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https://www.readbyqxmd.com/read/29148094/acid-base-alterations-in-esrd-and-effects-of-hemodialysis
#1
REVIEW
Qi Qian
Acid-base alterations in patients with kidney failure and on hemodialysis (HD) treatment contribute to (1) intradialytic hypercapnia and hypoxia, (2) hemodynamic instability and cardiac arrhythmia, (3) systemic inflammation, and (4) a number of associated electrolyte alterations including potentiating effects of hypokalemia, hypocalcemia and, chronically, soft-tissue and vascular calcification, imparting poor prognosis and mortality. This paper discusses acid-base regulation and pathogenesis of dysregulation in patients with kidney failure...
November 16, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/29147170/clinical-assessment-of-warfarin-therapy-in-patients-with-maintenance-dialysis-clinical-efficacy-risks-and-development-of-calciphylaxis
#2
Hajime Hasegawa
Recent years, multiple studies regarding clinical efficacy and risks of Warfarin therapy in dialysis patients have been reported, and not a few reports conclude that clinical advantage of Warfarin is questionable in dialysis patients. Conversely, its hemorrhagic risk might be a little more serious in dialysis patients comparing to non-dialysis patients. Basically, it is assumed that long-term administration of Warfarin accelerates the development of vascular athelosclerosis because of the abolished anti-calcification effect of Gla-protein activation by decreased vitamin K activity...
September 25, 2017: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/29146232/parathyroidectomy-in-patients-with-chronic-kidney-disease-impacts-of-different-techniques-on-the-biochemical-and-clinical-evolution-of-secondary-hyperparathyroidism
#3
Roxana de Fátima Camelo Albuquerque, Cinthia Esbrile Moraes Carbonara, Rita de Cássia T Martin, Luciene Machado Dos Reis, Climério Pereira do Nascimento, Sérgio Samir Arap, Rosa M A Moysés, Vanda Jorgetti, Fábio L M Montenegro, Rodrigo Bueno de Oliveira
BACKGROUND: Parathyroidectomy (PTx) decreases the mortality rate of refractory secondary hyperparathyroidism (rSHP) due to chronic kidney disease. A consensus regarding which techniques of PTx are associated with better outcomes is not available. The aims of this study are to evaluate the clinical and laboratory evolution of 49 hemodialysis patients with rSHP who underwent PTx using different techniques. METHODS: Patients underwent subtotal PTx (sub-PTx) or total PTx with autotransplantation (AT) of 45 (PTx-AT45) or 90 parathyroid fragments (PTx-AT90) and were followed for 12 months...
November 13, 2017: Surgery
https://www.readbyqxmd.com/read/29145460/trail-attenuates-rankl-mediated-osteoblastic-signalling-in-vascular-cell-mono-culture-and-co-culture-models
#4
Emma Harper, Keith D Rochfort, Hannah Forde, Colin Davenport, Diarmuid Smith, Philip M Cummins
BACKGROUND AND OBJECTIVES: Vascular calcification (VC) is a major risk factor for elevated cardiovascular morbidity/mortality. Underlying this process is osteoblastic signalling within the vessel wall involving complex and interlinked roles for receptor-activator of nuclear factor-κB ligand (RANKL), osteoprotegerin (OPG), and tumour necrosis factor-related apoptosis-inducing ligand (TRAIL). RANKL promotes vascular cell osteoblastic differentiation, whilst OPG acts as a neutralizing decoy receptor for RANKL (and TRAIL)...
2017: PloS One
https://www.readbyqxmd.com/read/29145401/anatomically-specific-intratubular-and-interstitial-biominerals-in-the-human-renal-medullo-papillary-complex
#5
Ling Chen, Ryan S Hsi, Feifei Yang, Benjamin A Sherer, Marshall L Stoller, Sunita P Ho
Limited information exists on the anatomically-specific early stage events leading to clinically detectable mineral aggregates in the renal papilla. In this study, quantitative multiscale correlative maps of structural, elemental and biochemical properties of whole medullo-papillary complexes from human kidneys were developed. Correlative maps of properties specific to the uriniferous and vascular tubules using high-resolution X-ray computed tomography, scanning and transmission electron microscopy, energy dispersive X-ray spectroscopy, and immunolocalization of noncollagenous proteins (NCPs) along with their association with anatomy specific biominerals were obtained...
