0
We're unable to sign you in at this time. Please try again in a few minutes.
Retry
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
Retry
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
ARTICLE |

Effect of Venous Valves on Grafts for Coronary Artery Bypass

Saihou Hayashi, MD; Shintaro Fukunaga, PhD; Hiroshi Ishiara, MD; Yoshiharu Hamanaka, MD; Taijiro Sueda, MD; Yuichiro Matsuura, MD
Arch Surg. 1992;127(3):339-341. doi:10.1001/archsurg.1992.01420030113021.
Text Size: A A A
Published online

• The effect of venous valves on blood flow and patency in grafts of the long saphenous vein for coronary artery bypass is examined. Our experimental model involved both diastolic-predominant blood flow and transient systolic regurgitation, and the waveform was similar to that of in vivo coronary circulation. In this model, blood flow was assessed in the presence or absence of venous valves. It was found that coronary artery blood flow was significantly greater in the presence of venous valves. Angioendoscopy showed that the movement of the graft valves was strong and rhythmic. It seems that valve preservation may be desirable in grafts for coronary artery bypass.

(Arch Surg. 1992;127:339-341)

Topics

Sign in

Create a free personal account to sign up for alerts, share articles, and more.

Purchase Options

• Buy this article
• Subscribe to the journal

Figures

Tables

References

Correspondence

CME
Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.
Submit a Comment

Multimedia

Some tools below are only available to our subscribers or users with an online account.

Sign in

Create a free personal account to sign up for alerts, share articles, and more.

Purchase Options

• Buy this article
• Subscribe to the journal

Related Content

Customize your page view by dragging & repositioning the boxes below.

Jobs
brightcove.createExperiences();