| A review of transit-time flow measurement for assessing graft patency. | |
| | |
MedLine Citation:
|
PMID: 11276480 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Anastomotic quality is a critical issue in minimally invasive coronary artery bypass surgery, particularly "off-pump". It is important to detect a "poor" anastomosis during the procedure so future re-operation can be avoided. Methods such as intraoperative angiography, thermal angiography, probing of the anastomosis, and graft flow measurement have been used intraoperatively to help identify anastomotic errors. With the evolution of stabilizers, graft patency rates for off-pump cases have improved, but many believe they are still not as high as those of the conventional procedure. For off-pump surgery to be accepted and practiced universally, patency rates must be equivalent to those of "on-pump" cases. Transit-time flow measurement has become an increasingly popular non-invasive method for assessing anastomotic quality. However, it is difficult to establish whether an anastomosis is patent based on mean graft flow alone. Spectral analysis of graft flow waveforms reveal characteristic patterns that identify intermediate ranges of stenosis between fully patent and totally occluded. Together, these two components of graft flow have been used in the construction of a neural network to help identify "faulty" anastomoses. Transit-time flow measurement is a non-invasive tool that can be beneficial in identifying fully patent or nearly occluded grafts, and may also help in distinguishing intermediate stenoses. |
| | |
Authors:
|
D J VanHimbergen; S C Koenig; S F Jaber; P B Cerrito; P A Spence |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: The heart surgery forum Volume: 2 ISSN: 1098-3511 ISO Abbreviation: Heart Surg Forum Publication Date: 1999 |
Date Detail:
|
Created Date: 2001-03-29 Completed Date: 2001-05-24 Revised Date: 2003-11-14 |
Medline Journal Info:
|
Nlm Unique ID: 100891112 Medline TA: Heart Surg Forum Country: United States |
Other Details:
|
Languages: eng Pagination: 226-9 Citation Subset: IM |
Affiliation:
|
Department of Surgery, Jewish Hospital Heart and Lung Institute, University of Louisville School of Medicine, Louisville, Kentucky 40202, USA. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Anastomosis, Surgical* Animals Dogs Hemorheology* Internal Mammary-Coronary Artery Anastomosis / methods* Regional Blood Flow Surgical Procedures, Minimally Invasive Vascular Patency* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Contrast-enhanced magnetic resonance angiography for control of minimally invasive coronary artery b...
Next Document: Noninvasive graft flow and patency assessment following minimally invasive direct coronary artery by...