[Neoangiogenesis and human amniotic membrane. A clinico-instrumental study in phlebostatic ulcer of the lower extremities].
The present study was made in order to determine if granulation tissue development after treatment with Human Amniotic Membrane (HAM) is related with instrumental photoplethysmographically evidenced changes of the "ulcus layer". Daily, HAM fragments were disposed along the continuity solution of external patients with opened postthrombotic ulcus cruris. Instrumental examinations were made before, a week after and two weeks after treatment, and after the complete ulcus healing. Ulcus with a slight granulous or fibrogranulous layer developed a granulation tissue within the first week of treatment. On the contrary, in continuity solutions with necrotic layer, treatment with HAM failed. After the first week of treatment, a 84% of ulcus with slight granulation and fibrinogranulation, presented some sphygmic variations respect to baseline levels, like: raising in the amplitude and dicrotism appearing. Within the first week, all of the continuity solutions showed significant sphygmograms with a regular vascularization on the layer, this period of time concurred with the complete granulation phase of the ulcus. Long-preserved HAM stimulates in a significant way the appearing of the granulation tissue, within the first week of treatment. Sphygmic raisings are directly proportional with the amount of granulated tissue evidenced on the layer of the continuity solution.
Rosato
E G
EG
Department of Vascular Surgery, University Clinical Center, Belgrado, Yugoslavia.
Radak
D
D
Djukic
V
V
D000328:Adult; D000368:Aged; D001684:Biological Dressings; D002908:Chronic Disease; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007866:Leg / Q000098:blood supply*; D007871:Leg Ulcer / Q000503:physiopathology / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D009389:Neovascularization, Pathologic / Q000503:physiopathology / Q000628:therapy*; D010991:Plethysmography; D014689:Venous Insufficiency / Q000503:physiopathology / Q000628:therapy