971 resultados para Abdominal Aortic-aneurysm


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This leaflet is given to all men who have attended screening through the Northern Ireland Abdominal Aortic Aneurysm (AAA) Screening Programme and been diagnosed with a medium AAA.The leaflet provides: background information on the AAA screening programme; details on what a medium AAA is; information on the monitoring process to regularly check the size of the AAA;lifestyle advice that may help those men diagnosed with an AAA. Men who have been diagnosed with a medium AAA will be invited to a monitoring scan once every three months, unless their AAA increases in size to a large AAA, at which point they will be referred to a team of vascular specialists for further assessment and the possible offer of surgery.

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This leaflet is given to all men who have attended screening through the Northern Ireland Abdominal Aortic Aneurysm (AAA) Screening Programme and been diagnosed with a large AAA.The leaflet provides: background information on the AAA screening programme; details on what a large AAA is; information on the process of referral to a team of vascular specialists;details on the operation to treat a large AAA;important information on the symptoms of a ruptured AAA;lifestyle advice that may help those men diagnosed with an AAA. Men who have been diagnosed with a large AAA will be invited to meet a team of vascular specialists for further assessment within two or three weeks of their scan. Following additional medical tests, the patient may be offered surgery to treat the large AAA. Those men assessed as unsuitable for an operation will continue to be monitored within the vascular service.

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This inaugural annual report for the Northern Ireland Abdominal Aortic Aneurysm (AAA) Screening Programme (produced jointly by the Public Health Agency and the Belfast Health and Social Care Trust) looks back on a successful first year for the programme. The Public Health Agency (PHA) is responsible for commissioning and quality assuring the programme. The Belfast Health and Social Care Trust is responsible for providing and managing the programme.Following significant planning, AAA screening was introduced on time in June 2012, as required by the Government's 'Priorities for Action' target. There is no doubt that this was due to sustained partnership working across a wide range of health and social care services within Northern Ireland.

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This information leaflet is for all men invited to take part in the Northern Ireland Abdominal Aortic Aneurysm (AAA) Screening Programme. Men will automatically be invited for screening in their 65th year, while men aged over 65 can request a scan through the central screening office.

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Suite à des essais cliniques randomisés démontrant l'efficacité du dépistage de l'anévrisme de l'aorte abdominale (AAA) par échographie, plusieurs recommandations ont été publiées dans de nombreux pays en faveur du dépistage dans une partie de la population générale. De plus, au-delà de la rupture aortique, le dépistage d'un petit AAA semble être une bonne occasion d'appliquer les stratégies de prévention secondaire, permettant une amélioration globale du pronostic cardiovasculaire du patient. Ces recommandations sont cependant peu suivies; les campagnes de dépistage systématique sont rares, laissant la responsabilité du dépistage au médecin généraliste. Cet article se propose de discuter les raisons de la non-implantation du dépistage de l'AAA. [Abstract] Following the evidence of benefits of ultrasound screening for abdominal aorta aneurysms (AAA), several guidelines support this screening in population. Beyond the prompt diagnosis of AAA prior to its rupture of grim vital prognosis, small AAA can beconsidered as a prognostic marker for cardiovascular diseases (CVD). Yet, its detection is an opportunity for secondary prevention to reduce CVD mortality. Despite, these guidelines are poorly applied: systematic screening campaigns are infrequent, making the screening of family physicians responsibility. While the major benefit from this screening strategy is to reduce AAA-related death (but only trivial effect on long-term total mortality), this explains only partially the lack of guidelines implementation. The reasons of the poor implementation of these guidelines are discussed herein.

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OBJECTIVES: in a retrospective study, attempts have been made to identify individual organ-dysfunction risk profiles influencing the outcome after surgery for ruptured abdominal aortic aneurysms. METHODS: out of 235 patients undergoing graft replacement for abdominal aortic aneurysms, 57 (53 men, four women, mean age 72 years [s.d. 8.8]) were treated for ruptured aneurysms in a 3-year period. Forty-eight preoperative, 13 intraoperative and 34 postoperative variables were evaluated statistically. A simple multi-organ dysfunction (MOD) score was adopted. RESULTS: the perioperative mortality was 32%. Three patients died intraoperatively, four within 48 h and 11 died later. A significant influence for pre-existing risk factors was identified only for cardiovascular diseases. Multiple linear-regression analysis indicated that a haemoglobin <90 g/l, systolic blood pressure <80 mmHg and ECG signs of ischaemia at admission were highly significant risk factors. The cause of death for patients, who died more than 48 h postoperatively, was mainly MOD. All patients with a MOD score >/=4 died (n=7). These patients required 27% of the intensive-care unit (ICU) days of all patients and 72% of the ICU days of the non-survivors. CONCLUSION: patients with ruptured aortic aneurysms from treatment should not be excluded. However, a physiological scoring system after 48 h appears justifiable in order to decide on the appropriateness of continual ICU support.

