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chronic limb ischemia

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https://www.readbyqxmd.com/read/28618138/expansion-of-umbilical-cord-blood-aldehyde-dehydrogenase-expressing-cells-generates-myeloid-progenitor-cells-that-stimulate-limb-revascularization
#1
David M Putman, Tyler T Cooper, Stephen E Sherman, Ayesh K Seneviratne, Mark Hewitt, Gillian I Bell, David A Hess
Uncompromised by chronic disease-related comorbidities, human umbilical cord blood (UCB) progenitor cells with high aldehyde dehydrogenase activity (ALDH(hi) cells) stimulate blood vessel regeneration after intra-muscular transplantation. However, implementation of cellular therapies using UCB ALDH(hi) cells for critical limb ischemia, the most severe form of severe peripheral artery disease, is limited by the rarity (<0.5%) of these cells. Our goal was to generate a clinically-translatable, allogeneic cell population for vessel regenerative therapies, via ex vivo expansion of UCB ALDH(hi) cells without loss of pro-angiogenic potency...
June 15, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28599922/vitamin-d-improves-functional-outcomes-in-neonatal-hypoxic-ischemic-male-rats-treated-with-n-acetylcysteine-and-hypothermia
#2
Danielle W Lowe, Jamie L Fraser, Laura Grace Rollins, Jessica Bentzley, Xingju Nie, Renee Martin, Inderjit Singh, Dorothea Jenkins
Hypothermia treatment neuroprotects approximately 50% of neonates who present with moderate to severe hypoxic ischemic encephalopathy (HIE). N-acetylcysteine (NAC), a potent antioxidant, is neuroprotective in combination with hypothermia in neonatal hypoxia-ischemia (HI) female rats, but less protective in males. Vitamin D is a neurosteroid, which may provide immunomodulation and improve outcomes for both sexes. We investigated the efficacy of this combination of drugs with hypothermia after severe HI, as well as potential mechanisms of vitamin D effects in the transition to chronic inflammation...
June 6, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28595884/chronic-limb-ischemia-ischemia-in-the-extreme
#3
EDITORIAL
Ronald P Caputo, Lawrence A Garcia
No abstract text is available yet for this article.
June 12, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28595481/retrograde-popliteal-access-to-percutaneous-peripheral-intervention-for-chronic-total-occlusion-of-superficial-femoral-arteries
#4
Mert Dumantepe
OBJECTIVE: The aim of this study is to present our initial experience with the use of the retrograde popliteal artery access in patients with chronic total occlusions of superficial femoral artery (SFA). METHOD: From July 2012 to May 2014, a total of 28 patients (20 men, mean age 61.2 ± 11.5 years) with total occlusion of the SFA and good distal runoff were treated with percutaneous atherectomy, balloon angioplasty, and stenting (mean length 165.3 ± 57.5 mm, range 72-336 mm)...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28561381/estrogen-dependent-efficacy-of-limb-ischemic-preconditioning-in-female-rats
#5
Levente Pócs, Ágnes Janovszky, Dénes Garab, Gabriella Terhes, Imre Ocsovszki, József Kaszaki, Mihály Boros, József Piffkó, Andrea Szabó
Our aim was to examine the effects of ischemic preconditioning (IPC) on the local periosteal and systemic inflammatory consequences of hindlimb ischemia-reperfusion (IR) in Sprague-Dawley rats with chronic estrogen deficiency (13 weeks after ovariectomy, OVX) in the presence and absence of chronic 17beta-estradiol supplementation (E2, 20 µg kg(-1) , 5 days/week for 5 weeks); sham-operated (non-OVX) animals served as controls. As assessed by intravital fluorescence microscopy, rolling and the firm adhesion of polymorphonuclear neutrophil leukocytes (PMNs) gave similar results in the Sham + IR and OVX + IR groups in the tibial periosteal microcirculation during the 3-h reperfusion period after a 60-min tourniquet ischemia...
