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https://www.readbyqxmd.com/read/27920128/forward-and-backward-pressure-waveform-morphology-in-hypertension
#1
Ye Li, Haotian Gu, Henry Fok, Jordi Alastruey, Philip Chowienczyk
We tested the hypothesis that increased pulse wave reflection and altered backward waveform morphology contribute to increased pulse pressure in subjects with higher pulse pressure compared with lower pulse pressure and to actions of vasoactive drugs to increase pulse pressure. We examined the relationship of backward to forward wave morphology in 158 subjects who were evaluated for hypertension (including some normotensive subjects) divided into 3 groups by central pulse pressure: group 1, 33±6.5 mm Hg; group 2, 45±4...
December 5, 2016: Hypertension
https://www.readbyqxmd.com/read/27918400/a-strategic-approach-for-developing-an-advanced-practice-workforce-from-postgraduate-transition-to-practice-fellowship-programs-and-beyond
#2
Dennis A Taylor, Britney S Broyhill, Allison M Burris, Mary Ann Wilcox
The healthcare provider landscape is rapidly changing. Given the imminent retirement of baby boomer physicians, implementation of the Affordable Care Act, and the increased utilization of health care services by an ever-aging population, the supply of providers cannot keep pace with the demand for services. This has led to an increased utilization of advanced clinical practitioners (ACPs). This article shows how one large highly-matrixed health care system approached identifying this workforce, and how thought leaders worked collaboratively with physicians, administrators, and ACPs to meet a growing demand for providers...
January 2017: Nursing Administration Quarterly
https://www.readbyqxmd.com/read/27916868/characterization-and-schwann-cell-seeding-of-up-to-15-0-cm-long-spider-silk-nerve-conduits-for-reconstruction-of-peripheral-nerve-defects
#3
Tim Kornfeld, Peter M Vogt, Vesna Bucan, Claas-Tido Peck, Kerstin Reimers, Christine Radtke
Nerve reconstruction of extended nerve defect injuries still remains challenging with respect to therapeutic options. The gold standard in nerve surgery is the autologous nerve graft. Due to the limitation of adequate donor nerves, surgical alternatives are needed. Nerve grafts made out of either natural or artificial materials represent this alternative. Several biomaterials are being explored and preclinical and clinical applications are ongoing. Unfortunately, nerve conduits with successful enhancement of axonal regeneration for nerve defects measuring over 4...
November 30, 2016: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/27914640/assessing-the-fugitive-emission-of-ch4-via-migration-along-fault-zones-comparing-potential-shale-gas-basins-to-non-shale-basins-in-the-uk
#4
I M Boothroyd, S Almond, F Worrall, R J Davies
This study considered whether faults bounding hydrocarbon-bearing basins could be conduits for methane release to the atmosphere. Five basin bounding faults in the UK were considered: two which bounded potential shale gas basins; two faults that bounded coal basins; and one that bounded a basin with no known hydrocarbon deposits. In each basin, two mobile methane surveys were conducted, one along the surface expression of the basin bounding fault and one along a line of similar length but not intersecting the fault...
September 24, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27914585/bladder-augmentation-in-anuric-defunctioned-microbladders-and-a-novel-antireflux-mechanism-for-mitrofanoff-anastomosis-to-the-ileal-patch
#5
Joana Lopes, Andy Robb, Liam McCarthy
BACKGROUND/PURPOSE: Reconstruction of microbladders is a difficult surgical challenge: How can a neobladder be recreated when >90% of the new bladder is augmented patch, and how can a Mitrofanoff conduit be anastomosed when the native bladder is so tiny? This series describes microbladders secondary to anuria and/or diversion that required augmentation. This was done using a de-tubularized ileal segment, and because of the small size of the native bladder, Mitrofanoff anastomosis was performed to the bowel patch (using a novel "Keel Procedure")...
