Journal articles on the topic 'Heart valves'

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1

Cheema, Faisal, Mona Ascha, Mohammad Pervez, Ayesha Mannan, Alex Kossar, and Gianluca Polvani. "Patents and Heart Valve Surgery – III: Percutaneous Heart Valves." Recent Patents on Cardiovascular Drug Discovery 09, no. 999 (January 23, 2014): 1. http://dx.doi.org/10.2174/1574890109666140123121301.

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2

Wolkers, W. "Freeze-dried decellularized heart valves for heart valve replacement." Cryobiology 73, no. 3 (December 2016): 403. http://dx.doi.org/10.1016/j.cryobiol.2016.09.020.

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3

von Oppell, Ulrich O., and Peter Zilla. "Introduction: Contemporary Heart Valves Prosthetic Heart Valves: Why Biological?" Journal of Long-Term Effects of Medical Implants 11, no. 3-4 (2001): 9. http://dx.doi.org/10.1615/jlongtermeffmedimplants.v11.i34.20.

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4

Dalen, James E. "Valvular heart disease, infected valves and prosthetic heart valves." American Journal of Cardiology 65, no. 6 (February 1990): C29—C31. http://dx.doi.org/10.1016/0002-9149(90)90112-e.

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5

Ramaswamy, Sharan. "Preface: Heart Valves." Journal of Long-Term Effects of Medical Implants 25, no. 1-2 (2015): 1. http://dx.doi.org/10.1615/jlongtermeffmedimplants.2015011914.

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6

Ho, SiewYen. "The heart valves." Cardiology Plus 6, no. 1 (2021): 73. http://dx.doi.org/10.4103/2470-7511.312599.

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7

Frankel, William C., and Tom C. Nguyen. "Artificial Heart Valves." JAMA 325, no. 24 (June 22, 2021): 2512. http://dx.doi.org/10.1001/jama.2020.19936.

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8

Elliott, A. T., and W. H. Bain. "Stolen Heart Valves?" Scottish Medical Journal 32, no. 5 (October 1987): 138–39. http://dx.doi.org/10.1177/003693308703200506.

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A patient having had both aortic and mitral valves replaced complained of triggering shop security alarms, attributing the problem to the prosthetic valves. It was demonstrated that the valves were not the cause of the problem and the source identified.
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9

Starr, A., and G. L. Grunkemeier. "Prosthetic heart valves." Current Opinion in Cardiology 2, no. 5 (September 1987): 822–28. http://dx.doi.org/10.1097/00001573-198709000-00016.

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10

Jamieson, W. R. Eric. "Prosthetic heart valves." Current Opinion in Cardiology 4, no. 2 (April 1989): 264–68. http://dx.doi.org/10.1097/00001573-198904000-00014.

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11

Grunkemeier, G. L., and S. H. Rahimtoola. "Artificial Heart Valves." Annual Review of Medicine 41, no. 1 (February 1990): 251–63. http://dx.doi.org/10.1146/annurev.me.41.020190.001343.

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12

Charitakis, Konstantinos, and Craig T. Basson. "Degenerating Heart Valves." Circulation 115, no. 1 (January 2, 2007): 2–4. http://dx.doi.org/10.1161/circulationaha.106.663237.

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13

Vlahakes, Gus J. "Mechanical Heart Valves." Circulation 116, no. 16 (October 16, 2007): 1759–60. http://dx.doi.org/10.1161/circulationaha.107.729582.

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14

Pibarot, Philippe, and Jean G. Dumesnil. "Prosthetic Heart Valves." Circulation 119, no. 7 (February 24, 2009): 1034–48. http://dx.doi.org/10.1161/circulationaha.108.778886.

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15

Pontefract, David E., Srikanth S. Iyengar, and Clifford W. Barlow. "Prosthetic heart valves." Surgery (Oxford) 22, no. 6 (June 2004): 131–35. http://dx.doi.org/10.1383/surg.22.6.131.38105.

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16

Chambers, J. "Prosthetic heart valves." International Journal of Clinical Practice 68, no. 10 (January 15, 2014): 1227–30. http://dx.doi.org/10.1111/ijcp.12309.

