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

This Article Full Text (PDF) References 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 Sigwart, U. Articles by Borst, H. G. Search for Related Content PubMed PubMed Citation Articles by Sigwart, U. Articles by Borst, H. G.

Ann Thorac Surg 1976;22:213-220
© 1976 The Society of Thoracic Surgeons

---

Articles

In Vivo Evaluation of the Lillehei-Kaster Heart Valve Prosthesis

Gollwitzer-Meier Institute, Bad Oeynhausen, and the Department of Thoracic Surgery, Hannover Medical School, Hannover, West Germany

Accepted for publication February 19, 1976.

^* Address reprint requests to Dr. Sigwart, Gollwitzer-Meier Institute, D-4970 Bad Oeynhausen, West Germany.

In vivo evaluation of the Lillehei-Kaster heart valve prosthesis was performed in 28 patients; 22 had undergone aortic valve replacement and 6 had had mitral valve replacement.

Mean pressure gradients ranged from 6 to 53 mm Hg in aortic prostheses; valve area varied from 0.83 to 2.9 cm². The maximum opening angle of 80 degrees was never reached in this group of patients; opening angles ranged from 57 to 74 degrees without evidence of disc malfunction. There was no correlation between the ratio of effective to geometric valve area and the degree of opening of the disc occluder.

Similar results were found in the mitral valve group. Gradients ranged from 6.0 to 12.5 mm Hg and valve area from 1.6 to 2.2 cm². The maximum opening angle was 59 to 63 degrees.

It is concluded that incomplete opening of the disc occluder in pivoting-disc valves is not necessarily a sign of disc malfunction. Lillehei-Kaster valves smaller than 18 mm in internal diameter should be avoided in adults, and outflow aortoplasty for implantation of a larger prosthesis should be used in patients who have a narrow aortic root.

This article has been cited by other articles:

				A. Aris, C. Crexells, J. M. Auge, A. Oriol, and J. M. Caralps Hemodynamic Evaluation of the Integral Monostrut Bjork-Shiley Prosthesis in the Aortic Position Ann. Thorac. Surg., September 1, 1985; 40(3): 234 - 240. [Abstract] [PDF]

				B. K. H. Semb and K. V. Hall The Hall-Kaster Cardiac Disc Valve Prosthesis: Experimental and Clinical Results Vascular and Endovascular Surgery, May 1, 1981; 15(3): 193 - 217. [PDF]

				H. H. J. Zwart, G. Hicks, B. Schuster, M. Nathan, F. Tabrah, F. Wenzke, T. Ahmed, and R. A. DeWall Clinical Experience with the Lillehei-Kaster Valve Prosthesis Ann. Thorac. Surg., August 1, 1979; 28(2): 158 - 165. [Abstract] [PDF]

				R. B. Pyle, J. E. Mayer Jr., W. G. Lindsay, C. R. Jorgensen, Y. Wang, and D. M. Nicoloff Hemodynamic Evaluation of Lillehei-Kaster and Starr-Edwards Prostheses Ann. Thorac. Surg., October 1, 1978; 26(4): 336 - 343. [Abstract] [PDF]

				A. P. Tandon, D. R. Smith, D. A. S. Mary, and M. I. Ionescu Sequential Hemodynamic Studies in Patients Having Aortic Valve Replacement with the Ionescu-Shiley Pericardial Xenograft Ann. Thorac. Surg., August 1, 1977; 24(2): 149 - 155. [Abstract] [PDF]