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Right ventricle assessment

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https://www.readbyqxmd.com/read/28929112/imaging-diagnosis-of-right-ventricle-involvement-in-chagas-cardiomyopathy
#1
REVIEW
Minna M D Romano, Henrique T Moreira, André Schmidt, Benedito Carlos Maciel, José Antônio Marin-Neto
Right ventricle (RV) is considered a neglected chamber in cardiology and knowledge about its role in cardiac function was mostly focused on ventricular interdependence. However, progress on the understanding of myocardium diseases primarily involving the RV led to a better comprehension of its role in health and disease. In Chagas disease (CD), there is direct evidence from both basic and clinical research of profound structural RV abnormalities. However, clinical detection of these abnormalities is hindered by technical limitations of imaging diagnostic tools...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28923551/cardiac-melanoma-retrospective-review-of-a-rare-disease-at-the-mayo-clinic-1988-2015
#2
Chung Sang Tse, Nicholas Tan, Dame Idossa, Roger Click
BACKGROUND: Melanoma metastasizing to the heart (cardiac melanoma) is a rare entity that has been described only in autopsy studies or isolated pre-mortem case reports. We aim to better characterize cardiac melanoma, and describe its presenting features, imaging findings, and disease course with a case series collected over nearly 30years. METHODS: We performed a retrospective review of all patients diagnosed with cardiac melanoma at the Mayo Clinic from 1988 to 2015...
September 6, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28913656/new-insights-into-cardiac-involvement-in-juvenile-scleroderma-a-three-dimensional-echocardiographic-assessment-unveils-subclinical-ventricle-dysfunction
#3
Reyhan Dedeoglu, Amra Adroviç, Funda Oztunç, Sezgin Sahin, Kenan Barut, Ozgur Kasapcopur
Cardiac manifestations in juvenile scleroderma or systemic sclerosis (JSSc) have poor prognosis, begin in early stages of the disease, and remain clinically asymptomatic. New echocardiography modalities, such as 2D/3D speckle tracking (STE, strain analysis for regional and global ventricular functions), can detect cardiac involvement in early stages. We assessed 21 JSSc patients and 19 controls using 2D/3D STE. The left ventricular end diastolic volume, end systolic volume, and ejection fraction of the patient and control groups were significantly different (99...
September 14, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28910586/global-and-regional-cardiac-function-in-lifelong-endurance-athletes-with-and-without-myocardial-fibrosis
#4
Thijs M H Eijsvogels, David L Oxborough, Rory O'Hanlon, Sanjay Sharma, Sanjay Prasad, Greg Whyte, Keith P George, Mathew G Wilson
The aim of the present study was to compare cardiac structure as well as global and regional cardiac function in athletes with and without myocardial fibrosis (MF). Cardiac magnetic resonance imaging with late gadolinium enhancement was used to detect MF and global cardiac structure in nine lifelong veteran endurance athletes (58 ± 5 years, 43 ± 5 years of training). Transthoracic echocardiography using tissue-Doppler and myocardial strain imaging assessed global and regional (18 segments) longitudinal left ventricular function...
September 14, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28902643/prevalence-and-characteristics-of-coronary-artery-anomalies-in-children-with-congenital-heart-disease-diagnosed-with-coronary-angiography
#5
Münevver Tuğba Temel, Mehmet Enes Coşkun, Osman Başpınar, Abdullah Tuncay Demiryürek
OBJECTIVE: Aim of the present study was to determine the prevalence of coronary artery anomalies in children with congenital heart disease. METHODS: Data of 1138 consecutive patients who were referred for cardiac catheterization and angiography for assessment of coronary anomaly between January 2005 and December 2009 were retrospectively analyzed. Total of 515 patients whose coronary arteries could be examined through left ventricle and aortic root injection were included in the study...