May 31, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28550239/clinical-conditions-responsible-for-hyperviscosity-and-skin-ulcers-complications
#6
Gregorio Caimi, Baldassare Canino, Rosalia Lo Presti, Caterina Urso, Eugenia Hopps
In this brief review, we have examined some clinical conditions that result to be associated to an altered hemorheological profile and at times accompanied by skin ulcers. This skin condition may be observed in patients with the following condtions, such as primary polycythemic hyperviscosity (polycythemia, thrombocytemia) treated with hydroxyurea, primary plasma hyperviscosity (multiple myeloma, cryoglobulinemia, cryofibrinogenemia, dysfibrinogenemia, and connective tissue diseases), primary sclerocythemic hyperviscosity (hereditary spherocytosis, thalassemia, and sickle cell disease)...
May 19, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28506476/adherence-to-lipid-management-guidelines-is-associated-with-lower-mortality-and-major-adverse-limb-events-in-patients-undergoing-revascularization-for-chronic-limb-threatening-ischemia
#7
Thomas F X O'Donnell, Sarah E Deery, Jeremy D Darling, Katie E Shean, Murray A Mittleman, Gabrielle N Yee, Matthew R Dernbach, Marc L Schermerhorn
OBJECTIVE: The 2013 American College of Cardiology/American Heart Association lipid management guidelines recommend high-intensity statins for all patients ≤75 years old with chronic limb-threatening ischemia (CLTI) and moderate-intensity statins for CLTI patients >75 years old without contraindications or on dialysis, but these recommendations are based primarily on coronary and stroke data. We aimed to validate these guidelines in patients with CLTI and to assess current adherence to these recommendations...
May 12, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28502550/lower-extremity-computed-tomography-angiography-can-help-predict-technical-success-of-endovascular-revascularization-in-the-superficial-femoral-and-popliteal-artery
#8
Nathan K Itoga, Tanner Kim, Anna M Sailer, Dominik Fleischmann, Matthew W Mell
OBJECTIVE: Preprocedural computed tomography angiography (CTA) assists in evaluating vascular morphology and disease distribution and in treatment planning for patients with lower extremity peripheral artery disease (PAD). The aim of the study was to determine the predictive value of radiographic findings on CTA and technical success of endovascular revascularization of occlusions in the superficial femoral artery-popliteal (SFA-pop) region. METHODS: Medical records and available imaging studies were reviewed for patients undergoing endovascular intervention for PAD between January 2013 and December 2015 at a single academic institution...
May 11, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28496017/comparison-of-the-incidence-of-complications-and-secondary-surgical-interventions-necessary-in-patients-with-chronic-lower-limb-ischemia-treated-by-both-open-and-endovascular-surgeries
#9
Dariusz Janczak, Maciej Malinowski, Wojciech Bąkowski, Katarzyna Krakowska, Karol Marschollek, Paweł Marschollek, Mariusz Chabowski
BACKGROUND: Peripheral arterial disease (PAD) affects 3%-10% of the population before the age of 70 years and 15%-20% after that age.The aim of the study was to compare the incidence of complications and secondary interventions in patients who underwent each type of treatment. METHODS: We analyzed 734 medical records of the Department of Surgery at the 4th Military Teaching Hospital in Wroclaw, In total, 394 were operated on with open surgery; an endarterectomy (59...
May 11, 2017: Annals of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28488306/physician-initiated-first-in-human-clinical-study-using-a-novel-angiogenic-peptide-ag30-5c-for-patients-with-severe-limb-ulcers
#10
Hironori Nakagami, Toshifumi Yamaoka, Misa Hayashi, Atsushi Tanemura, Yasushi Takeya, Hitomi Kurinami, Ken Sugimoto, Ayumi Nakamura, Kazunori Tomono, Katsuto Tamai, Ichiro Katayama, Hiromi Rakugi, Yasufumi Kaneda
AIM: In patients with diabetes or ischemia, angiogenesis and infection control are required for chronic leg ulcers, which substantially impair patients' quality of life. We developed a novel functional peptide, named AG30/5C, with angiogenic and anti-microbial properties. Treatment with AG30/5C significantly accelerated the wound healing of full-thickness defects in mice. To evaluate the safety of AG30/5C in the treatment of leg ulcers, a physician-initiated clinical study was carried out...
