keyword
MENU ▼
Read by QxMD icon Read
search

Systemic Right Ventricle

keyword
https://www.readbyqxmd.com/read/28096864/feline-dirofilariosis-due-to-dirofilaria-immitis-in-meshkin-shahr-district-northwestern-iran
#1
Mahya Khodabakhsh, Abdolali Malmasi, Mehdi Mohebali, Zabihollah Zarei, Eshrat Beigom Kia, Amrollah Azarm
BACKGROUND: Dirofilaria immitis is a common nematode of the cardiovascular system, which infects carnivores all over the world. The infection is prevalent in dogs, but in cats and human is rare. Dirofilariosis is transmitted by mosquitoes. Cats are accidental hosts and are naturally resistant to the infection, compared to the dogs. Mild infection can cause severe illness in cats and may lead to death, so it is clinically important to diagnose the disease. METHODS: In the present study, 103 stray cats were collected from Meshkin Shahr district, Aradabil Province, northwestern Iran that is an endemic area for canine dirofilariosis...
April 2016: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28088601/mid-term-outcomes-in-patients-with-congenitally-corrected-transposition-of-the-great-arteries-a-single-center-experience
#2
Luis E De León, Carlos M Mery, Raymond A Verm, Daniel Trujillo-Díaz, Ankita Patro, Francisco A Guzmán-Pruneda, Iki Adachi, Jeffrey S Heinle, Lauren C Kane, E Dean McKenzie, Charles D Fraser
INTRO: The optimal management of patients with congenitally-corrected transposition of the great arteries (ccTGA) is unclear. The goal of this study was to compare the outcomes in patients with ccTGA undergoing different management strategies. METHODS: Patients with ccTGA believed suitable for biventricular circulation treated in 1995-2016 were included. The cohort was divided into four groups: systemic right ventricle (RV) (patients without surgical intervention or with a classic repair), anatomic repair, Fontan palliation, and patients only receiving a pulmonary artery band (PAB) or a shunt...
January 11, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28079844/serum-interleukin-6-in-systemic-sclerosis-and-its-correlation-with-disease-parameters-and-cardiopulmonary-involvement
#3
Rasha A Abdel-Magied, Shereen R Kamel, Azza Farag Said, Hazem M Ali, Ehab A Abdel Gawad, Mahmoud M Moussa
OBJECTIVE: To assess serum interleukin-6 (IL-6)level in patients with systemic sclerosis (SSc) and its correlations with European Scleroderma Study Group activity score (EUSTAR), Scleroderma Assessment Questionnaire (SAQ), disability index and cardiopulmonary involvement. METHODS: Twenty SSc patients and 10 matched healthy controls were included. Serum IL-6 was measured in patients and controls. Disease activity, status,and disability were assessed.Cardiopulmonary involvement was evaluated by pulmonary function tests (PFTs), six minute walk test, echocardiography, and high resolution computed tomography (HRCT) of chest...
December 23, 2016: Sarcoidosis, Vasculitis, and Diffuse Lung Diseases: Official Journal of WASOG
https://www.readbyqxmd.com/read/28070997/involvement-of-endothelial-progenitor-cells-in-the-formation-of-plexiform-lesions-in-broiler-chickens-possible-role-of-local-immune-inflammatory-response
#4
Xun Tan, Fan-Guo Juan, Ali Q Shah
Plexiform lesions (PLs), which are often accompanied by perivascular infiltrates of mononuclear cells, represent the hallmark lesions of pulmonary arteries in humans suffering from severe pulmonary arterial hypertension (PAH). Endothelial progenitor cells (EPCs) have been recently implicated in the formation of PLs in human patients. PLs rarely develop in rodent animal models of PAH but can develop spontaneously in broiler chickens. The aim of the present study was to confirm the presence of EPCs in the PLs in broilers...
2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/28060112/spontaneous-fracture-and-migration-of-a-totally-implanted-port-device-to-pulmonary-artery-in-acute-leukemia-child
#5
Olfa Kassar, Rania Hammemi, Mahdi Ben Dhaou, Samir Kammoun, Moez Elloumi
Totally implanted port devices are important for the administration of fluid and chemotherapeutic agents. However, their use may be associated with serious complications, such as catheter fracture and embolism. Most data on port catheter embolization consist of isolated case reports. We report a 6-year-old boy with relapse of an acute lymphoblastic leukemia. He presented with dysfunction of his totally implanted port device. Radiologic examination revealed a catheter fracture. Echocardiography showed the catheter embolized into the right ventricle...