September 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28900614/echocardiographic-evaluation-of-pulmonary-pressures-and-right-ventricular-function-after-pediatric-cardiac-surgery-a-simple-approach-for-the-intensivist
#6
REVIEW
Maurice Beghetti
Pulmonary hypertension (PH) is diagnosed using cardiac catheterization and is defined as an elevation of mean pulmonary artery pressure (PAP) greater than 25 mmHg. Although invasive hemodynamics remains the gold standard and is mandatory for disease confirmation, transthoracic echocardiography (TTE) is an extremely useful non-invasive and widely available tool that allows for screening and follow-up, in particular, in the acute setting. TTE may be a valuable alternative, allowing for direct measurement and/or indirect assessment of PAP...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28895283/right-ventricle-outflow-tract-prestenting-in-vitro-testing-of-rigidity-and-corrosion-properties
#7
Bjorn Cools, Stephen Brown, Martine Wevers, Jan Van Humbeeck, Derize Boshoff, Cis Verdonckt, Marc Gewillig
BACKGROUND: The aim of this study was to assess the resistance to compression (stiffness) of frequently used stents for right ventricular outflow tract prestenting. In addition, to assess the corrosion potential when different types of stent alloys come into contact with each other. METHOD: Different stents were tested in vitro in various combinations at specialized metallurgic laboratories. A bench compression test was used to assess resistance to compression of singular and joined combinations of stents...
September 12, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28894923/differences-in-myocardial-strain-between-pectus-excavatum-patients-and-healthy-subjects-assessed-by-cardiac-mri-a-pilot-study
#8
André Lollert, Tilman Emrich, Jakob Eichstädt, Christoph Kampmann, Tariq Abu-Tair, Salmai Turial, Christoph Düber, Karl-Friedrich Kreitner, Gundula Staatz
OBJECTIVES: To evaluate differences in myocardial strain between pectus excavatum (PE) patients and healthy subjects (HS) assessed by cardiac MRI using the feature-tracking algorithm. METHODS: Cardiac MRI was performed in 14 PE patients and 14 HS (9:5 male to female in each group; age 11-30 years) using a 3T scanner. Post-examination analysis included manual biventricular contouring with volumetry and ejection fraction measurement by two independent radiologists...
September 11, 2017: European Radiology
https://www.readbyqxmd.com/read/28887857/development-of-a-patient-specific-atrial-phantom-model-for-planning-and-training-of-inter-atrial-interventions
#9
Pedro Morais, João Manuel R S Tavares, Sandro Queirós, Fernando Veloso, Jan D'hooge, João L Vilaça
BACKGROUND: Several authors have presented cardiac phantoms to mimic the particularities of the heart, making it suitable for medical training and surgical planning. Although the initial models were mainly focused on the ventricles, personalized phantoms of the atria were recently presented. However, such models are typically rigid, the atrial wall is not realistic and they are not compatible with ultrasound, being sub-optimal for planning/training of several interventions. METHODS: In this work, we propose a strategy to construct a patient-specific atrial model...
September 8, 2017: Medical Physics
https://www.readbyqxmd.com/read/28884872/the-tip-of-the-muscle-is-a-dominant-location-of-ventricular-ectopy-originating-from-papillary-muscles-in-the-left-ventricle
#10
Petr Peichl, Jakub Baran, Dan Wichterle, Robert Čihák, Tomáš Skála, Bashar Aldhoon, Matevž Jan, Bor Antolič, Josef Kautzner
INTRODUCTION: Frequent ventricular premature complexes (VPCs) may cause symptoms and/or lead to deterioration of LV systolic function. Although frequent VPCs may be abolished by catheter ablation, it may be challenging in case of their origin from the LV papillary muscles (PMs). Our collaborative study aimed to analyze in detail the site of origin and the outcome of ablation. METHODS: Consecutive 34 patients (males: 68%; aged 62±12 years; LV ejection fraction: 50±9%) undergoing catheter ablation of VPCs originating from PMs were included...
