Mechanical Properties of Autologous Pericardium Change With Fixation Time: Implications for Valve Reconstruction

被引：16

作者：

Hofferberth, Sophie C. ^{[1
]}

Baird, Christopher W. ^{[1
]}

Hoganson, David M. ^{[1
]}

Quinonez, Luis G. ^{[1
]}

Emani, Sitaram M. ^{[1
]}

Del Nido, Pedro J. ^{[1
]}

Hammer, Peter E. ^{[1
]}

机构：

[1] Harvard Med Sch, Boston Childrens Hosp, Dept Cardiac Surg, Boston, MA 02115 USA

来源：

SEMINARS IN THORACIC AND CARDIOVASCULAR SURGERY | 2019年 / 31卷 / 04期

关键词：

Valve reconstruction; Bovine pericardium; Autologous pericardium; Biaxial mechanical testing;

D O I：

10.1053/j.semtcvs.2019.03.001

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Autologous pericardium, fixed in glutaraldehyde, is a common patch material used in heart valve reconstruction. Competence of a reconstructed valve depends on patch dimensions and also on how much the patch deforms when the closed valve is pressurized. In this study, we used biaxial testing to evaluate the deformability of fixed autologous pericardium, and several commercial alternatives, under typical cardiac loads. We found that deformability of fixed autologous pericardium varies predictably with fixation time. This information can be used by surgeons in designing patches for valve repair. © 2019 Elsevier Inc.

引用

页码：852 / 854

页数：3

共 4 条

[1] Mechanical testing of pericardium for manufacturing prosthetic heart valves [J].

Aguiari, Paola ;

Fiorese, Michele ;

Iop, Laura ;

Gerosa, Gino ;

Bagno, Andrea .

INTERACTIVE CARDIOVASCULAR AND THORACIC SURGERY, 2016, 22 (01) :72-84

[2] 2-DIMENSIONAL STRESS-STRAIN RELATIONSHIP FOR CANINE PERICARDIUM [J].

CHOI, HS ;

VITO, RP .

JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME, 1990, 112 (02) :153-159

[3] Guidelines for Sizing Pericardium for Aortic Valve Leaflet Grafts [J].

Hammer, Peter E. ;

del Nido, Pedro J. .

ANNALS OF THORACIC SURGERY, 2013, 96 (01) :E25-E27

[4] Aortic valve reconstruction using self-developed aortic valve plasty system in aortic valve disease [J].

Ozaki, Shigeyuki ;

Kawase, Isamu ;

Yamashita, Hiromasa ;

Uchida, Shin ;

Nozawa, Yukinari ;

Matsuyama, Takayoshi ;

Takatoh, Mikio ;

Hagiwara, So .

INTERACTIVE CARDIOVASCULAR AND THORACIC SURGERY, 2011, 12 (04) :550-553

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