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https://www.readbyqxmd.com/read/28527930/outcomes-of-open-and-endovascular-lower-extremity-revascularization-in-active-smokers-with-advanced-peripheral-arterial-disease
#1
Samuel L Chen, Matthew D Whealon, Nii-Kabu Kabutey, Isabella J Kuo, Michael D Sgroi, Roy M Fujitani
OBJECTIVE: Concern over perioperative and long-term durability of lower extremity revascularizations among active smokers is a frequent deterrent for vascular surgeons to perform elective lower extremity revascularization. In this study, we examined perioperative outcomes of lower extremity endovascular (LEE) revascularization and open lower extremity bypass (LEB) in active smokers with intermittent claudication (IC) and critical limb ischemia (CLI). METHODS: Active smokers undergoing LEE or LEB from 2011 to 2014 were identified in the American College of Surgeons (ACS) National Surgical Quality Improvement Program (NSQIP) targeted vascular data set...
June 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28527350/bi-dimensional-variational-mode-decomposition-of-laser-speckle-contrast-imaging-data-a-clinical-approach-to-critical-limb-ischemia
#2
Anne Humeau-Heurtier, Pierre Abraham, Samir Henni
The number of patients suffering from peripheral arterial occlusive disease (PAOD) is growing worldwide. PAOD corresponds to an impairment of perfusion in the distal portion of some arteries that can generate critical limb ischemia. For some patients, the pathology leads to the necessity of amputation. PAOD may be diagnosed and studied with transcutaneous oxygen (tcpO2) measurements. However, the tcpO2 technique is a contact technique: probes have to be positioned on the limb, which may be impossible in case of ulcers and can lead to infection risks...
May 13, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28525674/continuous-hemoadsorption-with-a-cytokine-adsorber-during-sepsis-a-review-of-the-literature
#3
Khosrow S Houschyar, Malcolm N Pyles, Susanne Rein, Ina Nietzschmann, Dominik Duscher, Zeshaan N Maan, Kristian Weissenberg, Hubertus M Philipps, Catharina Strauss, Beate Reichelt, Frank Siemers
Sepsis is a well-recognized healthcare issue worldwide, ultimately resulting in significant mortality, morbidity and resource utilization during and after critical illness. In its most severe form, sepsis causes multi-organ dysfunction that produces a state of critical illness characterized by severe immune dysfunction and catabolism. Sepsis induces the activation of complement factor via 3 pathways and the release of inflammatory cytokines such as tumor necrosis factor alpha (TNF-α) and interleukin-1beta (IL-1β), resulting in a systemic inflammatory response...
May 19, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28523890/handy-hints-about-raynaud-s-phenomenon-in-children-a-critical-review
#4
REVIEW
Donato Rigante, Michele Fastiggi, Francesco Ricci, Francesca D'Errico, Benedetta Bracci, Cristina Guerriero
Raynaud's phenomenon (RP) is a vasospastic disorder characterized by recurrent self-limited episodes of skin pallor, cyanosis, and hyperemia caused by paroxysmal spasms in the small arteries of the fingers and toes and can occur in any age group. Hands, feet, nose, ears, and nipples can be affected. The diagnosis is made clinically, assessing varying degrees of ischemia in the involved areas of skin, but this transient ischemia may also herald the onset of connective tissue disease. Investigation is recommended when RP starts in childhood to exclude an underlying autoimmune condition and close follow-up for its development...