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17

Vongpatanasin, Wanpen, L. David Hillis, and Richard A. Lange. "Prosthetic Heart Valves." New England Journal of Medicine 335, no. 6 (August 8, 1996): 407–16. http://dx.doi.org/10.1056/nejm199608083350607.

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18

Abu-Omar, Yasir, and Chandana P. Ratnatunga. "Prosthetic heart valves." Surgery (Oxford) 25, no. 5 (May 2007): 224–27. http://dx.doi.org/10.1016/j.mpsur.2007.04.014.

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19

Abu-Omar, Yasir, and Chandana P. Ratnatunga. "Prosthetic heart valves." Surgery (Oxford) 26, no. 12 (December 2008): 496–500. http://dx.doi.org/10.1016/j.mpsur.2008.09.011.

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20

Biancucci, Brian. "Tubular heart valves." Journal of Thoracic and Cardiovascular Surgery 131, no. 6 (June 2006): 1419. http://dx.doi.org/10.1016/j.jtcvs.2005.08.038.

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21

Cox, James L., and R. C. Quijano. "Tubular heart valves." Journal of Thoracic and Cardiovascular Surgery 133, no. 3 (March 2007): 845–46. http://dx.doi.org/10.1016/j.jtcvs.2006.08.103.

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22

Otero-Coto, Eduardo. "Supernumerary heart valves." Journal of Thoracic and Cardiovascular Surgery 109, no. 5 (May 1995): 1023. http://dx.doi.org/10.1016/s0022-5223(95)70339-x.

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23

Zhang, Feng, Xianghuai Liu, Yingjun Mao, Nan Huang, Yu Chen, Zhihong Zheng, Zuyao Zhou, Anqing Chen, and Zhenbin Jiang. "Artificial heart valves:." Surface and Coatings Technology 103-104 (May 1998): 146–50. http://dx.doi.org/10.1016/s0257-8972(98)00434-4.

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24

Esposito, Giovanni, and Anna Franzone. "Transcatheter Heart Valves." JACC: Cardiovascular Interventions 13, no. 9 (May 2020): 1083–85. http://dx.doi.org/10.1016/j.jcin.2020.01.236.

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25

Hsi, D. H., and G. F. Ryan. "Prosthetic heart valves." Cleveland Clinic Journal of Medicine 69, no. 6 (June 1, 2002): 448. http://dx.doi.org/10.3949/ccjm.69.6.448.

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26

Hedger, P. "Faulty heart valves." BMJ 301, no. 6749 (September 1, 1990): 443. http://dx.doi.org/10.1136/bmj.301.6749.443-a.

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27

Longnecker, C. Ryan, and Michael J. Lim. "Prosthetic Heart Valves." Cardiology Clinics 29, no. 2 (May 2011): 229–36. http://dx.doi.org/10.1016/j.ccl.2011.01.007.

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28

Hedger, Philip. "Shiley heart valves." Lancet 336, no. 8719 (October 1990): 884. http://dx.doi.org/10.1016/0140-6736(90)92398-2.

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29

Otto, C. M. "Calcification of bicuspid aortic valves." Heart 88, no. 4 (October 1, 2002): 321–22. http://dx.doi.org/10.1136/heart.88.4.321.

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30

Cheema, Faisal, Nasir Hussain, Alexander Kossar, and Gianluca Polvani. "Patents and Heart Valve Surgery - I: Mechanical Valves." Recent Patents on Cardiovascular Drug Discovery 8, no. 1 (June 1, 2013): 17–34. http://dx.doi.org/10.2174/15748901112079990003.

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31

Cheema, Faisal, Alexander Kossar, Atiq Rehman, Fahad Younas, and Gianluca Polvani. "Patents and Heart Valve Surgery - II: Tissue Valves." Recent Patents on Cardiovascular Drug Discovery 8, no. 2 (August 1, 2013): 127–42. http://dx.doi.org/10.2174/15748901113089990020.

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32

Supadevi. S, K. Vijaykumar, Supasakthi. S, and Manimozhian. N. "Comparative Morphological and Morphometrical Analysis of Atrio-Ventricular Valves of Human and Porcine." International Journal of Anatomy and Research 11, no. 1 (February 26, 2023): 8559–63. http://dx.doi.org/10.16965/ijar.2022.287.