January 5, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28059905/functional-tricuspid-regurgitation-model-in-a-beating-heart-platform
#6
Michal Jaworek, Marco Piola, Federico Lucherini, Guido Gelpi, Marco Castagna, Giuliana Lentini, Carlo Antona, Gianfranco B Fiore, Riccardo Vismara
Currently, clinicians are seeking new, minimally invasive treatment options for functional tricuspid regurgitation (FTR). Challenging tricuspid complexity requires the evaluation of the treatment techniques in adequate and realistic preclinical scenario. The purpose of this paper is to describe the design and functional assessment of a novel passive beating heart model of the pulmonary circulation with the possibility to tightly control FTR.The model housed porcine hearts actuated by a volumetric pump that cyclically pressurized the right ventricle...
January 3, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28057053/a-pig-model-of-acute-right-ventricular-afterload-increase-by-hypoxic-pulmonary-vasoconstriction
#7
Kathrine Knai, Nils Kristian Skjaervold
BACKGROUND: The aim of this study was to construct a non-invasive model for acute right ventricular afterload increase by hypoxic pulmonary vasoconstriction. Intact animal models are vital to improving our understanding of the pathophysiology of acute right ventricular failure. Acute right ventricular failure is caused by increased afterload of the right ventricle by chronic or acute pulmonary hypertension combined with regionally or globally reduced right ventricular contractile capacity...
January 3, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28055859/right-ventricular-strain-torsion-and-dyssynchrony-in-healthy-subjects-using-3d-spiral-cine-dense-magnetic-resonance-imaging
#8
Jonathan Suever, Gregory Wehner, Linyuan Jing, David Powell, Sean Hamlet, Jonathan Grabau, Dimitri Mojsejenko, Kristin Andres, Christopher Haggerty, Brandon Fornwalt
Mechanics of the left ventricle (LV) are important indicators of cardiac function. The role of right ventricular (RV) mechanics is largely unknown due to the technical limitations of imaging its thin wall and complex geometry and motion. By combining 3D Displacement Encoding with Stimulated Echoes (DENSE) with a post-processing pipeline that includes a local coordinate system, it is possible to quantify RV strain, torsion, and synchrony. In this study, we sought to characterize RV mechanics in 50 healthy individuals and compare these values to their LV counterparts...
December 29, 2016: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28054287/cerebral-ventricular-dimensions-after-decompressive-craniectomy-a-comparison-between-bedside-sonographic-duplex-technique-and-cranial-computed-tomography
#9
Habib Bendella, Marc Maegele, Alexander Hartmann, Joachim Spreer, Nadine Rommel, Rolf Lefering, Makoto Nakamura, Alhadi Igressa
BACKGROUND: The objective of this study was to assess and compare ventricle diameters in patients after decompressive craniectomy by using cranial computed tomography (CCT) versus sonographic duplex technique (SDT). METHODS: A total of 102 consecutive patients after decompressive craniectomy following brain infarct, bleeding and trauma were examined by CCT and SDT. SDT was performed within 24 h after repeated postinterventional control CCT and the correlation between both methods was assessed via measurement of dimensions of all four ventricles...
January 4, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/28043677/pressure-volume-loop-derived-cardiac-indices-during-dobutamine-stress-a-step-towards-understanding-limitations-in-cardiac-output-in-children-with-hypoplastic-left-heart-syndrome
#10
James Wong, Kuberan Pushparajah, Adelaide de Vecchi, Bram Ruijsink, Gerald F Greil, Tarique Hussain, Reza Razavi
BACKGROUND: Children with a single systemic right ventricle, such as in hypoplastic left heart syndrome (HLHS), frequently experience reduced exercise capacity. Elucidating the causes could help with optimising treatment strategies. METHODS: Prospective data from 10 consecutive symptomatic patients with HLHS undergoing clinical cardiac magnetic resonance with catheterisation (XMR) were analysed. Mean age 8.6years (range 3.5-11.6years), mean time since Fontan completion 5...
