[Experimental study on the implantation of a vascular bundle into subcutaneous tissue for improving local blood...

This paper reports that the adjacent vascular bundle was transferred into tubed flap in order to investigate the course of the angiogenesis of the vascular bundle by method of microangiography, pathology, transparent tissue specimens and microvascular casts, and effect on blood supply by measuring blood flow and skin temperature. The studies gave us the following results: New capillaries of vascular bundle occurred at 2nd day after operation, and gradually increased in number and then formed rich bush-like vessels on the surface of vascular bundle. The time of the earliest anastomosis between the vessels of the implanted vascular bundle and the recipient site was four day postoperation. The early anastomosed vessels were a few capillaries and some of them were changed into vein-like or artery-like structure. Improving the blood circulation in tubed flap begins on five day postoperation. The anastomosed vessels between the vascular bundle and tubed flap tend to stabilize at 10 day postoperation. The higher pressure in small arteries of the vascular bundle may be one of the main factors that vascular bundle possesses potential ability in angiogenesis and improves the blood circulation.