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There is increased incidence of valvular heart diseases in recent years due to life style modifications. The mortality rates in valvular diseases are kept in pace using various modalities of treatments. One such lifesaving treatment is valve replacement surgeries. These are done by using mechanical valve prosthesis or tissue grafts. The tissue valves prosthesis, harvested from porcine heart are called as xenograft and are increasingly used in valve repair and replacement surgeries. In the present scenario, there is a smaller number of systematically analysed literatures available on the comparative anatomy of human and porcine heart valves. Hence this study was carried out to acquire knowledge and to put forth some points to future research works on heart valves. In this study, 20 formalin fixed porcine and human hearts were procured from slaughter house and cadavers respectively. The morphology and morphometry of tricuspid valve and mitral valve was observed and analysed using spss software 20 version. All the dependent variables were compared using student t test and independent sample test. The results were tabulated and compared. It was observed that the tricuspid and the mitral valve of the porcine resembles the corresponding human heart valves in morphology and morphometry and their values were coinciding to their maximum. The porcine valve resembles human heart valves in morphology and it can be used in designing valve substitutes in replacement surgeries. Porcine valve can also be used as bio-prosthesis by matching the morphometry and by reducing the geometrical difference to their minimum by using any interventional radiology. KEY WORDS: Tissue Graft, Porcine, Tricuspid Valve, Mitral Valve, Morphology And Morphometry.
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33

Mohammadi, Hadi, and Guy Fradet. "Prosthetic Aortic Heart Valves." Cardiovascular System 5, no. 1 (2017): 2. http://dx.doi.org/10.7243/2052-4358-5-2.

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34

Bijl, Micon, and R. B. A. van den Brink. "Four Artificial Heart Valves." New England Journal of Medicine 353, no. 7 (August 18, 2005): 712. http://dx.doi.org/10.1056/nejmicm040922.

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35

Piazza, Nicolo, and Jean Gregoire. "Starr–Edwards Heart Valves." New England Journal of Medicine 358, no. 21 (May 22, 2008): e24. http://dx.doi.org/10.1056/nejmicm071210.

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36

Wheatley, D. J. "Mechanical prosthetic heart valves." Current Opinion in Cardiology 1, no. 5 (September 1986): 738–44. http://dx.doi.org/10.1097/00001573-198609000-00028.

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37

Kütting, Maximilian, Jan Roggenkamp, Ute Urban, Kai Gromann, Thomas Schmitz-Rode, and Ulrich Steinseifer. "Anchoring Percutaneous Heart Valves." Journal of Medical Imaging and Health Informatics 1, no. 3 (September 1, 2011): 262–66. http://dx.doi.org/10.1166/jmihi.2011.1038.

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38

Butany, Jagdish, Cristina Fayet, Manmeet S. Ahluwalia, Patrick Blit, Christina Ahn, Craig Munroe, Noobar Israel, Roberto J. Cusimano, and Richard L. Leask. "Biological replacement heart valves." Cardiovascular Pathology 12, no. 3 (May 2003): 119–39. http://dx.doi.org/10.1016/s1054-8807(03)00002-4.

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39

Sellers, Stephanie L., Christopher T. Turner, Janarthanan Sathananthan, Timothy R. G. Cartlidge, Frances Sin, Rihab Bouchareb, John Mooney, et al. "Transcatheter Aortic Heart Valves." JACC: Cardiovascular Imaging 12, no. 1 (January 2019): 135–45. http://dx.doi.org/10.1016/j.jcmg.2018.06.028.

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40

VeDepo, Mitchell C., Michael S. Detamore, Richard A. Hopkins, and Gabriel L. Converse. "Recellularization of decellularized heart valves: Progress toward the tissue-engineered heart valve." Journal of Tissue Engineering 8 (January 1, 2017): 204173141772632. http://dx.doi.org/10.1177/2041731417726327.