November 13, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27913147/electro-kinetically-driven-peristaltic-transport-of-viscoelastic-physiological-fluids-through-a-finite-length-capillary-mathematical-modelling
#6
Dharmendra Tripathi, Ashu Yadav, O Anwar Bég
Analytical solutions are developed for the electro-kinetic flow of a viscoelastic biological liquid in a finite length cylindrical capillary geometry under peristaltic waves. The Jefferys' non-Newtonian constitutive model is employed to characterize rheological properties of the fluid. The unsteady conservation equations for mass and momentum with electro-kinetic and Darcian porous medium drag force terms are reduced to a system of steady linearized conservation equations in an axisymmetric coordinate system...
November 29, 2016: Mathematical Biosciences
https://www.readbyqxmd.com/read/27911554/thermal-spin-dynamics-of-yttrium-iron-garnet
#7
Joseph Barker, Gerrit E W Bauer
The magnetic insulator yttrium iron garnet can be grown with near perfection and is therefore and ideal conduit for spin currents. It is a complex material with 20 magnetic moments in the unit cell. In spite of being a ferrimagnet, YIG is almost always modeled as a simple ferromagnet with a single spin wave mode. We use the method of atomistic spin dynamics to study the temperature evolution of the full spin wave spectrum, in quantitative agreement with neutron scattering experiments. The antiferromagnetic or optical mode is found to suppress the spin Seebeck effect at room temperature and beyond due to thermally pumped spin currents with opposite polarization to the ferromagnetic mode...
November 18, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27909288/reconstruction-of-isolated-inferior-right-hepatic-vein-s-in-right-lobe-living-donor-liver-transplantation-using-polytetrafluoroethylene-grafts-a-new-feasible-concept-technique-of-bridging-conduit-venoplasty-and-outcomes
#8
Ashok Thorat, Shih-Chao Hsu, Horng-Ren Yang, Ping-Chun Li, Ming-Li Li, Chun-Chieh Yeh, Te-Hung Chen, Kin-Shing Poon, Long-Bin Jeng
BACKGROUND Right lobe living donor liver transplantation (LDLT) remains the most common form of liver transplantation in Asia. However, reconstruction of the venous outflow in a right liver allograft may pose technical difficulties if hepatic venous variations are present. Recently, much emphasis has been given to the reconstruction of large and multiple inferior right hepatic veins (IRHVs). The method of reconstructive technique, type of vascular grafts, and the outcome after the procedure have been a point of debate...
December 2, 2016: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/27909281/-transaortic-thoracic-endovascular-aortic-repair-via-right-anterior-mini-thoracotomy-report-of-a-case
#9
Keitaro Okamoto, Tomoyuki Wada, Hirofumi Anai, Satoshi Takebayashi, Takashi Shuto, Takayuki Kawashima, Kazuki Mori, Norio Hongo, Noritaka Kamei, Hiromu Mori, Shinji Miyamoto
An 81-year-old man presented with ruptured thoracic aortic aneurysm under stable condition. He had been suffering from chronic obstructive pulmonary disease, chronic renal failure and rheumatoid arthritis. We performed hybrid thoracic endovascular aortic repair via right anterior mini-thoracotomy inserting a device through a conduit on the ascending aorta. The patient was discharged without aorta-related complications.
December 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27908945/norwood-procedure-for-palliation-of-hypoplastic-left-heart-syndrome-right-ventricle-to-pulmonary-artery-conduit-vs-modified-blalock-taussig-shunt
#10
Dorothy M Beke
Patients with hypoplastic left heart syndrome undergo a series of operations to separate the pulmonary and systemic circulations. The first of at least 3 operations occurs in the newborn period, with a stage I palliation. The goal of stage I palliation is to provide pulmonary blood flow and create an unobstructed systemic outflow tract. Advances in surgical techniques and intraoperative and postoperative care have helped decrease morbidity and mortality for patients with hypoplastic left heart syndrome who have the stage I Norwood operation, but the patients continue to be at increased risk for hemodynamic collapse and adverse outcomes...
