta. Specimens from the infrarenal abdominal aorta were obtained from 27 patients with ...
National Technical Information Service (NTIS)
You had open aortic aneurysm surgery to repair an aneurysm (a widened part) in your aorta, the large artery that carries blood to your belly (abdomen), pelvis, and legs. You...
aortic borders. Outputs of these two segmentations give a complete 3-D model of abdominal aorta. Such a 3, inflammatory, mycotic diseases as well as by arteriosclerosis. It results in enlargement of the abdominal aorta: Evolution of 3-D deformable model inside tubular object The abdominal ...
To investigate the effects of a tissue inhibitor of the matrix metalloproteinase-2 (TIMP-2) gene on the extracellular matrix of the abdominal aorta, models of rat abdominal aortic aneurysm were utilized and a solution of AdTIMP-2 was perfused into the abdominal aorta. The ...
Patients with aneurysmal dissections involving both the thoracic and the abdominal aorta are particularly challenging to treat with endovascular techniques because of the natural communications at the level of the visceral arteries. We present the case of a patient with Marfan syndrome with an aneurysmal aortic ...
Endovascular repair of aneurysms involving the visceral segment of the abdominal aorta still remains a challenge. We report a patient with a large saccular aneurysm involving the visceral segment of the abdominal aorta that was ultimately excluded by endovascular deployment ...
Total correction of tetralogy of Fallot. Double coronary bypass. "Right aorta- femoral bypass. Resection, aneurysm at abdominal ...
NASA Website
tears and blood leaks into the wall of the artery. This most commonly occurs in the aorta within the chest. Complications include: Arterial embolism Heart attack Hypovolemic...
We report on a the endovascular treatment of ruptured abdominal aortic aneurysm with aortocaval fistula. The stent-graft was placed with the patient under general anaesthesia, and the abdominal aorta aneurysm was successfully treated. To prevent pulmonary embolism vena cava filter was deployed ...
�Atherosclerotic� abdominal aortic aneurysms (AAAs) occur with the greatest frequency in the distal aorta. The unique hemodynamic environment of this area predisposes it to site-specific degenerative changes. In this review, we summarize the differential hemodynamic influences present along the length of the ...
The diagnostic role of Magnetic Resonance Angiography (MRA) was investigated in the study of the thoracic and abdominal aorta. Thirty-two patients with different conditions were examined: the thoracic aorta was affected in 7 cases (3 aneurysms, 2 dissections, 2 tumors) and the abdominal ...
The aim of this study was to report successful surgical management of an inflammatory abdominal aortic aneurysm associated with a retroaortic left renal vein. The patient, a 78-year-old man, presented with diffuse abdominal pain, fever, and constipation. Contrast-enhanced computed tomography showed soft tissue surrounding the ...
... cm were present in the thoracic and abdominal aorta extending below the bifurcation of the renal arteries. ... were diffusely emphysematous, mottled, and wet. The thoracic aorta was dilated at the level o...
NBII National Biological Information Infrastructure
Radionuclide angiography is a rapid, safe, and reliable method of imaging aneurysms of the abdominal aorta in patients who are too ill to undergo contrast angiography or when time is a critical factor.
One to four per cent of all deaths in patients over 65 are caused by aneurysmatic diseases of the abdominal or thoracic aorta. For elective surgery in abdominal aneurysms, open surgery and endovascular treatment both demonstrate brilliant overall results. In the thoracic aorta, new endovascular ...
This report describes an incidental finding of a pseudoaneurysm of the abdominal aorta on a computed tomography (CT) renal angiogram during investigation of chronic renal failure in a 73-year-old man. The patient had undergone a translumbar aortogram 20 years previously. An increase in the size of the aneurysm by 7 mm over 6 months ...
The standard surgical approach to nonleaking iliac aneurysms found at repair of a leaking abdominal aortic aneurysm is to minimize the operative risk by repairing the abdominal aorta only. This means that the bypassed iliac aneurysms may have to be repaired later. As this ...
An infected graft and a mycotic pseudoaneurysm were successfully resected by employing an ascending aortasupraceliac abdominal aorta bypass graft in a 19-year-old man. He had formerly undergone graft replacement surgery for traumatic aneurysm of the descending thoracic aorta, with the aid of a temporary external ...
