Search PubMed⌕ Search

Biomedical subjects

R J Demuth

Publications and source records attributed to R J Demuth.

32 records · Page 2Linked to original sources
PubMed1982

Comparison of expanded polytetrafluoroethylene microvascular grafts to autogenous vein grafts.

The use of 1-mm ID by 1-cm-long expanded polytetrafluoroethylene microvascular grafts in various positions in two experimental animals did not compare favorably with the use of autogenous vein interposition grafts in controls. Light microscopy and scanning electron microscopy showed that early fibrin deposition at the anastomosis lines is followed by fully activated coagulation of the grafts. Use of antiplatelet and anticoagulant drugs, changes in techniques, and alterations in the graft material are possible future directions for improved patency with expanded polytetrafluoroethylene microvascular grafts.

Animals↗
PubMed1981

Angiokeratoma circumscriptum of the index finger in a child.

A case of angiokeratoma circumscriptum in an unusual location is described and the literature reviewed. Angiokeratoma's clinical resemblance to malignant melanoma is emphasized. Excisional biopsy is advocated as treatment when the diagnosis is in doubt.

Angiokeratoma↗
PubMed1980

Primary squamous cell carcinoma of the plantar surface of the foot.

Primary squamous cell carcinoma of the plantar surface of the foot is a rare lesion. Four case reports are summarized and a comparison made with similar cases presented elsewhere. Diagnostic work-up and review of similar lesions are used as a means of making suggestions for treatment.

Carcinoma, Squamous Cell↗
PubMed1980

Full-thickness transnasal flap.

A method is described to reconstruct a unilateral asymmetrical defect of the tip of the nose resulting from burn scar contracture and alar loss by utilizing an appropriate full-thickness rotation of tissue of similar consistency to the defect derived from the opposite side of the nose. This transfer led to the use of similar, but normal tissue, by subtracting from the dimensions of the normal side to add to the shortage of tissue on the abnormal side. This method was designed because of the lack of normal adjacent tissue available for transfer and demonstrates a relatively simple solution to a difficult problem.

Adult↗
PubMed1980

Familial multiple lipomatosis.

The literature on familial multiple lipomatosis is reviewed, and a striking case is described. The associated family history is outlined. Excisional biopsy is advocated when there is doubt in terms of diagnosis, pain, or functional impairment.

Adolescent↗
PubMed1975

Thumb length preservation following soft tissue injuries.

Six cases of major soft-tissue injuries to the mid or base of thumb are presented. In each case, pedicle reconstruction of the soft tissues was necessary in order to preserve thumb length. A variety of techniques was used, including distant tissues and local tissues. We have illustrated the superiority of local pedicles and cross-finger pedicles in thumb reconstruction and have emphasized the following points: 1) Preservation of thumb length is an important goal. 2) Conservation of the soft tissues in the initial management plays a key role in thumb reconstruction. 3) Local pedicles and cross-finger flaps have given better results than distant flaps, as evidenced by: a. better sensory capacity in the pedicle skin; b. more stable skin on the reconstructed thumb; c. less bulkiness of the pedicle skin; d. reconstruction is less time consuming.

Adult↗