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Aorta anesthesia

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https://www.readbyqxmd.com/read/28970203/activation-pattern-of-ace2-ang-1-7-and-ace-ang-ii-pathway-in-course-of-heart-failure-assessed-by-multiparametric-mri-in-vivo-in-tg%C3%AE-q-44-mice
#1
Urszula Tyrankiewicz, Mariola Olkowicz, Tomasz Skorka, Magdalena Jablonska, Anna Orzyłowska, Anna Bar, MichaL Gonet, Piotr Berkowicz, Krzysztof Jasinski, Jerzy A Zoladz, Ryszard T Smolenski, Stefan Chlopicki
Here we analyzed systemic (plasma) and local (heart/aorta) changes in ACE/ACE-2 balance in Tgαq*44 mice in course of heart failure (HF). Tgαq*44 mice with cardiomyocyte specific Gαq overexpression and late onset of HF were analyzed at different age for angiotensin pattern in plasma, heart and aorta using liquid chromatography/mass spectrometry, for progression of HF by in vivo magnetic resonance imaging under isoflurane anesthesia and for exercise capacity by voluntary wheel running. Six-month-old Tgαq*44 mice displayed decreased ventricle radial strains and impaired left atrial function...
September 28, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28890066/ascending-aorta-endovascular-repair-of-a-symptomatic-penetrating-atherosclerotic-ulcer-with-a-custom-made-endo-graft
#2
Theodoros Kratimenos, Nikolaos G Baikoussis, Dimitrios Tomais, Michalis Argiriou
BACKGROUND: Thoracic endovascular aortic repair (TEVAR) has become lately the procedure of choice in the treatment of most pathologies of descending thoracic aorta. Aortic arch aneurysms also came to be treated by TEVAR with various hybrid techniques or custom made scalloped/fenestrated stent-grafts. Zone 0; ascending TEVAR is more challenging than TEVAR of the descending thoracic aorta or aortic arch because of the more complex pathology, hemodynamics, and anatomy. Ascending TEVAR can be a lifesaving treatment in selected high surgical risk patients...
September 7, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28887248/positive-impact-of-an-aortic-center-designation
#3
Adam Tanious, Mathew Wooster, Marcelo Giarelli, Paul A Armstrong, Brad Johnson, Karl A Illig, Bruce Zwiebel, Lawrence S Grundy, Robert Hooker, Christiano Caldeira, Martin A Back, Murray L Shames
BACKGROUND: In January 2015, we created a multidisciplinary Aortic Center with the collaboration of Vascular Surgery, Cardiac Surgery, Interventional Radiology, Anesthesia and Hospital Administration. We report the initial success of creating a Comprehensive Aortic Center. METHODS: All aortic procedures performed from January 1, 2015 until December 31, 2016 were entered into a prospectively collected database and compared with available data for 2014. Primary outcomes included the number of all aortic related procedures, transfer acceptance rate, transfer time, and proportion of elective/emergent referrals...
September 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28820420/alterations-in-placenta-redox-status-during-experimental-model-of-hypoxia-induced-preeclampsia
#4
A Sharashenidze, L Panchulidze, T Sanikidze
An important pathogenetic link of preeclampsia (PE) is hypoxia of uterine-placental tissues, accompanied by damage of the vascular endothelium and the release of vasoactive mediators, violate vascular tone and microcirculation in the maternal organism and placenta and development of a number of pathological processes in the mother's and fetus body. The aim of the study was to establish metabolic abnormalities of oxidative metabolism of the placenta during experimental model of PE (uterine/placental hypoxia)...
July 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28743341/-effect-of-external-abdominal-aorta-compression-on-circulation-during-anesthesia-induction-in-elderly-patients
#5
Xiuman Li, Lixiang Wang
OBJECTIVE: To investigate the effect of external abdominal aorta compression on circulation during anesthetic induction in elderly patients. METHODS: A prospective randomized controlled trial was conducted. Patients with age of 60-75 years old, requiring a general anesthesia for non-abdominal surgery, and with II-III class of American Society of Anesthesiologists (ASA) physical status classification, and admitted to General Hospital of Chinese People's Armed Police Forces from January to April in 2017 were enrolled...
