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https://www.readbyqxmd.com/read/29787557/extending-the-golden-hour-for-zone-1-reboa-improved-survival-and-reperfusion-injury-with-intermittent-versus-continuous-reboa-in-a-porcine-severe-truncal-hemorrhage-model
#1
John Kuckelman, Morgan Barron, Donald Moe, Michael Derickson, Cody Phillips, Joseph Kononchik, Michael Lallemand, Shannon Marko, Matthew Eckert, Matthew J Martin
BACKGROUND: Non-compressible hemorrhage can be controlled using resuscitative endovascular occlusion of the aorta (REBOA). Prolonged ischemia limits REBOA application during Zone 1 deployment. Intermittent inflation/deflation may effectively mitigate this problem. METHODS: A lethal abdominal vascular injury was created in 28 swine. Animals were randomized to controls (n=7), 60min full REBOA (FR, n=5), time-based intermittent REBOA (iRT, n=7), and pressure-based REBOA (iRP, n=9)...
May 2, 2018: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29785654/a-systematic-review-and-meta-analysis-of-the-use-of-resuscitative-endovascular-balloon-occlusion-of-the-aorta-in-the-management-of-major-exsanguination
#2
REVIEW
B L S Borger van der Burg, Thijs T C F van Dongen, J J Morrison, P P A Hedeman Joosten, J J DuBose, T M Hörer, R Hoencamp
BACKGROUND: Circulatory collapse is a leading cause of mortality among traumatic major exsanguination and in ruptured aortic aneurysm patients. Approximately 40% of patients die before hemorrhage control is achieved. Resuscitative endovascular balloon occlusion of the aorta (REBOA) is an adjunct designed to sustain the circulation until definitive surgical or endovascular repair. A systematic review was conducted for the current clinical use of REBOA in patients with hemodynamic instability and to discuss its potential role in improving prehospital and in-hospital outcome...
May 21, 2018: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/29780894/multiple-re-entry-closures-after-tevar-for-ruptured-chronic-post-dissection-thoraco-abdominal-aortic-aneurysm
#3
R Kinoshita, F Ganaha, J Ito, N Ohyama, N Abe, T Yamazato, H Munakata, K Mabuni, T Kugai
Introduction: Although thoracic endovascular aortic repair (TEVAR) has become a promising treatment for complicated acute type B dissection, its role in treating chronic post-dissection thoraco-abdominal aortic aneurysm (TAA) is still limited owing to persistent retrograde flow into the false lumen (FL) through abdominal or iliac re-entry tears. Report: A case of chronic post-dissection TAA treatment, in which a dilated descending FL ruptured into the left thorax, is described...
2018: EJVES Short Reports
https://www.readbyqxmd.com/read/29780288/the-assessment-of-carbon-dioxide-automated-angiography-in-type-ii-endoleaks-detection-comparison-with-contrast-enhanced-ultrasound
#4
Chiara Mascoli, Gianluca Faggioli, Enrico Gallitto, Vincenzo Vento, Giuseppe Indelicato, Rodolfo Pini, Andrea Vacirca, Andrea Stella, Mauro Gargiulo
Introduction: Iodinated contrast media completion angiography (ICM-A) may underestimate the presence of type II endoleak (ELII) after endovascular aortic repair (EVAR), particularly if they are at low flow. Contrast-enhanced ultrasound (CEUS) has been proposed as the gold standard in ELII detection during EVAR follow-up. Intraprocedural carbon dioxide (CO2 ) angiography has been shown to be useful in this setting; however no comparative studies including these three techniques are currently available...
2018: Contrast Media & Molecular Imaging
https://www.readbyqxmd.com/read/29780061/a-retroaortic-left-renal-vein-in-a-female-cadaver
#5
Yoshiko Fujishima, Koichi Watanabe, Yoko Tabira, Joe Iwanaga, Yui Odo, Tsuyoshi Saga, R Shane Tubbs, Koh-Ichi Yamaki
We encountered a case of retroaortic left renal vein (RLRV) during an anatomical dissection course at our medical school in 2017. The case was a female cadaver who was 88 years old at death. Six roots of the left renal vein (RV) arose from the hilus of the kidney and joined to form one left renal vein, crossed dorsal to the abdominal aorta (AA) at the level of the second lumbar vertebra, and then drained into the inferior vena cava (IVC). Two roots joined at the right renal hilus to become the right RV to then drain into the IVC at the level of the first lumbar vertebral body...
