In vitro comparison of different mechanical prostheses suitable for replacement of the systemic atrioventricular valve in children Tomaso Bottio, MD,

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Presentation transcript:

In vitro comparison of different mechanical prostheses suitable for replacement of the systemic atrioventricular valve in children Tomaso Bottio, MD, PhD, Carlo Dal Lin, MD, Alban Lika, MD, Giulio Rizzoli, MD, Vincenzo Tarzia, MD, Edward Buratto, MD, Gino Gerosa, MD The Journal of Thoracic and Cardiovascular Surgery Volume 143, Issue 3, Pages 558-568 (March 2012) DOI: 10.1016/j.jtcvs.2011.05.033 Copyright © 2012 The American Association for Thoracic Surgery Terms and Conditions

Figure 1 The SPD. (Reprinted with permission from the SPD Instructions Manual, page 5.9) The Journal of Thoracic and Cardiovascular Surgery 2012 143, 558-568DOI: (10.1016/j.jtcvs.2011.05.033) Copyright © 2012 The American Association for Thoracic Surgery Terms and Conditions

Figure 2 Mitral timing points. (Reprinted with permission from the SPD Instructions Manual, page 35.9) The Journal of Thoracic and Cardiovascular Surgery 2012 143, 558-568DOI: (10.1016/j.jtcvs.2011.05.033) Copyright © 2012 The American Association for Thoracic Surgery Terms and Conditions

Figure 3 The valves inserted into the SPD holder (21 mm), which is composed of 2 O-rings. Each prosthesis was secured between these rings fitting perfectly, thus ensuring the lack of any perivalvular leakage, as shown: On-X (On-X Life Technologies, Inc, Austin, Tex); SJM Regent (St Jude Medical Inc, St Paul, Minn); and Sorin Overline (Sorin Biomedica, Saluggia, Italy). The Medtronic Advantage (Medtronic Inc, Minneapolis, Minn) is shown in the SPD during the tests. The Journal of Thoracic and Cardiovascular Surgery 2012 143, 558-568DOI: (10.1016/j.jtcvs.2011.05.033) Copyright © 2012 The American Association for Thoracic Surgery Terms and Conditions

Figure 4 Mean pressure difference, EOA, and VCV of all valves tested. The Journal of Thoracic and Cardiovascular Surgery 2012 143, 558-568DOI: (10.1016/j.jtcvs.2011.05.033) Copyright © 2012 The American Association for Thoracic Surgery Terms and Conditions

Figure 5 VLV, TRV, and TEL of all valves tested. The Journal of Thoracic and Cardiovascular Surgery 2012 143, 558-568DOI: (10.1016/j.jtcvs.2011.05.033) Copyright © 2012 The American Association for Thoracic Surgery Terms and Conditions