July 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28742797/a-comparison-of-selective-aortic-arch-perfusion-and-resuscitative-endovascular-balloon-occlusion-of-the-aorta-for-the-management-of-hemorrhage-induced-traumatic-cardiac-arrest-a-translational-model-in-large-swine
#6
RANDOMIZED CONTROLLED TRIAL
Ed B G Barnard, James E Manning, Jason E Smith, Jason M Rall, Jennifer M Cox, James D Ross
BACKGROUND: Survival rates remain low after hemorrhage-induced traumatic cardiac arrest (TCA). Noncompressible torso hemorrhage (NCTH) is a major cause of potentially survivable trauma death. Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) at the thoracic aorta (Zone 1) can limit subdiaphragmatic blood loss and allow for IV fluid resuscitation when intrinsic cardiac activity is still present. Selective Aortic Arch Perfusion (SAAP) combines thoracic aortic balloon hemorrhage control with intra-aortic oxygenated perfusion to achieve return of spontaneous circulation (ROSC) when cardiac arrest has occurred...
July 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28702876/cardiovascular-histopathology-of-a-11-year-old-with-mucopolysaccharidosis-vii-demonstrates-fibrosis-macrophage-infiltration-and-arterial-luminal-stenosis
#7
Valerie Lew, Louis Pena, Robert Edwards, Raymond Y Wang
Mucopolysaccharidosis type VII (MPS VII) is caused by β-glucuronidase deficiency, resulting in lysosomal accumulation of glycosaminoglycans (GAGs) and multisystemic disease. We present cardiovascular gross and histopathology findings from a 11-year-old MPS VII male, who expired after developing ventricular fibrillation following anesthesia induction. Gross anatomic observations were made at autopsy; postmortem formalin-fixed paraffin-embedded samples of the carotid artery, aorta, myocardium, and valves were sectioned and stained with hematoxylin-eosin, Verhoeff-Van Gieson, CD68, and trichrome stains...
July 13, 2017: JIMD Reports
https://www.readbyqxmd.com/read/28697490/the-influence-of-blood-pressure-on-fetal-aortic-distensibility-an-animal-validation-study
#8
Christoph Wohlmuth, Kenneth J Moise, Ramesha Papanna, Ciprian Gheorghe, Anthony Johnson, Yisel Morales, Helena M Gardiner
BACKGROUND/AIMS: Aortic distension waveforms describe the change in diameter or cross-sectional area over the cardiac cycle. We aimed to validate the association of aortic fractional area change (AFAC) with blood pressure (BP) in a fetal lamb model. METHODS: Four pregnant ewes underwent open fetal surgery under general anesthesia at 107-120 gestational days. A 4-Fr catheter was introduced into the fetal femoral artery and vein, or the carotid artery and jugular vein...
July 12, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28689951/spot-stenting-of-supra-aortic-branch-vessels-for-residual-type-a-dissection
#9
Ciro Ferrer, Raffaele Grande, Luigi Venturini, Valerio Scarano Catanzaro, Gabriele Maritati, Luca di Marzo
The purpose of this report was to describe the exclusion of the false lumen in a residual type A aortic dissection (TAAD) by the deployment of 2 covered stents: one in the right common carotid artery (RCCA) and one in the left subclavian artery (LSA). A 77-year-old female, already treated with ascending aorta replacement for acute TAAD, was referred to our center for a 97-mm post-dissection arch aneurysm. A computed tomography angiography (CTA) showed false lumen patency by reperfusion from secondary tears located at the level of RCCA and LSA...
July 6, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28669955/-establishment-of-a-modified-rabbit-model-of-acute-lung-injury-induced-by-cardiopulmonary-bypass
#10
Quan Bao, Xiao-Yang Hong, Jing Tang, Gang Wang, Xi Chen, Zai-Sheng Qin
OBJECTIVE: To establish an modified rabbit model of the acute lung injury induced by cardiopulmonary bypass (CPB) with ascending aorta and right atrium catheterization and detect the changes in serum tumor necrosis factor-α (TNF-α) level after modeling. METHODS: Ten healthy adult male New Zealand rabbits were randomly selected to establish CPB models. The model establishment was deemed successful if the rabbits survived for over 4 h with stable heart beat after termination of CPB...
