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Biomedical subjects

J S Hurvitz

Publications and source records attributed to J S Hurvitz.

5 recordsLinked to original sources

Evaluation of lymphovenous anastomoses in obstructive lymphedema.

Direct lymphovenous anastomoses were constructed in dogs with chronic obstructit on the course of the lymphedema. Early patency rates of the lymphovenous anastomoses of 100 percent related to a 32 percent decrease in the lymphedema. However, by 3 weeks, all lymphovenous anastomoses became occluded and the edema level returned to the original state or was somewhat worse. Patent lymphovenous anastomoses seem clearly capable of improving the lymphedema state. However, long-time patency was not maintained in this series. We postulate that effective decompression of the lymphedematous leg by the patent lymphovenous anastomoses results in decreased flow through the anastomoses with subsequent occlusion.

Animals↗

Bone formation by revascularized periosteal and bone grafts, compared with traditional bone grafts.

Three groups of dogs were studied to compare the bone formation obtained with traditional bone grafting techniques, and that obtained with revascularized periosteum or revascularized bone grafts--all in unstressed bone. Revascularized periosteum did not produce a significant amount of bone in this unstressed model. At 4 months the revascularized rib grafts had a slightly greater tolerance to stress at the callus site than traditional bone grafts, but the incidence of non-union was the same. We conclude that the use of revascularized bone grafts should be reserved for situations in which traditional bone grafting techniques are unlikely to be successful.

Animals↗