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https://www.readbyqxmd.com/read/29775762/aortic-vascular-calcification-is-inversely-associated-with-the-trabecular-bone-score-in-patients-receiving-dialysis
#1
Jasna Aleksova, Samantha Kurniawan, Mirna Vucak-Dzumhur, Peter Kerr, Peter R Ebeling, Frances Milat, Grahame J Elder
INTRODUCTION: Progressive chronic kidney disease (CKD) confers a marked increase in risk for vascular calcification, cardiovascular disease, fracture and mortality, with likely contributing factors including dysregulated bone metabolism and mineral homeostasis. In general population studies, increased vascular calcification is directly related to mortality and inversely related to bone mineral density (BMD) measured by dual-energy X-ray absorptiometry (DXA). In patients with CKD, abnormalities in turnover, mineralization and bone volume, reduce the ability of DXA to predict fracture...
May 15, 2018: Bone
https://www.readbyqxmd.com/read/29775154/clinical-and-radiological-outcomes-of-proactive-gamma-knife-surgery-for-asymptomatic-meningiomas-compared-with-the-natural-course-without-intervention
#2
Kyung Hwan Kim, So Jeong Kang, Jung-Won Choi, Doo-Sik Kong, Ho Jun Seol, Do-Hyun Nam, Jung-Il Lee
OBJECTIVE This study aimed to verify the effect of proactive Gamma Knife surgery (GKS) in the treatment of asymptomatic meningioma compared with the natural course without any therapeutic intervention. METHODS From January 2006 to May 2017, 354 patients newly diagnosed with asymptomatic meningioma were reviewed and categorized into GKS (n = 153) and observation (n = 201) groups. Clinical and radiological progression rates were examined, and changes in volume were analyzed. RESULTS Clinical progression (i.e...
May 18, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29774883/-properties-of-decellularized-rabbit-carotid-artery-with-two-different-cross-linked-technologies-a-comparative-study
#3
Lei Huang, Feng Kuang, Demiao Kong, Xinmin Zhou
To compare the properties between decellularized rabbit carotid artery with different cross-linked technologies.
 Methods: The decellularized rabbit carotid arteries were randomly divided into a photo-oxidation group and a procyanidins group. One group was cross-linked with photo-oxidation and the other group was cross-linked with procyanidins. The in vitro or in vivo properties of the two groups were evaluated by testing heat-shrinking temperature, max tensile strength and the max elongation or by testing tissue structure, inflammatory reaction and calcification degree...
April 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29774520/implantation-of-bioresorbable-scaffolds-under-guidance-of-optical-coherence-tomography-feasibility-and-pilot-clinical-results-of-a-systematic-protocol
#4
Juan Luis Gutiérrez-Chico, Carlos Cortés, Michele Schincariol, Ula Limon, Meric Yalcinli, María-Alexandra Durán-Cortés, Milosz Jaguszewski
BACKGROUND: We hypothesise that a comprehensive optical coherence tomography (OCT)-guided implantation protocol for bioresorbable scaffolds (BRS) might improve expansion and apposition, thus translating into better clinical outcomes, particularly reducing thrombotic events. METHODS: Patients considered suitable for BRS therapy in de novo coronary lesions underwent OCT. The predominant type of plaque was classified as lipidic, fibrous or calcific, undergoing tailored plaque preparation accordingly...
May 18, 2018: Cardiology Journal
https://www.readbyqxmd.com/read/29774361/diagnostic-performance-of-ata-bta-and-tirads-sonographic-patterns-in-the-predication-of-malignancy-in-histologically-proven-thyroid-nodules
#5
Chiaw Ling Chng, Hong Chang Tan, Chow Wei Too, Wei Ying Lim, Priscilla Pei Sze Chiam, Ling Zhu, Nivedita Vikas Nadkarni, Adoree Yi Ying Lim
INTRODUCTION: We aimed to compare the malignancy risk stratification of histologically proven thyroid nodules using the 2015 American Thyroid Association (ATA) Management Guidelines, 2014 British Thyroid Association (BTA) Guidelines for the Management of Thyroid Cancer and Thyroid Imaging Reporting and Data System (TIRADS). METHODS: Thyroid nodules measuring > 1 cm resected over 5.5 years were retrospectively studied. Information like gender and age, and cytology and histopathology results were collected...
