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Abdominal aortic aneurysms

Christina Lund Kidholm, Hans Christian Beck, Julie Bukh Madsen, Nikolai Bjødstrup Palstrøm, Jes Sanddal Lindholt, Lars Melholt Rasmussen
OBJECTIVE: The pathogenesis of abdominal aortic aneurysms (AAA) involves a disturbed balance of breakdown and buildup of arterial proteins. We envision that individuals with AAA carry generalized arterial protein alterations either because of effects of genetically or environmental AAA risk factors or because of compensatory changes due to signaling molecules released from the affected aneurysmal tissue. APPROACH: Protein extraction and quantitative proteome analysis by LC-MS/MS (liquid chromatography-mass spectrometry) was done on individual samples from the internal mammary artery from 11 individuals with AAA and 33 sex- and age-matched controls without AAA...
2018: PloS One
A Karthikesalingam, M J Grima, P J Holt, A Vidal-Diez, M M Thompson, A Wanhainen, M Bjorck, K Mani
BACKGROUND: There is substantial international variation in mortality after abdominal aortic aneurysm (AAA) repair; many non-operative factors influence risk-adjusted outcomes. This study compared 90-day and 5-year mortality for patients undergoing elective AAA repair in England and Sweden. METHODS: Patients were identified from English Hospital Episode Statistics and the Swedish Vascular Registry between 2003 and 2012. Ninety-day mortality and 5-year survival were compared after adjustment for age and sex...
February 22, 2018: British Journal of Surgery
Kaptanıderya Tayfur, Mehmet Senel Bademci, Serkan Yazman, Murat Canyigit
Background Here, we report the mid-term results of endovascular treatment of isolated dissection of the abdominal aorta, which is a very rare pathology. Materials and methods A total of 11 patients (4 males (36.3%) and 7 females (63.6%)) aged 42-72 (mean, 60.3 ± 10.45) years with isolated dissection of the abdominal aorta underwent endovascular stent-graft treatment at our institution between August 2010 and September 2015. Eight patients were symptomatic, and the remaining three were asymptomatic. The asymptomatic patients had aortic aneurysms coexisting with dissection...
January 1, 2018: Vascular
Payman Majd, Wael Ahmad, Noemi Galas, Jan S Brunkwall
PURPOSE: To investigate the long-term outcomes of endovascular aneurysm repair (EVAR) and open surgical repair (OSR) of infrarenal abdominal aortic aneurysm in octogenarian patients and to compare them with the overall expected survival based on a sex- and age-matched German population. METHODS: A total of 177 patients (median age 82 years; 149 men) ≥80 years old (range 80-92) who underwent primary elective repair of an infrarenal aortic aneurysm (≥5 cm) between 1998 and 2015 were identified in a database search...
February 1, 2018: Journal of Endovascular Therapy
Jae Hyun Kim, Woo Sung Jang, Jae-Bum Kim
No abstract text is available yet for this article.
February 2018: Journal of Cardiac Surgery
A J Quyn, C G Fraser, J Rodger, A Digan, A S Anderson, R J C Steele
BACKGROUND: Uptake of population-based screening for colorectal cancer in Scotland is around 55 per cent. Abdominal aortic aneurysm (AAA) screening has recently been introduced for men aged 65 years and the reported uptake is 78 per cent. The aim was to determine the impact of a brief intervention on bowel screening in men who attended AAA screening, but previously failed to complete bowel screening. METHODS: Men invited for AAA screening between September 2015 and March 2016 within NHS Tayside were included...
February 21, 2018: British Journal of Surgery
Krister Liungman, Kevin Mani, Anders Wanhainen, Linus Bosaeus, Mario Lachat
OBJECTIVE: A new endovascular tool, the Liungman Guidewire Fixator, has been developed to simplify endovascular treatment in complex aortic aneurysms. The device has been extensively tested in bench models and animal trials. To verify the safety and functionality demonstrated in the porcine model, the device was tested in ten patients undergoing endovascular aortic repair (EVAR) or fenestrated endovascular aortic repair (f-EVAR) treatment for abdominal aortic aneurysm. METHODS: The Liungman Guidewire Fixator consists of a braided stent-like, cylindrical structure with conical ends and a central channel for a 0...
February 21, 2018: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
Ashley J Williamson, Trissa Babrowski
INTRODUCTION: Endovascular approach to abdominal aortic aneurysm has increased in frequency over the last decade and is preferred by many practitioners and patients alike. However, its role in "complex" aneurysms with challenging anatomy, short neck length, or borderline landing zone for grafts is less well understood. Additionally, the endovascular role in complex urgent or emergent repairs has not been adequately studied. Several techniques have been developed in order to address these concerns and further the endovascular approach...