December 22, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28039410/effects-of-novel-muscarinic-m3-receptor-ligand-c1213-in-pulmonary-arterial-hypertension-models
#11
Mohamed Ahmed, Sonya VanPatten, Satyan Lakshminrusimha, Hardik Patel, Thomas R Coleman, Yousef Al-Abed
Pulmonary hypertension (PH) is a complex disease comprising a pathologic remodeling and thickening of the pulmonary vessels causing an after load on the right heart ventricle that can result in ventricular failure. Triggered by oxidative stress, episodes of hypoxia, and other undetermined causes, PH is associated with poor outcomes and a high rate of morbidity. In the neonate, this disease has a similar etiology but is further complicated by the transition to breathing after birth, which requires a reduction in vascular resistance...
December 2016: Physiological Reports
https://www.readbyqxmd.com/read/28024557/acute-right-ventricle-failure-in-the-intensive-care-unit-assessment-and-management
#12
REVIEW
Carmen Hrymak, Johann Strumpher, Eric Jacobsohn
Caring for the critically ill patient with acute right ventricle (RV) failure is a diagnostic and management challenge. A thorough understanding of normal RV anatomy and physiology is essential to manage RV failure. Despite the fact that the RV is essentially a volume chamber that ejects into a low-pressure system, the left ventricle contributes significantly to RV function through maintenance of the transseptal gradient (TSG). Preserving systemic mean arterial pressure maintains the TSG and RV perfusion. Various pathological states cause acute RV failure by decreasing the TSG and RV perfusion and/or increasing pulmonary vascular resistance...
January 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28011346/bucindolol-improves-right-ventricle-function-in-rats-with-pulmonary-arterial-hypertension-through-the-reversal-of-autonomic-imbalance
#13
Bruna Gazzi de Lima-Seolin, Rafael Colombo, Jéssica Hellen Poletto Bonetto, Rayane Brinck Teixeira, Luiza Mezzomo Donatti, Karina Rabello Casali, Alessandra Eifler Guerra Godoy, Isnard Elman Litvin, Paulo Cavalheiro Schenkel, Alex Sander da Rosa Araujo, Adriane Belló-Klein
Pulmonary arterial hypertension (PAH) is characterised by an elevation in afterload imposed on the right ventricle (RV), leading to hypertrophy and failure. The autonomic nervous system (ANS) plays a key role in the progression to heart failure, and the use of beta-blockers attenuates this process. The aim of this study was to verify the role of bucindolol, aβ1-, β2- and α1-blocker, on the ANS, and its association with RV function in rats with PAH. Male Wistar rats were divided into four groups: control, monocrotaline, control+bucindolol, and monocrotaline+bucindolol...
December 20, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28007868/systemic-right-ventricular-morphology-in-the-early-postoperative-course-after-extracardiac-fontan-operation-is-there-still-a-need-for-special-care
#14
Sarah Nordmeyer, Melanie Rohder, Johannes Nordmeyer, Oliver Miera, Björn Peters, Mi-Young Cho, Joachim Photiadis, Felix Berger, Stanislav Ovroutski
OBJECTIVES: We aimed to compare early postoperative outcome after extracardiac (EC) Fontan operation between patients with right (RV) or left (LV) systemic ventricles. METHODS: In total, 173 consecutive patients (median age 4 years, median weight 14 kg) underwent EC Fontan between 1995 and 2013. Pre- and intraoperative data as well as detailed postoperative haemodynamic variables were compared between patients with LV [n = 109 (63%)] and RV [n = 64 (37%)]...
December 22, 2016: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/27989060/acute-invasive-hemodynamic-effects-of-transcatheter-aortic-valve-replacement
#15
Michael Chrissoheris, Antonis Ziakas, Antonis Chalapas, Stavros Chadjimiltiades, Ioannis Styliades, Charalambos Karvounis, Ioulia Nikolaou, Konstantinos Spargias
BACKGROUND: Aortic stenosis imposes a chronic pressure overload on the left ventricle, with attendant adaptations in hemodynamics, muscle mass and performance. The hemodynamic changes that occur during the initial 24 h following abrupt removal of the impediment to left ventricular outflow have not been previously examined. METHODS: A total of 52 patients with right heart catheterization was evaluated before, within 6 h and at 24 h after successful transcatheter aortic valve replacement (TAVR)...