May 18, 2018: Singapore Medical Journal
https://www.readbyqxmd.com/read/29773466/in-vivo-morphologic-comparison-of-saphenous-vein-grafts-and-native-coronary-arteries-following-non-st-elevation-myocardial-infarction
#6
Tom Hsun-Wei Huang, Kalpa De Silva, Usaid K Allahwala, Edward J Danson, Pasi K Karjalainen, Olli A Kajander, Ravinay Bhindi
OBJECTIVE: This study aimed to assess the pathophysiological differences between saphenous vein grafts (SVG) and native coronary arteries (NCA) following presentation with non-ST elevated myocardial infarction (NSTEMI). BACKGROUND: There is accelerated pathogenesis of de novo coronary disease in harvested SVG following coronary artery bypass (CABG) surgery, which contributes to both early and late graft failure, and is also causal in adverse outcomes following vein graft PCI...
April 16, 2018: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29773445/transcatheter-aortic-valve-insertion-in-patients-with-hostile-ascending-aorta-calcification
#7
Akio Nakasu, Kevin L Greason, Vuyisile T Nkomo, Mackram F Eleid, Alberto Pochettino, Katherine S King, Gurpreet S Sandhu, Eric E Williamson, David R Holmes
OBJECTIVE: Calcification of the ascending aorta complicates aortic valve replacement. Transcatheter aortic valve replacement is an alternative procedure in this situation, but it requires manipulation through the hostile area in the ascending aorta. We reviewed our transcatheter aortic valve insertion experience to better understand the surgical mortality risk of valve insertion in patients with extensive calcification of the ascending aorta. METHODS: We retrospectively reviewed the records of 665 consecutive patients who received transcatheter aortic valve insertion from November 2008 through December 2015...
April 7, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29772324/morphology-related-limitations-of-evar-applicability-in-the-treatment-of-aaa-in-west-central-poland
#8
Łukasz Dzieciuchowicz, Jolanta Tomczak, Ewa Strauss, Grzegorz Oszkinis
BACKGROUND: To analyze the current applicability of endovascular aneurysm repair (EVAR) in patients with an infrarenal abdominal aortic aneurysm (AAAs) with indication for elective treatment in West-Central Poland. METHODS: Computed tomography angiograms of 100 consecutive patients with infrarenal AAA deemed to require treatment were analyzed with an OsiriX DICOM viewer in 3D-MPR mode. Proximal neck diameter, length, angulation, shape, the presence of thrombus and calcification, distal neck diameter, and morphology of the iliac arteries were determined...
May 14, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29770264/calcified-triticeous-cartilage-detected-on-digital-panoramic-radiographs-in-a-sample-of-lebanese-population
#9
Georges Aoun, Ibrahim Nasseh
Objective: Triticeous cartilage is a small ovoid structure belonging to the laryngeal skeleton. When calcified, it becomes visible on panoramic radiographs and be mistaken for a carotid artery calcification (CAC) associated with cerebrovascular accidents. This study aimed to estimate the prevalence of calcified triticeous cartilage (CTC) detected by means of digital panoramic radiographs in a sample of Lebanese population. Materials and Methods: Digital panoramic radiographs of 500 Lebanese adult patients (281 females and 219 males) with a mean age of 47...
2018: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/29770194/clinical-utility-of-hyperbaric-oxygen-therapy-in-genitourinary-medicine
#10
REVIEW
Jason Gandhi, Omar Seyam, Noel L Smith, Gunjan Joshi, Sohrab Vatsia, Sardar Ali Khan
Hyperbaric oxygen therapy (HBOT) is a medical technique which delivers oxygen at ambient pressures to increase the amount of dissolved oxygen in the blood and oxygen distribution to tissues. There are several beneficial properties of HBOT concomitant with elevated oxygen distribution in tissue including anti-inflammation, angiogenesis through vascular endothelial growth factor proliferation, augmented fibroblast activity through fibroblast growth factor proliferation, tissue and wound repair, enhancement of lymphocyte and macrophage activity, increased male testosterone secretion, and bactericidal activity...