May 10, 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/28488101/impact-of-chronic-renal-failure-on-safety-and-effectiveness-of-paclitaxel-eluting-stents-for-femoropopliteal-artery-disease-subgroup-analysis-from-zilver-ptx-post-market-surveillance-study-in-japan
#11
Yukihisa Ogawa, Hiroyoshi Yokoi, Takao Ohki, Kimihiko Kichikawa, Masato Nakamura, Kimihiro Komori, Shinsuke Nanto, Erin E O'Leary, Aaron E Lottes, Alan T Saunders, Michael D Dake
PURPOSE: Favorable long-term outcomes of the Zilver PTX drug-eluting stent (DES) in femoropopliteal lesions have been demonstrated. Chronic renal failure (CRF) has been shown to be a risk factor for restenosis and decreased limb salvage. The results of the DES in patients with CRF have not previously been reported. This study compares the results with the DES in patients with CRF and those without CRF. METHODS: This retrospective analysis from the Zilver PTX Japan Post-Market Surveillance Study included 321 patients with CRF and 584 patients without CRF...
May 9, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28483615/severe-mesenteric-ischemia-in-a-pregnant-woman-with-antiphospholipid-syndrome
#12
Andrea Padricelli, Anna Maria Giribono, Doriana Ferrara, Flavia Spalla, Umberto Bracale, Luca Del Guercio, Giuseppe Servillo, Carlo Ruotolo, Umberto Marcello Bracale
The antiphospholipid syndrome (APS), either primary or secondary form, is considered an autoimmune disease with presence of at least one clinical and one laboratory abnormalities as defined by The Sydney criteria. Clinical criteria include vascular thrombosis of venous, artery, small vessel in any organ and recurrent pregnancy pathologies. Mesenteric ischemia is a rare and threatening manifestation of APS. We herein report a case of 34-years old pregnant woman referred to our Emergency Room with thoracic and abdominal acute pain...
May 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28479452/cumulative-number-of-treatment-interventions-predicts-health-related-quality-of-life-in-patients-with-critical-limb-ischemia
#13
Matthew A Corriere, Matthew P Goldman, Ryan Barnard, Santiago Saldana, Jeanette M Stafford, Douglas Easterling, Edward H Ip, Gregory L Burke
INTRODUCTION: Health-related quality of life (QOL) is usually assessed after a defined interval following a single intervention, but critical limb ischemia (CLI) is a chronic condition where multiple interventions are often required over a patient's lifetime. We hypothesized that the impact of CLI treatment interventions on QOL is diminished in the setting of multiple previous interventions. To test this hypothesis, we performed a cross-sectional study evaluating associations between cumulative number of previous PAD treatment interventions and QOL adjusting for both comorbidity and disease severity...
May 4, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28471016/a-novel-lesion-crossing-technique-balloon-deployment-using-forcible-manner-badform-technique
#14
Keisuke Nakabayashi, Hiroshi Ando, Nobuhito Kaneko, Manabu Shiozaki, Daisuke Sunaga, Akihiro Matsui, Kazuhiko Tanaka, Minoru Shimizu
OBJECTIVES: We evaluated the efficacy and safety of a novel endovascular technique for crossing arterial lesions: The BAlloon Deployment using FORcible Manner (BADFORM) technique. BACKGROUND: Endovascular treatment (EVT) for peripheral artery disease has been widely adopted, and developments in device technology and techniques have resulted in acceptable success rates. However, it may be difficult to deliver devices even after wire externalization, especially in the presence of an extremely long chronic total occlusion or severely calcified lesion...
May 4, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28465288/thirty-day-readmissions-after-endovascular-or-surgical-therapy-for-critical-limb-ischemia-analysis-of-the-2013-2014-nationwide-readmissions-databases
#15
Dhaval Kolte, Kevin F Kennedy, Mehdi H Shishehbor, J Dawn Abbott, Sahil Khera, Peter A Soukas, Shafiq T Mamdani, Omar N Hyder, Douglas E Drachman, Herbert D Aronow
Background -Thirty-day readmission rates have gained increasing importance as a key quality metric. A significant number of patients are hospitalized for the management of critical limb ischemia (CLI), but limited data are available on the incidence, predictors, and causes of 30-day readmission after hospitalization for CLI. Methods -Hospitalizations for a primary diagnosis of CLI during which patients underwent endovascular or surgical therapy (revascularization and/or amputation) and were discharged alive were identified in the 2013-2014 Nationwide Readmissions Databases...
