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Journal of Vascular Surgery

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https://www.readbyqxmd.com/read/28285932/calf-raise-exercise-increases-walking-performance-in-patients-with-intermittent-claudication
#1
Michel Van Schaardenburgh, Martin Wohlwend, Øivind Rognmo, Erney Mattsson
BACKGROUND: Symptoms of intermittent claudication (IC) are improved by exercise. The improvement might be secondary to increased blood perfusion or increased muscle mitochondrial capacity. Ischemia followed by reperfusion, also named preconditioning, is known to stimulate the mitochondria. We focused on a calf raise exercise inducing preconditioning in the calf muscle of patients with IC. We hypothesized that 8 weeks of this exercise would increase walking performance and mitochondrial capacity without a change in blood flow...
March 9, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28285931/flow-and-wall-shear-stress-characterization-after-endovascular-aneurysm-repair-and-endovascular-aneurysm-sealing-in-an-infrarenal-aneurysm-model
#2
Johannes T Boersen, Erik Groot Jebbink, Michel Versluis, Cornelis H Slump, David N Ku, Jean-Paul P M de Vries, Michel M P J Reijnen
BACKGROUND: Endovascular aneurysm repair (EVAR) with a modular endograft has become the preferred treatment for abdominal aortic aneurysms. A novel concept is endovascular aneurysm sealing (EVAS), consisting of dual endoframes surrounded by polymer-filled endobags. This dual-lumen configuration is different from a bifurcation with a tapered trajectory of the flow lumen into the two limbs and may induce unfavorable flow conditions. These include low and oscillatory wall shear stress (WSS), linked to atherosclerosis, and high shear rates that may result in thrombosis...
March 9, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28279526/applicability-and-midterm-results-of-branch-cuff-closure-with-vascular-plug-in-branched-endovascular-repair-for-thoracoabdominal-aortic-aneurysms
#3
Kiattisak Hongku, Timothy Resch, Björn Sonesson, Thorarinn Kristmundsson, Nuno V Dias
OBJECTIVE: This study assessed the applicability and outcomes of the closure of unused cuffs in branched endovascular aneurysm repair (b-EVAR) of thoracoabdominal aortic aneurysm. METHODS: We reviewed b-EVAR procedures at a tertiary referral center to identify patients who underwent incomplete branching and needed closure of the unused branch cuffs. An electronic database and intraoperative and follow-up imaging studies were reviewed to assess technical applicability and outcomes...
March 6, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28274755/semiautomatic-quantification-of-carotid-plaque-volume-with-three-dimensional-ultrasound-imaging
#4
Amir A Khan, Christian Koudelka, Carly Goldstein, Limin Zhao, John Yokemick, Moira Dux, Siddhartha Sikdar, Brajesh K Lal
OBJECTIVE: Vessel wall volume (VWV) assessed by three-dimensional duplex ultrasound (3DUS) imaging provides a more comprehensive measure of plaque burden than conventional two-dimensional measures of diameter stenosis. We previously demonstrated that manual outlining of the arterial lumen-intima boundary and outer wall boundary can be performed reliably on images obtained with a commercially available 3D-DUS transducer. Manual segmentation, however, is time consuming (∼45 minutes), limiting its clinical translation...
March 5, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28274754/noninvasive-characterization-of-carotid-plaque-strain
#5
Amir A Khan, Siddhartha Sikdar, Thomas Hatsukami, Juan Cebral, Michael Jones, John Huston, George Howard, Brajesh K Lal
OBJECTIVE: Current risk stratification of internal carotid artery plaques based on diameter-reducing percentage stenosis may be unreliable because ischemic stroke results from plaque disruption with atheroembolization. Biomechanical forces acting on the plaque may render it vulnerable to rupture. The feasibility of ultrasound-based quantification of plaque displacement and strain induced by hemodynamic forces and their relationship to high-risk plaques have not been determined. We studied the feasibility and reliability of carotid plaque strain measurement from clinical B-mode ultrasound images and the relationship of strain to high-risk plaque morphology...
