Document Detail

A navigation platform for guidance of beating heart transapical mitral valve repair.
MedLine Citation:
PMID:  23047858     Owner:  NLM     Status:  Publisher    
Traditional surgical approaches for repairing diseased mitral valves have relied on placing the patient on cardiopulmonary bypass (on pump), stopping the heart and accessing the arrested heart directly. However, because this approach has the potential for adverse neurological, vascular and immunological sequalae, less invasive beating heart alternatives are desirable. Emerging beating heart techniques have been developed to offer high-risk patients mitral valve repair using ultrasound guidance alone without stopping the heart. This paper describes the first porcine trials of the NeoChord DS1000 (Minnetonka, MN), employed to attach neochordae to a mitral valve leaflet using the traditional ultrasound guided protocol augmented by dynamic virtual geometric models. The distance errors of the tracked tool tip from the intended midline trajectory (5.2±2.4mm vs. 16.8±10.9mm, p=0.003), navigation times (16.7±8.0s vs. 92.0±84.5s, p=0.004) and total path lengths (225.2±120.3mm vs. 1128.9±931.1mm, p=0.003) were significantly shorter in the augmented ultrasound compared to navigation with ultrasound alone,1 indicating a substantial improvement in the safety and simplicity of the procedure.
J T Moore; M W A Chu; B Kiaii; D Bainbridge; G Guiraudon; C Wedlake; M Currie; M Rajchl; R V Patel; T M Peters
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-03
Journal Detail:
Title:  IEEE transactions on bio-medical engineering     Volume:  -     ISSN:  1558-2531     ISO Abbreviation:  IEEE Trans Biomed Eng     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0012737     Medline TA:  IEEE Trans Biomed Eng     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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