May 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28520446/-diabetic-foot-syndrome-importance-of-calf-muscles-mr-spectroscopy-in-the-assessment-of-limb-ischemia-and-effect-of-revascularization
#5
Andrea Němcová, Michal Dubský, Alexandra Jirkovská, Petr Šedivý, Miloslav Drobný, Milan Hájek, Monika Dezortová, Robert Bém, Vladimíra Fejfarová, Anna Pyšná
AIM: The standard method for assessment of effect of revascularization in patients with diabetic foot (DF) and critical limb ischemia (CLI) is transcutaneous oxygen pressure (TcPO2). Phosphorus magnetic resonance spectroscopy (31P MRS) enables to evaluate oxidative muscle metabolism that could be impaired in patients with diabetes and its complications. The aim of our study was to compare MRS of calf muscle between patients with DF and CLI and healthy controls and to evaluate the contribution of MRS in the assessment of the effect of revascularization...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28518065/transient-middle-cerebral-artery-occlusion-model-of-neonatal-stroke-in-p10-rats
#6
Amara Larpthaveesarp, Fernando F Gonzalez
A number of animal models have been used to study hypoxic-ischemic injury, traumatic injury, global hypoxia, or permanent ischemia in both the immature and mature brain. Stroke occurs commonly in the perinatal period in humans, and transient ischemia-reperfusion is the most common form of stroke in neonates. The reperfusion phase is a critical component of injury progression, which occurs over a period of days to weeks, and of the endogenous response to injury. This postnatal day 10 (p10) rat model of transient middle cerebral artery occlusion (tMCAO) creates a unilateral, non-hemorrhagic focal ischemia-reperfusion injury that can be utilized to study the mechanisms of focal injury and repair in the full-term-equivalent brain...
April 21, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28511618/midterm-results-of-low-profile-stents-to-treat-atherosclerotic-iliac-artery-disease
#7
Nicola Troisi, Leonardo Ercolini, Emiliano Chisci, Piefrancesco Frosini, Enrico Barbanti, Stefano Michelagnoli
PURPOSE: To evaluate the safety and effectiveness of low-profile 4-F stents for the treatment of atherosclerotic iliac artery lesions. METHODS: Between January 2009 and December 2015, 63 patients (mean age 69.3 years; 42 men) received low-profile stents (Astron Pulsar or Pulsar-18) at the discretion of the operator to treat iliac artery occlusive disease. The majority of patients (40, 63.5%) had critical limb ischemia; 36 of 82 lesions were total occlusions. All procedures were performed with 4-F equipment...
June 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28508349/the-contemporary-role-of-stents-and-angioplasty-for-the-treatment-of-infrapopliteal-disease-in-critical-limb-ischemia
#8
REVIEW
Tarek A Hammad, Anand Prasad
PURPOSE OF REVIEW: Critical limb ischemia (CLI) is associated with significant morbidity, mortality, and increased health care expenses. Revascularization has a central role in the treatment of CLI. Following publication of BASIL (bypass versus angioplasty in severe ischemia of the leg) trial a decade ago, an "endovascular first" approach had gained momentum and the technologies available for endovascular therapy have exponentially increased. Both the development of technology and technique, highlighted in this review, have allowed operators to treat complex infrapopliteal lesions which are central to CLI pathology...
July 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28507873/inferior-limb-salvage-by-combined-free-tissue-transfer-and-the-crane-principle-revisited
#9
Alessandro Thione, Pedro C Cavadas
Aggressive treatment of ischemia of the lower extremities has decreased the number of amputations in both diabetic and nondiabetic patients; combined vascular reconstruction and microvascular free-flap transfer has been used to improve distal perfusion and cover large tissue defects caused by the critical limb ischemia during the past 30 years. We present our experience with a 71-year-old diabetic patient who underwent revascularization with a vascular bypass and a simultaneous microvascular flap reconstruction for limb salvage after domestic trauma...
