Hans Nygaard
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Explore the profile of Hans Nygaard including associated specialties, affiliations and a list of published articles.
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Articles
55
Citations
281
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Recent Articles
1.
Jensen M, Jensen H, Skov S, Levine R, Nygaard H, M Hasenkam J, et al.
J Heart Valve Dis
. 2018 Dec;
27(1):38-46.
PMID: 30560598
Background: Temporal three-dimensional (3D) analysis of the mitral valve biomechanics has prompted a re-evaluation of surgical approaches and repair device designs to accommodate the natural dynamics of the valve. Such...
2.
Bechsgaard T, Lindskow T, Lading T, Ropcke D, Nygaard H, Johansen P, et al.
Interact Cardiovasc Thorac Surg
. 2018 Jul;
28(1):112-119.
PMID: 29961835
Objectives: Understanding the biomechanical impact of aortic valve-sparing techniques is important in an era in which surgical techniques are developing and are increasingly being used based on biomechanical understanding that...
3.
Skov S, Ropcke D, Tjornild M, Ilkjaer C, Rasmussen J, Nygaard H, et al.
J Heart Valve Dis
. 2017 Nov;
26(3):295-303.
PMID: 29092114
Background And Aim Of The Study: The configuration of the native annulus changes from nearly flat in the diastolic phase to saddle-shaped in the systolic phase. The present study was...
4.
Bauer A, Hausmann H, Schaarschmidt J, Scharpenberg M, Troitzsch D, Johansen P, et al.
Perfusion
. 2017 Sep;
33(2):136-147.
PMID: 28937313
Objective: The postoperative systemic inflammatory response after cardiopulmonary bypass (CPB) is still an undesirable side-effect after cardiac surgery. It is most likely caused by blood contact with foreign surfaces and...
5.
The effect of different mitral annuloplasty rings on valve geometry and annular stress distribution†
Skov S, Ropcke D, Tjornild M, Ilkjaer C, Rasmussen J, Nygaard H, et al.
Interact Cardiovasc Thorac Surg
. 2017 Mar;
24(5):683-690.
PMID: 28329364
Objectives: To characterize the remodelling effects and deformational forces of normosized rigid, semirigid and flexible mitral annuloplasty rings after implantation in healthy pigs. Methods: Measurements were performed in vivo with...
6.
Johansen P, Travis B, Smerup M, Christensen T, Funder J, Nyboe C, et al.
Annu Int Conf IEEE Eng Med Biol Soc
. 2017 Mar;
2016:4305-4308.
PMID: 28269232
When implanting a mechanical aortic valve the annulus orientation is important with respect to turbulence. However, the effect on cavitation has not yet been investigated. The aim of this study...
7.
Skov S, Ropcke D, Tjornild M, Ilkjaer C, Rasmussen J, Nygaard H, et al.
Eur J Cardiothorac Surg
. 2017 Feb;
51(5):836-843.
PMID: 28175268
Objectives: Investigate myocardial stress adaptation and remodelling capacity of a rigid and semi-rigid mitral annuloplasty ring. Methods: The annuloplasty rings were characterized in vitro in a mechanical setup with tensile...
8.
Funder J, Christiansen R, Graesvig Sandahl O, Hjortdal V, Nygaard H, Hasenkam J
J Heart Valve Dis
. 2016 Dec;
24(6):722-728.
PMID: 27997778
Background: Regions of turbulence downstream of bioprosthetic heart valves may cause damage to blood components, vessel walls, and also to aortic valve leaflets. Stentless aortic heart valves are known to...
9.
New mitral annular force transducer optimized to distinguish annular segments and multi-plane forces
Skov S, Ropcke D, Ilkjaer C, Rasmussen J, Tjornild M, Jimenez J, et al.
J Biomech
. 2016 Feb;
49(5):742-748.
PMID: 26903412
Limited knowledge exists about the forces acting on mitral valve annuloplasty repair devices. The aim of this study was to develop a new mitral annular force transducer to measure the...
10.
Smerup M, Damkjaer M, Brondum E, Baandrup U, Kristiansen S, Nygaard H, et al.
J Exp Biol
. 2015 Dec;
219(Pt 3):457-63.
PMID: 26643090
Giraffes--the tallest extant animals on Earth--are renowned for their high central arterial blood pressure, which is necessary to secure brain perfusion. Arterial pressure may exceed 300 mmHg and has historically...