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The tissue-engineered heart valve portends a new era in the field of valve replacement. Decellularized heart valves are of great interest as a scaffold for the tissue-engineered heart valve due to their naturally bioactive composition, clinical relevance as a stand-alone implant, and partial recellularization in vivo. However, a significant challenge remains in realizing the tissue-engineered heart valve: assuring consistent recellularization of the entire valve leaflets by phenotypically appropriate cells. Many creative strategies have pursued complete biological valve recellularization; however, identifying the optimal recellularization method, including in situ or in vitro recellularization and chemical and/or mechanical conditioning, has proven difficult. Furthermore, while many studies have focused on individual parameters for increasing valve interstitial recellularization, a general understanding of the interacting dynamics is likely necessary to achieve success. Therefore, the purpose of this review is to explore and compare the various processing strategies used for the decellularization and subsequent recellularization of tissue-engineered heart valves.
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41

Kombalov, V. S., and V. F. Tatarinov. "Computation of Wear in Artificial Heart Valves." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 206, no. 3 (September 1992): 175–79. http://dx.doi.org/10.1243/pime_proc_1992_206_285_02.

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In order to assist with the prognosis of wear processes in low profile disc heart values, an approximate haemodynamic theory has been used for the determination of opening and closing dynamics of these valves, together with the most developed theory to date of frictional fatigue. The heart valve element wear was defined by solving the contact problem, which takes account of changes to the contact surface form as a consequence of wear. Calculated values are compared with in vivo wear data for artificial heart valves. The proposed model for estimating wear in artificial heart valves allows an optimization to be made of the wear resistance in available designs and to predict the wear resistance of artificial heart valves at the design stage.
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42

Qu, Tianyi. "Analysis of the Principle and State-of-art Artificial Heart Valve Facilities." Highlights in Science, Engineering and Technology 72 (December 15, 2023): 536–42. http://dx.doi.org/10.54097/g9ehrh44.

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In recent years, the mechanical artificial hearts are widely used in surgery ought to the medical demands. Although the use of mechanical artificial hearts is widespread worldwide and has been clinically proven for many years, current technology is still not sufficient to permanently preserve the heart. With current technology, reliable recovery after transplantation cannot be achieved and patients must continue to struggle to maintain heart function. Valves are therefore the main cause of artificial heart failure, and the choice of valve type is time-consuming. On this basis, this study will discuss the principle as well as the state-of-art facilities of heart valve. According to the analysis, valves, especially mitral and aortic valves (bioprosthetic and purely mechanical), can be further developed and their advantages and disadvantages are obvious. In addition, the limitations as well as the prospects for the devices are discussed accordingly. Overall, these results shed light on guiding further exploration of artificial heart valve development.
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43

Wood, David Alexander, Ronen Gurvitch, Anson Cheung, Jian Ye, Jonathon Leipsic, Eric Horlick, Josep Rodés-Cabau, et al. "TRANSCATHETER VALVE IN VALVE IMPLANTATION FOR FAILED BIOPROSTHETIC HEART VALVES." Journal of the American College of Cardiology 55, no. 10 (March 2010): A147.E1385. http://dx.doi.org/10.1016/s0735-1097(10)61386-1.

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44

Webb, John G., David A. Wood, Jian Ye, Ronen Gurvitch, Jean-Bernard Masson, Josep Rodés-Cabau, Mark Osten, et al. "Transcatheter Valve-in-Valve Implantation for Failed Bioprosthetic Heart Valves." Circulation 121, no. 16 (April 27, 2010): 1848–57. http://dx.doi.org/10.1161/circulationaha.109.924613.

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45

Fukui, Miho, Atsushi Okada, Marcus R. Burns, Hirotomo Sato, Kiahltone R. Thao, Cheng Wang, Hideki Koike, et al. "Deformation of transcatheter heart valves with mitral valve-in-valve." EuroIntervention 19, no. 11 (December 2023): e937-e947. http://dx.doi.org/10.4244/eij-d-23-00614.

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46

Fitzgerald, Carmel A. "Current Perspectives on Prosthetic Heart Valves and Valve Repair." AACN Advanced Critical Care 4, no. 2 (May 1, 1993): 228–43. http://dx.doi.org/10.4037/15597768-1993-2003.