January 2018: Medical Gas Research
https://www.readbyqxmd.com/read/29768322/lung-cancer-screening-ct-based-coronary-artery-calcification-in-predicting-cardiovascular-events-a-systematic-review-and-meta-analysis
#11
Lili Fan, Kaikai Fan
BACKGROUND: Coronary artery calcificition (CAC) is a well-established predictor of cardiovascular events (CVEs). We aimed to evaluate whether lung cancer screening computed tomography (CT)-based CAC score has a good cost-effectiveness for predicting CVEs in heavy smokers. METHODS: A literature search was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Pubmed, EMBASE, and Cochrane library databases were systematically searched for relevant studies that investigated the association between lung cancer screening CT-based CAC and CVEs up to December 31, 2017...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29766357/enhancement-of-calcification-by-osteoblasts-cultured-on-hydroxyapatite-surfaces-with-adsorbed-inorganic-polyphosphate
#12
Kan Kato, Koji Morita, Isao Hirata, Kazuya Doi, Takayasu Kubo, Koichi Kato, Kazuhiro Tsuga
Inorganic polyphosphate has been expected to accelerate bone regeneration. However, there are limited evidences to prove that polyphosphate adsorbed on the surface of a hydroxyapatite plate enhances calcification of cultured osteoblasts. In this study, we examined the effect of polyphosphate adsorbed onto the surface of a hydroxyapatite plate on the attachment, proliferation, differentiation, and calcification of osteoblasts. After hydroxyapatite plates were soaked in solutions of polyphosphate, the plate surfaces were analyzed by scanning electron microscopy and toluidine blue staining to confirm adsorption of polyphosphate...
May 15, 2018: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/29766009/persistent-buttock-claudication-after-endovascular-abdominal-aortic-aneurysm-repair
#13
Alessandro Robaldo, Stefano Pagliari, Filippo Piaggio, Patrizio Colotto
We describe the successful surgical treatment of a 71-year-old man affected by right buttock claudication after a right internal iliac artery (IIA) coil embolization as an adjunct to endovascular iliac artery aneurysm repair. Computed tomography angiography revealed extensive aortoiliac calcifications and thrombus in the vessel walls. Despite patency of the contralateral IIA and preservation of right distal collateral flow through ipsilateral hypogastric branches, the symptom was persistent and disabling. The high-risk patient underwent an "open" repair of the infrarenal abdominal aneurysm with removal of the entire stent-graft and concomitant revascularization of the right IIA...
December 2017: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/29765227/age-gender-distribution-of-coronary-artery-calcium-score-in-a-black-african-population-in-ghana
#14
George Asafu Adjaye Frimpong, Isaac Kofi Owusu, Ijeoma Chinedum Anyitey-Kokor, Caitlin Selassie Naa Sarku Wiafe-Kwakye, Evans Aboagye, Nana Esi Coleman, Pierre Amankwah, Nakao Kuukua Abaidoo
Background: Distribution of coronary artery calcium (CAC) has been determined in different heterogeneous populations in the Multi-Ethnic Study of Atherosclerosis (MESA). Based on findings showing that geography and culture can influence CAC scoring beyond traditional race groups, we determined the distribution of CAC in a homogenous black African population to provide an initial basis for a larger CAC score study in Africa. Methods and results: This is a preliminary study using computed tomography to determine the CAC scores within a black African population who were referred to our center...
2018: Vascular Health and Risk Management
https://www.readbyqxmd.com/read/29764395/longitudinal-changes-in-bone-and-mineral-metabolism-after-cessation-of-cinacalcet-in-dialysis-patients-with-secondary-hyperparathyroidism
#15
Irene Ruderman, Edward R Smith, Nigel D Toussaint, Tim D Hewitson, Stephen G Holt
BACKGROUND: The calcimimetic agent cinacalcet is effective for the management of secondary hyperparathyroidism (SHPT) in dialysis patients. Changes to reimbursement of cinacalcet in Australia provided an opportunity to assess effects of medication cessation on biochemical and clinical outcomes in dialysis patients, including changes to novel biomarkers such as calciprotein particles (CPP). CPP are nanoparticles of mineral and protein in the circulation associated with increased vascular calcification in patients with chronic kidney disease...
