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Right ventricle assessment

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https://www.readbyqxmd.com/read/28095748/myocardial-inactivation-of-thyroid-hormones-in-patients-with-aortic-stenosis
#1
Bruno Paolino, Pablo Maria Pomerantzeff, Luiz Alberto O Dallan, Fabio Antonio Gaiotto, Nailliw Zanini Preite, Ana Claudia Latronico, Jose Carlos Nicolau, Antonio Carlos Bianco, Roberto Giraldez
OBJECTIVE: To study myocardial thyroid hormone metabolism in patients with aortic valve stenosis (AS) undergoing aortic valve replacement and in patients with coronary artery disease (CAD) undergoing coronary artery bypass grafting surgery. CONTEXT: The human heart expresses the type 2 deiodinase (D2) that activates T4 to T3. At the same time, the inactivating type 3 deiodinase (D3) has been found in a rat model of right ventricular hypertrophy. It is not known whether the human myocardium metabolizes thyroid hormone...
January 17, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28093270/cardiac-magnetic-resonance-tissue-tracking-in-right-ventricle-feasibility-and-normal-values
#2
Vien T Truong, Komal S Safdar, Dinesh K Kalra, Xuexin Gao, Stephanie Ambach, Michael D Taylor, Ryan Moore, Robin J Taylor, Joshua Germann, Olga Toro-Salazar, John L Jefferies, Cheryl Bartone, Subha V Raman, Tam Ngo, Wojciech Mazur
PURPOSE: To investigate right ventricular (RV) strain in patients without identified cardiac pathology using cardiac magnetic resonance tissue tracking (CMR TT). METHODS: A total of 50 consecutive patients with no identified cardiac pathology were analyzed. RV longitudinal and circumferential strain was assessed by CMR TT. The age range was 4-81years with a median of 32years (interquartile range, 15 to 56years). RESULTS: Analysis time per patient was <5min...
January 13, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28090137/echocardiographic-assessment-of-right-ventricle-adaptation-to-endurance-training-in-young-rowers-speckle-tracking-echocardiography
#3
M Konopka, W Krol, K Burkhard-Jagodzinska, A Jakubiak, A Klusiewicz, J Chwalbinska, A Pokrywka, D Sitkowski, M Dluzniewski, W Braksator
The aim of this study was to determine the relationship between the degree of cardiorespiratory fitness and the function of the right ventricle (RV). 117 rowers, age 17.5±1.5 years. All subjects underwent cardiopulmonary exercise. Standard echocardiography and 2D speckle tracking echocardiography with evaluation of longitudinal strain in each segment of the RV (basal - RVLS-B; mid - RVLS-M, apical - RVLS-A) and global RV free-wall strain (RVLS-G) were performed. RVLS-B values were lower compared to the RVLS-M (-25...
December 2016: Biology of Sport
https://www.readbyqxmd.com/read/28079844/serum-interleukin-6-in-systemic-sclerosis-and-its-correlation-with-disease-parameters-and-cardiopulmonary-involvement
#4
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/28073593/integrative-cardiopulmonary-ultrasound-for-interstitial-lung-disease-assessment-correlation-between-lung-ultrasound-performance-and-cardiac-involvement
#5
Wei-Wei Zhu, Yi-Dan Li, Hong Li, Xiu-Zhang Lu, Ling-Yun Kong, Xiao-Guang Ye, Qi-Zhe Cai, Lan-Lan Sun, Wei Jiang, Li Wang
The aims of this study were to apply integrative cardiopulmonary ultrasound (thoracic ultrasound) to the evaluation of patients with interstitial lung disease (ILD) and to determine the relationship between lung ultrasound signs and echocardiographic parameters such as systolic pulmonary artery pressure (SPAP) and various right ventricular parameters. ILD patients and healthy controls underwent lung ultrasound (LUS) and echocardiographic tests. In addition to traditional echocardiographic parameters, right ventricular free wall longitudinal strain (RVLS_FW) was measured using 2-D speckle-tracking echocardiography...
January 7, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28070911/effects-of-exercise-training-on-brain-derived-neurotrophic-factor-in-skeletal-muscle-and-heart-of-rats-post-myocardial-infarction
#6
Heow Won Lee, Monir Ahmad, Hong-Wei Wang, Frans H H Leenen
Exercise training post myocardial infarction (MI) attenuates progressive left ventricle (LV) remodeling and dysfunction, but the peripheral stimuli induced by exercise which trigger these beneficial effects are still unclear. We investigated as possible mediators fibronectin type III domain-containing protein 5 (FNDC5) and brain-derived neurotrophic factor (BDNF) in the skeletal muscle and heart. Male Wistar rats underwent either sham surgery or ligation of left descending coronary artery, and surviving MI rats were allocated to either sedentary (Sed-MI) or exercise group (ExT-MI)...
