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Peripheral arterial disease

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https://www.readbyqxmd.com/read/28229199/-coronary-artery-disease-interventional-and-operative-therapeutic-options-after-cardiac-arrest
#1
M Behnes, K Mashayekhi, M Borggrefe, I Akin
Coronary artery disease (CAD) represents a common structural cause for developing cardiac arrest in older patients, whereas in young adults cardiac arrest is more often caused by cardiomyopathies and cardiac channelopathies. A structural heart disease is known in almost 50% of patients prior to cardiac arrest. The present review outlines current interventional and operative therapeutic options for patients surviving cardiac arrest. The focus is on associations between epidemiological data on the incidence of malignant arrhythmias causing cardiac arrest depending on the presence or absence of CAD...
February 22, 2017: Herz
https://www.readbyqxmd.com/read/28229168/cd14-cd16-nonclassical-monocytes-are-associated-with-endothelial-dysfunction-in-patients-with-coronary-artery-disease
#2
Karol Urbanski, Dominik Ludew, Grzegorz Filip, Magdalena Filip, Agnieszka Sagan, Piotr Szczepaniak, Grzegorz Grudzien, Jerzy Sadowski, Barbara Jasiewicz-Honkisz, Tomasz Sliwa, Boguslaw Kapelak, Eilidh McGinnigle, Tomasz Mikolajczyk, Tomasz J Guzik
Endothelial dysfunction and inflammation are key mechanisms of vascular disease. We hypothesised that heterogeneity of monocyte subpopulations may be related to the development of vascular dysfunction in coronary artery disease (CAD). Therefore, we examined the relationships between monocyte subsets (CD14(++)CD16(-) "classical - Mon1", CD14(++)CD16(+) "intermediate - Mon2" and CD14(+)CD16(++) "nonclassical - Mon3"), endothelial function and risk factor profiles in 130 patients with CAD undergoing coronary artery bypass grafting...
February 23, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28228609/barriers-associated-with-door-to-balloon-delay-in-contemporary-japanese-practice
#3
Nobuhiro Ikemura, Mitsuaki Sawano, Yasuyuki Shiraishi, Ikuko Ueda, Hiroaki Miyata, Yohei Numasawa, Shigetaka Noma, Masahiro Suzuki, Yukihiko Momiyama, Taku Inohara, Kentaro Hayashida, Shinsuke Yuasa, Yuichiro Maekawa, Keiichi Fukuda, Shun Kohsaka
BACKGROUND: Door-to-balloon (DTB) time ≤90 min is an important quality indicator in the management of ST-elevation myocardial infarction (STEMI), but a considerable number of patients still do not meet this goal, particularly in countries outside the USA and Europe.Methods and Results:We analyzed 2,428 STEMI patients who underwent primary PCI ≤12 h of symptom onset who were registered in an ongoing prospective multicenter database (JCD-KiCS registry), between 2008 and 2013. We analyzed both the time trend in DTB time within this cohort in the registry, and independent predictors of delayed DTB time >90 min...
February 23, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28228367/blockade-of-hmgb1-preserves-vascular-homeostasis-and-improves-blood-perfusion-in-rats-of-acute-limb-ischemia-reperfusion
#4
Yang Liu, Changyou Zhou, Jianjun Jiang, Qingbo Su, Xiangjiu Ding
Acute limb ischemia is one of the most common peripheral arterial disease, while surgical restoration of blood flow often results in ischemia/reperfusion (I/R) injury. Our previous study revealed the inflammation intensity in arterial tissue, characterized by expression of high mobility group box protein 1 (HMGB1), was contrary to the fluctuation of hemodynamics in reperfusion limbs in a rat model. This study meant to clarify the role of HMGB1 during this process. Laser Doppler perfusion imaging evaluated limb hemodynamics in mean and max perfusion unit (PU)...