May 2, 2017: Circulation
https://www.readbyqxmd.com/read/28450103/regional-variation-in-outcomes-for-lower-extremity-vascular-disease-in-the-vascular-quality-initiative
#16
Peter A Soden, Sara L Zettervall, Katie E Shean, Ageliki G Vouyouka, Philip P Goodney, Joseph L Mills, John W Hallett, Marc L Schermerhorn
BACKGROUND: Increased focus has been placed on perioperative and long-term outcomes in the treatment of peripheral artery disease (PAD), both for purposes of quality improvement and for assessment of performance at a surgeon and institutional level. This study evaluates regional variation in outcomes after treatment for PAD within the Vascular Quality Initiative (VQI). By describing the variation in practice patterns and outcomes across regions, we hope that each regionally based quality group can select which areas are most important for them to focus on as they will have access to their regional data to compare...
April 24, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28422865/crystalglobulinemia-manifesting-as-chronic-arthralgia-and-acute-limb-ischemia-a-clinical-case-report
#17
Nobuya Abe, Tomoko Tomita, Miyuki Bohgaki, Hideki Kasahara, Takao Koike
RATIONALE: Crystalglobulinemia is a rare disease caused by monoclonal immunoglobulins, characterized by irreversible crystallization on refrigeration. It causes systemic symptoms including purpura, arthralgia, and vessel occlusive conditions to be exacerbated by exposure to cold. We report a patient with crystalglobulinemia associated with monoclonal gammopathy of undetermined significance (MGUS) manifesting as chronic arthralgia and recurrent acute arterial occlusion. PRESENTING CONCERNS: A 61-year-old man, who had been diagnosed with MGUS and who had arthralgia of unknown origin, presented with recurrent acute limb ischemia after surgical thromboembolectomy...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28421855/midterm-outcomes-after-infrapopliteal-interventions-in-patients-with-critical-limb-ischemia-based-on-the-tasc-ii-classification-of-below-the-knee-arteries
#18
Gagan D Singh, Ellen K Brinza, Justin Hildebrand, Stephen W Waldo, T Raymond Foley, John R Laird, Ehrin J Armstrong
PURPOSE: To analyze the relationship between the new TransAtlantic Inter-Society Consensus (TASC II) infrapopliteal classification and limb outcomes among patients with critical limb ischemia (CLI). METHODS: A single-center retrospective study was performed on 166 consecutive CLI patients (mean age 71 years; 113 men) undergoing endovascular treatment of 244 infrapopliteal lesions from 2006 to 2013. Patient, procedural, angiographic, and limb outcomes were compared for the new TASC A/B vs C/D classification for infrapopliteal lesions...
April 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28382271/acute-limb-ischemia-and-coronary-artery-disease-in-a-case-of-kimura-s-disease
#19
Woon Heo, Hee Jae Jun, Do Kyun Kang, Ho-Ki Min, Youn-Ho Hwang, Ji Yong Kim, Kyung Han Nam
Kimura disease (KD) is an immune-mediated chronic inflammatory disease of unknown etiology. KD has many complications associated with hypereosinophilia, including various forms of allergic reactions and eosinophilic lung disease. Additionally, hypereosinophilia is associated with hypercoagulability, which may lead to thromboembolic events. A 36-year-old man with KD presented with acute limb ischemia and coronary artery occlusion. He underwent thrombectomy, partial endarterectomy of both popliteal arteries, and coronary artery stent insertion...
April 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28366306/the-largpad-trial-phase-iia-evaluation-of-l-arginine-infusion-in-patients-with-peripheral-arterial-disease
#20
Vikram S Kashyap, Ryan O Lakin, Patricia Campos, Matthew Allemang, Ann Kim, Timur P Sarac, Alfred Hausladen, Jonathan S Stamler
OBJECTIVE: Endothelial function is improved by l-arginine (l-arg) supplementation in preclinical and clinical studies of mildly diseased vasculature; however, endothelial function and responsiveness to l-arg in severely diseased arteries is not known. Our objective was to evaluate the acute effects of catheter-directed l-arg delivery in patients with chronic lower extremity ischemia secondary to peripheral arterial disease. METHODS: The study enrolled 22 patients (45% male) with peripheral arterial disease (mean age, 62 years) requiring lower extremity angiography...
March 30, 2017: Journal of Vascular Surgery
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