March 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/27987352/design-of-a-right-ventricular-mock-circulation-loop-as-a-test-bench-for-right-ventricular-assist-devices
#16
Indra Mueller, So-Hyun Jansen-Park, Michael Neidlin, Ulrich Steinseifer, Dirk Abel, Rüdiger Autschbach, Rolf Rossaint, Thomas Schmitz-Rode, Simon Johannes Sonntag
Right heart failure (RHF), e.g. due to pulmonary hypertension (PH), is a serious health issue with growing occurrence and high mortality rate. Limited efficacy of medication in advanced stages of the disease constitutes the need for mechanical circulatory support of the right ventricle (RV). An essential contribution to the process of developing right ventricular assist devices (RVADs) is the in vitro test bench, which simulates the hemodynamic behavior of the native circulatory system. To model healthy and diseased arterial-pulmonary hemodynamics in adults (mild and severe PH and RHF), a right heart mock circulation loop (MCL) was developed...
December 17, 2016: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/27982543/in-vivo-bioluminescence-imaging-using-orthotopic-xenografts-towards-patient-s-derived-xenograft-medulloblastoma-models
#17
Fatemeh Asadzadeh, Veronica Ferrucci, Pasqualino DE Antonellis, Massimo Zollo
BACKGROUND: Medulloblastoma is a cerebellar neoplasia of the central nervous system. Four molecular subgrups have been identified (MBWNT, MBSHH, MBgroup3 and MBgroup4) with distinct genetics and clinical outcome. Among these, MBgroup3-4 are highly metastatic with the worst prognosis. The current standard therapy includes surgery, radiation and chemotherapy. Thus, specific treatments adapted to cure those different molecular subgroups are needed. The use of orthotopic xenograft models, together with the non-invasive in vivo biolumiscence imaging (BLI) technology, is emerging during preclinical studies to test novel therapeutics for medulloblastoma treatment...
March 2017: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/27981916/incorrect-ventricular-lead-placement-into-the-systemic-right-ventricle-of-a-patient-with-d-transposition-of-the-great-vessels-after-mustard-procedure
#18
Adam W Powell, Thomas R Kimball
Incorrect pacemaker lead placement into the systemic ventricle is a complication that has rarely been described in patients with D-transposition status after atrial baffle palliation. We present a case of ventricular lead misplacement in the systemic right ventricle of a patient with D-transposition of the great arteries after Mustard procedure. This case demonstrates the challenges with proper imaging of lead placement in patients with atrial baffles and long-term management of a lead in the systemic ventricle...
August 30, 2016: Cardiology in the Young
https://www.readbyqxmd.com/read/27957495/increased-activity-of-the-intracardiac-oxytocinergic-system-in-the-development-of-postinfarction-heart-failure
#19
Agnieszka Wsol, Kaja Kasarello, Marek Kuch, Kamila Gala, Agnieszka Cudnoch-Jedrzejewska
Aim. The present study was designed to test the hypothesis that the development of postinfarction heart failure is associated with a change of activity of the intracardiac oxytocinergic system. Methods. Experiments were performed on male Sprague-Dawley rats subjected to myocardial infarction or sham surgery. Four weeks after the surgery, blood samples were collected and the samples of the left ventricle (LV) and right ventricle (RV) were harvested for evaluation of the mRNA expression (RT-PCR) of oxytocin (OT), oxytocin receptor (OTR), natriuretic peptides, and the level of OT and OTR protein (ELISA)...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27932748/-hydrocephalus-associated-with-small-clinoidal-meningioma-that-resolved-after-tumor-removal-a-case-report
#20
Hidemoto Fujiwara, Toyotaka Aiba, Toru Watanabe, Tetsuya Hiraishi, Yukihiko Fujii
PURPOSE: Small meningiomas causing hydrocephalus without obstruction of the ventricular system are rare. Herein, we report a case of small clinoidal meningioma with communicating hydrocephalus, which resolved after tumor removal. CASE PRESENTATION: A 70-year-old woman presented with a 1-month history of memory disturbance followed by gait disturbance. MR images revealed a right clinoidal meningioma, 2 cm in diameter, and dilatation of the ventricles suggesting communicating hydrocephalus...
December 2016: No Shinkei Geka. Neurological Surgery
keyword
keyword
25930
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"