April 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28504650/neutrophil-derived-s100-calcium-binding-proteins-a8-a9-promote-reticulated-thrombocytosis-and-atherogenesis-in-diabetes
#10
Michael J Kraakman, Man K S Lee, Annas Al-Sharea, Dragana Dragoljevic, Tessa J Barrett, Emilie Montenont, Debapriya Basu, Sarah Heywood, Helene L Kammoun, Michelle Flynn, Alexandra Whillas, Nordin M J Hanssen, Mark A Febbraio, Erik Westein, Edward A Fisher, Jaye Chin-Dusting, Mark E Cooper, Jeffrey S Berger, Ira J Goldberg, Prabhakara R Nagareddy, Andrew J Murphy
Platelets play a critical role in atherogenesis and thrombosis-mediated myocardial ischemia, processes that are accelerated in diabetes. Whether hyperglycemia promotes platelet production and whether enhanced platelet production contributes to enhanced atherothrombosis remains unknown. Here we found that in response to hyperglycemia, neutrophil-derived S100 calcium-binding proteins A8/A9 (S100A8/A9) interact with the receptor for advanced glycation end products (RAGE) on hepatic Kupffer cells, resulting in increased production of IL-6, a pleiotropic cytokine that is implicated in inflammatory thrombocytosis...
May 15, 2017: Journal of Clinical Investigation
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
#11
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/28502548/lifelong-limb-preservation-a-patient-centered-description-of-lower-extremity-arterial-reconstruction-outcomes
#12
Katie E Shean, Peter A Soden, Marc L Schermerhorn, Sara L Zettervall, Sarah E Deery, Jeremy D Darling, Allen Hamdan, Frank W LoGerfo
BACKGROUND: Life expectancy is short for patients with critical limb ischemia (CLI), many of whom may fear amputation more than death. In light of the reduced life expectancy of these patients, the traditional 5-year freedom from amputation (FFA) statistic may not accurately address their concern. We developed a more relevant patient-centered calculation of major amputation risk during a patient's remaining lifetime to better answer the question, Will I ever lose my leg? METHODS: We identified all limbs undergoing first-time intervention for CLI in a large institutional database from 2005 to 2013...
May 11, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28502546/cryopreserved-saphenous-vein-as-a-last-ditch-conduit-for-limb-salvage
#13
Leigh Ann O'Banion, Bian Wu, Charles M Eichler, Linda M Reilly, Michael S Conte, Jade S Hiramoto
OBJECTIVE: In patients lacking autogenous vein suitable for infrainguinal bypass, cryopreserved saphenous vein (CSV) allograft (CryoLife, Inc, Kennesaw, Ga) may be an acceptable alternative. The purpose of this study was to examine outcomes of CSV conduit for infrainguinal revascularization. METHODS: Between February 2008 and August 2015, 70 patients underwent infrainguinal bypass grafts in 73 limbs using CSV. All patients lacked suitable arm or leg vein. Demographic data and patient outcomes were retrospectively collected using electronic medical records...
May 11, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28499802/ampk-activates-foxo3a-and-promotes-neuronal-apoptosis-in-the-developing-rat-brain-during-the-early-phase-after-hypoxia-ischemia
#14
Deyuan Li, Lili Luo, Min Xu, Jinlin Wu, Lina Chen, Jinhui Li, Zhongqiang Liu, Guoyan Lu, Yang Wang, Lina Qiao
AMP-activated protein kinase (AMPK) is a key metabolic and stress sensor/effector. Few investigations have been performed to study the role of AMPK in developing rat brain with hypoxia-ischemia (HI). Forkhead transcriptional factor (FOXO3a) has been revealed to be a critical effector of AMPK-mediated celluar apoptosis. However, it is not clear whether AMPK/FOXO3a pathway is involved in neuronal apoptosis in the developing rat brain after HI. In this study, we generated hypoxia-ischemia brain damage (HIBD) model using postnatal day 7 rats...
May 10, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28496514/anomalous-intercoronary-communication-with-unidirectional-flow-in-the-absence-of-obstructive-coronary-artery-disease-a-case-report
#15
Arash Gholoobi, Mohammad Vojdanparast
Large intercoronary communications in the absence of obstructive coronary artery disease constitute a very rare coronary artery anomaly in which there is a readily visible connection between the 2 coronary arteries with a unidirectional or bidirectional blood flow; consequently, this anomaly may be misinterpreted as a functioning collateral vessel, indicative of an unrecognized proximal coronary artery occlusion. In contrast to collateral vessels that are seen in the presence of critical coronary artery stenosis and total occlusions, these arterial communications are vessels that are single, extramural, straight, and large in diameter...
