Pre-arterialisation of the arterialised venous flap: an experimental study in the rat.

Arteriovenous fistulae cause haemodynamic and morphological changes to the local venous channels. We have used the concept of preformed arteriovenous fistulae to study the viability improvement of arterialised venous flaps. Five groups of flaps were created using the abdominal skin of the Wistar rat (n= 10 in each group) with a silastic sheet implanted underneath.

Pre-arterialisation of an arterialised venous flap: clinical cases.

Many factors affecting the survival of arterialised venous flaps have been elucidated, both experimentally and clinically. The survival of large arterialised venous flaps has been reported, with varying results. Large arterialised venous flaps with preformed arteriovenous fistulae at the donor sites have been successfully performed in experimental animals.

Malignant mesenchymoma of ulnar nerve: combined sarcoma of nerve sheath and rhabdomyosarcoma.

Malignant mesenchymoma within the right ulnar nerve of an 8 year old boy is described. The patient did not have stigmata of von Recklinghausen's neurofibromatosis. The growing and painful tumour was excised five and a half detection, and recurred five months later.