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https://www.readbyqxmd.com/read/29777884/neurosurgical-management-of-self-inflicted-cranial-crossbow-injury
#1
Charles G Kulwin, Andrew DeNardo, Saad Khairi, Troy Payner
BACKGROUND: While gun-related penetrating traumatic brain injuries make up the majority of cranial missile injuries, low-velocity penetrating injuries present significant clinical difficulties that cannot necessarily be identically managed. Bow hunting is an increasingly popular pastime, and a crossbow allows a unique mechanism to cause a self-inflicted cranial injury with a large, low-velocity projectile. Historically, arrow removal is described in an operating room setting, which provides limited knowledge of the location of vascular injury in the setting of post-removal hemorrhage, and may represent an inefficient use of operating room availability...
May 16, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29777846/an-academic-tertiary-referral-center-s-experience-with-a-vascular-surgery-based-uterine-artery-embolization-program
#2
Naiem Nassiri, Adrian Balica, Nolan C Cirillo-Penn, Dustin Tyler Crystal, Gloria A Bachmann
OBJECTIVE: Despite growing endovascular experience within the vascular surgery community, some catheter-based interventions - such as uterine artery embolization (UAE) - remain outside the clinical scope of most vascular surgeons, owing in part to established referral patterns and limited awareness among referring colleagues. We present our experience with a vascular surgery-based, multidisciplinary UAE program at an academic tertiary referral center. METHODS: In a collaborative effort between vascular surgery and gynecology, a Pelvic Vascular Disease Program has been established to provide palliative, prophylactic, and therapeutic embolizations including, but not limited to, UAE...
May 16, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29777585/potential-vascular-mechanisms-in-an-ex-vivo-functional-pig-bladder-model
#3
Uzoma A Anele, Paul H Ratz, Andrew F Colhoun, Sydney Roberts, Ryan Musselman, Randy A Vince, John E Speich, Adam P Klausner
AIMS: Chronic ischemia is a recognized factor in the pathophysiology of underactive bladder (UAB). Although relative ischemia (ie, low blood flow) is known to occur during filling, little is known regarding the pathophysiology that leads to UAB. Therefore, we developed an ex vivo functional porcine model to investigate the role of transient ischemia and whether autoregulation, a mechanism that maintains tissue oxygenation in certain vital organs, also exists in the bladder. METHODS: Using bladders from slaughtered pigs, we prepared an isolated perfused model where we studied the effects of bladder perfusion flow rate on perfusion pressure and tissue oxygenation during the filling phase...
May 19, 2018: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/29777174/how-does-blood-regulate-cerebral-temperatures-during-hypothermia
#4
Stephen Blowers, Ian Marshall, Michael Thrippleton, Peter Andrews, Bridget Harris, Iain Bethune, Prashant Valluri
Macro-modeling of cerebral blood flow can help determine the impact of thermal intervention during instances of head trauma to mitigate tissue damage. This work presents a bioheat model using a 3D fluid-porous domain coupled with intersecting 1D arterial and venous vessel trees. This combined vascular porous (VaPor) model resolves both cerebral blood flow and energy equations, including heat generated by metabolism, using vasculature extracted from MRI data and is extended using a tree generation algorithm...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29776646/international-consortium-of-vascular-registries-consensus-recommendations-for-peripheral-revascularisation-registry-data-collection
#5
Christian-Alexander Behrendt, Daniel Bertges, Nikolaj Eldrup, Adam W Beck, Kevin Mani, Maarit Venermo, Zoltán Szeberin, Gabor Menyhei, Ian Thomson, Georg Heller, Pius Wigger, Gudmundur Danielsson, Giuseppe Galzerano, Cristina Lopez, Martin Altreuther, Birgitta Sigvant, Henrik C Rieß, Art Sedrakyan, Barry Beiles, Martin Björck, Jonathan R Boyle, E Sebastian Debus, Jack Cronenwett
OBJECTIVE/BACKGROUND: To achieve consensus on the minimum core data set for evaluation of peripheral arterial revascularisation outcomes and enable collaboration among international registries. METHODS: A modified Delphi approach was used to achieve consensus among international vascular surgeons and registry members of the International Consortium of Vascular Registries (ICVR). Variables, including definitions, from registries covering open and endovascular surgery, representing 14 countries in ICVR, were collected and analysed to define a minimum core data set and to develop an optimum data set for registries...
