Abstract:
:This investigation initiates the quantitative, hemodynamic assessment of interpositional grafts in small rat arteries. The left femoral arteries in 16 Sprague-Dawley rats were transected at two levels, and were then repaired using interrupted suturing technique. This effectively provided an ideally sized and histologically matched interposition graft. The 20-MHz PUDVM method was used to measure blood velocities, and derive values for vessel lumen area, temporal mean of the spatial mean velocity (Vsm), and volumetric flows. Measurements were completed distal to the interposed graft. Variables were quantitated in the preoperative and at the 5-, 15-, and 30-minute postoperative intervals. Statistical analysis of data indicated that the interpositional grafting procedure resulted in increased vessel lumen area and decreased Vsm, but, importantly, volumetric flow (about 8.20 ml/min) remained unchanged. This study demonstrated that, although hemodynamic characteristics are altered, volumetric flow can be restored after an experimental, interpositional grafting procedure in small arteries.
journal_name
Microsurgeryjournal_title
Microsurgeryauthors
Blair WF,Chang L,Pedersen DR,Gabel RH,Bell LDdoi
10.1002/micr.1920070207subject
Has Abstractpub_date
1986-01-01 00:00:00pages
84-6issue
2eissn
0738-1085issn
1098-2752journal_volume
7pub_type
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