HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Personal Folders Download to citation manager Permission Requests Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Thubrikar, M. Articles by Nolan, S. P. Search for Related Content PubMed PubMed Citation Articles by Thubrikar, M. Articles by Nolan, S. P.

The Journal of Thoracic and Cardiovascular Surgery, Vol 77, 863-870, Copyright © 1979 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association

ARTICLES

The mechanism of opening of the aortic valve

M Thubrikar, LP Bosher and SP Nolan

The mechanism of opening of the aortic valve was investigated in dogs by attaching radiopaque markers to the commissures and the leaflets. Analysis of abnormal cardiac cycles demonstrated that, when the ventricular pressure first equalled the aortic pressure, the intercomissural distances increased 9 percent, and the valve opened with a stellate orifice without forward flow and without a rise in aortic pressure. Further opening of the aortic valve was dependent on forward flow over a narrow range. A new mechanism of aortic valve opening is proposed. This mechanism results in minimal flexion stresses on the leaflets and is important for the longevity of the normal aortic valve. It can occur only if the leaflets arise from an expansile aortic root.

This article has been cited by other articles:

				F. Settepani, W. Y. Szeto, D. Pacini, R. De Paulis, L. Chiariello, R. Di Bartolomeo, R. Gallotti, and J. E. Bavaria Reimplantation Valve-Sparing Aortic Root Replacement in Marfan Syndrome Using the Valsalva Conduit: An Intercontinental Multicenter Study Ann. Thorac. Surg., February 1, 2007; 83(2): S769 - S773. [Abstract] [Full Text] [PDF]

				R. De Paulis, R. Scaffa, S. Forlani, and L. Chiariello The Valsalva graft in aortic valve repair and replacement MMCTS, November 29, 2005; 2005(1129): 992. [Abstract] [Full Text] [PDF]

				L Kadem, J G Dumesnil, R Rieu, L-G Durand, D Garcia, and P Pibarot Impact of systemic hypertension on the assessment of aortic stenosis Heart, March 1, 2005; 91(3): 354 - 361. [Abstract] [Full Text] [PDF]

				R. De Paulis, F. Tomai, F. Bertoldo, A. S. Ghini, R. Scaffa, P. Nardi, and L. Chiariello Coronary flow characteristics after a Bentall procedure with or without sinuses of Valsalva Eur. J. Cardiothorac. Surg., July 1, 2004; 26(1): 66 - 72. [Abstract] [Full Text] [PDF]

				R. A. Hopkins Aortic valve leaflet sparing and salvage surgery: evolution of techniques for aortic root reconstruction Eur. J. Cardiothorac. Surg., December 1, 2003; 24(6): 886 - 897. [Abstract] [Full Text] [PDF]

				M. Handke, G. Heinrichs, F. Beyersdorf, M. Olschewski, C. Bode, and A. Geibel In vivo analysis of aortic valve dynamics by transesophageal 3-dimensional echocardiography with high temporal resolution J. Thorac. Cardiovasc. Surg., June 1, 2003; 125(6): 1412 - 1419. [Abstract] [Full Text] [PDF]

				E. Lansac, H.S. Lim, Y. Shomura, K.H. Lim, N.T. Rice, W. Goetz, C. Acar, and C.M.G. Duran A four-dimensional study of the aortic root dynamics Eur. J. Cardiothorac. Surg., October 1, 2002; 22(4): 497 - 503. [Abstract] [Full Text] [PDF]

				E. Lansac, K. H. Lim, Y. Shomura, W. A. Goetz, H. S. Lim, N. T. Rice, H. Saber, and C. M. G. Duran Dynamic balance of the aortomitral junction J. Thorac. Cardiovasc. Surg., May 1, 2002; 123(5): 911 - 918. [Abstract] [Full Text] [PDF]

				F. Robicsek, M. J. Thubrikar, and A. A. Fokin Cause of degenerative disease of the trileaflet aortic valve: review of subject and presentation of a new theory Ann. Thorac. Surg., April 1, 2002; 73(4): 1346 - 1354. [Abstract] [Full Text] [PDF]

				E. Lansac, H.S. Lim, Y. Shomura, K.H. Lim, W. Goetz, N.T. Rice, C. Acar, and C.M.G. Duran Aortic and pulmonary root: are their dynamics similar? Eur. J. Cardiothorac. Surg., February 1, 2002; 21(2): 268 - 275. [Abstract] [Full Text] [PDF]

				R. De Paulis, G. M. De Matteis, P. Nardi, R. Scaffa, M. M. Buratta, and L. Chiariello Opening and closing characteristics of the aortic valve after valve-sparing procedures using a new aortic root conduit Ann. Thorac. Surg., August 1, 2001; 72(2): 487 - 494. [Abstract] [Full Text] [PDF]

				Z. L. Nagy, J. Fisher, P. G. Walker, and K. G. Watterson The in vitro hydrodynamic characteristics of the porcine pulmonary valve and root with regard to the Ross procedure J. Thorac. Cardiovasc. Surg., August 1, 2000; 120(2): 284 - 289. [Abstract] [Full Text] [PDF]

				P. Dagum, G. R. Green, F. J. Nistal, G. T. Daughters, T. A. Timek, L. E. Foppiano, A. F. Bolger, N. B. Ingels Jr, and D. C. Miller Deformational Dynamics of the Aortic Root : Modes and Physiologic Determinants Circulation, November 9, 1999; 100(90002): II-54 - 62. [Abstract] [Full Text] [PDF]

				M. Arsenault, N. Masani, G. Magni, J. Yao, L. Deras, and N. Pandian Variation of anatomic valve area during ejection in patients with valvular aortic stenosis evaluated by two-dimensional echocardiographic planimetry: comparison with traditional Doppler data J. Am. Coll. Cardiol., December 1, 1998; 32(7): 1931 - 1937. [Abstract] [Full Text] [PDF]

				M. J. Eriksson, G.o. Kallner, S. Rosfors, T. Ivert, and L.-A. Brodin Hemodynamic performance of cryopreserved aortic homograft valves during midterm follow-up J. Am. Coll. Cardiol., October 1, 1998; 32(4): 1002 - 1008. [Abstract] [Full Text] [PDF]

				M. Higashidate, K. Tamiya, T. Beppu, and Y. Imai REGULATION OF THE AORTIC VALVE OPENINGIn vivo dynamic measurement of aortic valve orifice area J. Thorac. Cardiovasc. Surg., August 1, 1995; 110(2): 496 - 503. [Abstract] [Full Text]