Results 21 to 30 of about 219,558 (187)

Persistent Vascular Collagen Accumulation Alters Hemodynamic Recovery from Chronic Hypoxia [PDF]

, 2012
Pulmonary arterial hypertension (PAH) is caused by narrowing and stiffening of the pulmonary arteries that increase pulmonary vascular impedance (PVZ). In particular, small arteries narrow and large arteries stiffen. Large pulmonary artery (PA) stiffness
Chesler, Naomi C., Hacker, Timothy A., Molthen, Robert C., Roldan-Alzate, Alejandro, Tabima, Diana M., Wang, Zhijie   +5 more
core   +2 more sources

Evaluation of the impact of chronic kidney disease on the survival of octogenarian patients submitted to percutaneous coronary intervention

Indian Heart Journal, 2018
Objective: To evaluate the impact of chronic kidney disease on the survival of patients – 80 years of age undergoing percutaneous coronary intervention (PCI) in the long term.
Julio Cesar Queiroz de Franca, Moacir Fernandes Godoy, Márcio Antonio Santos, Flavio Correa Pivatelli, Wilson Pedro Guimarães Neto, Marcio Rogerio De Souza Braite   +5 more
doaj   +1 more source

Impaired coronary blood flow at higher heart rates during atrial fibrillation: investigation via multiscale modelling [PDF]

, 2019
Background. Different mechanisms have been proposed to relate atrial fibrillation (AF) and coronary flow impairment, even in absence of relevant coronary artery disease (CAD). However, the underlying hemodynamics remains unclear.
Anselmino, Matteo, Gallo, Caterina, Ridolfi, Luca, Saglietto, Andrea, Scarsoglio, Stefania   +4 more
core   +2 more sources

The Impact of Left Ventricular Performance and Afterload on the Evaluation of Aortic Valve Stenosis: A 1D Mathematical Modeling Approach

Bioengineering, 2023
The transaortic valvular pressure gradient (TPG) plays a central role in decision-making for patients suffering from severe aortic stenosis. However, the flow-dependence nature of the TPG makes the diagnosis of aortic stenosis challenging since the ...
Cemre Çelikbudak Orhon, Nikolaos Stergiopulos, Stéphane Noble, Georgios Giannakopoulos, Hajo Müller, Dionysios Adamopoulos   +5 more
doaj   +1 more source

Cerebral hemodynamic characteristics of acute mountain sickness upon acute high-altitude exposure at 3,700 m in young Chinese men. [PDF]

, 2014
PURPOSE: We aimed at identifying the cerebral hemodynamic characteristics of acute mountain sickness (AMS). METHODS: Transcranial Doppler (TCD) sonography examinations were performed between 18 and 24 h after arrival at 3,700 m via plane from 500 m (n ...
Bian, Shi-Zhu, Chen, Jian-Fei, Huang, Lan, Jin, Jun, Li, Qian-Ning, Qin, Jun, Tang, Cai-Fa, Yu, Shi-Yong, Zhang, Ji-Hang   +8 more
core   +2 more sources

Percutaneous balloon valvuloplasty in a pregnant patient with pulmonary bioprosthetic valve stenosis

Revista Médica del Hospital General de México, 2022
The pulmonary valve’s anomalies can lead to the obstruction of the right ventricle’s outflow tract. This leads to the right ventricle’s pressure overload, dilation, hypertrophy and eventually his malfunction.
Jesús S. Borges-López, Axel Cuevas-Campillo, Víctor Ochoa-Pérez, Javier González-Maciel, José R. Castaño-Guerra, Eduardo Ayala-Hernández   +5 more
doaj   +1 more source

Machine learning-enabled estimation of cardiac output from peripheral waveforms is independent of blood pressure measurement location in an in silico population

Scientific Reports
Monitoring of cardiac output (CO) is a mainstay of hemodynamic management in the acutely or critically ill patient. Invasive determination of CO using thermodilution, albeit regarded as the gold standard, is cumbersome and bears risks inherent to ...
Lydia Aslanidou, Georgios Rovas, Ramin Mohammadi, Sokratis Anagnostopoulos, Cemre Çelikbudak Orhon, Nikolaos Stergiopulos   +5 more
doaj   +1 more source

Advances in the Diagnosis and Management of High-Risk Cardiovascular Conditions: Biomarkers, Intracoronary Imaging, Artificial Intelligence, and Novel Anticoagulants

Journal of Cardiovascular Development and Disease
Understanding thrombosis in acute coronary syndromes (ACSs) has evolved through advances in biomarkers, intracoronary imaging, and emerging analytical tools, improving diagnostic accuracy and risk stratification in high-risk patients.
Clarissa Campo Dall’Orto, Rubens Pierry Ferreira Lopes, Gilvan Vilella Pinto, Pedro Gabriel Senger Braga, Marcos Raphael da Silva   +4 more
doaj   +1 more source

Computational Simulations for Aortic Coarctation: Representative Results From a Sampling of Patients [PDF]

, 2011
Treatments for coarctation of the aorta (CoA) can alleviate blood pressure (BP) gradients(D), but long-term morbidity still exists that can be explained by altered indices of hemodynamics and biomechanics.
Chan, Frandics P, Ellwein, Laura M, Feinstein, Jeffrey A, Figueroa, Alberto, Kim, Hyun Jin, LaDisa, John F., Taylor, Charles A, Vignon-Clementel, Irene E, Xiao, Nan   +8 more
core   +4 more sources

CASP1 Gene Polymorphisms and BAT1-NFKBIL-LTA-CASP1 Gene–Gene Interactions Are Associated with Restenosis after Coronary Stenting

Biomolecules, 2022
In the present study, we evaluated the association of the BAT1, NFKBIL, LTA, and CASP1 single nucleotide polymorphisms and the gene–gene interactions with risk of developing restenosis after coronary stenting. The allele and genotype determination of the
Gilberto Vargas-Alarcón, Julian Ramírez-Bello, Marco Antonio Peña-Duque, Marco Antonio Martínez-Ríos, Hilda Delgadillo-Rodríguez, José Manuel Fragoso   +5 more
doaj   +1 more source