We report the case of an inflammatory abdominal aortic aneurysm incidentally detected clearly with diffusion-weighted magnetic resonance imaging (DW-MRI) during the examination of a patient with myelofibrosis with myeloid metaplasia that later converted to acute myeloid leukemia. DW-MRI revealed a hyperintense halo surrounding the ...
Haemodynamics studies of abdominal aortic aneurysm require data on the velocity in the normal section of the aorta. Centreline velocity waveforms were measured in abdominal aortic aneurysm patients proximal to the aneurysm using spectral Doppler ultrasound. Characteristic ...
We describe a 74-year-old male who underwent open stent repair for an infrarenal abdominal aortic aneurysm with a severely calcified aortic neck. The stent graft was constructed by covering a 50-mm long Gianturco Z stent (diameter: 20 mm) with a Dacron prosthesis (diameter: 20 mm). The stented Dacron graft was inserted into the calcified aortic neck, was ...
Superior mesenteric artery (SMA) syndrome is a rare condition in which the third part of the duodenum is trapped between the abdominal aorta and the SMA. Any disease process decreasing the angle between the aorta and the SMA can result in external compression of the duodenum and subsequent intestinal obstruction. ...
... when the layers of the wall of the aorta separate or are torn, allowing blood to flow ... called a cerebral aneurysm. In parts of the aorta. The aorta is the large vessel that carries ...
... may be used to screen for an abdominal aortic aneurysm. An abdominal aortic aneurysm is a weakened, bulging spot in your abdominal ... An abdominal ultrasound to screen for an abdominal aortic aneurysm is recommended for men ...
We present a case of 71 year old man operated in our clinic for ruptured abdominal aneurysm complicated with aorto-caval fistula, which was revealed during the surgery and successfully repaired by direct sutures within the aorta. This is the first record of the aorto-caval fistula that was so far noticed in our clinic. Urgent surgery ...
A method for reliable, noninvasive estimation of abdominal aortic aneurysms (AAA) wall mechanics may be a useful clinical tool for rupture prediction. An in vitro AAA model was developed from an excised porcine aorta with elastase treatment. The AAA model behaviour was analysed using acoustic radiation force impulse (ARFI) imaging ...
Inflammatory leukocytes play a central role in the pathogenesis of human atherosclerotic disease, from early atherogenesis to the late stages of atherosclerosis, such as aneurysm formation. We have shown previously that human abdominal aortic aneurysms are characterized by the presence of numerous chronic inflammatory cells throughout ...
In the surgical treatment of abdominal aortic aneurysm, the single proximal cross-clamp can be placed at 3 alternative aortic levels: infrarenal, hiatal, and thoracic. We performed this retrospective study to evaluate the advantages and disadvantages of the 3 main aortic clamping locations. Eighty patients presented at our institution with ...
II-induced inflammatory responses and abdominal aortic aneurysm formation in apoE-deficient mice aneurysmal tissue and in angiotensin II (Ang II)-induced AAAs in apolipoprotein E-deficient (apoE-/- ) mice. GX sPLA2 mRNA was increased significantly (11-fold) in abdominal aortas of apoE-/- mice ...
Aortic aneurysms are common among the elderly population. Large majority of aortic aneurysms are located at two distinct aneurysm-prone regions�the abdominal aorta and thoracic aorta involving the ascending aorta. In this study, we combined two ...
Aortic aneurysms are common among the elderly population. A large majority of aortic aneurysms are located at two distinct aneurysm-prone regions, the abdominal aorta and thoracic aorta involving the ascending aorta. In this study, we combined two ...
Extensive studies into the etiology of aortic aneurysm disease have focused on the characteristic and unique inflammatory infiltration and elaboration of products of inflammatory cells which can result in matrix degradation. While these changes clearly have a significant impact on the development of aneurysm disease, little attention has been paid to the ...
The velocity field in a patient-specific abdominal aneurysm model including the aorto-iliac bifurcation was measured by 2D PIV. Phase-averaged velocities obtained in 14 planes reveal details of the flow evolution during a cycle. The aneurysm expanding asymmetrically toward the anterior side of the aorta causes the ...