May 21, 2018: Kurume Medical Journal
https://www.readbyqxmd.com/read/29779393/a-new-method-for-visualizing-pulmonary-artery-microvasculature-using-synchrotron-radiation-pulmonary-microangiography-the-measurement-of-pulmonary-arterial-blood-flow-velocity-in-the-high-pulmonary-blood-flow-rat-model
#6
Chiho Tokunaga, Shonosuke Matsushita, Hiroaki Sakamoto, Kazuyuki Hyodo, Misao Kubota, Kenkichi Tanioka, Yuji Hiramatsu
Background Increased pulmonary blood flow (PBF) and shear stress may provoke irreversible vascular remodeling, yet invasive visualization of the microvasculature complicates monitoring. A non-invasive imaging methodology would therefore safely provide mechanistic insights into the progression of high PBF-induced vascular remodeling. Purpose To establish a novel microvasculature visualization method using synchrotron radiation pulmonary microangiography (SRPA) that can also calculate PBF velocity in vivo. Material and Methods A high PBF rat model was established by making a fistula between the abdominal aorta and inferior vena cava...
January 1, 2018: Acta Radiologica
https://www.readbyqxmd.com/read/29777851/point-of-care-ultrasound-performed-by-a-medical-student-compared-to-physical-examination-by-vascular-surgeons-in-the-detection-of-abdominal-aortic-aneurysms
#7
Trinh Mai, Michael Y Woo, Kim Boles, Prasad Jetty
OBJECTIVE: To determine the test characteristics of point-of-care ultrasonography performed by a medical student versus physical examination by vascular surgeons compared to a gold standard reference scan for the detection of abdominal aortic aneurysms. METHODS: We conducted a prospective, observer-blinded study recruiting patients from an outpatient vascular surgery clinic. Participants were screened for abdominal aortic aneurysms by standardized physical examination by a blinded vascular surgeon, followed by a point-of-care ultrasound examination by a blinded medical student...
May 16, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29776376/hybrid-surgery-in-treatment-of-pulmonary-sequestration-with-abdominal-aorta-feeding-vessel-a-case-report
#8
Haining Zhou, Shoujun Tang, Quanshui Fu, Li Yu, Lunxu Liu
BACKGROUND: Pulmonary sequestration is a rare congenital pulmonary dysplasia, which requires surgical resection (either via open thoracotomy or video-assisted thoracoscopic surgery [VATS] or via endoluminal occlusion of the abnormal feeding vessel). CASE PRESENTATION: We described a 51-year-old female patient with a history of recurrent cough and repeated pneumonia. She was referred to our hospital for further work-up of pulmonary sequestration. We performed a hybrid surgery (i...
May 18, 2018: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29775762/aortic-vascular-calcification-is-inversely-associated-with-the-trabecular-bone-score-in-patients-receiving-dialysis
#9
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/29775657/stabilization-of-the-abdominal-aorta-during-the-cardiac-cycle-with-the-sac-anchoring-nellix-device
#10
Nathan K Itoga, Ga-Young Suh, Christopher P Cheng
The Nellix device utilizes polymer filled endobags to stabilize the abdominal aortic aneurysm (AAA) sac described as endovascular aneurysm sealing (EVAS). We analyzed cardiac gated CTA scans of repaired AAA with EVAS in four patients to evaluate geometry and cardiac pulsatility-induced deformation. Graft translation and aortic curvature changes were found to be minimal during the cardiac cycle. The mean±SD changes in renal-aorta angles (1.0±0.9°) were less than the changes in the SMA-aorta angle (4.0±2...
