Register to reply

Radial Artery harvesting for bypass surgery

by Charles123
Tags: artery, bypass, harvesting, radial, surgery
Share this thread:
Charles123
#1
Sep23-12, 12:27 AM
P: 140
Radial Artery harvesting is becoming and more and more used as an option for bypass surgery. I have read that there is an increase in the risk of pour tissue oxygenation, which of course makes sense. You can read more in - http://lib.tmd.ac.jp/jmd/5202/01_manabe.pdf, where it is also referred that there is an also logical increase in flow in the Ulnar Artery.
In terms of the hand I can see that one can compensate the other. But in the forearm, Isn`t the Radial Artery of extreme importance? The article does not mention vasculogenesis, neither I found anything related to it, but doesn’t it play a great role in the recovery here?

Thank you

Regards
Phys.Org News Partner Medical research news on Phys.org
Three-quarters of depressed cancer patients do not receive treatment for depression, new approach could transform care
Better classification to improve treatments for breast cancer
Oral contraceptive equal to antibiotics for acne care
SW VandeCarr
#2
Sep30-12, 06:08 PM
P: 2,500
Quote Quote by Charles123 View Post
Radial Artery harvesting is becoming and more and more used as an option for bypass surgery. I have read that there is an increase in the risk of pour tissue oxygenation, which of course makes sense. You can read more in - http://lib.tmd.ac.jp/jmd/5202/01_manabe.pdf, where it is also referred that there is an also logical increase in flow in the Ulnar Artery.
In terms of the hand I can see that one can compensate the other. But in the forearm, Isn`t the Radial Artery of extreme importance? The article does not mention vasculogenesis, neither I found anything related to it, but doesn’t it play a great role in the recovery here?

Thank you

Regards
The simple fact is that there are not too many places to safely obtain autografts for coronary revascularization. They tend to be needed where they are. The short internal thoracic (mammary) arteries are preferred for single grafts but many surgeries require the graft to be cut into a number of pieces for multiple locations. In general any arterial graft is superior to a venous one.

That leaves the radial artery where about 20 cm can be taken. The ulnar artery can ordinarily be relied on to supply the affected area. Oxygen demand is much less in the upper extremity as compared to the lower. It's not ideal, but neither is having to have bypass grafts in your heart. The radial artery requires very expert handling because it is easily damaged and tends to go into spasm. The following article summarizes some of the pros and cons in addition to the points made in the the link you posted.

http://circ.ahajournals.org/content/110/5/e40.full

I'm not sure what you mean by vasculogenesis. The heart itself is capable of developing collateral circulation to circumvent smaller blocked arteries, but it may or may not stay ahead of the atherosclerotic process. You probably haven't heard of it because it's not clear that we can do it better than the heart can.

www.molmed.org/content/1998/7_98/Rivard.pdf
mazinse
#3
Nov17-12, 03:46 PM
P: 190
Yeah Let me add that atherosclerosis and sternosis and even the overall long term compliance of the vessels are the main factors to be concerned for long term morbidity and mortality. Vasculogenesis is not reliable enough, especially trying to work with a damaged heart whose ejection fraction maybe not be high in the first place

Evo
#4
Nov17-12, 04:12 PM
Mentor
Evo's Avatar
P: 26,545
Radial Artery harvesting for bypass surgery

Quote Quote by mazinse View Post
Yeah Let me add that atherosclerosis and sternosis and even the overall long term compliance of the vessels are the main factors to be concerned for long term morbidity and mortality. Vasculogenesis is not reliable enough, especially trying to work with a damaged heart whose ejection fraction maybe not be high in the first place
Hi mazinse, as you have probably noted, people add links to mainstream journals, articles, etc... that back up what they say and allow people to read and verify what is posted.

Please start adding sources for specific information as posted above, it is very helpful to everyone trying to get a better understanding of the subject.

Thanks.


Register to reply

Related Discussions
Show that the radial component of the wave function satisfies the radial equation Advanced Physics Homework 2
Artery Plaque - Pressue Introductory Physics Homework 1
How do molecules diffuse out of an artery? Biology 1
Consequenses of striking a Vein and an artery? Medical Sciences 5
Fluids and pressures (artery question) Introductory Physics Homework 4