Current indications for axillounifemoral and axillobifemoral bypass grafts

1987 ◽  
Vol 5 (6) ◽  
pp. 828-832 ◽  
Author(s):  
Peter G. Kalman ◽  
Marilyn Hosang ◽  
Claudio Cina ◽  
K. Wayne Johnston ◽  
F. Michael Ameli ◽  
...  
Keyword(s):  
Bypass Grafts ◽  
Axillobifemoral Bypass

scholarly journals Current indications for axillounifemoral and axillobifemoral bypass grafts

1987 ◽  
Vol 5 (6) ◽  
pp. 828-832 ◽  
Author(s):  
Peter G. Kalman ◽  
Marilyn Hosang ◽  
Claudio Cina ◽  
K.Wayne Johnston ◽  
F.Michael Ameli ◽  
...  
Keyword(s):  
Bypass Grafts ◽  
Axillobifemoral Bypass

Assessment of Pressure Drop Flowrate Relationship of Axillobifemoral Bypass Grafts

1991 ◽  
Vol 205 (4) ◽  
pp. 243-249 ◽  
Author(s):  
T V How ◽  
S Al-Shukri
Keyword(s):  
Pressure Drop ◽  
In Vitro Study ◽  
Side Branch ◽  
Lower Limbs ◽  
Bypass Grafts ◽  
Pressure Drops ◽  
Pulsatile Pressure ◽  
Axillobifemoral Bypass

An in vitro study was conducted to measure the pressure distributions in knitted polyester axillobifemoral bypass grafts under steady and pulsatile flow of a Newtonian fluid. The relationship between pressure drop and flowrate was determined across the outflow branches of two types of axillobifemoral grafts. Pressure losses were greater across the 90° side branch of the T-type graft than in the Y-type graft at all Reynolds numbers studied. Mean pulsatile pressure drops in the T graft were greater than those measured in steady flow at the same Reynolds number. Estimates of the likely in vivo pressure drops are made under resting and exercise flow conditions. It is suggested that the Y graft is less likely to have a significant effect on blood supply to the lower limbs, even at high blood flowrates.

Comparison of Quantification Methods of111In-Labelled Platelet Deposition in Peripheral Bypass Grafts

1987 ◽  
Vol 26 (02) ◽  
pp. 87-92 ◽  
Author(s):  
A. Verbruggen ◽  
C. De Bakker ◽  
A. Vandecruys ◽  
J. Joosten ◽  
A. Nevelsteen ◽  
...  
Keyword(s):  
Gamma Camera ◽  
Reliable Method ◽  
Survival Curve ◽  
Region Of Interest ◽  
Reference Region ◽  
Visual Interpretation ◽  
Bypass Grafts ◽  
Antithrombotic Drugs ◽  
Exponential Regression ◽  
Peripheral Bypass

The action of antithrombotic drugs can be evaluated by measuring the deposition of111In-labelled platelets on peripheral bypass grafts several days after injection. This evaluation can be performed qualitatively (visual interpretation on the daily images) or quantitatively. Four different methods which calculate the ratio of platelet uptake with a reference region are compared: two methods use a gamma camera and two a detector. A blood sample or the region under the sternal angle are used as reference. The daily ratio of the counts, recorded by a gamma camera in a region of interest covering the graft, and the blood radioactivity interpolated from a platelet survival curve appears to be the most reliable method. The information of all the ratios can be combined in a single thrombogenicity index which reflects the daily rise of a linear or exponential regression versus time.

Biodegradable small calibre polydioxanone-based vascular prostheses: Potential as coronary bypass grafts

2008 ◽  
Vol 56 (S 1) ◽  
Author(s):  
B Walpoth ◽  
M Cikirikcioglu ◽  
D Mugnai ◽  
JC Tille ◽  
E Pektok ◽  
...  
Keyword(s):  
Coronary Bypass ◽  
Bypass Grafts ◽  
Vascular Prostheses ◽  
Coronary Bypass Grafts
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