May 15, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29775449/-dodatkowa-t%C3%A4-tnica-nerkowa-przyczyn%C3%A4-skrajnego-wodonercza-u-5-letniego-ch%C3%A5-opca
#11
Grażyna Krzemień, Jarosław Sołtyski, Agnieszka Szmigielska, Stanisław Warchoł, Teresa Dudek-Warchoł, Aleksandra Jakimów-Kostrzewa
Hydronephrosis in children is most often due to an intrinsic ureteropelvic junction obstruction or by compression on ureter by accessory renal artery coming from the aorta to the lower pole of the kidney. AIM: The aim of study was to present a case with a late onset of hydronephrosis caused by accessory renal artery. CASE REPORT: 5-year old boy with a mild pyelectasia during first 10 months of age was admitted to hospital because of abdominal pain and vomiting. Abdominal ultrasound revealed a marked dilatation of the right pelvicalyceal system with renal pelvis measuring 23 mm in anterior-posterior (ap) diameter, enlargement of calyces to 10 mm and narrowed cortex to 5 mm...
April 23, 2018: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29774097/natriuretic-peptides-system-in-the-pulmonary-tissue-of-rats-with-heart-failure-potential-involvement-in-lung-edema-and-inflammation
#12
Emad E Khoury, Safa Kinaneh, Doron Aronson, Offer Amir, Diab Ghanim, Natalia Volinsky, Zaher Azzam, Zaid Abassi
Congestive heart failure (CHF) often leads to progressive cardiac hypertrophy and salt/water retention as evident by peripheral and lung edema. Although the pathogenesis of CHF remains largely unclarified, it is widely accepted that neurohormonal changes and inflammatory processes are profoundly involved in structural and functional deterioration of vital organs including, heart, kidney and lungs. Corin, a cardiac serine protease, is responsible for converting pro-ANP and pro-BNP to biologically active natriuretic peptides (NPs)...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29773102/-over-expression-of-bdnf-inhibits-angiotensin-ii-induced-apoptosis-of-cardiomyocytes-in-sd-rats
#13
Jingli Cao, Yingfeng Wu, Geming Liu, Zhenlong Li
Objective To investigate the role and molecular mechanism of brain-derived neurotrophic factor (BDNF) against the process of cardiomyocyte hypertrophy and apoptosis. Methods Cardiomyocyte hypertrophy were estabolished by angiotensin II (Ang II) in neonatal cardiomyocytes in vitro and incomplete ligature of abdominal aorta of SD rats in vivo. BDNF over-expressing recombinant vector pcDNA5-BDNF was transfected into cardiomyocytes by liposomes. Immunofluorescence staining was used to detect the effect of BDNF transfection on the surface area of myocardial cells...
March 2018: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/29772936/the-effect-of-supine-positioning-on-maternal-hemodynamics-during-late-pregnancy
#14
Aimee Humphries, S Ali Mirjalili, Gregory P Tarr, John M D Thompson, Peter Stone
INTRODUCTION: Recent studies have demonstrated an association between maternal supine sleep position and an increased risk of late stillbirth. During late pregnancy the gravid uterus compresses the inferior vena cava when a woman lies in the supine position. The azygos system of veins is the dominant pathway of collateral venous return back to the heart in the event of acute obstruction of the inferior vena cava. It is suggested that this pathway provides adequate collateral venous circulation in the event of inferior vena caval compression in the supine position during late pregnancy...
May 17, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29772328/current-evidence-on-management-of-aortic-stent-graft-infection-a-systematic-review-and-meta-analysis
#15
REVIEW
Hai Lei Li, Yiu Che Chan, Stephen W Cheng
OBJECTIVE: Aortic stent-graft infection is rare, but remains one of the most challenging and threatening complications. This systematic review aimed to identify the clinical features, treatment and outcomes of endograft infection after abdominal endovascular aortic repair (EVAR) and thoracic endovascular aortic repair (TEVAR). METHODS: A systematic literature review of all published literature from January 1991 to September 2016 on stent-graft infection was performed under the instruction of Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA)...
