| Mitral valve implantation using off-pump closed beating intracardiac surgery: a feasibility study. | |
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MedLine Citation:
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PMID: 17670733 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We have developed the Universal Cardiac Introducer (UCI) with the aim of modernizing the off-pump, closed, beating, intracardiac approach. This paper reports our ongoing experience with positioning of a prosthetic MV, under image-guidance, substituting for direct vision. The UCI is comprised of two detachable parts: an attachment-cuff and an airlock-introductory chamber for bulky tools. A prosthetic MV was introduced into the left atrium in 12 pigs via the UCI (LA appendage). Transesophageal and 4D epicardial ultrasound were used for guidance. Limitations of ultrasound imaging prompted the development of a multimodality virtual reality (VR) system introduced in the last three animals. There were no complications associated with cardiac access, while achieving proper valve positioning. TEE contributed to navigating, while 4D epicardial ultrasound was adequate for positioning the prosthesis into the MV orifice. VR provided a 3D context for real-time US imaging with precise navigation and positioning using augmented reality representation of the valve. We demonstrated the feasibility of positioning MV prostheses via the UCI. These results suggest the tremendous potential of virtual reality in making access safe and effective for many intracardiac targets, with the ultimate goal of a safe, versatile, clinical application. |
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Authors:
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Gerard M Guiraudon; Douglas L Jones; Daniel Bainbridge; Terry M Peters |
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Publication Detail:
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Type: Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't Date: 2007-06-14 |
Journal Detail:
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Title: Interactive cardiovascular and thoracic surgery Volume: 6 ISSN: 1569-9285 ISO Abbreviation: Interact Cardiovasc Thorac Surg Publication Date: 2007 Oct |
Date Detail:
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Created Date: 2007-09-21 Completed Date: 2007-10-04 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101158399 Medline TA: Interact Cardiovasc Thorac Surg Country: England |
Other Details:
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Languages: eng Pagination: 603-7 Citation Subset: IM |
Affiliation:
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Canadian Surgical Technologies and Advanced Robotics, Lawson Health Research Institute, CSTAR Legacy Building, LHSC-UC, 339 Windermere Road, London, Ontario, N6A 5A5, Canada. gguiraud@uwo.ca |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Echocardiography, Four-Dimensional* Echocardiography, Transesophageal* Equipment Design Equipment Safety Feasibility Studies Heart Valve Prosthesis Implantation / adverse effects, instrumentation* Image Interpretation, Computer-Assisted* Mitral Valve / surgery*, ultrasonography Surgery, Computer-Assisted / instrumentation* Swine Ultrasonography, Interventional / methods* User-Computer Interface* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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