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Since the first implantation of an endograft in 1991, endovascular aneurysm repair (EVAR) rapidly gained recognition. Historical trials showed lower early mortality rates but these results were not maintained beyond 4 years. Despite newer-generation devices, higher rates of reintervention are associated with EVAR during follow-up. Therefore, the best therapeutic decision relies on many parameters that the physician has to take in consideration. Patient's preferences and characteristics are important, especially age and life expectancy besides health status. Aneurysmal anatomical conditions remain probably the most predictive factor that should be carefully evaluated to offer the best treatment. Unfavorable anatomy has been observed to be associated with more complications especially endoleak, leading to more re-interventions and higher risk of late mortality. Nevertheless, technological advances have made surgeons move forward beyond the set barriers. Thus, more endografts are implanted outside the instructions for use despite excellent results after open repair especially in low-risk patients. When debating about AAA repair, some other crucial points should be analysed. It has been shown that strict surveillance is mandatory after EVAR to offer durable results and prevent late rupture. Such program is associated with additional costs and with increased risk of radiation. Moreover, a risk of loss of renal function exists when repetitive imaging and secondary procedures are required. The aim of this article is to review the data associated with abdominal aortic aneurysm and its treatment in order to establish selection criteria to decide between open or endovascular repair.

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The prevalence of abdominal aortic aneurysm (AAA) in general population is 4-9% with a high mortality rate when ruptured. Therefore, screening programs were developed in many countries to detect small and large AAA in selected patients. Indeed, prevalence of AAA increases in patients over 65 years old with cigarette smoking history. This paper reviews recent literature related to AAA screening focusing on epidemiology, screening tests and evidence based medicine to highlight not only advantages but also disadvantages of screening programs among population.

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The treatment of abdominal aortic aneurysm (AAA) has shifted from the exposure of the aorta artery in an open repair technique to a small groin cut in an endovascular repair. Recently, a percutaneous access for endovascular repair has appeared. This new technique aims to minimize the complications of the common femoral artery exposure, the patient discomfort and the length of hospitalizationObjectives: To compare the proportion of discharged patients within the first 48 postoperative hours of two common femoral artery accesses for endovascular repair of AAA: the open exposure technique and the percutaneous technique. Secondary objectives include to evaluate the total procedure time, the femoral access complications, the need for extra analgesia and the patient satisfaction and groin discomfort of the two techniquesDesign: Randomized controlled trial conducted between 2014 and 2017Participants: Patients diagnosed with abdominal aortic aneurysm with elective endovascular repair indication

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This thesis was created in Word and converted to PDF using Mac OS X 10.7.5 Quartz PDFContext.