February 19, 2018: Journal of Cardiovascular Surgery
Jacopo Alfonsi, Giacomo Murana, Henri G Smeenk, Hans Kelder, Marc Schepens, Uday Sonker, Wim J Morshuis, Robin H Heijmen
OBJECTIVES: Chronic, post-dissection thoraco-abdominal aortic aneurysms (TAAAs) are increasingly being treated by (hybrid) endovascular means. Although it is less invasive, thoracic endovascular aortic repair is technically complex with the risk of incomplete aneurysm exclusion, necessitating frequent reinterventions with potentially reduced long-term outcomes. The aim of this study was to evaluate contemporary early and late outcomes after open surgical repair of post-dissection TAAA...
February 16, 2018: European Journal of Cardio-thoracic Surgery
R N Komarov, I A Vinokurov, P A Karavaykin, I M Abdulmutalibov, Yu V Belov
AIM: To generalize our experience of step-by-step hybrid thoracoabdominal aortic replacement. MATERIAL AND METHODS: Twenty-three patients were enrolled who underwent staged hybrid treatment of thoracoabdominal aortic aneurysm. There were 5 (21.7%) women and 18 (78.3%) men aged 61.4±8.3 years (37-74 years). The first stage was proximal debranching, the second - distal (abdominal) procedure and the third - stenting of the thoracoabdominal aorta. RESULTS: There were no any complications after proximal debranching and aortic stenting...
2018: Khirurgiia
Julia Dangelmaier, Daniel Bar-Ness, Heiner Daerr, Daniela Muenzel, Salim Si-Mohamed, Sebastian Ehn, Alexander A Fingerle, Melanie A Kimm, Felix K Kopp, Loic Boussel, Ewald Roessl, Franz Pfeiffer, Ernst J Rummeny, Roland Proksa, Philippe Douek, Peter B Noël
OBJECTIVES: After endovascular aortic repair (EVAR), discrimination of endoleaks and intra-aneurysmatic calcifications within the aneurysm often requires multiphase computed tomography (CT). Spectral photon-counting CT (SPCCT) in combination with a two-contrast agent injection protocol may provide reliable detection of endoleaks with a single CT acquisition. METHODS: To evaluate the feasibility of SPCCT, the stent-lined compartment of an abdominal aortic aneurysm phantom was filled with a mixture of iodine and gadolinium mimicking enhanced blood...
February 19, 2018: European Radiology
Richard L Hallett, Brant W Ullery, Dominik Fleischmann
Abdominal aortic aneurysm (AAA) is a relatively common, potentially life-threatening disorder. Rupture of AAA is potentially catastrophic with high mortality. Intervention for AAA is indicated when the aneurysm reaches 5.0-5.5 cm or more, when symptomatic, or when increasing in size > 10 mm/year. AAA can be accurately assessed by cross-sectional imaging including computed tomography angiography and magnetic resonance angiography. Current options for intervention in AAA patients include open surgery and endovascular aneurysm repair (EVAR), with EVAR becoming more prevalent over time...
February 19, 2018: Abdominal Radiology
Jun Hayashi, Tetsuro Uchida, Azumi Hamasaki, Atsushi Yamashita, Ken Nakamura, Kimihiro Kobayashi, Mitsuaki Sadahiro
An 84-year-old man with chronic obstructive pulmonary disease (COPD) was referred to our institution for further treatment of severe swelling of the left lower extremity. The left iliac vein was compressed by the abdominal aortic aneurysm and a right common iliac arterial aneurysm measuring 62 mm and 45 mm in diameter and was partially thrombosed. Multiple pulmonary artery embolisms were also noted. Endovascular repair of the abdominal aortic aneurysm and the right common iliac arterial aneurysm was performed because of his respiratory dysfunction...
February 16, 2018: Annals of Thoracic and Cardiovascular Surgery
Zhidong Zhang, Kai Liang, Gangqiang Zou, Xiaosan Chen, Shuaitao Shi, Guoquan Wang, Kewei Zhang, Kun Li, Shuiting Zhai
The aim of this study was to identify abdominal aortic aneurysms (AAA)-associated miR-155 contributing to AAA pathology by regulating macrophage-mediated inflammation. Angiotensin II (AngII)-infused apolipoprotein E-deficient (ApoE-/-) mice and THP-1 cells model of miR-155 over-expression and deficiency were used in the experiments. The expression of miR-155 was detected by quantitative reverse transcription polymerase chain reaction (qRT-PCR). Cytokines were evaluated using enzyme-linked immunoabsorbent assay (ELISA)...
