| Blood flow study of arteriovenous grafts with homologous and autologous veins in canine femoral vessels. | |
| | |
MedLine Citation:
|
PMID: 16596524 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
PURPOSE: The objective of this study was to assess the blood flow in arteriovenous (AV) communications comparing autologous and homologous veins, in the femoral vessels of dogs. METHODS: Ten mongrel dogs were used for the blood flow analysis, and two AV grafts (AVG) were placed in each of them. The grafts were made with an autologous vein in one side, and a omologous vein, kept in a 0.25% glutaraldehyde solution, in the other side. The volumetric flow was measured before and after AVG placement. Fifteen minutes after surgery, the volumetric flow was measured in the cranial artery, in the caudal artery, in the graft and in the vein, and the same procedure was repeated 15 days after surgery. Measurements were done using an eletromagnetic flowmeter calibrated previously. For data analysis, the Wilcoxon test was used (to compare the difference in the results between the times and the techniques used) alfa </=0.05). RESULTS: An increase of about 5.3 times was observed in the femoral artery cranial portion flow of these accesses during the first operation and an increase of 6.8 times in the re-operation for both techniques. In the femoral artery caudal portion of the AVGs there was a blood flow inversion of about 1.6 times for both techniques during the first operation and about 4.1 and 3.7 times for the autologous and homologous veins, respectively. There was a significant increase in the autologous grafts. In the cranial portion of the femoral vein, there was an increase in the flow in relation to the femoral artery flow before graft placement. There was an increase of 5.3 and 7.4 times for the autologous and homologous grafts, respectively, in the first operation and from 8-9.6 times in the re-operation. There was also a significant increase in the autologous graft in relation to the two procedures. A significant difference among the grafts placed during the first surgery was observed, which was not observed after 15 days. In the graft blood flow analysis, a flow increase of 5.1 times for the autologous vein and 6.6 times for the homologous vein and from 7.5-8.2 times in the re-operation was found in relation to the femoral artery flow. There was a significant increase in autologous vein flow between the first operation and the re-operation. CONCLUSION: The mean blood flow of the homologous AVG was greater during the first operation and similar to the autologous grafts during the re-operation. Therefore, the homologous AVG could be considered a possible alternative to vascular access for hemodialysis. |
| | |
Authors:
|
S J Galego; F Miranda; J Pinto Ortiz; K De Lima Bessa; R Vilhena de Carvalho Fürst; E Yumi Fujii; O Ramacciotti |
Related Documents
:
|
9652474 - Evaluation of a novel hirudin-coated polyester graft to physiologic flow conditions: hi... 12085384 - Does vascular access monitoring work? 3311334 - Predicting failure in polytetrafluoroethylene vascular access grafts for hemodialysis: ... 3690304 - Local blood flow and vascular permeability of autonomic ganglion-transplants in the brain. 7749124 - Unrelated placental blood for bone marrow reconstitution: organization of the placental... 3031694 - Blood leukotriene levels during the acute asthma attack in children. |
Publication Detail:
|
Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: The journal of vascular access Volume: 7 ISSN: 1129-7298 ISO Abbreviation: J Vasc Access Publication Date: 2006 Jan-Mar |
Date Detail:
|
Created Date: 2006-04-05 Completed Date: 2006-08-29 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 100940729 Medline TA: J Vasc Access Country: Italy |
Other Details:
|
Languages: eng Pagination: 15-23 Citation Subset: IM |
Affiliation:
|
Federal University of Sao Paulo, EPM (Escola Paulista de Medicina), Sao Paulo, Brazil. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Animals Arteriovenous Shunt, Surgical* Blood Flow Velocity Dogs Femoral Artery / physiopathology, surgery* Femoral Vein / physiopathology, surgery*, transplantation Male Reoperation Transplantation, Autologous Transplantation, Homologous |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: How to avoid and manage a pneumothorax.
Next Document: Infection assessment of totally implanted long-term venous access devices.