NASA Astrophysics Data System (ADS)
Aortic aneurysms occur in the thoracic and abdominal sections of the aorta and are a deadly late-age-at-onset disease with complex pathobiology. Currently, the number of published genome-wide analyses including microarray-based expression profiling, DNA linkage studies, and genetic association studies is still limited and it is ...
EVAR; Endovascular aneurysm repair - aorta; AAA repair - endovascular; Repair - aortic aneurysm - endovascular ... to guide the stent graft up into your aorta, to where the aneurysm is located. The doctor ...
The aorta was exposed by a standard "nephrectomy" incision through the eleventh interspace in 53 patients with aneurysmal or occlusive disease. The plane posterior to the kidney and ureter was developed easily, enabling exposure of the aorta above the level of the celiac axis to its bifurcation by dividing only the crus of the ...
The abdominal aorta (AA) in older individuals can develop an aneurysm, which is of increasing concern in our ageing population. The structural integrity of the ageing aortic wall, and hence aneurysm, depends primarily on effective elastin and multiple families of oriented collagen fibres. In this paper, we show ...
Computed tomography (CT) of the abdomen was performed on 46 patients who had undergone graft replacement of abdominal aortic aneurysms. Twelve post-operative complications were found in nine patients. They included hemorrhage, infection, anastomotic pseudoaneurysms, major vessel occlusion, postoperative pancreatitis, and others. The varied apperance of the ...
Pseudoaneurysms of the ascending aorta after the original inclusion/wrap technique of the Bentall procedure present a difficult surgical management problem and are associated with substantial morbidity and mortality. Patients with Marfan syndrome frequently develop aneurysms and dissections that involve multiple aortic segments. We present the case of a ...
We report the case of a patient who was transferred to our facility after a CT scan obtained at a local hospital revealed a leaking abdominal aortic aneurysm. Review of the scan showed an aorto-left renal vein fistula. Knowing this fistula was present made the operative repair of the aneurysm and control of the fistula much more ...
Abdominal aortic aneurysms represent a life-threatening condition characterized by chronic inflammation, destructive remodeling of the extracellular matrix, and increased local expression of matrix metalloproteinases (MMPs). Both 92-kD gelatinase (MMP-9) and macrophage elastase (MMP-12) have been implicated in this disease, but it is not known if either is ...
Our objective was to test vibrometry as a means to measure changes in aneurysm sac pressure in an in vitro aneurysm model. Explanted porcine abdominal aortas and nitrile rubber tubes were used to model an aneurysm sac. An ultrasound beam was used to vibrate the surface of the ...
The presented work is only a minor contribution to the extensively elaborated method of surgical treatment of subrenal aneurysms of the abdominal aorta, informing on the unusual pattern of important anatomical structures in the surgical field involving the retroaortal localization of the left renal artery which runs closely dorsally ...
A 47-year-old woman complained of abdominal pain, and a computed tomography scan indicated compressive obstruction of the celiac axis and a 4-cm retropancreatic aneurysm. An angiogram identified the aneurysmal vessel as the posterior pancreaticoduodenal artery. All foregut structures were supplied by this ...
The choice of simultaneous or staged surgery in patients with valvular diseases and abdominal aortic aneurysms (AAA) remains controversial. We present a case of simultaneous surgery of double valve replacement and abdominal aorta replacement in a patient with infective endocarditis. A 74-year-old woman was admitted ...
A case of superior mesenteric artery branch aneurysm is described. A 43-year-old female patient was hospitalized after the incidental discovery of a low echogenic mass next to the superior mesenteric artery trunk. A selective superior mesenteric arteriography confirmed aneurysms of the inferior pancreaticoduodenal artery and an aortogram demonstrated ...
This prospective study was aimed at comparing the diagnostic accuracy of Magnetic Resonance Angiography (MRA) with that of color-Doppler ultrasonography (color-Doppler US) in the detection and assessment of abdominal aortic aneurysms. Twenty patients with abdominal aortic aneurysms underwent MRA, color-Doppler US, ...