May 15, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29764199/change-in-microcalcifications-on-mammography-after-neoadjuvant-chemotherapy-in-breast-cancer-patients-correlation-with-tumor-response-grade-and-comparison-with-lesion-extent
#16
Hyunee Yim, Taeyang Ha, Doo Kyoung Kang, Seong Young Park, Yongsik Jung, Tae Hee Kim
Background After neoadjuvant chemotherapy (NAC), persistent microcalcifications are often observed in spite of a decrease in the primary tumor size. Purpose To analyze the changes in microcalcifications after NAC and to evaluate the accuracy of residual microcalcifications in predicting the extent of residual cancer. Material and Methods Eighty patients who received NAC and underwent both mammography and magnetic resonance imaging (MRI) before and after the completion of NAC were included. The location of microcalcifications was classified into two types: inside the mass and outside the mass...
January 1, 2018: Acta Radiologica
https://www.readbyqxmd.com/read/29763423/from-one-incision-to-one-port-the-surgical-technique-and-the-evolution-of-segmentectomy-in-patients-with-pulmonary-tuberculosis
#17
Yau-Lin Tseng, Chao-Chun Chang, Ying-Yuan Chen, Yi-Sheng Liu, Lili Cheng, Jia-Ming Chang, Ming-Ho Wu, Yi-Ting Yen
OBJECTIVES: We retrospectively reviewed the evolution of segmentectomy for pulmonary tuberculosis (TB) and the feasibility of multi- and single-incision video-assisted thoracoscopic segmentectomy. METHODS: Of 348 patients undergoing surgery for TB, the medical records of 121 patients undergoing segmentectomy between January 1996 and November 2015 were reviewed. Clinical information and computed tomography (CT) image characteristics were investigated and analyzed...
2018: PloS One
https://www.readbyqxmd.com/read/29763365/effect-of-cross-linked-chitosan-iron-iii-on-vascular-calcification-in-uremic-rats
#18
Barbara Bruna Abreu de Castro, Wander Barros do Carmo, Paulo Giovani de Albuquerque Suassuna, Moises Carminatti, Julia Bianchi Brito, Wagner Vasques Dominguez, Ivone Braga de Oliveira, Vanda Jorgetti, Melani Ribeiro Custodio, Helady Sanders-Pinheiro
Cross-linked chitosan iron (III) is a chitin-derived polymer with a chelating effect on phosphorus, but it is untested in vascular calcification. We evaluated this compound's ability to reduce hyperphosphatemia and its effect on vascular calcification in uremic rats using an adenine-based, phosphorus-rich diet for seven weeks. We used a control group to characterize the uremia. Uremic rats were divided according the treatment into chronic kidney disease, CKD-Ch-Fe(III)CL (CKD-Ch), CKD-calcium carbonate, or CKD-sevelamer groups...
May 2018: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29763350/fluoride-exposure-in-early-life-as-the-possible-root-cause-of-disease-in-later-life
#19
Tetsuo Nakamoto, H Ralph Rawls
Fluoride, one of the most celebrated ingredients for the prevention of dental caries in the 20th century, has also been controversial for its use in dentifrices and other applications. In the current review, we have concentrated primarily on early-life exposure to fluoride and how it may affect the various organs. The most recent controversial aspects of fluoride are related to toxicity of the developing brain and how it may possibly result in the decrease of intelligence quotient (IQ), autism, and calcification of the pineal gland...
May 15, 2018: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/29762932/pulmonary-hypertension-as-a-possible-cause-of-paradoxical-low-flow-low-gradient-aortic-stenosis
#20
Yuta Watanabe, Haruhiko Higashi, Katsuji Inoue, Jun Aono, Takafumi Okura, Jitsuo Higaki, Shuntaro Ikeda
Paradoxical low-flow, low-gradient aortic stenosis (LFLG AS) is recognized as a subtype of aortic stenosis. A small left ventricular (LV) cavity with marked LV concentric remodeling leads to a reduced stroke volume in this condition. The case is reported of a paradoxical LFLG AS patient who was undergoing treatment for pulmonary hypertension (PH) and interstitial pneumonia associated with scleroderma. Echocardiography demonstrated enlargement of the right ventricle and a diminished LV cavity. Moreover, the aortic valve opening was restricted despite a preserved LV ejection fraction (61%)...
September 2017: Journal of Heart Valve Disease
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