September 8, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28876423/thrombosed-aneurysm-of-saphenous-vein-coronary-artery-bypass-grafting
#11
Rodolfo Mendes Queiroz, Rogério Nastri, Marcus Antônio Ferez, Mauro José Brandão da Costa, Claudio Benedini Laguna, Marcus Vinicius Nascimento Valentin
We describe the case of a male patient, aged 76 years, referred for cardiac investigation due to retrosternal chest pain and dyspnea. He had a history of acute myocardial infarction and angioplasties in the last 30 years, including a saphenous vein coronary artery bypass grafting (SVCABG). Echocardiogram showed hypoechoic oval formation near the right ventricle, suggesting a pericardial cyst. Computed angiotomography revealed a predominantly fusiform and thrombosed aneurysmal dilation of the SVCABG to the right coronary artery...
June 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28872345/intra-cerebral-cannabidiol-infusion-induced-neuroprotection-is-partly-associated-with-the-tnf-%C3%AE-tnfr1-nf-%C3%B0%C2%BAb-pathway-in-transient-focal-cerebral-ischaemia
#12
Sepideh Khaksar, Mohammad Reza Bigdeli
BACKGROUND: Stroke is a neurological disease, which, in addition to high mortality, imposes many financial and mental burdens on families and the society. The main objective of this study was to investigate the effect of cannabidiol (CBD) on one of the major inflammatory pathways in cerebral ischaemia. METHOD: Using stereotaxic surgery, the cannula was implanted into the right lateral ventricle of rats. CBD (50, 100, and 200 ng/rat; i.c.v.) was administrated for five consecutive days...
September 5, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28867639/animal-models-of-pulmonary-arterial-hypertension-a-systematic-review-and-meta-analysis-of-data-from-6-126-animals
#13
Katarzyna Sztuka, Magdalena Jasińska-Stroschein
Numerous animal models of pulmonary hypertension are currently available. A systematic review and meta-analysis was performed of a number of experimental studies of disease induction based on several animal models. A meta-analysis was performed of 291 publications discussing the efficacy of 611 interventions to introduce disease pulmonary hypertension in 6,126 animals. A meta-regression analysis was done to assess the effect of prolonged periods of disease induction on the outcomes. A random-effects meta-analysis was used to assess the impact of study characteristics and seek evidence of publication bias...
August 31, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28864224/catheter-directed-therapy-as-a-treatment-for-submassive-pulmonary-embolism-a-meta-analysis
#14
Xiao-Fang Li, Cheng-Quan Wan, Xue-Gai He, Jia-Yong Qiu, Dan-Yang Li, Yu-Xia Sun, Yi-Min Mao
AIMS: Catheter-directed therapy (CDT) is included in the guidelines for diagnosing and treating massive pulmonary embolism. However, few studies have evaluated the efficacy of CDT as a treatment for submassive pulmonary embolism (SPE). Therefore, we used evidence-based medicine to evaluate the effectiveness and safety of CDT in treating SPE. METHODS: Search terms describing CDT in SPE and patients with intermediate pulmonary embolism were entered into the PubMed, Embase and Cochrane Library databases to identify relevant articles without language restrictions published between January 1990 and December 2016...
August 29, 2017: Life Sciences
https://www.readbyqxmd.com/read/28863042/the-bioengineered-cardiac-left-ventricle
#15
Nikita M Patel, Ravi K Birla
Left ventricle and aortic valve underdevelopment are presentations in the congenital cardiac condition hypoplastic left heart syndrome (HLHS); current clinical treatments involve right ventricle refunctionalization. Cardiac organoid models provide simplified open chambers engineered into a flow loop, to ameliorate ventricle-type function. Complete bioengineered ventricle development presents a significant advancement in cardiac organoids. This study provides the foundation for bioengineered complete ventricle (BECV) fabrication...
August 31, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28857528/-benefits-of-magnetic-resonance-for-the-study-of-pectus-excavatum-in-children-initial-experience
#16
M Dore Reyes, C De La Torre, M Bret Zurita, P Triana Junco, J Jiménez Gómez, M Romo Muñoz, A Vilanova Sánchez, M Parrón Pajares, A Pérez Vigara, J L Encinas Hernández, L Martínez Martínez, F Hernández Oliveros, M López-Santamaría
INTRODUCTION/AIM OF THE STUDY: In patients with PE, cardiovascular alterations ensue as a result of the mediastinum compression caused by sternum impingement and is responsible of many of the symptoms. Anatomical and functional assessment is of the utmost importance for a comprehensive understanding of the disease and an adequate treatment plan. Our aim was to describe the use of magnetic resonance image (MRI) in the study of PE and whether it is comparable to imaging techniques. PATIENTS AND METHODS: A retrospective study of the first 10 patients in which an MRI was performed as part of PE assessment within august 2015-2016...