2017: PloS One
https://www.readbyqxmd.com/read/29144936/re-vascular-disease-and-kidney-stones-abdominal-aortic-calcifications-are-associated-with-low-urine-ph-and-hypocitraturia
#6
Dean G Assimos
No abstract text is available yet for this article.
December 2017: Journal of Urology
https://www.readbyqxmd.com/read/29143191/evaluation-of-the-solitary-pulmonary-nodule-size-matters-but-do-not-ignore-the-power-of-morphology
#7
REVIEW
Annemie Snoeckx, Pieter Reyntiens, Damien Desbuquoit, Maarten J Spinhoven, Paul E Van Schil, Jan P van Meerbeeck, Paul M Parizel
Subsequent to the widespread use of multidetector computed tomography and growing interest in lung cancer screening, small pulmonary nodules are more frequently detected. The differential diagnosis for a solitary pulmonary nodule is extremely broad and includes both benign and malignant causes. Recognition of early lung cancers is vital, since stage at diagnosis is crucial for prognosis. Estimation of the probability of malignancy is a challenging task, but crucial for follow-up and further work-up. In addition to the clinical setting and metabolic assessment, morphological assessment on thin-section computed tomography is essential...
November 15, 2017: Insights Into Imaging
https://www.readbyqxmd.com/read/29142966/oral-magnesium-supplementation-in-chronic-kidney-disease-stages-3-and-4-efficacy-safety-and-effect-on-serum-calcification-propensity-a%C3%A2-prospective-randomized-double-blinded-placebo-controlled-clinical-trial
#8
Iain Bressendorff, Ditte Hansen, Morten Schou, Burton Silver, Andreas Pasch, Pierre Bouchelouche, Lise Pedersen, Lars Melholt Rasmussen, Lisbet Brandi
Introduction: Chronic kidney disease (CKD) is associated with high cardiovascular morbidity and mortality. Recent evidence suggests that increases in both serum and intracellular magnesium (Mg) can slow or even prevent the development of vascular calcification seen in CKD. Serum calcification propensity (T50) is a novel functional test, which is associated with all-cause mortality in CKD and measures the ability of serum to delay the formation of crystalline nanoparticles. Theoretically, increasing serum Mg should improve T50 and thereby reduce the propensity towards ectopic calcification...
May 2017: KI Reports
https://www.readbyqxmd.com/read/29142489/correlation-between-osteoprotegerin-serum-level-and-coronary-calcification-using-coronary-artery-calcium-score-in-patient-with-moderate-severe-cardiovascular-risk-factor
#9
J Nugroho, Widorini Widorini
Coronary artery calcification is a part of atherosclerosis process associated with coronary heart disease. Recently, coronary artery calcification assessment using computed tomography (CT) is still the best noninvasive imaging with high sensitivity and specificity. Osteoprotegerin (OPG) is one of vascular calcification marker that through its role to bind receptor activator of nuclear factor-κβ ligand and inhibit osteoclastogenesis is suspected of playing a role for coronary calcification in atherosclerosis process...
December 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/29142252/gallic-acid-reduces-blood-pressure-and-attenuates-oxidative-stress-and-cardiac-hypertrophy-in-spontaneously-hypertensive-rats
#10
Li Jin, Zhe Hao Piao, Simei Sun, Bin Liu, Gwi Ran Kim, Young Mi Seok, Ming Quan Lin, Yuhee Ryu, Sin Young Choi, Hae Jin Kee, Myung Ho Jeong
Gallic acid (GA) has been reported to have beneficial effects on cancer, vascular calcification, and diabetes-induced myocardial dysfunction. We hypothesized that GA controls hypertension via oxidative stress response regulation in an animal model for essential hypertension. Spontaneously hypertensive rats (SHRs) were administered GA for 16 weeks. GA treatment lowered elevated systolic blood pressure in SHRs through the inhibition of vascular contractility and components of the renin-angiotensin II system. In addition, GA administration reduced aortic wall thickness and body weight in SHRs...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29140113/prediction-of-pancreatic-neuroendocrine-tumor-grade-based-on-ct-features-and-texture-analysis
#11
Rodrigo Canellas, Kristine S Burk, Anushri Parakh, Dushyant V Sahani
OBJECTIVE: The purposes of this study were to assess whether CT texture analysis and CT features are predictive of pancreatic neuroendocrine tumor (PNET) grade based on the World Health Organization (WHO) classification and to identify features related to disease progression after surgery. MATERIALS AND METHODS: Preoperative contrast-enhanced CT images of 101 patients with PNETs were assessed. The images were evaluated for tumor location, tumor size, tumor pattern, predominantly solid or cystic composition, presence of calcification, presence of heterogeneous enhancement on contrast-enhanced images, presence of pancreatic duct dilatation, presence of pancreatic atrophy, presence of vascular involvement by the tumor, and presence of lymphadenopathy...