March 5, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28274753/results-for-primary-bypass-versus-primary-angioplasty-stent-for-lower-extremity-chronic-limb-threatening-ischemia
#6
Jeremy D Darling, John C McCallum, Peter A Soden, Lindsey Korepta, Raul J Guzman, Mark C Wyers, Allen D Hamdan, Marc L Schermerhorn
BACKGROUND: Long-term results comparing percutaneous transluminal angioplasty with or without stenting (PTA/S) and open surgical bypass for chronic limb-threatening ischemia (CLTI) in patients who have had no prior intervention are lacking. METHODS: All patients undergoing a first-time lower extremity revascularization for CLTI by vascular surgeons at our institution from 2005 to 2014 were retrospectively reviewed. Outcomes included perioperative complications, wound healing, restenosis, primary patency, reintervention, major amputation, RAS events (ie, reintervention, major amputation, or stenosis), and mortality...
March 5, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28274752/a-novel-chronic-advanced-stage-abdominal-aortic-aneurysm-murine-model
#7
Guanyi Lu, Gang Su, John P Davis, Basil Schaheen, Emily Downs, R Jack Roy, Gorav Ailawadi, Gilbert R Upchurch
OBJECTIVE: The purpose of this study was to establish a reliable, chronic model of abdominal aortic aneurysm (AAA). METHODS: Wild-type 8-week-old C56BL/6 male mice (n = 120) were equally divided into three groups: (1) BAPN group: 0.2% 3-aminopropionitrile fumarate salt (BAPN) drinking water was provided to mice 2 days before surgery until the end of study. Sham aneurysm induction surgery was performed using 5 μL of heat deactivated elastase. (2) Elastase group: mice were given regular drinking water without BAPN...
March 5, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28274751/predictors-of-early-aortic-neck-dilatation-after-endovascular-aneurysm-repair-with-endoanchors
#8
Apostolos K Tassiopoulos, Spyridon Monastiriotis, William D Jordan, Bart E Muhs, Kenneth Ouriel, Jean Paul De Vries
OBJECTIVE: Dilatation of the aorta within the proximal neck after endovascular aneurysm repair (EVAR) can be associated with late endoleaks and migration. This study was designed to identify predictors of early neck dilation in patients undergoing EVAR with Heli-FX EndoAnchors (Medtronic, Santa Rosa, Calif) measured perioperatively to 1 year at different longitudinal levels of neck length. METHODS: The study group of Aneurysm Treatment Using the Heli-FX Aortic Securement System (ANCHOR) comprises 257 consecutive patients prospectively enrolled between April 2012 and September 2014 undergoing EVAR with Heli-FX EndoAnchor implantation at 38 investigational sites...
March 5, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28274750/the-society-for-vascular-surgery-wound-ischemia-and-foot-infection-wifi-classification-system-predicts-wound-healing-but-not-major-amputation-in-patients-with-diabetic-foot-ulcers-treated-in-a-multidisciplinary-setting
#9
Nestoras Mathioudakis, Caitlin W Hicks, Joseph K Canner, Ronald L Sherman, Kathryn F Hines, Ying W Lum, Bruce A Perler, Christopher J Abularrage
OBJECTIVE: The Society for Vascular Surgery Wound, Ischemia, and foot Infection (WIfI) threatened limb classification has been shown to correlate well with risk of major amputation and time to wound healing in heterogeneous diabetic and nondiabetic populations. Major amputation continues to plague the most severe stage 4 WIfI patients, with 1-year amputation rates of 20% to 64%. Our aim was to determine the association between WIfI stage and wound healing and major amputation among patients with diabetic foot ulcers (DFUs) treated in a multidisciplinary setting...
March 5, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28274749/plasma-fibrinogen-level-as-a-potential-predictor-of-hemorrhagic-complications-after-catheter-directed-thrombolysis-for-peripheral-arterial-occlusions
#10
REVIEW
Michiel H F Poorthuis, Eelco C Brand, Constantijn E V B Hazenberg, Roger E G Schutgens, Jan Westerink, Frans L Moll, Gert J de Borst
BACKGROUND: The benefit of catheter-directed thrombolysis for peripheral arterial occlusions is limited by hemorrhagic complications. Plasma fibrinogen level (PFL) has been suggested as a predictor of these hemorrhagic complications, but the accurateness of prediction is unknown. We summarized the available evidence on the predictive value of PFL for hemorrhagic complications after catheter-directed thrombolysis for acute or subacute peripheral native artery or arterial bypass occlusions...