October 3, 2016: Journal of Tehran Heart Center
https://www.readbyqxmd.com/read/28495537/impact-of-nutritional-state-on-critical-limb-ischemia-early-outcomes-denucriticc-study
#16
Lucie Salomon du Mont, Betty Leclerc, Marie-Catherine Morgant, Guillaume Besch, Aline Laubriet, Eric Steinmetz, Simon Rinckenbach
INTRODUCTION: Despite current progress, the prognosis of critical limb ischemia (CLI) remains poor. The ageing of the population, the increasing prevalence of diabetes mellitus, and the stability of tabacco use will increase the prevalence of CLI. CLI patients have risk factors for malnutrition and the impact of malnutrition on morbidity and mortality has been demonstrated in the general population. However, we have little information on the consequences of the consequences of undernutrition in the CLI population...
May 8, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28495447/characterization-of-gene-expression-associated-with-the-adaptation-of-the-nematode-c-elegans-to-hypoxia-and-reoxygenation-stress-reveals-an-unexpected-function-of-the-neuroglobin-glb-5-in-innate-immunity
#17
Binyamin Zuckerman, Zohar Abergel, Veronica Zelmanovich, Leonor Romero, Rachel Abergel, Leonid Livshits, Yoav Smith, Einav Gross
Oxygen (O2) is a double-edged sword to cells, for while it is vital for energy production in all aerobic animals and insufficient O2 (hypoxia) can lead to cell death, the reoxygenation of hypoxic tissues may trigger the generation of reactive oxygen species (ROS) that can destroy any biological molecule. Indeed, both hypoxia and hypoxia-reoxygenation (H/R) stress are harmful, and may play a critical role in the pathophysiology of many human diseases, such as myocardial ischemia and stroke. Therefore, understanding how animals adapt to hypoxia and H/R stress is critical for developing better treatments for these diseases...
May 8, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28493997/adenosine-a1-receptor-activation-increases-myocardial-protein-s-nitrosothiols-and-elicits-protection-from-ischemia-reperfusion-injury-in-male-and-female-hearts
#18
Qin Shao, Kevin M Casin, Nathan Mackowski, Elizabeth Murphy, Charles Steenbergen, Mark J Kohr
Nitric oxide (NO) plays an important role in cardioprotection, and recent work from our group and others has implicated protein S-nitrosylation (SNO) as a critical component of NO-mediated protection in different models, including ischemic pre- and post-conditioning and sex-dependent cardioprotection. However, studies have yet to examine whether protein SNO levels are similarly increased with pharmacologic preconditioning in male and female hearts, and whether an increase in protein SNO levels, which is protective in male hearts, is sufficient to increase baseline protection in female hearts...
2017: PloS One
https://www.readbyqxmd.com/read/28488337/affinity-immobilization-of-vegf-on-laminin-porous-sponge-enhances-angiogenesis-in-the-ischemic-brain
#19
Mio Oshikawa, Kei Okada, Naoko Kaneko, Kazunobu Sawamoto, Itsuki Ajioka
Ischemic brain stroke is caused by blood flow interruption, leading to focal ischemia, neuron death, and motor, sensory, and/or cognitive dysfunctions. Angiogenesis, neovascularization from existing blood vessel, is essential for tissue growth and repair. Proangiogenic therapy for stroke is promising for preventing excess neuron death and improving functional recovery. Vascular endothelial growth factor (VEGF) is a critical factor for angiogenesis by promoting the proliferation, the survival, and the migration of endothelial cells...
May 10, 2017: Advanced Healthcare Materials
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
#20
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
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