May 15, 2018: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29775656/peripheral-vascular-stent-infection-case-report-and-review-of-literature
#6
Greg H Whitcher, Daniel J Bertges, Mrinal Shukla
We describe a case of an infected popliteal artery stent with septic emboli presenting 6 years after peripheral vascular intervention for intermittent claudication. Management included resection of the stent and popliteal artery and revascularization by femoral-popliteal bypass with autogenous vein. This case demonstrates that peripheral stent infections can develop years after intervention. We performed an English language PUBMED literature review of arterial peripheral vascular stent infections on using the search term, "Non-coronary stent or stent graft infection from 1966 to present...
May 15, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29774181/embolization-with-ethylene-vinyl-alcohol-copolymer-onyx-%C3%A2-for-peripheral-hemostatic-and-non-hemostatic-applications-a-feasibility-and-safety-study
#7
Romaric Né, Olivier Chevallier, Nicolas Falvo, Olivier Facy, Pierre-Emmanuel Berthod, Christophe Galland, Sophie Gehin, Marco Midulla, Romaric Loffroy
Background: Onyx® is a liquid embolic agent, which is approved for the treatment of cerebral vascular lesions but still rarely used in peripheral interventional radiology. The goal of this study is to report the feasibility and safety of embolization with Onyx® for peripheral hemostatic and non-hemostatic endovascular procedures. Methods: Retrospective study of all consecutive patients who underwent visceral or peripheral embolization with Onyx® for hemostatic or non-hemostatic purpose in our department between May 2014 and November 2016...
April 2018: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/29774173/role-of-interventional-radiology-in-the-management-of-peripheral-vascular-malformations-a-tertiary-care-center-experience
#8
Misbah Tahir, Muhammad Anees Mumtaz, Anum Sultan, Jawaid Iqbal, Raza Sayani
Peripheral vascular malformations (PVMs) represent a wide spectrum of vascular abnormalities occurring due to anomalous connections between arteries, veins, capillaries, and lymphatic channels at the microscopic level, in different combinations. They are rare and challenging to treat. Different operators may have different approaches based on their experience and expertise. Sclerotherapy either alone or in combination with embolization has been used as an independent method for the treatment of PVMs. Purpose The aim of this study is to assess the safety and efficacy of sclerotherapy and embolization, with or without surgery, for the treatment of peripheral vascular malformations, based on our approach...
March 16, 2018: Curēus
https://www.readbyqxmd.com/read/29774102/targeting-tie-2-angiopoietin-axis-in-experimental-mesothelioma-confers-differential-responses-and-raises-predictive-implications
#9
Sophia Magkouta, Apostolos Pappas, Ioannis S Pateras, Androniki Kollintza, Charalampos Moschos, Maria-Eleni Vazakidou, Vasiliki Karavana, Vassilis G Gorgoulis, Ioannis Kalomenidis
Malignant pleural mesothelioma is resistant to currently used treatment. Angiopoieitn-1 directly promotes mesothelioma cell growth in a Tie-2-dependent fashion. Angiopoietin/Tie-2 axis may thus be valid targets for therapeutic interventions against mesothelioma. We hypothesized that a soluble angiopoietin inhibitor (Murine Tek-deltaFc) would halt mesothelioma progression in vivo by enhancing mesothelioma cell proliferation and inhibiting tumor angiogenesis. Our hypothesis was challenged on two syngeneic mesothelioma in vivo models (AB1 cells-Balb/c mice and AE17 cells-C57BL/6 mice...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29773431/preoperative-frailty-assessment-predicts-loss-of-independence-after-vascular-surgery
#10
Graham W Donald, Amir A Ghaffarian, Farid Isaac, Larry W Kraiss, Claire L Griffin, Brigitte K Smith, Mark R Sarfati, Julie L Beckstrom, Benjamin S Brooke
OBJECTIVE: Frailty, a clinical syndrome associated with loss of metabolic reserves, is prevalent among patients who present to vascular surgery clinics for evaluation. The Clinical Frailty Scale (CFS) is a rapid assessment method shown to be highly specific for identifying frail patients. In this study, we sought to evaluate whether the preoperative CFS score could be used to predict loss of independence after major vascular procedures. METHODS: We identified all patients living independently at home who were prospectively assessed using the CFS before undergoing an elective major vascular surgery procedure (admitted for >24 hours) at an academic medical center between December 2015 and December 2017...