February 19, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28226726/guide-wire-detecting-using-a-modified-cascade-classifier-in-interventional-radiology
#5
Li Wang, Xiao-Liang Xie, Zhan-Jie Gao, Gui-Bin Bian, Zeng-Guang Hou, Li Wang, Xiao-Liang Xie, Zhan-Jie Gao, Gui-Bin Bian, Zeng-Guang Hou
Endovascular surgery is becoming a widespread procedure to treat cardiovascular diseases (CVDs) such as abdominal aortic aneurysm and peripheral artery disease. The guide-wire is a crucial surgical instrument inserted into vessels to offer guidance to physicians during the surgery. There are some approaches for tracking the guide-wire, most algorithms consist of two phases, namely, the initialization phase and the tracking phase. In the initialization phase, most algorithms use B-splines for modeling the guide-wire which requires manually annotated data...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225505/nonrevascularizable-buttock-claudication-improved-with-sildenafil-a-case-report
#6
Loukman Omarjee, Audrey Camarzana, Samir Henni, Pierre Abraham
RATIONALE: Sildenafil, a phosphodiesterase-5-inhibitor (PDE5i), could represent a new treatment in addition to the medical treatment and advice to walk in peripheral arterial disease (PAD). PATIENT CONCERNS AND DIAGNOSES: We report a case of a 62-year-old heavy smoker man who developed a buttock claudication and a severe walking limitation following an aorto-bi-femoral bypass in 1992. Since 2003, each year, he has been referred for investigation of bilateral buttock claudication on treadmill using transcutaneous oxygen pressure (tcpO2) measurement during exercise to argue for the vascular origin of the walking impairment...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28224974/differences-in-outcomes-in-patients-with-stable-coronary-artery-disease-managed-by-cardiologists-versus-non-cardiologists-the-international-prospective-clarify-registry
#7
Zofia Parma, Philippe Gabriel Steg, Nicola Greenlaw, Roberto Ferrari, Ian Ford, Kim Fox, Jean-Claude Tardif, Joao Morais, Marco Alcocer Gamba, Stefan Kääb, Michał Tendera
INTRODUCTION    Clinical outcomes of patients with stable coronary artery disease (SCAD) may differ between those primarily managed by cardiologists versus non-cardiologists.  OBJECTIVES    Our main objective was to analyze the clinical outcomes of outpatients with SCAD in relation to the specialty of the managing physicians.  PATIENTS AND METHODS    We studied 32,468 outpatients with SCAD included in the CLARIFY registry, with up to 4 years follow-up data. Cardiologists provided medical care in 84...
January 20, 2017: Polskie Archiwum Medycyny Wewnętrznej
https://www.readbyqxmd.com/read/28224925/diabetes-mellitus-is-a-coronary-heart-disease-risk-equivalent-for-peripheral-vascular-disease
#8
Jonathan D Newman, Caron B Rockman, Mikhail Kosiborod, Yu Guo, Hua Zhong, Howard S Weintraub, Arthur Z Schwartzbard, Mark A Adelman, Jeffrey S Berger
: Diabetes mellitus (diabetes) is associated with significantly increased risk of peripheral vascular disease. Diabetes is classified as a coronary heart disease (CHD) risk equivalent, but it is unknown whether diabetes is a CHD risk equivalent for peripheral vascular disease. The objective was to evaluate the odds of peripheral arterial disease (PAD) or carotid artery stenosis (CAS) among participants with diabetes, CHD, or both, compared with participants without diabetes or CHD, in a nationwide vascular screening database...
February 2017: American Heart Journal
https://www.readbyqxmd.com/read/28224720/pyridostigmine-bromide-versus-fludrocortisone-in-the-treatment-of-orthostatic-hypotension-in-parkinson-s-disease-a-randomized-controlled-trial
#9
S R Schreglmann, F Büchele, M Sommerauer, L Epprecht, G Kägi, S Hägele-Link, O Götze, L Zimmerli, D Waldvogel, C R Baumann
BACKGROUND AND PURPOSE: Evidence for effective treatment options for orthostatic hypotension (OH) in Parkinson's disease (PD) is scarce. Elevation of cholinergic tone with pyridostigmine bromide has been reported as a way to improve blood pressure (bp) regulation in neurogenic hypotension without causing supine hypertension. METHODS: This was a double-centre, double-blind, randomized, active-control, crossover, phase II non-inferiority trial of pyridostigmine bromide for OH in PD (clinicaltrials...
February 22, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28222987/french-multicenter-experience-with-the-gore-tigris-vascular-stent-in-superficial-femoral-and-popliteal-arteries
#10
Maxime Sibé, Adrien Kaladji, Claire Boirat, Alain Cardon, Xavier Chaufour, Jean-Pierre Bossavy, Bertrand Saint-Lebes
BACKGROUND: Preliminary results in small single-center studies after stenting with the GORE TIGRIS Vascular Stent (W. L. Gore & Associates, Flagstaff, Ariz) show promising short-term primary patency rates, but larger, multicenter studies are needed. This study therefore investigated the performance of the GORE TIGRIS Vascular Stent at three different centers in France in patients with symptomatic peripheral artery disease. METHODS: This retrospective, single-arm, multicenter cohort study included 215 patients with peripheral artery disease (Rutherford-Becker category 2-6) who were treated with the GORE TIGRIS Vascular Stent, a dual-component stent consisting of a nitinol wire frame combined with a fluoropolymer-interconnecting structure...
