ISSN:
1435-0130
Schlagwort(e):
Delay effect
;
Vascular changes
;
Edema
;
Longitudinal pattern
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Medizin
Notizen:
Summary The delay effect on the flap was studied through observation of the vascular changes in the flap which occurred during the course of the delay. 5 mm × 10 mm flaps were prepared on the distal part of the rabbit ear where the cartilage and subcutaneous tissue are very thin. The flaps were raised from the perichondrium and sutured back into their original site. Using a microscope, vascular changes in the flaps in the course of the delay were examined through transmission ray without any medication. Although the vascularity was indistinct due to edema for 3–4 days after raising the flap, longitudinal vessels emerged when the edema subsided. After 2–3 weeks of the longitudinal pattern, the flap vascularity then gradually returned to the original pattern. If the sectioned large transverse vessels again became anastomosed across the vertical incisions, the longitudinal pattern quickly disappeared. Computer analyses were further made on the changes in the vascular pattern, which were photographed at a set interval. It was shown that these visible changes were mostly not derived from neovascularization, but rather a result of dilatation of preexisting vessels, mostly the small ones less than 0.3 mm in diameter.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00193662