December 2016: Critical Care Nurse
https://www.readbyqxmd.com/read/27908816/blunt-traumatic-occlusion-of-the-common-iliac-artery-repaired-with-segmental-excision-and-internal-iliac-artery-patch-angioplasty
#11
Abid C Mogannam, Robert F Cubas, Ivan M Gutierrez, Juan A Astudillo, Ahmed M Abou-Zamzam
Common iliac artery (CIA) occlusion as a result of blunt trauma is rare and seldom reported. This has been associated with pelvic fractures and other great vessel lesions. Management options include endovascular covered stent placement, open anatomic repair with autogenous conduit, or open extra-anatomic repair with prosthetic material. We report the case of a middle-aged male with a right CIA injury secondary to blunt trauma who underwent a successful repair using an internal iliac artery (IIA) patch for injury to a 2 cm segment of CIA with peritoneal contamination...
November 28, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27908806/giant-aneurysm-of-in-situ-saphenous-vein-graft
#12
Jordan P Makela, Zachary M DeBoard, Paul Cisek
We report a case of a symptomatic and rapidly expanding aneurysm of an in-situ saphenous vein graft in a 70-year-old man with extensive prior open and endovascular procedures for aneurysmal disease. He was was found to have full-length aneurysmal dilation with rapid progression over the course of six months. Successful ligation and exclusion with subtotal excision of the aneurysmal segment was performed and revision bypass was foregone due to adequate distal perfusion via collateralization. This rare complication of autologous vein bypass graft typically occurs at the anastomoses and merits aneursymorrhaphy or ligation...
November 28, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27906063/characterization-of-a-multiprotein-complex-involved-in-excitation-transcription-coupling-of-skeletal-muscle
#13
Manuel Arias-Calderón, Gonzalo Almarza, Alexis Díaz-Vegas, Ariel Contreras-Ferrat, Denisse Valladares, Mariana Casas, Héctor Toledo, Enrique Jaimovich, Sonja Buvinic
BACKGROUND: Electrical activity regulates the expression of skeletal muscle genes by a process known as "excitation-transcription" (E-T) coupling. We have demonstrated that release of adenosine 5'-triphosphate (ATP) during depolarization activates membrane P2X/P2Y receptors, being the fundamental mediators between electrical stimulation, slow intracellular calcium transients, and gene expression. We propose that this signaling pathway would require the proper coordination between the voltage sensor (dihydropyridine receptor, DHPR), pannexin 1 channels (Panx1, ATP release conduit), nucleotide receptors, and other signaling molecules...
April 11, 2016: Skeletal Muscle
https://www.readbyqxmd.com/read/27903547/right-ventricle-and-exercise-capacity-more-than-a-passive-conduit
#14
EDITORIAL
Todd D Miller, Nandan S Anavekar
No abstract text is available yet for this article.
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903112/bypass-surgery-to-treat-symptomatic-fusiform-dilation-of-the-internal-carotid-artery-following-craniopharyngioma-resection-report-of-2-cases
#15
Long Wang, Xiang'en Shi, Fangjun Liu, Hai Qian
Fusiform dilation of the internal carotid artery (FDICA) is an infrequent vascular complication following resection of suprasellar lesions in the pediatric population, and its course appears to be benign without apparent clinical symptoms. However, data correlating symptomatic FDICA with bypass surgery are scarce. The authors here report 2 symptomatic cases that were treated using internal maxillary artery bypass more than 5 years after total removal of a craniopharyngioma at an outside institution. Both cases of FDICA were resected to relieve the mass effect and to expose the craniopharyngioma...
December 2016: Neurosurgical Focus
https://www.readbyqxmd.com/read/27901350/blood-transfusion-requirement-and-not-preoperative-anaemia-is-associated-with-perioperative-complications-following-intracorporeal-robotic-assisted-radical-cystectomy
#16
Wei Shen Tan, Benjamin Wilfrid Lamb, Pramit Khetrapal, Mae-Yen Tan, Melanie El Tan, Ashwin Sridhar, Elizabeth Cervi, Simon Rodney, Gerald Busuttil, Senthil Nathan, John Hines, Greg Shaw, Anna Mohammed, Hilary Baker, Timothy P Briggs, Andrew Klein, Toby Richards, John D Kelly
OBJECTIVES: To assess the prevalence of preoperative anaemia and the impact of preoperative anaemia and blood transfusion requirement on 30- and 90-day complications in a cohort of patients undergoing robotic assisted radical cystectomy with intracorporeal urinary diversion (iRARC). PATIENTS & METHODS: IRARC was performed on 166 patients between June 2011-March 2016. Prospective data was collected for patient demographics, clinical and pathological characteristics, perioperative variables, transfusion requirements and hospital length of stay...