February 17, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28222501/a-molecular-case-control-study-of-association-of-hnf1a-gene-polymorphisms-rs2259816-and-rs7310409-with-risk-of-coronary-artery-disease-in-iranian-patients
#11
Samaneh Adami Barzi, Sayyed Mohammad Hossein Ghaderian, Zahra Noormohammadi
BACKGROUND: Coronary artery disease (CAD) is the one of the most common heart diseases, being the main factor of mortality and morbidity worldwide. CAD has been known as a multifactorial disease and its progression depends on genetic and environmental factors. Numerous studies have shown evidence for association between 12q24.3 locus and CAD. OBJECTIVES: In the present study, the association of two HNF1A polymorphisms, rs2259816 and rs7310409, located on 12q24.3 locus with CAD was investigated in Iranian patients...
January 24, 2017: Human Antibodies
https://www.readbyqxmd.com/read/28220078/inhibition-of-vegfr2-activation-and-its-downstream-signaling-to-erk1-2-and-calcium-by-thrombospondin-1-tsp1-in-silico-investigation
#12
Hojjat Bazzazi, Jeffery S Isenberg, Aleksander S Popel
VEGF signaling through VEGFR2 is a central regulator of the angiogenic response. Inhibition of VEGF signaling by the stress-induced matricellular protein TSP1 plays a role in modulating the angiogenic response to VEGF in both health and disease. TSP1 binding to CD47 inhibits VEGFR2 activation. The full implications of this inhibitory interaction are unknown. We developed a detailed rule-based computational model to inquire if TSP1-CD47 signaling through VEGF had downstream effects upon ERK1/2 and calcium. Our Simulations suggest that enhanced degradation of VEGFR2 initiated by the binding of TSP1 to CD47 is sufficient to explain the inhibition of VEGFR2 phosphorylation, calcium elevation, and ERK1/2 activation downstream of VEGF...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28219666/relation-of-iliac-artery-calcium-with-adiposity-measures-and-peripheral-artery-disease
#13
Jane J Lee, Alison Pedley, Ido Weinberg, Kathryn A Britton, Joseph M Massaro, Udo Hoffmann, Emily Manders, Caroline S Fox, Joanne M Murabito
Arterial calcification is associated with cardiovascular morbidity and mortality. To improve the understanding of the pathogenesis involved with iliac artery calcium (IAC), we sought to examine the associations between the burden of IAC with adiposity measures and peripheral artery disease (PAD). Participants (n = 1,236, 52% women, mean age 60 years) were drawn from the Framingham Heart Study Offspring cohort who underwent multidetector computed tomography. The extent of IAC was quantified based on calcified atherosclerotic plaques detected in the iliac arteries...
January 25, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28219004/doppler-ultrasonography-of-the-lower-extremity-arteries-anatomy-and-scanning-guidelines
#14
Ji Young Hwang
Doppler ultrasonography of the lower extremity arteries is a valuable technique, although it is less frequently indicated for peripheral arterial disease than for deep vein thrombosis or varicose veins. Ultrasonography can diagnose stenosis through the direct visualization of plaques and through the analysis of the Doppler waveforms in stenotic and poststenotic arteries. To perform Doppler ultrasonography of the lower extremity arteries, the operator should be familiar with the arterial anatomy of the lower extremities, basic scanning techniques, and the parameters used in color and pulsed-wave Doppler ultrasonography...
January 18, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28218569/associations-of-coronary-and-peripheral-artery-disease-with-presence-expansion-and-rupture-of-abdominal-aortic-aneurysm-a-grin-without-a-cat
#15
Hisato Takagi, Takuya Umemoto
Both coronary and peripheral artery disease are representative atherosclerotic diseases, which are also known to be positively associated with presence of abdominal aortic aneurysm. It is still controversial, however, whether coronary and peripheral artery disease are positively associated with expansion and rupture as well as presence of abdominal aortic aneurysm. In the present article, we overviewed epidemiological evidence, i. e. meta-analyses, regarding the associations of coronary and peripheral artery disease with presence, expansion, and rupture of abdominal aortic aneurysm through a systematic literature search...