May 14, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29772044/a-phase-1-open-label-dose-escalation-trial-to-investigate-safety-and-tolerability-of-single-intravitreous-injections-of-icon-1-targeting-tissue-factor-in-wet-amd
#11
John A Wells, Christine R Gonzales, Brian B Berger, Victor H Gonzalez, Brian D Sippy, Gabriela Burian
BACKGROUND AND OBJECTIVE: This phase 1 study evaluated the safety and tolerability of single intravitreous injections (IVIs) of ICON-1 (Iconic Therapeutics, South San Francisco, CA) in patients with neovascular age-related macular degeneration (nAMD). ICON-1 is a modified factor VIIa protein linked with the Fc portion of a human immunoglobulin G1. The molecule binds tissue factor overexpressed on choroidal neovascularization (CNV) in AMD. PATIENTS AND METHODS: Open-label, interventional, dose-escalation trial in 18 patients with CNV due to AMD, with six patients per dose cohort...
May 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/29770201/recent-advances-in-managing-septal-defects-ventricular-septal-defects-and-atrioventricular-septal-defects
#12
REVIEW
P Syamasundar Rao, Andrea D Harris
This review discusses the management of ventricular septal defects (VSDs) and atrioventricular septal defects (AVSDs). There are several types of VSDs: perimembranous, supracristal, atrioventricular septal, and muscular. The indications for closure are moderate to large VSDs with enlarged left atrium and left ventricle or elevated pulmonary artery pressure (or both) and a pulmonary-to-systemic flow ratio greater than 2:1. Surgical closure is recommended for large perimembranous VSDs, supracristal VSDs, and VSDs with aortic valve prolapse...
2018: F1000Research
https://www.readbyqxmd.com/read/29766640/subclinical-inflammation-phenotypes-and-long-term-outcomes-after-pediatric-kidney-transplantation
#13
Michael E Seifert, Megan V Yanik, Daniel I Feig, Vera Hauptfeld-Dolejsek, Elizabeth C Mroczek-Musulman, David R Kelly, Frida Rosenblum, Roslyn B Mannon
The implementation of surveillance biopsies in pediatric kidney transplantation remains controversial. Surveillance biopsies detect subclinical injury prior to clinical dysfunction, which could allow for early interventions that prolong allograft survival. We conducted a single-center retrospective cohort study of 120 consecutive pediatric kidney recipients, of whom 103 had surveillance biopsies ≤ 6 months post-transplant. We tested the hypothesis that subclinical inflammation (borderline or T cell-mediated rejection without clinical dysfunction) is associated with a 5-year composite endpoint of acute rejection and allograft failure...
May 15, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29765823/the-natural-growth-rate-of-residual-juvenile-angiofibroma
#14
Nicholas R Rowan, Amanda L Stapleton, Molly E Heft-Neal, Paul A Gardner, Carl H Snyderman
Objectives  Examine the postoperative growth rate of residual juvenile angiofibroma (JA) in a large series of patients relative to pediatric growth parameters and other prognostic factors. Establish an algorithm for postoperative surveillance of patients with JA. Design  Retrospective case series. Setting  Tertiary referral academic center. Participants  Pediatric patients undergoing surgical resection of JA between September 2005 and June 2015. Main Outcome Measures  Postoperative recurrence and tumor growth rates...
June 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29763709/fenofibrate-effects-on-carotid-artery-intima-media-thickness-in-adults-with-type-2-diabetes-mellitus-a-field-substudy
#15
Jason A Harmer, Anthony C Keech, Anne-Sophie Veillard, Michael R Skilton, Gerald F Watts, David S Celermajer
AIM: Dyslipidemia in type 2 diabetes contributes to an increased risk of cardiovascular disease. Fenofibrate, a lipid-regulating peroxisome proliferator-activated receptor-α (PPARα) agonist, has been shown to reduce vascular complications in adults with type 2 diabetes. The mechanisms for such benefit, however, are not yet well understood. We examined the effects of fenofibrate on carotid intima-media thickness (IMT), a marker of subclinical atherosclerosis, in adults with type 2 diabetes...