April 20, 2017: Cirugía Pediátrica: Organo Oficial de la Sociedad Española de Cirugía Pediátrica
https://www.readbyqxmd.com/read/28857356/different-predictivity-of-fluid-responsiveness-by-pulse-pressure-variation-in-children-after-surgical-repair-of-ventricular-septal-defect-or-tetralogy-of-fallot
#17
Ding Han, Shoudong Pan, Xiaonan Wang, Qingyan Jia, Yi Luo, Jia Li, Chuan Ou-Yang
BACKGROUND: Pulse pressure variation derived from the varied pulse contour method is based on heart-lung interaction during mechanical ventilation. It has been shown that pulse pressure variation is predictive of fluid responsiveness in children undergoing surgical repair of ventricular septal defect. Right ventricle compliance and pulmonary vascular capacitance in children with tetralogy of Fallot are underdeveloped as compared to those in ventricular septal defect. We hypothesized that the difference in the right ventricle-pulmonary circulation in the two groups of children would affect the heart-lung interaction and therefore pulse pressure variation predictivity of fluid responsiveness following cardiac surgery...
August 31, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28856524/4d-modelling-for-rapid-assessment-of-biventricular-function-in-congenital-heart-disease
#18
K Gilbert, B Pontre, C J Occleshaw, B R Cowan, A Suinesiaputra, A A Young
Although more patients with congenital heart disease (CHD) are now living longer due to better surgical interventions, they require regular imaging to monitor cardiac performance. There is a need for robust clinical tools which can accurately assess cardiac function of both the left and right ventricles in these patients. We have developed methods to rapidly quantify 4D (3D + time) biventricular function from standard cardiac MRI examinations. A finite element model was interactively customized to patient images using guide-point modelling...
August 30, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28840590/right-ventricular-morphology-and-function-is-not-related-with-micrornas-and-fibrosis-markers-in-dilated-cardiomyopathy
#19
Paweł Rubiś, Justyna Totoń-Żurańska, Sylwia Wiśniowska-Śmiałek, Maria Kołton-Wróż, Paweł Wołkow, Ewa Wypasek, Lucyna Rudnicka-Sosin, Agnieszka Pawlak, Kozanecki Kozanecki, Lidia Tomkiewicz-Pająk, Piotr Podolec
BACKGROUND: The relationship between right ventricle (RV), extracellular matrix (ECM) fibrosis and fibrosis-linked, circulating microRNAs in dilated cardiomyopathy (DCM) is unknown. AIMS: To uncover the associations between serum markers of ECM metabolism and circulating microRNAs with RV morphological and functional parameters. METHODS: The study population consisted of 70 consecutive DCM patients (ejection fraction 24.4 ± 7.4%). Based on detailed echocardiographic assessment - 15 patients had normal RV, whereas 55 patients had RV dilatation (RVD) and/or systolic dysfunction (RVSD)...
August 25, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28840383/comprehensive-echocardiographic-assessment-of-biventricular-function-in-the-rabbit-animal-model-in-cardiovascular-research-feasibility-and-normal-values
#20
Sara Roldan Ramos, Guido Pieles, Wei Hui, Ryo Ishii, Cameron Slorach, Mark K Friedberg
Quantification of cardiac structure and function is central in cardiovascular research. Rabbits are valuable research models of cardiovascular human disease; however, there is little normal data available. The aim of this study was to investigate feasibility and provide normal values for comprehensive echocardiographic assessment of biventricular function in rabbits. New Zealand white rabbits underwent trans-thoracic echocardiography using a general electric (GE) Vivid 7/E9 system with a 10 MHz transducer, under light sedation, to evaluate biventricular function and dimensions...
August 24, 2017: International Journal of Cardiovascular Imaging
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