February 20, 2017: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/28218361/arteriovenous-fistula-maturation-in-patients-with-permanent-access-created-prior-to-or-after-hemodialysis-initiation
#16
Juan C Duque, Laisel Martinez, Marwan Tabbara, Denise Dvorquez, Sushil K Mehandru, Arif Asif, Roberto I Vazquez-Padron, Loay H Salman
INTRODUCTION: Multiple factors and comorbidities have been implicated in the ability of arteriovenous fistulas (AVF) to mature, including vessel anatomy, advanced age, and the presence of coronary artery disease or peripheral vascular disease. However, little is known about the role of uremia on AVF primary failure. In this study, we attempt to evaluate the effect of uremia on AVF maturation by comparing AVF outcomes between pre-dialysis chronic kidney disease (CKD) stage five patients and those who had their AVF created after hemodialysis (HD) initiation...
February 15, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28215109/lipoprotein-associated-phospholipase-a2-and-risk-of-incident-peripheral-arterial-disease-in-a-multi-ethnic-cohort-the-multi-ethnic-study-of-atherosclerosis
#17
Parveen K Garg, Neal W Jorgensen, Robyn L McClelland, Nancy S Jenny, Michael H Criqui, Matthew A Allison, Philip Greenland, Robert S Rosenson, David S Siscovick, Mary Cushman
Prospective studies supporting a relationship between elevated lipoprotein-associated phospholipase A2 (Lp-PLA2) and incident peripheral arterial disease (PAD) are limited. We evaluated the association of Lp-PLA2 with incident PAD in a multi-ethnic cohort without clinical cardiovascular disease. A total of 4622 participants with measurement of Lp-PLA2 mass and Lp-PLA2 activity and an ankle-brachial index (ABI) between 0.9 and 1.4 were followed for the development of PAD (median follow-up = 9.3 years), defined as an ABI ⩽0...
February 2017: Vascular Medicine
https://www.readbyqxmd.com/read/28214287/association-of-warfarin-with-congestive-heart-failure-and-peripheral-artery-occlusive-disease-in-hemodialysis-patients-with-atrial-fibrillation
#18
Kuo-Hua Lee, Szu-Yuan Li, Jin-Sin Liu, Chi-Ting Huang, Ying-Ying Chen, Yao-Ping Lin, Chih-Cheng Hsu, Der-Cherng Tarng
BACKGROUND: The effect of warfarin on the risk of cardiovascular (CV) disease is unknown among chronic hemodialysis patients with atrial fibrillation (HD-AF). METHODS: Population-based propensity score and prescription time-distribution matched cohort study including 6719 HD-AF patients with CHA2DS2-VASc score ≥ 2 were divided into warfarin users and nonusers and followed-up for CV events and death. RESULTS: Warfarin treatment in HD-AF patients with AF preceding HD was associated with higher risks of developing congestive heart failure [hazard ratio (HR)=1...
February 14, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28211486/motor-phenotype-is-not-associated-with-vascular-dysfunction-in-symptomatic-huntington-s-disease-transgenic-r6-2-160-cag-mice
#19
A Di Pardo, A Carrizzo, A Damato, S Castaldo, E Amico, L Capocci, M Ambrosio, F Pompeo, C De Sanctis, C C Spinelli, A A Puca, P Remondelli, V Maglione, C Vecchione
Whereas Huntington's disease (HD) is unequivocally a neurological disorder, a critical mass of emerging studies highlights the occurrence of peripheral pathology like cardiovascular defects in both animal models and humans. The overt impairment in cardiac function is normally expected to be associated with peripheral vascular dysfunction, however whether this assumption is reasonable or not in HD is still unknown. In this study we functionally characterized the vascular system in R6/2 mouse model (line 160 CAG), which recapitulates several features of human pathology including cardiac disease...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28210939/deep-phenotyping-of-systemic-arterial-hemodynamics-in-hfpef-part-1-physiologic-and-technical-considerations
#20
REVIEW
Julio A Chirinos
A better understanding of the pathophysiology of heart failure with a preserved left ventricular ejection fraction (HFpEF) is important. Detailed phenotyping of pulsatile hemodynamics has provided important insights into the pathophysiology of left ventricular remodeling and fibrosis, diastolic dysfunction, microvascular disease, and impaired oxygen delivery to peripheral skeletal muscle, all of which contribute to exercise intolerance, the cardinal feature of HFpEF. Furthermore, arterial pulsatile hemodynamic mechanisms likely contribute to the frequent presence of comorbidities, such as renal failure and dementia, in this population...
February 16, 2017: Journal of Cardiovascular Translational Research
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