February 19, 2018: Bioscience Reports
Mehtab Ahmad, Sahithi Kuravi, James Hodson, G Ed Rainger, Gerard B Nash, Rajiv K Vohra, Andrew W Bradbury
OBJECTIVE/BACKGROUND: In a pilot study, a relationship between abdominal aortic aneurysm (AAA) diameter and serum interleukin (IL)-1α levels was reported, and that endothelial cell (EC) activation in vitro in response to serum from patients with AAA was blocked by anti-IL-1α antibodies. The aim of the present study was to further investigate the relationship between serum IL-1α and asymptomatic infrarenal AAA size, morphology, and growth rates. METHODS: Serum IL-1α was measured using enzyme linked immunosorbent assay in 101 patients with asymptomatic, infrarenal AAA and related to aneurysm size, morphology, and growth rates...
February 16, 2018: European Journal of Vascular and Endovascular Surgery
Christina Villard, Rebecka Hultgren
OBJECTIVE: Abdominal aortic aneurysm (AAA) predominantly affects an elderly male population. Even so, AAA appears more detrimental in women, who experience a higher risk of aneurysm rupture and a worse outcome after surgery than men. Why women are privileged from yet are worse off once affected has been attributed to an effect of sex hormones. This review summarizes the knowledge of sex differences in AAA and addresses the changes in the aneurysm wall from a gender perspective. METHOD: Standard reporting guidelines set by the PRISMA Group were followed to identify studies examining AAA from a gender perspective...
March 2018: Maturitas
Yi-Ting Lin, Hsuan-Ju Chen, Pei-Chun Chen, Fung-Chang Sung
Studies evaluating the risk of peripheral arterial disease (PAD) in patients with abdominal aortic aneurysm (AAA) are limited. We used insurance claims data of Taiwan to establish a cohort of 6590 patients with AAA newly diagnosed from 2000 to 2008 and 6590 controls without AAA matched by propensity score. The subsequent incidence density rates of PAD were estimated in both cohorts by the end of 2011, and the AAA cohort to the non-AAA cohort hazard ratios (HRs) of PAD were calculated using Cox proportional hazards models...
January 1, 2018: Angiology
B Čertík, V Třeška, J Moláček, M Čechura, R Šulc, K Houdek
INTRODUCTION: At most vascular surgery departments, transperitoneal approach predominates in resections of the aortic aneurysms. For difficult reconstructions of the aorta in the visceral segment, a left flank retroperitoneal approach is used most frequently. METHOD: The authors retrospectively evaluate the left retroperitoneal approach in the management of abdominal aortic aneurysms during a 10-year period. From the total number of 445 operated patients, the left-sided retroperitoneal approach was used in 23 cases...
2018: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
Moritz Lindquist Liljeqvist, Angela Silveira, Rebecka Hultgren, Siw Frebelius, Mariette Lengquist, Jan Engström, T Christian Gasser, Per Eriksson, Joy Roy
BACKGROUND: The intraluminal thrombi (ILT) of abdominal aortic aneurysms (AAA) contain neutrophils, which can secrete elastase. We evaluated whether plasma neutrophil elastase-derived cross-linked fibrin degradation products (E-XDP) could reveal the presence, size and mechanical stress of AAAs and its ILTs. METHODS: E-XDP and D-dimer were measured in plasma from 37 male patients with AAA and 42 male controls. The ILT volumes of the AAAs and any coexisting aneurysms could be measured in 29 patients and finite element analysis was performed to estimate mechanical stress of the ILT...
February 2018: Thrombosis and Haemostasis
Takahiro Shoji, Takehiko Tarui, Takashi Igarashi, Yuki Mochida, Hiroyuki Morinaga, Yasuhiko Miyakuni, Yoshitaka Inoue, Yasuhiko Kaita, Hiroshi Miyauchi, Yoshihiro Yamaguchi
BACKGROUND: Bleeding from hemorrhagic shock can be immediately controlled by blocking the proximal part of the hemorrhagic point using either resuscitative thoracotomy for aortic cross-clamping or insertion of a large-caliber (10-14Fr) resuscitative endovascular balloon occlusion of the aorta (REBOA) device via the femoral artery. However, such methods are very invasive and have various complications. With recent progress in endovascular treatment, a low-profile REBOA device (7Fr) has been developed...
February 10, 2018: Journal of Emergency Medicine
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