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Abdominal Aortic Aneurysm

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6801. Endovascular stent graft repair of abdominal aortic aneurysms after liver transplantation. (Abstract)

Endovascular stent graft repair of abdominal aortic aneurysms after liver transplantation. It is estimated that 1.7% of orthotopic liver transplant recipients will develop abdominal aortic aneurysms (AAAs) after transplantation. It has been observed that these aneurysms expand faster in transplant recipients; therefore, aggressive surveillance for AAAs in transplant recipients is required. Endovascular aneurysm repair is rapidly becoming the standard of care, especially in patients (...) with previous abdominal surgery and other significant comorbidities. This article describes our experience with AAAs in orthotopic liver transplant recipients treated successfully by endovascular stent graft repair.

2005 Liver Transplantation

6802. Prevalence of coronary artery disease, lower extremity peripheral arterial disease, and cerebrovascular disease in 110 men with an abdominal aortic aneurysm. (Abstract)

Prevalence of coronary artery disease, lower extremity peripheral arterial disease, and cerebrovascular disease in 110 men with an abdominal aortic aneurysm. Of 110 men (mean age 66 years) with an abdominal aortic aneurysm, 78 (71%) had coronary artery disease (CAD), 50 (46%) had lower extremity peripheral arterial disease (PAD), and 30 (27%) had cerebrovascular disease. Twenty-four percent of the patients with an abdominal aortic aneurysm had CAD plus lower extremity PAD plus cerebrovascular

2004 American Journal of Cardiology

6803. Perioperative and long-term cardiovascular outcomes in patients undergoing endovascular treatment compared with open vascular surgery for abdominal aortic aneurysm or iliaco-femoro-popliteal bypass. (Abstract)

Perioperative and long-term cardiovascular outcomes in patients undergoing endovascular treatment compared with open vascular surgery for abdominal aortic aneurysm or iliaco-femoro-popliteal bypass. The aim of the present study was to determine the perioperative and long-term cardiac outcomes of patients who underwent elective open or endovascular major vascular surgery corrected for cardiac risk factors and dobutamine stress echocardiography. Consecutive patients who underwent either

2005 American Journal of Cardiology

6804. Frequency of abdominal aortic aneurysm in patients >60 years of age with coronary artery disease. (Abstract)

Frequency of abdominal aortic aneurysm in patients >60 years of age with coronary artery disease. Using B-mode ultrasound, we studied the prevalence of abdominal aortic aneurysm (AAA; diameter > or =3 cm) and its predictive risk factors in 109 consecutive patients who were >60 years of age and had coronary artery disease (CAD). A group of 60 age-matched patients who did not have CAD served as controls. The prevalence of AAA was higher in the CAD group than in the control group (14%, 16 of 109

2005 American Journal of Cardiology

6805. Mortality and size of abdominal aortic aneurysm at long-term follow-up of patients not treated surgically and treated with and without statins. (Abstract)

Mortality and size of abdominal aortic aneurysm at long-term follow-up of patients not treated surgically and treated with and without statins. Of 130 patients with abdominal aortic aneurysms (AAAs) not treated surgically, 75 (58%) were treated with statins. The sizes of the AAAs were 4.6 +/- 0.6 cm at baseline and 4.5 +/- 0.6 cm at 23-month follow-up in patients treated with statins (p = NS) and 4.5 +/- 0.6 cm at baseline and 5.3 +/- 0.6 cm at 24-month follow-up in patients not treated

2006 American Journal of Cardiology

6806. Association of plasma N-terminal pro-B-type natriuretic peptide with postoperative cardiac events in patients undergoing surgery for abdominal aortic aneurysm or leg bypass. (Abstract)

Association of plasma N-terminal pro-B-type natriuretic peptide with postoperative cardiac events in patients undergoing surgery for abdominal aortic aneurysm or leg bypass. Postoperative cardiac events are related to myocardial ischemia and reduced left ventricular function. The utility of N-terminal-pro-B-type natriuretic peptide (NT-pro-BNP) for preoperative cardiac risk evaluation has not been evaluated. The objective of this study was to assess whether plasma NT-pro-BNP predicts

2006 American Journal of Cardiology

6807. Impact of glomerular filtration rate on minor troponin T elevations for risk assessment in patients undergoing operation for abdominal aortic aneurysm or lower extremity arterial obstruction. (Abstract)

Impact of glomerular filtration rate on minor troponin T elevations for risk assessment in patients undergoing operation for abdominal aortic aneurysm or lower extremity arterial obstruction. Debate surrounds the impact of renal function on the prognostic value of minor troponin T release in vascular surgery patients. The objective of this study was to assess the long-term prognostic value of minor degrees of troponin T release in patients who undergo major vascular surgery, especially those

2006 American Journal of Cardiology

6808. Relation of weights of intraaneurysmal thrombi to maximal right-to-left diameters of abdominal aortic aneurysms. (Abstract)