January 9, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28063755/-congenital-heart-disease-recent-technical-advances-in-three-dimensional-echocardiography
#7
Clement Karsenty, Khaled Hadeed, Philippe Acar
The recent technical advances allow the use in practice of three-dimensional echocardiography in children especially through the new high frequency matrix probe. It is difficult or even impossible to hold breathing during children' acquisition so to avoid motion full volume artifact, one beat and live 3D modes are suitable. 3D echocardiography is more accurate than 2D to assess the size, location, and relationship with surrounding structures of atrial and ventricular septal defects and thus helps in the therapeutic decision...
January 4, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28059905/functional-tricuspid-regurgitation-model-in-a-beating-heart-platform
#8
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/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/28040278/biventricular-endomyocardial-biopsy-in-patients-with-suspected-myocarditis-feasibility-complication-rate-and-additional-diagnostic-value
#10
Thomas Stiermaier, Felix Föhrenbach, Karin Klingel, Reinhard Kandolf, Enno Boudriot, Marcus Sandri, Axel Linke, Karl-Philipp Rommel, Steffen Desch, Gerhard Schuler, Holger Thiele, Philipp Lurz
BACKGROUND: Previous retrospective analyses have suggested that biventricular (BV) endomyocardial biopsy (EMB) is superior compared to selective left ventricular (LV) or right ventricular (RV) EMB. This study prospectively assessed the feasibility, safety and diagnostic performance of implementing a routine BV-EMB approach in patients with suspected myocarditis. METHODS: Consecutive patients with clinically suspected myocarditis underwent EMB (n=136). Myocarditis was defined as ≥14 infiltrating leukocytes/mm(2) in addition to enhanced human leukocyte antigen class II expression in professional antigen-presenting immune cells...
December 21, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28028974/myocardial-ischaemia-coronary-atherosclerosis-and-pulmonary-pressure-elevation-in-antiphospholipid-syndrome-patients
#11
Agnieszka Padjas, Wojciech Płazak, Magdalena Celińska-Lowenhoff, Adam Mazurek, Carlo Perricone, Piotr Podolec, Jacek Musiał
BACKGROUND: Thrombotic events in antiphospholipid syndrome (APS) involve venous and arterial circulation with the possible involvement of coronary or pulmonary microcirculation. OBJECTIVES: To evaluate the influence of antiphospholipid antibodies (aPL) and on myocardial ischaemia assessed by single-photon emission computerized tomography (SPECT), coronary atherosclerosis assessed by multidetector computerized tomography (MDCT) and pulmonary pressure assessed by transthoracic echocardiography (TTE) in patients with primary antiphospholipid syndrome (PAPS)...
November 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28025026/hyperdynamic-right-heart-function-in-graves-hyperthyroidism-measured-by-echocardiography-normalises-on-restoration-of-euthyroidism
#12
Stephanie L Teasdale, Warrick J Inder, Michael Stowasser, Tony Stanton
BACKGROUND: Graves' hyperthyroidism commonly causes tachycardia and may result in pulmonary hypertension and high output cardiac failure. There is limited information regarding the effect of treatment on cardiac function measured using modern echocardiographic techniques. METHODS: Eight individuals with Graves' hyperthyroidism, aged 22-64 years, underwent comprehensive transthoracic echocardiography at three time points: before treatment, two weeks after commencement of carbimazole, and at six months or more when euthyroid...
November 19, 2016: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28024557/acute-right-ventricle-failure-in-the-intensive-care-unit-assessment-and-management
#13
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/28017353/significance-of-residual-mitral-regurgitation-after-continuous-flow-left%C3%A2-ventricular-assist-device-implantation
#14
Hayah Kassis, Krishna Cherukuri, Richa Agarwal, Manreet Kanwar, Subbarao Elapavaluru, George G Sokos, Robert J Moraca, Stephen H Bailey, Srinivas Murali, Raymond L Benza, Amresh Raina
OBJECTIVES: This study hypothesized that the presence of residual mitral regurgitation (MR) post-continuous flow (CF) left ventricular assist device (LVAD) implantation based on quantitative assessment would be negatively associated with right ventricular (RV) size and function and clinical outcomes. BACKGROUND: MR is associated with elevated left atrial pressure, secondary pulmonary hypertension and RV dysfunction. Implantation of a LVAD leads to mechanical unloading of the left ventricle and generally improves MR...