March 5, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28268109/the-incidence-and-fate-of-endoleaks-vary-between-ruptured-and-elective-endovascular-abdominal-aortic-aneurysm-repair
#11
Adam A Quinn, Manish Mehta, Mehdi J Teymouri, Megan E Keenan, Philip S K Paty, Yi Zhou, Benjamin B Chang, Paul Feustel
BACKGROUND: The number of ruptured abdominal aortic aneurysm (r-AAA) patients who are treated by endovascular means is increasing as ruptured endovascular aneurysm repair (r-EVAR) enters the mainstream. However, even today, data on the incidence and behavior of endoleaks after r-EVAR are scarce. This study analyzed whether endoleaks behave differently after EVAR for rupture vs elective AAA repair. METHODS: From 2002 to 2013, there were 2052 patients who underwent EVAR for treatment of rupture (n = 166 [8...
March 4, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28268108/relationship-between-clinical-outcomes-and-vessel-size-in-endovascular-therapy-for-femoropopliteal-lesions
#12
Seiichi Hiramori, Yoshimitsu Soga, Osamu Iida, Kenji Suzuki, Keisuke Hirano, Daizo Kawasaki, Yoshiaki Shintani, Kenji Ando
OBJECTIVE: We investigated the relationship between the outcomes of endovascular therapy (EVT) for femoropopliteal (FP) lesions and vessel diameter. Several studies have reported a relationship between the outcome of EVT for FP lesions and lesion characteristics. However, the relationship with vessel diameter has not been explored. METHODS: We retrospectively analyzed 2656 patients with 3340 de novo FP lesions (mean age, 73.9 ± 9 years; 70% male) who underwent EVT from January 2004 to December 2011...
March 4, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28268107/prosthetic-bypass-for-restenosis-after-endarterectomy-or-stenting-of-the-carotid-artery
#13
Giulio Illuminati, Romain Belmonte, Fabrice Schneider, Giulia Pizzardi, Francesco G Calió, Jean-Baptiste Ricco
OBJECTIVE: The objective of this study was to evaluate the results of prosthetic carotid bypass (PCB) with polytetrafluoroethylene (PTFE) grafts as an alternative to carotid endarterectomy (CEA) in treatment of restenosis after CEA or carotid artery stenting (CAS). METHODS: From January 2000 to December 2014, 66 patients (57 men and 9 women; mean age, 71 years) presenting with recurrent carotid artery stenosis ≥70% (North American Symptomatic Carotid Endarterectomy Trial [NASCET] criteria) were enrolled in a prospective study in three centers...
March 4, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28268106/right-brachial-access-is-safe-for-branched-endovascular-aneurysm-repair-in-complex-aortic-disease
#14
Beatrice Fiorucci, Tilo Kölbel, Fiona Rohlffs, Franziska Heidemann, Sebastian Eike Debus, Nikolaos Tsilimparis
BACKGROUND: The risk of perioperative cerebrovascular events in endovascular repair of thoracic and thoracoabdominal aneurysms is reported from 2% to 15%. The unavoidable use of an upper extremity access during branched endovascular aneurysm repair (b-EVAR) may play a role in embolic brain injuries. For this reason, some advocate the use of a left-sided upper access to avoid crossing the origin of supra-aortic vessels. However, the assumption that right brachial access has a higher risk for stroke during b-EVAR has not been confirmed in the literature...
March 4, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28259570/clinical-significance-of-mesenteric-arterial-collateral-circulation-in-patients-with-celiac-artery-compression-syndrome
#15
André S van Petersen, Jeroen J Kolkman, Dick G Gerrits, Job van der Palen, Clark J Zeebregts, Robert H Geelkerken
OBJECTIVE: Although extensive collateral arterial circulation will prevent ischemia in most patients with stenosis of a single mesenteric artery, mesenteric ischemia may occur in these patients, for example, in patients with celiac artery compression syndrome (CACS). Variation in the extent of collateral circulation may explain the difference in clinical symptoms and variability in response to therapy; however, evidence is lacking. The objective of the study was to classify the presence of mesenteric arterial collateral circulation in patients with CACS and to evaluate the relation with clinical improvement after treatment...