November 30, 2016: Journal of Endourology
https://www.readbyqxmd.com/read/27896894/perspectives-of-resettled-african-refugees-on-accessing-medicines-and-pharmacy-services-in-queensland-australia
#17
Kim Bellamy, Remo Ostini, Nataly Martini, Therese Kairuz
OBJECTIVES: The aim of this study was to explore the barriers to accessing medicines and pharmacy services among refugees in Queensland, Australia, from the perspectives of resettled African refugees. METHODS: A generic qualitative approach was used in this study. Resettled African refugees were recruited via a purposive snowball sampling method. The researcher collected data from different African refugee communities, specifically those from Sudanese, Congolese and Somalian communities...
November 29, 2016: International Journal of Pharmacy Practice
https://www.readbyqxmd.com/read/27896217/adapt-recycle-and-move-on-proteostasis-and-trafficking-mechanisms-in-melanoma
#18
REVIEW
Seyma Demirsoy, Shaun Martin, Hannelore Maes, Patrizia Agostinis
Melanoma has emerged as a paradigm of a highly aggressive and plastic cancer, capable to co-opt the tumor stroma in order to adapt to the hostile microenvironment, suppress immunosurveillance mechanisms, and disseminate. In particular, oncogene- and aneuploidy-driven dysregulations of proteostasis in melanoma cells impose a rewiring of central proteostatic processes, such as the heat shock and unfolded protein responses, autophagy, and the endo-lysosomal system, to avoid proteotoxicity. Research over the past decade has indicated that alterations in key nodes of these proteostasis pathways act in conjunction with crucial oncogenic drivers to increase intrinsic adaptations of melanoma cells against proteotoxic stress, modulate the high metabolic demand of these cancer cells and the interface with other stromal cells, through the heightened release of soluble factors or exosomes...
2016: Frontiers in Oncology
https://www.readbyqxmd.com/read/27893553/healing-effects-of-platelet-rich-plasma-on-peripheral-nerve-injuries
#19
Farshid Bastami, Peyman Vares, Arash Khojasteh
Regeneration of peripheral nerve injuries (PNIs) has been a major challenging issue in regenerative medicine and tissue engineering. Inferior alveolar nerve and lingual nerve injuries are the major difficulties and complications of oral surgeries following dental implant placement, etc. The aim of this study was to systematically review the effects of platelet-rich plasma (PRP) on the regeneration of PNIs. Medline NCBI databases were searched for related articles up to and including May 2016. Being published in English papers, use of PRP in peripheral nerve regeneration, in vivo studies, and having histological evaluations was the inclusion criteria...
November 23, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27892726/design-and-characterization-of-neurodurable-gellan-xanthan-ph-responsive-hydrogels-for-controlled-drug-delivery
#20
Poornima Ramburrun, Yahya E Choonara, Pradeep Kumar, Lisa C du Toit, Viness Pillay
OBJECTIVES: The purpose of this study was to develop novel, porous neurodurable interpenetrating networks of gellan-xanthan hydrogel conduits intercalated with pristine polymethyl methacrylate (PMMA) particles for the sustained and concurrent release of two model compounds: bovine serum albumin (BSA) and diclofenac sodium. METHODS: Hydrogel conduits were synthesized using a thermal-ionic crosslinking mechanism with direct incorporation of PMMA. The 15 formulations, generated using a Box-Behnken experimental design, were analyzed for drug release, swelling, erosion and textural properties...
November 28, 2016: Expert Opinion on Drug Delivery
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