June 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28647662/microsurgical-bypass-training-rat-model-part-1-technical-nuances-of-exposure-of-the-aorta-and-iliac-arteries
#11
Ali Tayebi Meybodi, Michael T Lawton, Pooneh Mokhtari, Sonia Yousef, Sirin Gandhi, Arnau Benet
BACKGROUND AND OBJECTIVE: Animal models using rodents are frequently used for the purpose of practicing microvascular anastomosis - an essential technique in cerebrovascular surgery. However, safely and efficiently exposing rat's target vessels is technically difficult. Such difficulty may lead to excessive hemorrhage and shorten animal survival. This limits the ability to perform multiple anastomoses on a single animal and may increase the overall training time and costs. We report our model for microsurgical bypass training in rodents in two consecutive articles...
June 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28642176/microsurgical-bypass-training-rat-model-part-2-anastomosis-configurations
#12
Ali Tayebi Meybodi, Michael T Lawton, Sonia Yousef, Pooneh Mokhtari, Sirin Gandhi, Arnau Benet
BACKGROUND: Mastery of microsurgical anastomosis is key to achieving good outcomes in cerebrovascular bypass procedures. Animal models (especially rodents) provide an optimal pre-clinical bypass training platform. However, the existing models for practicing different anastomosis configurations have several limitations. OBJECTIVE: We sought to optimize the use of the rat's abdominal aorta and common iliac arteries (CIA) for practicing the 3 main anastomosis configurations commonly used in cerebrovascular surgery...
June 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28553761/innominate-artery-aneurysm-how-to-solve-it
#13
Xiao-Long Wang, Xin-Liang Guan, Wen-Jian Jiang, Ou Liu, Hong-Jia Zhang
We herein describe our *These authors contributed equally to this work. experience with a congenital innominate artery aneurysm (IAA) that was managed with a simple surgical procedure. A 44-year-old woman was admitted for chest distress. Computed tomography angiography showed a 3.6-cm IAA arising from the aortic arch and compressing the trachea. A median sternotomy was performed with the patient under general anesthesia, and the IAA was found to involve the origin of the innominate artery and the bifurcation of the right subclavian artery and common carotid artery; however, the aorta was intact...
June 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28450677/intra-arterial-contrasted-cone-beam-computed-tomography-assessment-of-vessels-distal-from-occluded-site-in-acute-ischemic-stroke-with-major-vessel-occlusion
#14
Tatsuo Amano, Masayuki Sato, Yuji Matsumaru, Hideyuki Sakuma, Syogo Yoda, Yusuke Hamada
Characterization of vessels distal from occluded site is important when considering endovascular revascularization therapy (EVT) for acute ischemic stroke. The goal of this study was to assess the clinical value of intra-arterial contrasted high-resolution cone-beam computed tomography from the ascending aorta (Ao-CBCT) for visualization of the vessels distal from occluded site. Acute ischemic stroke patients with large vessel occlusion who were to undergo EVT were evaluated. In EVT, digital subtraction angiography (DSA) and Ao-CBCT were performed with local anesthesia...
June 15, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28287528/ultrasound-based-pulse-wave-velocity-evaluation-in-mice
#15
Nicole Di Lascio, Claudia Kusmic, Francesco Stea, Francesco Faita
Arterial stiffness can be evaluated by calculating pulse wave velocity (PWV), i.e., the speed with which the pulse wave travels in a conduit vessel. This parameter is being increasingly investigated in small rodent models in which it is used for assessing alterations in vascular function related to particular genotypes/treatments or for characterizing cardiovascular disease progression. This protocol describes an image processing algorithm which leads to non-invasive arterial PWV measurement in mice using ultrasound (US) images only...