March 2, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28259579/association-between-daily-walking-and-antioxidant-capacity-in-patients-with-symptomatic-peripheral-artery-disease
#16
Andrew W Gardner, Polly S Montgomery, Yan D Zhao, Federico Silva-Palacios, Zoltan Ungvari, Anna Csiszar, William E Sonntag
OBJECTIVE: The primary aim of the study was to assess whether both the amount and pace of daily walking were associated with circulating antioxidant capacity in symptomatic patients with peripheral artery disease (PAD). METHODS: Community-based walking was measured in 244 men and women who were limited by symptomatic PAD during a 1-week period in which they wore an ankle-mounted step activity monitor. Patients were further characterized by circulating antioxidant capacity with the OxiSelect (Cell Biolabs Inc, San Diego, Calif) hydroxyl radical antioxidant capacity (HORAC) activity assay...
March 1, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28259578/impact-of-body-mass-index-and-gender-on-wound-complications-after-lower-extremity-arterial-surgery
#17
Dean J Arnaoutakis, Rebecca E Scully, Gaurav Sharma, Samir K Shah, C Keith Ozaki, Michael Belkin, Louis L Nguyen
OBJECTIVE: Wound complications (WCs) after lower extremity arterial surgery (LEAS) are common, resulting in readmissions and reinterventions. Whereas diabetes and obesity are known risk factors for WCs, gender-specific variability in body fat distribution (android vs gynoid) may drive differential risks of WCs after LEAS. We analyzed the independent and synergistic effects of gender and body mass index (BMI) on WCs. METHODS: We performed a retrospective review of prospectively collected data from a published, randomized, multicenter trial assessing the incidence of WCs (dehiscence, surgical site infections, seroma, and hematoma) after LEAS...
March 1, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28259577/outcomes-of-fenestrated-and-branched-endovascular-repair-of-complex-abdominal-and-thoracoabdominal-aortic-aneurysms
#18
Andres Schanzer, Jessica P Simons, Julie Flahive, Jonathan Durgin, Francesco A Aiello, Danielle Doucet, Robert Steppacher, Louis M Messina
BACKGROUND: More than 80% of infrarenal aortic aneurysms are treated by endovascular repair. However, adoption of fenestrated and branched endovascular repair for complex aortic aneurysms has been limited, despite high morbidity and mortality associated with open repair. There are few published reports of consecutive outcomes, inclusive of all fenestrated and branched endovascular repairs, starting from the inception of a complex aortic aneurysm program. Therefore, we examined a single center's consecutive experience of fenestrated and branched endovascular repair of complex aortic aneurysms...
March 1, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28259576/female-sex-independently-predicts-mortality-after-thoracic-endovascular-aortic-repair-for-intact-descending-thoracic-aortic-aneurysms
#19
Sarah E Deery, Katie E Shean, Grace J Wang, James H Black, Gilbert R Upchurch, Kristina A Giles, Virendra I Patel, Marc L Schermerhorn
OBJECTIVE: Whereas sex differences in the pathogenesis, presentation, and outcomes of repair for abdominal aortic aneurysms are well studied, less is known about sex differences after thoracic endovascular aortic repair (TEVAR). The goal of this study was to evaluate the association between sex and morbidity and mortality after TEVAR. METHODS: A retrospective review of all TEVARs in the Society for Vascular Surgery Vascular Quality Initiative (VQI) registry from 2011 to 2015 was conducted, excluding those with dissection, trauma, and rupture...
March 1, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28259575/google-maps-offers-a-new-way-to-evaluate-claudication
#20
Husain Khambati, Kim Boles, Prasad Jetty
BACKGROUND: Accurate determination of walking capacity is important for the clinical diagnosis and management plan for patients with peripheral arterial disease. The current "gold standard" of measurement is walking distance on a treadmill. However, treadmill testing is not always reflective of the patient's natural walking conditions, and it may not be fully accessible in every vascular clinic. The objective of this study was to determine whether Google Maps, the readily available GPS-based mapping tool, offers an accurate and accessible method of evaluating walking distances in vascular claudication patients...
March 1, 2017: Journal of Vascular Surgery
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