Intraoperative evaluation of coronary bypass grafts by measuring myocardial blood flow using the electrolytic hydrogen clearance method

1988 ◽  
Vol 18 (5) ◽  
pp. 509-513
Author(s):  
Michio Kawasuji ◽  
Fumio Kawajiri ◽  
Yasuhiro Matsunaga ◽  
Go Watanabe ◽  
Takashi Iwa
Keyword(s):  
Blood Flow ◽  
Myocardial Blood Flow ◽  
Coronary Bypass ◽  
Bypass Grafts ◽  
Hydrogen Clearance Method ◽  
Intraoperative Evaluation ◽  
Electrolytic Hydrogen ◽  
Coronary Bypass Grafts ◽  
Hydrogen Clearance

Blood Flow Pattern and Anastomotic Compliance for Interrupted versus Continuous Coronary Bypass Grafts

2005 ◽  
Vol 6 (2) ◽  
pp. 65 ◽  
Author(s):  
Marc Gerdisch ◽  
Thomas Hinkamp ◽  
Stephen D. Ainsworth
Keyword(s):  
Blood Flow ◽  
Vessel Wall ◽  
Coronary Bypass ◽  
Bypass Grafts ◽  
Cross Sectional ◽  
Coronary Bypass Grafts ◽  
Geometric Consistency ◽  
Suturing Technique ◽  
Suturing Techniques ◽  
Key Indicators

<P>Background: Use of the interrupted coronary anastomosis has largely been abandoned in favor of the more rapid continuous suturing technique. The Coalescent U-CLIP anastomotic device allows the surgeon to create an interrupted distal anastomosis in the same amount of time that it would take to create a continuous anastomosis. This acute bovine study examined the effect of the anastomotic technique on blood flow and vessel wall function. </P><P>Methods: End-to-side coronary anastomoses were created in an open chest bovine model using the left and right internal thoracic arteries and the left anterior descending coronary artery. All other variables except suturing technique were carefully controlled. In each animal, one anastomosis was completed using a continuous suturing technique and the other was performed in an interrupted fashion using the Coalescent U-CLIP anastomotic device. Volumetric flow curves through each graft were analyzed using key indicators of anastomotic quality, and anastomotic compliance was evaluated using intravascular ultrasound. Luminal castings were created of each vessel to examine the interior surface of each anastomosis for constrictions and deformities. </P><P>Results: The interrupted anastomoses created with the Coalescent U-CLIP anastomotic device showed significant differences with respect to anastomotic compliance, pulsatility index, peak flow, and percentage of diastolic flow. The cross-sectional area and degree of luminal deformity were also different for the two suturing techniques. </P><P>Conclusions: In this acute bovine model, interrupted coronary anastomoses demonstrated superior geometric consistency and greater physiologic compliance than did continuously sutured anastomoses. The interrupted anastomosis also caused fewer disturbances to the flow waveform, behaving similarly to a normal vessel wall. The combination of these effects may influence both acute and long-term patency of the coronary bypass grafts.</P>

The Influence of Isoflurane on Blood Flow in Coronary Bypass Grafts

1985 ◽  
Vol 29 (8) ◽  
pp. 758-763 ◽  
Author(s):  
G. Öhqvist ◽  
G. Settergren ◽  
S. Ekeström ◽  
L. Å. Brodin
Keyword(s):  
Blood Flow ◽  
Coronary Bypass ◽  
Bypass Grafts ◽  
Coronary Bypass Grafts

Analysis of flowmetric parameters of blood flow through coronary bypass grafts in high-risk surgical patients

2019 ◽  
Vol 25 (1) ◽  
pp. 53 ◽  
Author(s):  
R. V. Sidorov ◽  
E. P. Talalaev ◽  
V. N. Shchetko ◽  
D. Iu. Pospelov ◽  
I. F. Shlyk
Keyword(s):  
Blood Flow ◽  
High Risk ◽  
Coronary Bypass ◽  
Surgical Patients ◽  
Bypass Grafts ◽  
Coronary Bypass Grafts ◽  
Flow Through

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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