Relation of weights of intraaneurysmal thrombi to maximal right-to-left diameters of abdominal aortic aneurysms. We determined the weight of operatively excised thrombi within abdominal aortic aneurysms (AAAs) in 42 patients aged 52 to 92 years (mean 73 +/- 9). The thrombi in the 32 men ranged in weight from 12 to 586 g (mean 162 +/- 135) and in the 10 women, from 12 to 351 g (mean 94 +/- 102). The maximal right-to-left diameter of the AAA by computed tomography immediately preoperatively

2006 American Journal of Cardiology

6809. Towards evidence-based emergency medicine: best BETs from the Manchester Royal Infirmary. Accuracy of emergency department ultrasound scanning in detecting abdominal aortic aneurysm. Full Text available with Trip Pro

Towards evidence-based emergency medicine: best BETs from the Manchester Royal Infirmary. Accuracy of emergency department ultrasound scanning in detecting abdominal aortic aneurysm. A short-cut review was carried out to establish whether emergency department ultrasound scanning had clinical utility for the diagnosis of abdominal aortic aneurysm (AAA). A total of 73 papers were found using the reported searches, of which 4 presented the best evidence to answer the clinical question. The author

2006 Emergency Medicine Journal

6810. Results of streamlined regional ambulance transport and subsequent treatment of acute abdominal aortic aneurysms. Full Text available with Trip Pro

Results of streamlined regional ambulance transport and subsequent treatment of acute abdominal aortic aneurysms. To describe the triage of patients operated for non-ruptured and ruptured abdominal aortic aneurysms (AAAs) before the endovascular era.Retrospective single-centre cohort study.All patients treated for an acute AAA between 1998 and 2001 and admitted to our hospital were evaluated in the emergency department for urgent AAA surgery. All time intervals, from the telephone call from

2006 Emergency Medicine Journal

6811. Ruptured abdominal aortic aneurysm presenting as buttock pain. Full Text available with Trip Pro

Ruptured abdominal aortic aneurysm presenting as buttock pain. This is the first case report of a ruptured aortic aneurysm presenting with acute right buttock pain. The patient was an 80 year old man. A literature search revealed one report of ruptured internal iliac artery aneurysm presenting with acute hip pain and another of an unruptured aortic aneurysm presenting with chronic hip pain. Thus the present case is another unusual presentation of ruptured abdominal aortic aneurysm (...) and highlights the importance of careful history taking and clinical examination. A high index of clinical suspicion of aneurysm rupture should be maintained in elderly patients presenting with a history of collapse.

2005 Emergency Medicine Journal

6812. Ultrasound by emergency physicians to detect abdominal aortic aneurysms: a UK case series. Full Text available with Trip Pro

Ultrasound by emergency physicians to detect abdominal aortic aneurysms: a UK case series. Early identification of abdominal aortic aneurysms in some patients can be difficult and the diagnosis is missed in up to 30% of patients. Ultrasound cannot be used to identify a leak, but the presence of an aneurysm in an unstable patient is conclusive. With minimal training emergency physicians can easily identify the aorta and thus in the early phase of resuscitation an aneurysm can be confidently (...) excluded. The purpose of the examination is not to delineate the extent of the aneurysm, but to identify those patients that will need emergency surgery. A series of patients presented to the department in an unstable condition with equivocal abdominal signs. An ultrasound scan in the resuscitation room by members of the emergency department revealed an aneurysm, which was enough to convince the vascular surgeons to take the patient straight to theatre with good results. In patients who are stable

2004 Emergency Medicine Journal

6813. False positive abdominal aortic aneurysm on bedside emergency ultrasound. (Abstract)

of false positive abdominal aortic aneurysm diagnosis with ultrasound use. We report a case of a false positive abdominal aortic aneurysm diagnosed in a patient with a previously unknown large malignant para-aortic lymph node. (...) False positive abdominal aortic aneurysm on bedside emergency ultrasound. Bedside ultrasound is the diagnostic method of choice for unstable patients with suspected abdominal aortic aneurysm. Its ability to provide rapid and accurate diagnosis is critical in an emergency setting. Previous studies have documented the ability of Emergency Physicians to accurately diagnose abdominal aortic aneurysms, thus potentially saving lives. A search of the medical literature did not reveal any reports

2004 Journal of Emergency Medicine

6814. Acute abdominal aortic aneurysm rupture presenting as transient paralysis of the lower legs: a case report. (Abstract)

Acute abdominal aortic aneurysm rupture presenting as transient paralysis of the lower legs: a case report. This article describes the case of a 40-year-old man with transient paralysis of both legs as the major symptom of an acute abdominal aortic aneurysm rupture presumably due to the occlusion of blood flow to the conus medullaris.