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The quest for the ideal cardiac valve substitute represents a highly categorized goal for the cardiac surgical community. Ongoing research has resulted in the development and creation of multiple newer heart valves and techniques for valve repair. Each of the many valves commercially available possesses a wide array of features. With the expansion of research investigations, improvement in long-term management can be translated and incorporated directly into patient care. As valvular replacement and repair/reconstruction surgery become more commonplace, it is paramount for nurses to be knowledgeable regarding the critical components of care
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47

FITZGERALD, CARMEL A. "Current Perspectives on Prosthetic Heart Valves and Valve Repair." AACN Clinical Issues: Advanced Practice in Acute and Critical Care 4, no. 2 (May 1993): 228–43. http://dx.doi.org/10.1097/00044067-199305000-00003.

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48

TS, Purushotham, and Somashekhara G. "Evaluation of Prosthetic Heart Valves by Postoperative Echocardiography." Journal of Cardiovascular Medicine and Surgery 6, no. 1 (2020): 43–48. http://dx.doi.org/10.21088/jcms.2454.7123.6120.8.

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49

Hulsbergen, M. H., S. Topaz, A. Kumar, N. D. Bishop, A. Shelton, S. Granger, B. Y. Chiang, et al. "Elastomeric Valves, a New Design." International Journal of Artificial Organs 18, no. 4 (April 1995): 203–9. http://dx.doi.org/10.1177/039139889501800405.

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The convex bileaflet valve replaces the flat biflap inflow valve designed by Long Sheng Yu and the tricusp semilunair outflow valve. One reason is easier manufacturing. Convex bileaflet valves are developed for the 11, 20, 40, 70 and 140cc ventricles. Testing included curves (Cardiac Output versus Venous Pressure, Cardiac Output versus Heart rate), flow visualization studies, paint and bloodbag studies. The curves and flow visualization were done by connecting ventricles to one of our standard mock circulations. Paint and bloodbag studies were done by connecting the hearts to a bloodbag, but the bag was filled with water for the paint studies. The curves show high cardiac output, even with pumping at high heart rates (150 BPM+). The flow visualization shows a good stream through the sinus Valsalvae. No stagnating flow is visible. The bloodbag studies which provoke thrombosis show it on the edges of the heart valves, and little in the groove between the valve and the sinus Valsalvae. Heparninzation prevents the thrombosis. Results of our tests were good. The convex bileaflet valve seems to have good future.
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50

Pierlot, Caitlin M., Andrew D. Moeller, J. Michael Lee, and Sarah M. Wells. "Pregnancy-induced remodeling of heart valves." American Journal of Physiology-Heart and Circulatory Physiology 309, no. 9 (November 2015): H1565—H1578. http://dx.doi.org/10.1152/ajpheart.00816.2014.

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Recent studies have demonstrated remodeling of aortic and mitral valves leaflets under the volume loading and cardiac expansion of pregnancy. Those valves' leaflets enlarge with altered collagen fiber architecture, content, and cross-linking and biphasic changes (decreases, then increases) in extensibility during gestation. This study extends our analyses to right-sided valves, with additional compositional measurements for all valves. Valve leaflets were harvested from nonpregnant heifers and pregnant cows. Leaflet structure was characterized by leaflet dimensions, and ECM composition was determined using standard biochemical assays. Histological studies assessed changes in cellular and ECM components. Leaflet mechanical properties were assessed using equibiaxial mechanical testing. Collagen thermal stability and cross-linking were assessed using denaturation and hydrothermal isometric tension tests. Pulmonary and tricuspid leaflet areas increased during pregnancy by 35 and 55%, respectively. Leaflet thickness increased by 20% only in the pulmonary valve and largely in the fibrosa (30% thickening). Collagen crimp length was reduced in both the tricuspid (61%) and pulmonary (42%) valves, with loss of crimped area in the pulmonary valve. Thermomechanics showed decreased collagen thermal stability with surprisingly maintained cross-link maturity. The pulmonary leaflet exhibited the biphasic change in extensibility seen in left side valves, whereas the tricuspid leaflet mechanics remained largely unchanged throughout pregnancy. The tricuspid valve exhibits a remodeling response during pregnancy that is significantly diminished from the other three valves. All valves of the heart remodel in pregnancy in a manner distinct from cardiac pathology, with much similarity valve to valve, but with interesting valve-specific responses in the aortic and tricuspid valves.
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