Abdominal aortic aneurysm with spontaneous aorto-left renal vein fistula is a rare but well-described clinical entity usually with abdominal pain, hematuria, and a nonfunctioning left kidney. This report describes a 44-year-old man with left-sided groin pain and varicocele who was treated with conservative measures only. The diagnosis ...
We investigated the usefulness of single shot gradient echo type echo planar imaging (GRE-EPI) as magnetic resonance angiography (MRA) for the diagnosis of aortic aneurysm and dissection. This technique can detect blood flow signals in several tenths of a milliseconds without the need for contrast medium, breath-holding, or electrocardiographic (ECG) gating. By scanning ...
Two studies were undertaken to estimate the prevalence of abdominal aortic aneurysm in a hypertensive population. The initial study screened hypertensive people from three local general practices. In this study 918 patients underwent ultrasound scanning of the abdominal aorta (498 men and 420 women). A total of 24 ...
The implantation of stent grafts is a relatively new method for the treatment of aneurysms of the aorta or peripheral aneurysms. Before the implantation precise measurements are mandatory to obtain the necessary information about the aneurysm. The numerous contraindications must be observed strictly to successfully ...
The infrarenal aorta was examined by ultrasound in 329 men who had lost a leg in World War II and in 702 war veterans. The groups were similar in terms of age and risk factors for arteriosclerosis. Abdominal aortic aneurysms were found in 5.8% of the amputees compared with 1.1% of the non-amputees. Unilateral flow reduction after leg ...
BackgroundThe infrarenal abdominal aorta exhibits increased disease susceptibility relative to other aortic regions. Allograft studies exchanging thoracic and abdominal segments showed that regional susceptibility is maintained regardless of location, suggesting substantial roles for embryological origin, tissue composition and ...
... in the wall of an artery, usually the aorta. The bulge usually occurs in a weak area ... medical care. Aneurysms can develop anywhere along the aorta. Three fourths of aortic aneurysms develop in the ...
... are fatal. Overview Most aneurysms occur in the aorta, the main artery that carries oxygen-rich blood from the heart to the body. The aorta goes through the chest and abdomen. An aneurysm ...
The rupture of an aneurysm of the sub-renal aorta may give rise to several clinical presentations which it is essential to recognise in order to carry out emergency operation, e.g. attack of pain, retroperitoneal hematoma, hemoperitoneum, rupture into a hollow viscus, infective aneurysm. The special characteristics of the treatment ...
To improve the performance of endovascular grafts used for the treatment of abdominal aortic aneurysms, we develop a methodology to analyze the phenomena of type I endoleaks in a non-invasive-stented abdominal aorta. As one aspect of this study, an evaluation of the parietal stresses generated by the blood flow is ...
Aneurysms and pseudoaneurysms of the superior mesenteric artery are potentially lethal and should be treated as urgently as possible. In a 52-year-old man with occasional epigastric pain, we accidentally discovered a superior mesenteric artery aneurysm that was ruptured with spontaneous tamponade in the uncinate process and in the head of the pancreas. The ...
Spontaneous abdominal aortic dissection (AAD) with retrograde thoracic extension is an extremely rare occurrence with a high mortality. Abdominal aortic dissection can be associated with an abdominal aortic aneurysm (AAA) and the presence of an AAD with an AAA mandates surgical intervention because of a high rate ...
Spontaneous rupture of an abdominal aortic aneurysm into a retroaortic left renal vein is an uncommon occurrence. A 55-year-old woman presented with shortness of breath, vomiting, and diffuse abdominal pain that had radiated to her back and legs for the preceding 10 days. A pulsatile abdominal mass, hematuria, ...
Common locations for aneurysms include: The major artery from the heart (the aorta) The brain (cerebral aneurysm) In the leg behind the knee popliteal artery aneurysm)...
BackgroundAbdominal aortic aneurysms (AAA) are local dilatations of the infrarenal aorta. If left untreated they may rupture and lead to death. One form of treatment is the minimally invasive insertion of a stent-graft into the aneurysm. Despite this effective treatment aneurysms may ...
Angiography - aorta; Aortography; Abdominal aorta angiogram; Aortic arteriogram ... needle. The catheter is carefully moved into the aorta. The doctor can see live images of the ...