November 15, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29137892/role-of-pyrophosphate-in-vascular-calcification-in-chronic-kidney-disease
#12
Daniel Azpiazu, Sergio Gonzalo, Emilio González-Parra, Jesús Egido, Ricardo Villa-Bellosta
Vascular calcification is a pathology characterized by the deposition of calcium-phosphate in cardiovascular structures, mainly in the form of hydroxyapatite crystals, resulting in ectopic calcification. It is correlated with increased risk of cardiovascular disease and myocardial infarction in diabetic patients and in those with chronic kidney disease (CKD). Vascular smooth muscle cells are sensitive to changes in inorganic phosphate (Pi) levels. They are able to adapt and modify some of their functions and promote changes which trigger calcification...
November 11, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/29134617/vascular-calcification-is-not-related-to-serum-fetuin-a-and-osteopontin-levels-in-hemodialysis-patients
#13
O Ulutas, M C Taskapan, A Dogan, T Baysal, H Taskapan
INTRODUCTION: Vascular calcification (VC) in hemodialysis (HD) patients is a sign of severe cardiovascular disease and can predict cardiovascular outcomes. Fetuin-A and osteopontin (OPN) inhibit VC. Serum fetuin-A levels are lower in patients with end-stage kidney disease (ESKD) and in those who are on chronic HD therapy. However, there are limited data concerning OPN in patients who are on dialysis. The aim of our study was to determine VC in HD patients, the relationship between VC and 25-OH-vitamin D, fetuin-A, and OPN levels, and independent predictors of VC...
November 13, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/29133976/bisphosphonates-atherosclerosis-and-vascular-calcification-update-and-systematic-review-of-clinical-studies
#14
REVIEW
Carla Caffarelli, Andrea Montagnani, Ranuccio Nuti, Stefano Gonnelli
Background: Epidemiologic and clinical data have suggested the existence of a biologic linkage between the bone system and the vascular system. Bisphosphonates (BPs) are effective inhibitors of bone resorption and are currently considered the drugs of choice for the prevention and treatment of osteoporosis and related fractures. Data from several publications have suggested that BPs may also be effective in reducing the atherosclerotic process and vascular calcification, but the results of these studies are contrasting...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/29131095/intracranial-internal-carotid-artery-wall-calcification-in-ischemic-strokes-treated-with-thrombolysis
#15
Miguel Tábuas-Pereira, João Sargento-Freitas, Fernando Silva, Joana Parra, Patrícia Mendes, Vera Seara, Miguel Mesquita, Mariana Baptista, Gustavo Cordeiro, Luis Cunha
BACKGROUND: Calcifications are an important element of atherosclerotic plaques and have been used as a marker of atherosclerosis and clinical outcome predictor in different vascular territories. CT-scan, performed in the acute ischemic stroke setting, can reliably detect intracranial arterial calcifications. OBJECTIVES: To investigate the association between intracranial internal carotid artery calcification and functional outcome, symptomatic intracerebral hemorrhage (sICH), recanalization, and death...
November 13, 2017: European Neurology
https://www.readbyqxmd.com/read/29130612/caliber-and-fitness-of-the-axillary-artery-as-a-conduit-for-large-bore-cardiovascular-procedures
#16
Daniel M Arnett, James C Lee, Michael A Harms, Kathleen E Kearney, Mario Ramos, Bryn M Smith, Emily C Anderson, Rajiv Tayal, James M McCabe
OBJECTIVES: We sought to describe the caliber and vascular health of the subclavian and axillary arteries as related to their potential utilization in complex cardiovascular procedures. BACKGROUND: Patients referred for advanced catheter-based therapies frequently have lower extremity peripheral vascular disease that may prohibit the use of large bore arterial catheters. Utilization of the upper extremity peripheral vasculature is rarely considered as an alternative access strategy...