May 14, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29769427/supplementation-with-camelina-oil-prevents-negative-changes-in-the-artery-in-orchidectomized-rats
#16
M Pawlowska-Olszewska, I Puzio, A P Harrison, L Borkowski, G Tymicki, D Grabos
The aim of the research was to examine the influence of orchidectomy on the elasticity and wall structure of the abdominal aorta in male rats and to check whether camelina oil treatment has an effect on aorta wall characteristics in orchidectomized rats. Forty 2-month-old male Wistar rats were used in the experiment: 10 animals underwent a sham testis repositioning operation (SHO) and 30 rats were orchidectomized (ORX). After the convalescence period, the SHO and ORX1 rats were given physiological saline intragastrically for 8 weeks; simultaneously, the other rats received camelina oil at the dose of 5 g/kg/b...
February 2018: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29766011/use-of-iliac-branch-device-for-endovascular-treatment-for-abdominal-aorta-aneurysm-with-small-diameter-neck
#17
Umberto G Rossi, Davide Santuari, Raffaello Dallatana, Maurizio Cariati
We present the case of a 78-year-old woman with a 4.5-cm symptomatic abdominal aortic aneurysm with a small diameter (13-mm diameter) infrarenal aortic neck who underwent endovascular treatment using an iliac branch device as a bifurcated aortic stent-graft.
December 2017: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/29758327/oxidative-stress-in-aortas-of-patients-with-advanced-occlusive-and-aneurysmal-diseases
#18
Márcio L Lucas, Cristina C Carraro, Adriane Belló-Klein, Antônio N Kalil, Newton R Aerts, Fabiano B Carvalho, Marilda C Fernandes, Claudio G Zettler
BACKGROUND: Aortoiliac occlusive disease (AOD) and abdominal aortic aneurysm (AAA) are very important cardiovascular diseases that present different aspects of pathophysiology; however, oxidative stress and inflammatory response seem be relevant in both of them. Our objective was to evaluate oxidative damage and degree of inflammatory infiltrate in aortas of patients surgically treated of AOD and AAA. MATERIAL AND METHODS: Levels of reactive oxygen species (ROS), NADPH oxidase activity and myeloperoxidase (MPO) expression as so as nitrite levels and superoxide dismutase (SOD) and catalase (CAT) activities were evaluated in aortas of patients with AOD (n=16) or AAA (n=14), while control group was formed by cadaveric organ donors (n=10)...
May 11, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29754727/-identifying-barriers-to-screening-for-abdominal-aortic-aneurysm-in-general-practice-qualitative-study-of-14-general-practitioners-in-paris
#19
J Niclot, A Stansal, O Saint-Lary, I Lazareth, P Priollet
INTRODUCTION: Abdominal aortic aneurysm (AAA) is a silent pathology with often fatal consequences in case of rupture. AAA screening, recommended in France and many other countries, has shown its effectiveness in reducing specific mortality. However, AAA screening rate remains insufficient. OBJECTIVE: To identify barriers to AAA screening in general practice. MATERIAL AND METHOD: Qualitative study carried out during 2016 among general practitioners based in Paris...
May 2018: Journal de Médecine Vasculaire
https://www.readbyqxmd.com/read/29754327/the-many-faces-of-igg4-related-disease-report-of-a-case-with-inaugural-recurrent-aortic-aneurism-ruptures-and-literature-review
#20
REVIEW
Mariana Luís, Luísa Brites, Bruno Fernandes, Diogo Jesus, Tânia Santiago, Sara Serra, João Rovisco, Lina Carvalho, José António P da Silva, Armando Malcata
Vascular involvement in IgG4-related disease (IgG4-RD), is a well-recognized feature and large vessel commitment, especially the aorta, can be the only manifestation of the disease. Being a newly recognized disease, its diagnosis and workup still represents a challenge in clinical practice. A 47-year-old-man with two aortic aneurysms ruptures, one at abdominal and the other at thoracic level, was referred to our rheumatology department. The initial analysis of the surgical specimen obtained 3 years earlier revealed a nonspecific aortitis...
May 12, 2018: Rheumatology International
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