May 12, 2018: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/29763440/endothelium-targeted-delivery-of-dexamethasone-by-anti-vcam-1-saint-o-somes-in-mouse-endotoxemia
#16
Ranran Li, Piotr S Kowalski, Henriëtte W M Morselt, Ilona Schepel, Rianne M Jongman, Adnan Aslan, Marcel H J Ruiters, Jan G Zijlstra, Grietje Molema, Matijs van Meurs, Jan A A M Kamps
Microvascular endothelial cells play a pivotal role in the pathogenesis of sepsis-induced inflammatory responses and multiple organ failure. Therefore, they represent an important target for pharmacological intervention in the treatment of sepsis. Glucocorticosteroids were widely used in the treatment of sepsis but vast evidence to support their systemic use is lacking. The limited effects of glucocorticoids in the treatment of sepsis may be explained by differential effects of drug initiated NF-κB inhibition in different cell types and insufficient drug delivery in target cells...
2018: PloS One
https://www.readbyqxmd.com/read/29761090/the-role-of-vascular-calcification-in-heart-failure-and-cognitive-decline
#17
REVIEW
Hao-Min Cheng, Jiun-Jr Wang, Chen-Huan Chen
Vascular calcification is heterogeneous and triggered by multiple mechanisms. It has been implicated in the development of heart failure with preserved ejection fraction (HFpEF) and cognitive function impairment. Understanding the pathophysiology of vascular calcification may help us improve the management of HFpEF, atherosclerosis, accelerated arterial stiffness, hypertension, and cognitive dysfunction. Currently, there are no effective strategies for treating accelerated arterial stiffness. This may indicate that once arterial stiffness or vascular calcification has developed, it may be less likely to stop the ongoing pathophysiology...
March 2018: Pulse (Basel, Switzerland)
https://www.readbyqxmd.com/read/29761088/vascular-aging-and-cognitive-dysfunction-silent-midlife-crisis-in-the-brain
#18
REVIEW
Chen-Hua Lin, Hao-Min Cheng, Shao-Yuan Chuang, Chen-Huan Chen
Background: Vascular aging may cause cerebral microvascular damage and cognitive dysfunction. There is incremental evidence that consistently implicates arterial stiffness being involved in the manifestation of cognitive impairment in the elderly. However, few investigations have examined the relationship between arterial stiffness and cognitive impairment in midlife. Summary: Past studies inconsistently showed improved cognitive outcomes after antihypertensive therapy in elderly populations...
March 2018: Pulse (Basel, Switzerland)
https://www.readbyqxmd.com/read/29760308/cardiovascular-outcome-and-mortality-in-patients-undergoing-endovascular-treatment-for-symptomatic-peripheral-artery-disease-short-term-results-of-the-toma-code-registry
#19
Michiaki Higashitani, Yukari Uemura, Atsushi Mizuno, Makoto Utsunomiya, Tetsuo Yamaguchi, Akihiro Matsui, Shunsuke Ozaki, Kazuki Tobita, Atsushi Tosaka, Akitsugu Oida, Kenji Suzuki, Takahide Kodama, Kentaro Jujo, Tatsuki Doijiri, Yasuhiro Takahashi, Shunsuke Matsuno, Nobuhito Kaneko, Akira Moriguchi, Shohei Kishi, Hitoshi Anzai
BACKGROUND: The present study was performed to clarify whether the preoperative clinical symptoms for endovascular therapy (EVT) can predict post-EVT death and cardiovascular prognosis in Japanese patients with peripheral artery disease (PAD), including acute disease.Methods and Results:The TOkyo taMA peripheral vascular intervention research COmraDE (Toma-Code) Registry is a Japanese prospective cohort of 2,321 consecutive patients with PAD treated with EVT, in 34 hospitals in the Kanto and Kōshin'etsu regions, from August 2014 to August 2016...
May 11, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29758936/evaluation-of-integrated-color-coded-perfusion-analysis-for-contrast-enhanced-ultrasound-ceus-after-percutaneous-interventions-for-malignant-liver-lesions-first-results
#20
I Wiesinger, L P Beyer, N Zausig, N Verloh, P Wiggermann, C Stroszczynski, E M Jung
BACKGROUND:  With the rising number of percutaneous ablation therapies in malignant liver lesions there is a need of reliable diagnostics after the intervention to differentiate between reactive changes and tumor. PURPOSE: To assess the success of percutaneous ablation therapies for malignant liver lesions using CEUS with perfusion analysis. MATERIAL AND METHODS: Retrospective analysis of perfusion analysis for 67 patients with 94 malignant liver lesions, treated with ablation therapies...
2018: Clinical Hemorheology and Microcirculation
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