Biomaterial Database

Duplex imaging of in situ saphenous vein bypass grafts and late failure reduction. 1988

S T Bartlett, and L A Killewich, and C Fisher, and R E Ward

University of California, Department of Surgery, Sacramento, California 95817.

Duplex ultrasonic scanning was applied prospectively to 20 consecutive cases of in situ saphenous vein infrainguinal bypass 1, 3, 6, and 12 months postoperatively. All 20 (100 percent) and 17 of 19 (90 percent) of the proximal and distal anastomoses, respectively, could be imaged satisfactorily. Graft velocity ranged from 30 to 100 cm/s. Of three grafts with low velocity, one had impending graft failure and two had inherently low velocity but remained patent. Five defects in three grafts were detected. In three cases, intervention prevented graft failure. The primary patency rate was 80 percent, but was improved to 95 percent as a result of graft surveillance and simple revisions. Duplex scanning is a superior method for postoperative in situ saphenous vein bypass surveillance. We recommend that patients be studied 1 month postoperatively and every 3 to 6 months thereafter.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008722	Methods	A series of steps taken in order to conduct research.	Techniques,Methodological Studies,Methodological Study,Procedures,Studies, Methodological,Study, Methodological,Method,Procedure,Technique
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D011183	Postoperative Complications	Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.	Complication, Postoperative,Complications, Postoperative,Postoperative Complication
D011446	Prospective Studies	Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.	Prospective Study,Studies, Prospective,Study, Prospective
D011859	Radiography	Examination of any part of the body for diagnostic purposes by means of X-RAYS or GAMMA RAYS, recording the image on a sensitized surface (such as photographic film).	Radiology, Diagnostic X-Ray,Roentgenography,X-Ray, Diagnostic,Diagnostic X-Ray,Diagnostic X-Ray Radiology,X-Ray Radiology, Diagnostic,Diagnostic X Ray,Diagnostic X Ray Radiology,Diagnostic X-Rays,Radiology, Diagnostic X Ray,X Ray Radiology, Diagnostic,X Ray, Diagnostic,X-Rays, Diagnostic
D001783	Blood Flow Velocity	A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.	Blood Flow Velocities,Flow Velocities, Blood,Flow Velocity, Blood,Velocities, Blood Flow,Velocity, Blood Flow
D005260	Female		Females
D006083	Graft Occlusion, Vascular	Obstruction of flow in biological or prosthetic vascular grafts.	Graft Restenosis, Vascular,Vascular Graft Occlusion,Vascular Graft Restenosis,Graft Restenoses, Vascular,Occlusion, Vascular Graft,Restenosis, Vascular Graft
D006085	Graft Survival	The survival of a graft in a host, the factors responsible for the survival and the changes occurring within the graft during growth in the host.	Graft Survivals,Survival, Graft,Survivals, Graft