Experimental Evaluation of Microarterial Grafts in Rats and Rabbits

J, Melka; Charbonneau, Roland; Bossé, Jean-Paul

doi:10.1097/00006534-197902000-00015

Cited by 25 publications

(9 citation statements)

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“…Previous histopathological studies of microvenous repair following interposition grafting have described endothelial hyperplasia and virtually complete necrosis of the remaining vessel wall in a healing, patent graft. 18, 19 Transmission electron microscopy in the current study provided evidence that the same process occurs in 1 .O-mm freezedried veins. The freeze-drying process caused a generalized destruction of the entire vessel wall that was clearly visualized at the ultrastructural level.…”

Section: Discussionsupporting

confidence: 61%

Microsurgical application of freeze‐dried venous allografts

1985

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Freeze-dried venous interposition allografts with an internal diameter of 1.0 mm and a length of 1.0 cm were placed into the femoral arteries of 17 Sprague-Dawley albino male rats in order to investigate patency and host tissue response. The immediate patency rate was 88%. The epigastric island flap was monitored as a sign of patency in the early postoperative period (defined as 1 to 3 days). Twelve of the 17 subjects were observed for 2 months, at which point 66% (8/12) remained patent. There were two aneurysmal dilatations. Histopathological studies and transmission electron microscopy demonstrated that freeze-dried veins undergo complete remodeling in vivo by a normal reparative process and that they do not induce a cellular immune response in the host.

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Section: Discussionsupporting

confidence: 61%

Microsurgical application of freeze‐dried venous allografts

1985

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“…However, the lumens of the venous grafts are always narrowed with massive fibrous hyperplasia and proliferation of smooth muscle cells in the postoperative course. 21,22 In our explorative operation, obvious thrombogenesis in the venous graft suggested improper use of venous bridge. Artery bridge may be a good choice, but the donor sites are so rare in children that graft demands cannot be met.…”

Section: Discussionmentioning

confidence: 94%

Microsurgical Replantation for Child Total Scalp Avulsion

Liu

Dong

Wang

et al. 2009

Journal of Craniofacial Surgery

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Total scalp avulsion is an intractable problem in clinical practice. It often occurs in female adults, but rarely in children. In this article, we described the replantation of 2 scalp segments in a 4-year-old girl. The right segment involved the hairy scalp merely, whereas the left one involved the hairy scalp, forehead, eyelid, ear, and part of the face. Warm ischemia time was about 28 hours, and operation time was 13 hours. Although an explorative operation was performed, the left segment survived partly. A relatively satisfactory aesthetic result was obtained by transplanting split skin from the abdomen and part of the survived right avulsed scalp. According to our experience, every effort should be undertaken to save the avulsed scalp, even in severely damaged and juvenile cases.

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“…Historically, the arterial grafting for arterial defects was performed earlier than the vein grafting. 8,[11][12][13] An artery has a thick media and is easier to handle than a vein. Lye et al found a slight autograft enlargement in only one out of 28 arterial grafts used clinically for arterial defects in a 7-year follow-up with no later occlusions.…”

Section: Discussionmentioning

confidence: 99%

“…The stenosis in the telescoping technique might decrease with time, as in the arterial graft placed in the artery using the conventional anastomotic technique. 8 The purpose of this study is to examine the long-term fate of the inserted stump and intimal hyperplasia seen in the telescoping anastomosis using the arterial grafting model for arterial defects. This model not only provides the optimal environment for the telescoping anastomosis as previously stated but also makes it possible to clearly differentiate the intimal hyperplasia from the arterial wall, and to precisely judge atrophy or hypertrophy of the inserted vessel stump because the artery has a thick, discrete media.…”

Section: Microsurgery 19:189-195 1999mentioning

confidence: 99%

Long-term result of arterial grafts interposed for arterial defects using the telescoping anastomotic technique: Histological and angiographic study

et al. 1999

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The arterial grafting model for arterial defects provides an ideal environment for the microvascular telescoping anastomosis because tension of the repaired vessel is maintained low and deformities of the inserted vessel end is minimal due to the thick arterial wall. The left femoral artery was grafted in 46 rats into the defect created in the right femoral artery using the telescoping anastomotic technique at both the proximal and distal anastomoses. The grafts were seen histologically and angiographically 3 to 4 months postoperatively in order to fairly evaluate the telescoping anastomosis in terms of long-term patency, stenosis, and changes in the outer and inner walls at the anastomosis. All arterial grafts were patent 3 to 4 months postoperatively and there were no aneurysms at the anastomoses. Enlargement of the graft diameter was minimal. The rate of stenosis at the anastomosis was smaller than that 1-day postoperatively. Even though the thick arterial wall was initially inserted and the intimal hyperplasia was still present at the anastomosis 3 to 4 months postoperatively, the long-term stenosis was relatively mild due to the atrophy in the overlapped walls.

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Experimental Evaluation of Microarterial Grafts in Rats and Rabbits

Cited by 25 publications

References 0 publications

Microsurgical application of freeze‐dried venous allografts

Microsurgical application of freeze‐dried venous allografts

Microsurgical Replantation for Child Total Scalp Avulsion

Long-term result of arterial grafts interposed for arterial defects using the telescoping anastomotic technique: Histological and angiographic study

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