February 14, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28285473/a-modern-case-series-of-resuscitative-endovascular-balloon-occlusion-of-the-aorta-reboa-in-an-out-of-hospital-combat-casualty-care-setting
#16
Justin D Manley, Benjamin J Mitchell, Joseph J DuBose, Todd E Rasmussen
BACKGROUND: Resuscitative endovascular balloon occlusion of the aorta (REBOA) is used to mitigate bleeding and sustain central aortic pressure in the setting of shock. The ER-REBOA™ catheter is a new REBOA technology, previously reported only in the setting of civilian trauma and injury care. The use of REBOA in an out-of-hospital setting has not been reported, to our knowledge. METHODS: We present a case series of wartime injured patients cared for by a US Air Force Special Operations Surgical Team at an austere location fewer than 3km (5-10 minutes' transport) from point of injury and 2 hours from the next highest environment of care-a Role 2 equivalent...
December 0: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
https://www.readbyqxmd.com/read/28235521/aneurysmal-hemorrhage-in-a-pregnant-patient-with-coarctation-of-aorta-an-anesthetic-challenge
#17
G S Tomar, K Goyal, R Chandran, A Luthra, V Chauhan, N Kumar
A 25years old female patient with pregnancy of 16weeks (G2 P1), diagnosed to have distal anterior cerebral artery aneurysm (DACA) with Hunt & Hess grade I, subarachnoid hemorrhage (SAH) and coexisting atretic type of aortic coarctation posted for aneurysmal clipping under general anesthesia is a challenge to anesthesiologists in perioperative period. Hypertensive surges in a pregnant patient may result in rupture of aneurysms. Mortality in the mothers with CoA has been reported to be in the range of 0 to 9%...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28111104/associated-risk-factors-and-complications-in-vascular-surgery-patients-requiring-unplanned-postoperative-reintubation
#18
Ethan Y Brovman, Talora L Steen, Richard D Urman
OBJECTIVE: To determine the frequency of reintubation within 30 days in vascular surgery patients and the associated risk factors and complications. DESIGN: Retrospective cohort study with univariate and multivariate analyses of risk factors and outcomes from data collected by the American College of Surgeons National Surgical Quality Improvement Program. SETTING: All institutions participating in the American College of Surgeons National Surgical Quality Improvement Program...
April 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28076620/intraperitoneal-administration-of-silymarin-protects-end-organs-from-multivisceral-ischemia-reperfusion-injury-in-a-rat-model
#19
Aydemir Koçarslan, Sezen Koçarslan, Mehmet Salih Aydin, Şamil Gunay, Mahmut Alp Karahan, Abdullah Taşkın, Murat Üstunel, Nurten Aksoy
Objective: To determine whether intraperitoneal silymarin administration has favorable effects on the heart, lungs, kidney, and liver and on oxidative stress in a rat model of supraceliac aorta ischemia/reperfusion injury. Methods: Thirty male Wistar albino rats were divided equally into three groups: sham, control, and silymarin. The control and silymarin groups underwent supraceliac aortic occlusion for 45 min, followed by a 60 min period of reperfusion under terminal anesthesia...
November 2016: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/27980234/effects-of-postural-change-on-transesophageal-echocardiography-views-and-parameters-in-healthy-dogs
#20
Seijirow Goya, Tomoki Wada, Kazumi Shimada, Daiki Hirao, Ryuji Fukushima, Norio Yamagishi, Miki Shimizu, Ryou Tanaka
The purpose of the present study is to investigate the effect of postural change on transesophageal echocardiography (TEE) views and parameters of interest anesthesia monitoring in healthy dogs. Twelve Beagle dogs were anesthetized and randomly positioned in one of four postures: right lateral-recumbency, left lateral-recumbency, supine position and prone position. After examinations in one posture, the same examination was demonstrated in another posture and repeated in all postures. In each posture, several standard TEE views were demonstrated: longitudinal cranial-esophageal aorta long-axis-view, transverse middle-esophageal mitral valve long-axis-view and transgastric middle short-axis-view...
February 28, 2017: Journal of Veterinary Medical Science
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