Keyword search (4,163 papers available)

"In vitro" Keyword-tagged Publications:

Title Authors PubMed ID
1 Elucidating the toxicity of methyl parathion, imazapic, isoxaflutole, and chlorantraniliprole on human hepatocarcinoma cells and bioinspired membranes Dos Santos DM; Rubira RJG; Salzedas GP; Kobal MB; Moreira LG; Toledo KA; Aoki PHB; DeWolf C; Camacho SA; 40020292
CONCORDIA
2 An Anatomically Shaped Mitral Valve for Hemodynamic Testing Darwish A; Papolla C; Rieu R; Kadem L; 38228812
ENCS
3 Impact of Mitral Regurgitation on the Flow in a Model of a Left Ventricle. Papolla C, Darwish A, Kadem L, Rieu R 33000444
ENCS
4 New recombinant fibrolytic enzymes for improved in vitro ruminal fiber degradability of barley straw. Ribeiro GO, Badhan A, Huang J, Beauchemin KA, Yang W, Wang Y, Tsang A, McAllister TA 30053012
CSFG

 

Title:An Anatomically Shaped Mitral Valve for Hemodynamic Testing
Authors:Darwish APapolla CRieu RKadem L
Link:https://pubmed.ncbi.nlm.nih.gov/38228812/
DOI:10.1007/s13239-024-00714-5
Publication:Cardiovascular engineering and technology
Keywords:In vitroLeft atriumLeft ventricleMitral regurgitationMitral valveMitral valve prolapsecirculatory loop
PMID:38228812 Category: Date Added:2024-01-17
Dept Affiliation: ENCS
1 Laboratory of Cardiovascular Fluid Dynamics, Concordia University, Montreal, QC, H3G 1M8, Canada. lcfd@encs.concordia.ca.
2 Mechanical Power Engineering Department, Assiut University, Assiut, 71515, Egypt. lcfd@encs.concordia.ca.
3 Laboratory of Cardiovascular Fluid Dynamics, Concordia University, Montreal, QC, H3G 1M8, Canada.
4 Aix-Marseille University, LBA UMR T24, Marseille, France.

Description:

In vitro modeling of the left heart relies on accurately replicating the physiological conditions of the native heart. The targeted physiological conditions include the complex fluid dynamics coming along with the opening and closing of the aortic and mitral valves. As the mitral valve possess a highly sophisticated apparatus, thence, accurately modeling it remained a missing piece in the perfect heart duplicator puzzle. In this study, we explore using a hydrogel-based mitral valve that offers a full representation of the mitral valve apparatus. The valve is tested using a custom-made mock circulatory loop to replicate the left heart. The flow analysis includes performing particle image velocimetry measurements in both left atrium and ventricle. The results showed the ability of the new mitral valve to replicate the real interventricular and atrial flow patterns during the whole cardiac cycle. Moreover, the investigated valve has a ventricular vortex formation time of 5.2, while the peak e- and a-wave ventricular velocities was 0.9 m/s and 0.4 m/s respectively.





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