November 30, 2016: JACC. Heart Failure
https://www.readbyqxmd.com/read/28011843/histological-evidence-of-inflammatory-reaction-associated-with-fibrosis-in-the-atrial-and-ventricular-walls-in-a-case-control-study-of-patients-with-history-of-atrial-fibrillation
#15
Lubov B Mitrofanova, Victoria Orshanskaya, Siew Yen Ho, Pyotr G Platonov
AIMS: Chronic inflammation in the atrial myocardium was shown to play an important role in the development of atrial fibrosis in patients with atrial fibrillation (AF). However, it is not clear to what extent atrial inflammatory reaction associated with AF extends on the ventricular myocardium. Our aim was to assess the extent of fibrosis and lymphomononuclear infiltration in human ventricular myocardium and explore its association with AF. METHODS AND RESULTS: Medical records from consecutive autopsies were checked for presence of AF...
December 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28011346/bucindolol-improves-right-ventricle-function-in-rats-with-pulmonary-arterial-hypertension-through-the-reversal-of-autonomic-imbalance
#16
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/27993200/a-novel-mouse-model-of-high-flow-induced-pulmonary-hypertension-surgically-induced-by-right-pulmonary-artery-ligation
#17
Anchen Zhang, Hongfei Wang, Shengwei Wang, Xiaofan Huang, Ping Ye, Xinling Du, Jiahong Xia
BACKGROUND: This study sought to establish a new model of high-flow pulmonary hypertension (PH) in mice. This model may be useful for studies seeking to reduce the pulmonary vascular resistance and delay the development of PH caused by congenital heart disease. MATERIALS AND METHODS: The right pulmonary artery was ligated via a right posterolateral thoracotomy. Pulmonary hemodynamics was evaluated by right heart catheterization immediately after ligation and at 2, 4, 8, and 12 wk postoperatively...
February 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/27989690/comparing-the-efficacy-of-tadalafil-versus-placebo-on-pulmonary-artery-systolic-pressure-and-right-ventricular-function-in-patients-with-beta-thalassaemia-intermedia
#18
Rozita Jalalian, Ali Akbar Moghadamnia, Ahmad Tamaddoni, Soraya Khafri, Mohammadreza Iranian
BACKGROUND: Conventional oral therapies in the management of pulmonary hypertension in people without haemoglobinopathies are of limited value in thalassaemia patients because of toxicity and poor effectiveness. This study was conducted to assess the effect of tadalafil on pulmonary artery pressure and right ventricular systolic function in patients with beta-thalassaemia intermedia. METHODS: Forty-four patients with beta-thalassaemia intermedia with pulmonary hypertension based on transthoracic echocardiography (TTE) were entered in the study...
December 2, 2016: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/27979575/the-right-atrium-and-tricuspid-annulus-are-cardinal-structures-in-tricuspid-regurgitation-with-or-without-pulmonary-hypertension
#19
Naohiko Nemoto, Jonathan G Schwartz, John R Lesser, Wesley D Pedersen, Paul Sorajja, Ross Garberich, Erin M Spinner, Robert S Schwartz
BACKGROUND: Right heart structural abnormalities occur in both tricuspid regurgitation (TR) and pulmonary hypertension (PH). They may occur independently or together, but their joint effects on cardiac structure are incompletely described. This study examined the interactions of TR severity and PH on right heart structural changes. METHODS: The study evaluated 455 patients undergoing both echocardiography and CT angiography (CTA). Cases were divided into 3 groups by TR severity: trace (n=217), mild (n=174), and significant (moderate or severe, n=64)...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27976640/cardiac-functions-assessment-in-children-with-celiac-disease-and-its-correlation-with-the-degree-of-mucosal-injury-doppler-tissue-imaging-study
#20
Abeer Fathy, Hany M Abo-Haded, Najat Al-Ahmadi, Marwa M El-Sonbaty
BACKGROUND/AIMS: Celiac disease (CD)-associated cardiologic disorders is a growing concern. However, data regarding cardiac affection in children with CD are few. This study aimed at assessing the subclinical impact of CD on the global myocardial performance in Saudi children with CD using Doppler tissue imaging (DTI). PATIENTS AND METHODS: Conventional two-dimensional echocardiography was performed among 20 Saudi children with CDas well as 20 age and sex-matched healthy controls...
November 2016: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
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