2005 Journal of Emergency Medicine

6815. Accuracy of emergency medicine ultrasound in the evaluation of abdominal aortic aneurysm. (Abstract)

Accuracy of emergency medicine ultrasound in the evaluation of abdominal aortic aneurysm. This study assesses the accuracy of Emergency Medicine (EM) residents in detecting the size and presence of abdominal aortic aneurysms (AAAs) using EM ultrasound (EUS) compared to radiology measurement (RAD) by computed tomography (CT) scan, magnetic resonance imaging (MRI), angiography, or operative findings. There were 238 aortic EUS performed from 1999-2000; 36 were positive for AAA. The EUS finding (...) of "AAA" had a sensitivity of 0.94 (0.86-1.0 95% confidence interval [CI]) and specificity of 1 (0.98-1.0 95% CI). Mean aortic diameter among patients with AAA identified by EUS was 5.43+/-1.95 cm and by RAD was 5.35+/-1.83 cm. The mean absolute difference between EUS and RAD diameters was 4.4 mm (95% CI 3.7-5.5 mm). Regression of EUS on RAD diameters is strongly correlated, with R(2)=0.92. EM residents with appropriate training can accurately determine the presence of AAA as well as the maximal

2005 Journal of Emergency Medicine

6816. A comparison among portal lactate, intramucosal sigmoid Ph, and deltaCO2 (PaCO2 - regional Pco2) as indices of complications in patients undergoing abdominal aortic aneurysm surgery. (Abstract)

A comparison among portal lactate, intramucosal sigmoid Ph, and deltaCO2 (PaCO2 - regional Pco2) as indices of complications in patients undergoing abdominal aortic aneurysm surgery. Our aim in this observational, prospective, noncontrolled study was to detect, in 29 patients who underwent abdominal aortic aneurysm (AAA) surgery, correlations between the incidence of postoperative organ failure and intraoperative changes in arterial and portal blood lactate; changes in intramucosal sigmoid pH

2004 Anesthesia and Analgesia

6817. Detection, management, and prospects for the medical treatment of small abdominal aortic aneurysms. Full Text available with Trip Pro

Detection, management, and prospects for the medical treatment of small abdominal aortic aneurysms. Small abdominal aortic aneurysms, up to 5.5 cm in diameter, are very common. Ultrasonography is the most cost-effective method of detecting these aneurysms and keeping them under surveillance, because the natural history is 1 of continued expansion. The expansion rate is in the range 0.25 to 0.35 cm/y and is fastest in current smokers. From a study of expansion rates, it has been possible (...) to formulate guidelines for the intervals at which surveillance should occur. Although the evidence from randomized trials indicates that early, open, elective surgery for small aneurysms does not save lives, when aneurysms exceed 5.5 cm in diameter, either open or endovascular surgery is recommended. To prevent small aneurysms reaching the 5.5-cm threshold, new treatments to reduce the expansion rate by >50% need to be designed, based on the underlying pathologic processes: proteolysis and inflammation

2004 Thrombosis and Vascular Biology

6818. Incidence of fatal or repaired abdominal aortic aneurysm in relation to inflammation-sensitive plasma proteins. Full Text available with Trip Pro

Incidence of fatal or repaired abdominal aortic aneurysm in relation to inflammation-sensitive plasma proteins. Background- Inflammation is an important pathophysiological feature of abdominal aortic aneurysms (AAA). Whether elevated levels of inflammation-sensitive plasma proteins (ISPs) predict the long-term risk of fatal or repaired AAA is largely unknown.Five ISPs (fibrinogen, orosomucoid, alpha1-antitrypsin, haptoglobin, and ceruloplasmin) were measured in 6075 healthy men, mean age 46.8

2004 Thrombosis and Vascular Biology

6819. Mouse models of abdominal aortic aneurysms. Full Text available with Trip Pro

Mouse models of abdominal aortic aneurysms. Many mouse models of abdominal aortic aneurysms have been developed that use a diverse array of methods for producing the disease, including genetic manipulation and chemical induction. These models could provide insight into potential mechanisms in the development of this disease. Although experimental studies on abdominal aortic aneurysms (AAAs) have used a variety of mammalian and avian approaches, there is an increasing reliance on the use of mice

2004 Thrombosis and Vascular Biology

6820. Application of real-time RT-PCR to quantifying gene expression of matrix metalloproteinases and tissue inhibitors of metalloproteinases in human abdominal aortic aneurysm. (Abstract)

Application of real-time RT-PCR to quantifying gene expression of matrix metalloproteinases and tissue inhibitors of metalloproteinases in human abdominal aortic aneurysm. The relative expression levels of matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs), key regulators in remodeling of extracellular matrix, are considered to play a pivotal role in the development of abdominal aortic aneurysm (AAA). However, few data exist regarding quantitative assessment

2004 Atherosclerosis

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