A total of 404 cases of aortic valve reconstruction with glutaraldehyde-treated autologous pericardium Shigeyuki Ozaki, MD, PhD, Isamu Kawase, MD, Hiromasa.

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Presentation transcript:

A total of 404 cases of aortic valve reconstruction with glutaraldehyde-treated autologous pericardium Shigeyuki Ozaki, MD, PhD, Isamu Kawase, MD, Hiromasa Yamashita, MD, Shin Uchida, MD, Yukinari Nozawa, MD, Mikio Takatoh, MD, So Hagiwara, MD The Journal of Thoracic and Cardiovascular Surgery Volume 147, Issue 1, Pages 301-306 (January 2014) DOI: 10.1016/j.jtcvs.2012.11.012 Copyright © 2014 The American Association for Thoracic Surgery Terms and Conditions

Figure 1 Management of pericardium. Generally speaking, pericardium becomes thicker as it approaches the diaphragm. On the other hand, it becomes thinner as it reaches the aorta. A larger cusp tends to have the more shear stress, and its opening/closing movement can be smooth regardless of its stiffness. Therefore, we always make the larger cusp from the diaphragm side and the smaller cusps from the aortic side. The Journal of Thoracic and Cardiovascular Surgery 2014 147, 301-306DOI: (10.1016/j.jtcvs.2012.11.012) Copyright © 2014 The American Association for Thoracic Surgery Terms and Conditions

Figure 2 Suturing technique of the pericardial cusp. The suture is begun at the center of the annulus. This suture is tied and the ends are continued as a running suture bidirectionally. The ratio of distance between each bite on the pericardium and the annulus should be 3:1 at the bottom of the annulus, and it should be changed to 1:1 when the suture comes up to the coaptation zone. The Journal of Thoracic and Cardiovascular Surgery 2014 147, 301-306DOI: (10.1016/j.jtcvs.2012.11.012) Copyright © 2014 The American Association for Thoracic Surgery Terms and Conditions

Figure 3 A, Concept of commissure height. An original template was designed to make pericardial leaflets have deep coaptation up to the same horizontal plane as the top of the commissures. B, Commissure creation. With the commissural wing sewed facing the aortic wall, the commissural part of each cusp can have more strength to tolerate the maximal stress, and the commissural part of each cusp bulges naturally toward the aortic lumen, which gives better coaptation for the cusps. C, upper left, The first annular suture is pulled out around the center of wing along the annular suture marking line to just inside (below) the native commissure. Second commissuroplasty suture (4-0 prolene RB-1) is first passed through both sides of cusps just above the last bite of annular stitch along the annular suture marking line. Then, the second commissuroplasty suture is passed through more laterally and upward near the edge of wing, and through the aortic wall above the commissure to fit this wing against the aortic wall. Upper right, Annular stitches travel more narrow and lower (inside the commissure), and commissuroplasty stitches travel wider and higher (outside the commissure). This is same on the felt pledget. Lower, The wings should fit nicely to the aortic wall above the annular line. D, Real completion of aortic valve reconstruction including commissuroplasty. The Journal of Thoracic and Cardiovascular Surgery 2014 147, 301-306DOI: (10.1016/j.jtcvs.2012.11.012) Copyright © 2014 The American Association for Thoracic Surgery Terms and Conditions

Figure 4 A, Survival curve with 95% confidence limits. B, Freedom from reoperation curve with 95% confidence limits. The Journal of Thoracic and Cardiovascular Surgery 2014 147, 301-306DOI: (10.1016/j.jtcvs.2012.11.012) Copyright © 2014 The American Association for Thoracic Surgery Terms and Conditions

Figure 5 Left, Follow-up echocardiographic evaluation of peak pressure gradient after aortic valve reconstruction. Right, Follow-up echocardiographic evaluation of aortic regurgitation after aortic valve reconstruction. The Journal of Thoracic and Cardiovascular Surgery 2014 147, 301-306DOI: (10.1016/j.jtcvs.2012.11.012) Copyright © 2014 The American Association for Thoracic Surgery Terms and Conditions