| Qualitative haemodynamic validation of a percutaneous temporary aortic valve: a proof of concept study. | |
| | |
MedLine Citation:
|
PMID: 21231828 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
|
The concept of temporary aortic valves has been suggested in the clinical settings of acute aortic regurgitation and transcatheter aortic valve replacement procedure (TAVR). In TAVR, suggestions have been made to pre-treat or remove the diseased aortic valve prior to implantation of the replacement valve. A successful temporary aortic valve must demonstrate the ability to prevent life-threatening haemodynamics of massive aortic regurgitation. A novel temporary aortic valve (TAV) design, comprised of inflatable balloon elements as a check-valve, can readily be deployed and retrieved via a catheter-system. A simple flow model is set up to test the TAV's performance in severe aortic regurgitation. With induced aortic regurgitation, placement of the TAV is found to increase the distal aortic diastolic pressure, to reduce the widened pulse pressure, to protect proximal aorta-left ventricle from diastolic pressure elevation and to reduce the aortic regurgitant volume. In conclusion, continued development of the TAV system can lead to a successful temporary aortic valve to be used in various appropriate clinical settings. |
| | |
Authors:
|
P C Ho |
Related Documents
:
|
22271558 - Percutaneous stent implantation into coronary arteries in infants. 3261408 - Maternal arterial desaturation with 15-methyl prostaglandin f2 alpha for uterine atony. 21628318 - Delayed sternal closure after vacuum-assisted closure therapy for tracheo-innominate ar... 21177298 - Rapidly growing aortic arch aneurysm in behcet's disease. 16835798 - Concordant ventriculoarterial connections with parallel arterial trunks in the setting ... 16928548 - Traumatic innominate artery disruption and aortic valve rupture. |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Journal of medical engineering & technology Volume: 35 ISSN: 1464-522X ISO Abbreviation: J Med Eng Technol Publication Date: 2011 Feb |
Date Detail:
|
Created Date: 2011-01-14 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 7702125 Medline TA: J Med Eng Technol Country: England |
Other Details:
|
Languages: eng Pagination: 115-20 Citation Subset: IM |
Affiliation:
|
HOCOR Cardiovascular Technologies, LLC, 88 Piikoi Street, Suite 3903, Honolulu, HI 96814, USA. paul.c.ho@hocorcardiovascular.com |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Single prediction equation for bioelectrical impedance analysis in adults aged 22-59 years.
Next Document: Irradiation of normal mouse tissue increases the invasiveness of mammary cancer cells.