Article
Medicine, General & Internal
Rossana Orabona, Edoardo Sciatti, Enrico Vizzardi, Ivano Bonadei, Marco Metra, Enrico Sartori, Tiziana Frusca, Antonio Pinna, Rino Bellocco, Federico Prefumo
Summary: The study investigated maternal right ventricular and left atrial function in normal twin pregnancies, finding that cardiac function in twins is similar to singletons and remains stable throughout gestation. Left atrial dimensions increased significantly during pregnancy in both twin and singleton pregnancies, with left atrial strains showing no significant variation.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Medicine, General & Internal
Rossana Orabona, Edoardo Sciatti, Enrico Vizzardi, Ivano Bonadei, Marco Metra, Enrico Sartori, Tiziana Frusca, Antonio Pinna, Rino Bellocco, Federico Prefumo
Summary: This study investigated the maternal left ventricular (LV) function in uncomplicated twin pregnancies longitudinally. The results showed that maternal LV geometry, dimensions, and function were significantly impaired during twin pregnancies, particularly in the second half of gestation. However, there were no significant differences compared to singleton pregnancies.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Cardiac & Cardiovascular Systems
Philippe Obert, Stephane Nottin, Clothilde Philouze, Falah Aboukhoudir
Summary: This study provides the first evidence of the potential of vitamin D supplementation as an efficient prophylactic strategy to alleviate the progression of myocardial dysfunction in asymptomatic patients with uncomplicated T2D.
NUTRITION METABOLISM AND CARDIOVASCULAR DISEASES
(2023)
Article
Medicine, General & Internal
Riccardo Bariani, Maria Bueno Marinas, Ilaria Rigato, Paola Veronese, Rudy Celeghin, Alberto Cipriani, Marco Cason, Valeria Pergola, Giulia Mattesi, Petra Deola, Alessandro Zorzi, Giuseppe Limongelli, Sabino Iliceto, Domenico Corrado, Cristina Basso, Kalliopi Pilichou, Barbara Bauce
Summary: This study analyzed a series of childbearing women affected by arrhythmogenic left ventricular cardiomyopathy (ALVC) and found that pregnancy had no significant influence on disease progression and degree of electrical instability in ALVC patients without previous episodes of heart failure.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Physics, Multidisciplinary
Jose Figueroa-O'Farrill, Can Gormez, Dieter Van den Bleeken
Summary: In this article, we study the motion of a free particle on homogeneous kinematical spacetimes of Galilean type. We analyze the well-known cases of Galilei and (A)dS-Galilei spacetimes, but focus on the previously unexplored torsional Galilean spacetimes. We demonstrate that, in properly chosen coordinates, the free particle motion is equivalent to the dynamics of a damped harmonic oscillator, with the damping induced by the torsion. We also uncover the subtle realization of the kinematical symmetry algebra in terms of conserved charges and present interesting surprises in terms of homothetic versions of Hamiltonian vector fields and a generalized Poisson bracket.
Article
Cardiac & Cardiovascular Systems
Melissa Lyle, William R. Miranda, Vaibhav R. Vaidya, Carl H. Rose, Rowlens M. Melduni, Heidi M. Connolly, Katie A. Young
Summary: Left ventricular noncompaction (LVNC) is a rare cardiomyopathy associated with arrhythmias, embolic events, and heart failure. This study investigates the pregnancy outcomes of women with LVNC and suggests that even successful pregnancies in these women may result in children with LVNC.
AMERICAN JOURNAL OF CARDIOLOGY
(2023)
Article
Obstetrics & Gynecology
Piotr Dobrowolski, Przemyslaw Kosinski, Aleksander Prejbisz, Anna Szczepkowska, Anna Klisiewicz, Magdalena Januszewicz, Miroslaw Wielgos, Andrzej Januszewicz, Piotr Hoffman
Summary: This study analyzed data from 60 healthy pregnant women and found that in uncomplicated pregnancy, left atrial volume index increased and correlated with parameters of Doppler ultrasound of fetal circulation and the uterine artery.
AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY
(2021)
Article
Cardiac & Cardiovascular Systems
Malamo E. Countouris, Flordeliza S. Villanueva, Kathryn L. Berlacher, Joao L. Cavalcante, W. Tony Parks, Janet M. Catov
Summary: Women with a history of hypertensive disorders of pregnancy (HDP) have significant differences in left ventricular structure and function a decade after delivery, especially when accompanied by current hypertension. Continued surveillance and targeted therapies may be necessary for cardiovascular disease prevention in these individuals.
JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY
(2021)
Article
Chemistry, Physical
Marcelo Lopes Pereira Junior, Taina de Sousa Oliveira, Fabio Ferreira Monteiro, Wiliam Ferreira da Cunha, Pedro Henrique de Oliveira Neto, Luiz Antonio Ribeiro Junior
Summary: Research finds that the torsional fracture patterns of carbon nanotube bundles are diameter-dependent and can be influenced by tube chirality. Larger tube diameters result in higher plasticity of the bundle sample under torsional loading. Armchair-based bundles have higher accumulated energies and higher critical angles for bundle fracture compared to bundles composed of zigzag or chiral nanotubes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Engineering, Biomedical
Martin Genet, Jerome Diaz, Dominique Chapelle, Philippe Moireau
Summary: Biomechanical modeling and simulation have great potential in medicine, but the computational cost of full-order finite element models for complex organs like the heart can be prohibitive. Therefore, reduced models are more practical, allowing for pre-calibration, fast predictions, and real-time applications. In this study, we develop a reduced ventricular model based on cylindrical geometry and kinematics, incorporating myofiber orientation and contraction patterns. Our model has a fully dynamical formulation, integrated into a lumped circulation model, and accounts for various physical parameters.
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
M. R. Grobbel, L. C. Lee, S. W. Watts, G. D. Fink, S. Roccabianca
Summary: This study investigated the contributions of collagen fiber network and myocytes to myocardial residual stress/strain in hypertensive rats fed with high-fat diet. The results showed that hypertension leads to reduced residual stress/strain in male and female rats, with collagen remaining the largest contributor, and sex-specific remodeling features were identified in both hypertensive and normotensive animals.
EXPERIMENTAL MECHANICS
(2021)
Article
Biology
Hossein Sharifi, Lik Chuan Lee, Kenneth S. Campbell, Jonathan F. Wenk
Summary: In this study, a new multiscale model of the cardiovascular system named MyoFE is presented. The model integrates a mechanistic model of contraction at the myosin level into a finite element-based model of the left ventricle pumping blood through the systemic circulation. The model is coupled with a closed-loop feedback control of arterial pressure inspired by a baroreflex algorithm, showing the ability to maintain arterial pressure in different conditions.
COMPUTERS IN BIOLOGY AND MEDICINE
(2024)
Article
Cardiac & Cardiovascular Systems
Cristiana Catena, Gabriele Brosolo, Andrea Da Porto, Debora Donnini, Luca Bulfone, Antonio Vacca, Giorgio Soardo, Leonardo A. Sechi
Summary: In hypertensive patients, NAFLD is associated with LV hypertrophy and diastolic dysfunction, and liver steatosis scores are positively correlated with LV mass index and diastolic function. Liver steatosis scores, age, and blood pressure independently predict LV hypertrophy and diastolic dysfunction.
FRONTIERS IN CARDIOVASCULAR MEDICINE
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Jing Liu, Jing Li, Huaxia Pu, Wenzhang He, Xiaoyue Zhou, Nanwei Tong, Liqing Peng
Summary: In this study, adults with obesity were found to have extensive LV geometric remodeling and marked changes in cardiac strains, which could be revealed by CMR. Factors such as visceral adipose tissue and insulin resistance were potentially superior predictors of subclinical dysfunction in obesity compared to BMI.
QUANTITATIVE IMAGING IN MEDICINE AND SURGERY
(2022)
Article
Sport Sciences
Alexandra M. Coates, Christian P. Cheung, Katharine D. Currie, Trevor J. King, Margo L. Mountjoy, Jamie F. Burr
Summary: The study compared the cardiac function of elite swimmers, water polo players, and artistic swimmers. Male swimmers showed volume-based functional adaptations distinct from the mixed volume-pressure adaptations of water polo players. Female swimmers and water polo players did not show sport-specific differences like males, but had greater volume-based adaptations compared to artistic swimmers.
MEDICINE & SCIENCE IN SPORTS & EXERCISE
(2022)
Article
Cardiac & Cardiovascular Systems
Saeed Tofighi, Hamidreza Poorhosseini, Yaser Jenab, Mohammad Alidoosti, Mohammad Sadeghian, Mehdi Mehrani, Zhale Tabrizi, Parisa Hashemi
Summary: This study aimed to predict adverse clinical outcomes in STEMI patients treated with primary PCI using machine learning models. The results showed that the DRF and GBM models had the best performance in predicting major adverse cardiovascular events.
CLINICAL CARDIOLOGY
(2024)