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Le traitement chirurgical des anévrismes de l'aorte abdominale est de plus en plus remplacé par la réparation endovasculaire de l’anévrisme (« endovascular aneurysm repair », EVAR) en utilisant des endoprothèses (« stent-grafts », SGs). Cependant, l'efficacité de cette approche moins invasive est compromise par l'incidence de l'écoulement persistant dans l'anévrisme, appelé endofuites menant à une rupture d'anévrisme si elle n'est pas détectée. Par conséquent, une surveillance de longue durée par tomodensitométrie sur une base annuelle est nécessaire ce qui augmente le coût de la procédure EVAR, exposant le patient à un rayonnement ionisants et un agent de contraste néphrotoxique. Le mécanisme de rupture d'anévrisme secondaire à l'endofuite est lié à une pression du sac de l'anévrisme proche de la pression systémique. Il existe une relation entre la contraction ou l'expansion du sac et la pressurisation du sac. La pressurisation résiduelle de l'anévrisme aortique abdominale va induire une pulsation et une circulation sanguine à l'intérieur du sac empêchant ainsi la thrombose du sac et la guérison de l'anévrisme. L'élastographie vasculaire non-invasive (« non-invasive vascular elastography », NIVE) utilisant le « Lagrangian Speckle Model Estimator » (LSME) peut devenir une technique d'imagerie complémentaire pour le suivi des anévrismes après réparation endovasculaire. NIVE a la capacité de fournir des informations importantes sur l'organisation d'un thrombus dans le sac de l'anévrisme et sur la détection des endofuites. La caractérisation de l'organisation d'un thrombus n'a pas été possible dans une étude NIVE précédente. Une limitation de cette étude était l'absence d'examen tomodensitométrique comme étalon-or pour le diagnostic d'endofuites. Nous avons cherché à appliquer et optimiser la technique NIVE pour le suivi des anévrismes de l'aorte abdominale (AAA) après EVAR avec endoprothèse dans un modèle canin dans le but de détecter et caractériser les endofuites et l'organisation du thrombus. Des SGs ont été implantés dans un groupe de 18 chiens avec un anévrisme créé dans l'aorte abdominale. Des endofuites de type I ont été créés dans 4 anévrismes, de type II dans 13 anévrismes tandis qu’un anévrisme n’avait aucune endofuite. L'échographie Doppler (« Doppler ultrasound », DUS) et les examens NIVE ont été réalisés avant puis à 1 semaine, 1 mois, 3 mois et 6 mois après l’EVAR. Une angiographie, une tomodensitométrie et des coupes macroscopiques ont été réalisées au moment du sacrifice. Les valeurs de contrainte ont été calculées en utilisant l`algorithme LSME. Les régions d'endofuite, de thrombus frais (non organisé) et de thrombus solide (organisé) ont été identifiées et segmentées en comparant les résultats de la tomodensitométrie et de l’étude macroscopique. Les valeurs de contrainte dans les zones avec endofuite, thrombus frais et organisé ont été comparées. Les valeurs de contrainte étaient significativement différentes entre les zones d'endofuites, les zones de thrombus frais ou organisé et entre les zones de thrombus frais et organisé. Toutes les endofuites ont été clairement caractérisées par les examens d'élastographie. Aucune corrélation n'a été trouvée entre les valeurs de contrainte et le type d'endofuite, la pression de sac, la taille des endofuites et la taille de l'anévrisme.

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Open surgical repair of complex abdominal aortic aneurysms requires more extensive dissection and aortic clamping above the renal or mesenteric arteries. Although results of open surgical series have shown variation, morbidity and mortality is higher compared with infrarenal aortic aneurysm repair. Potential complications include renal insufficiency, mesenteric ischemia, multisystem organ failure, and death. Although endovascular treatment with fenestrated and branched endografts might potentially decrease the risk of complications and mortality, its role is not yet defined and the technology is not widely available. Issues related to durability of the procedure and secondary interventions might limit its application to patients with higher risk or those with hostile anatomy. This article summarizes the clinical results of open surgical repair of pararenal abdominal aortic aneurysms to provide a benchmark for comparison with results of endovascular treatment, using fenestrated and branched techniques. © Annals of Vascular Surgery Inc.

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Objectives: To evaluate the efficacy and safety of enhanced recovery after surgery (ERAS) programs in elective open surgical repair (OSR) of abdominal aortic aneurysm (AAA).Background: Open surgical repair of AAA is associated with high morbidity and mortality, prolonged hospital stay and high costs. ERAS programs contribute to the optimization of treatment by reducing hospital stay and improving clinical outcomes.Methods: A review of PubMed, EMBASE and LILACS databases was conducted. As only one randomized controlled trial was found, a pooled analysis of proportions from case series was conducted, considering it a complementary overview of the topic. Inclusion criteria were case series with more than five cases reported, adult patients who underwent an elective OSR of AAA and use of an ERAS program. ERAS was compared to conventional perioperative care. The pooled proportion and the confidence interval (CI) are shown for each outcome. The overlap of the CI suggests similar effect of the interventions studied.Results: Thirteen case series studies with ERAS involving 1,250 patients were compared to six case series with conventional care with a total of 1,429 patients. The pooled, respective proportions for ERAS and conventional care were: mortality, 1.51% [95% CI: 0.0091, 0.0226] and 3.0% [95% CI 0.0183, 0.0445]; and incidence of complications, 3.82% [95% CI 0.0259, 0.0528] and 4.0% [95% CI 0.03, 0.05].Conclusion: This review shows that ERAS and conventional care therapies have similar mortality and complication rates in OSR of AAA.

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Giant aortic aneurysms (transverse diameter greater than 10.0 cm) are rare and open surgery is often the treatment of choice. We report an infrarenal saccular giant aortic aneurysm (measuring 25 cm in transverse diameter), which was treated with endovascular repair, with immediate technical success. No similar report of a giant infrarenal aortic aneurysm treated with an endovascular technique was found in the literature. High-risk patients could possibly benefit from the endovascular technique. Nevertheless, patient survival remains strongly influenced by comorbidities.