November 11, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29125111/comparison-of-ultrasound-features-of-primary-metastatic-papillary-thyroid-carcinoma-and-recurrent-persistent-metastatic-cervical-lymph-nodes
#17
Jing-Zhu Xu, Zhi-Yong Liang, Xing-Hua Wang, Xiao-Yi Li, Hong-Feng Liu, Qiong Wu, Ru-Yu Liu, Xiao Yang, Shen-Ling Zhu, Rui-Na Zhao, Xing-Jian Lai, Xiao-Yan Zhang, Xue-Hua Xi, Bo Zhang
Objective To explore the ultrasound features and levels of cervical lymph node metastases in primary and recurrent/persistent papillary thyroid cancer (PTC).Methods We retrospectively analyzed the clinical data of 2181 patients who underwent cervical lymph nodes dissection for PTC from January 1(st) 2015 to January 1(st) 2016.Totally 418 PTC patients (with 622 lymph nodes) who met the inclusion criteria entered the final analysis.Patients who had not received any prior thyroid treatment (surgery with or without radioactive iodine) were categorized as the primary group (352 patients with 527 metastatic lymph nodes),and patients who had received prior treatment (thyroidectomy with or without radioactive iodine) for PTC were categorized as recurrent/persistent group (66 patients with 95 metastatic lymph nodes)...
October 30, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/29116910/treatment-of-femoropopliteal-lesions-with-the-angiosculpt-scoring-balloon-results-from-the-heidelberg-panther-registry
#18
Ira Lugenbiel, Michaela Grebner, Qianxing Zhou, Anna Strothmeyer, Britta Vogel, Rita Cebola, Oliver Müller, Bernadett Brado, Marc Mittnacht, Benedikt Kohler, Hugo Katus, Erwin Blessing
BACKGROUND: Treatment of calcified femoropopliteal lesions remains challenging, even in the era of drug-eluting balloon angioplasty. Lesion recoil and dissections after standard balloon angioplasty in calcific lesions often require subsequent stent implantation. Additionally, poor patency rates in calcified lesions despite the use of drug-eluting balloons may be due to the limited penetration depth of the antiproliferative drug in the presence of vascular calcium deposits. Therefore, preparation of calcified lesions with the AngioSculpt™ scoring balloon might be a valuable option either as a stand-alone treatment, followed by drug-eluting balloon angioplasty or prior to subsequent stent deployment...
November 8, 2017: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/29105493/a-7-year-single-center-experience-of-transfemoral-tavi-evolution-of-surgical-activity-and-impact-on-vascular-outcome
#19
Fabien Lareyre, Juliette Raffort, Carine Dommerc, Yacoub Habib, François Bourlon, Claude Mialhe
Transcatheter aortic valve implantation (TAVI) has become a well-established alternative to open surgery to treat aortic stenosis. We describe our 7-year TAVI experience using transfemoral access and identity changes in surgical activity and evaluate its impact on postoperative vascular outcomes. Consecutive patients (N = 340) who underwent TAVI with percutaneous transfemoral access were retrospectively included and divided into 4 quartiles according to the date of intervention. Vascular outcomes were classified according to the Valve Academic Research Consortium 2 classification...
January 1, 2017: Angiology
https://www.readbyqxmd.com/read/29101018/tissue-processing-techniques-for-fabrication-of-covered-stents-for-small-diameter-vascular-intervention
#20
Shahar Cohen, Smadar Magal, Itay Yakov, Evyatar Sirabella, Anna Bitman, Gabriel Groisman, Chaim Lotan
Animal-derived pericardial tissue is a widely used biomaterial typically treated with glutaraldehyde (GA) to achieve immunological acceptance and long-term durability. However, GA fixation of biological tissue is associated with long-term failure due to degeneration and calcification. In this study, we evaluated two alternative tissue processing methods for the fabrication of pericardial tissue covered stents: detergent-based decellularization (decell) and limited exposure to GA (gentle-glut). Processed pericardial tissues were extensively characterized both in-vitro and in-vivo...
October 31, 2017: Acta Biomaterialia
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