PubMed Health⌕ Search

Biomedical subjects

M Ayhan

Publications and source records attributed to M Ayhan.

11 recordsLinked to original sources
PubMed2000

Cartilage shaping using the Er:YAG laser: preliminary report.

Cartilage grafts have been widely used for reconstruction of congenital or acquired deformities. Reshaping and preserving the new shape of the cartilage grafts have been a problem. In this in vitro experimental study the authors studied the effect of the Er:YAG laser on cartilage reshaping in comparison with scalpel stripping and suture holding. The study consisted four groups (n = 9): group I, untouched cartilage; group II, the short edges of the cartilage were sutured to each other; group III, cartilage was incised using a scalpel; and group IV, Er:YAG laser stripping was applied to the cartilage. Changes in the shape of cartilage were evaluated at 15 minutes, and days 1, 4, and 10. The majority of cartilage in the scalpel-stripped group returned to the initial shape by day 10, whereas the laser-stripped cartilage showed progressive warping day by day, and almost all cartilage formed a circle by day 10. The Er:YAG laser enhanced cartilage warping by a mechanical effect of stripping and a thermal effect of laser radiation resulting in ultrastructural changes.

Animals↗
PubMed1998

Ectopic submandibular thyroid tissue.

We reported a case of a 66 year-old male patient with a mass located in the right submandibular region. Surgical excision of the mass was performed and histologic examination revealed that the tumor was ectopic thyroid tissue. Additionally, imaging studies confirmed that the thyroid gland was found in its normal location and the patient had normal thyroid function testing. In reviewing the literature, we found submandibular thyroid tissue to be a rare entity with only 4 cases described. We discussed embryologic development of the normal thyroid gland and some explanations as to the origins of several forms of ectopic thyroid tissue, including that found in the submandibular region.

Choristoma↗
PubMedDate not supplied

Multiple atrophies following tooth extraction.

Following a molar tooth extraction, the patient developed a depression and atrophy of the right ear, the right half of the mentum, and the tongue. These atrophy deformities were successfully corrected with dermografts.

Adipose Tissue↗
PubMedDate not supplied

Use of beta blockers for increasing survival of free fat grafts.

Fat tissue is abundant in the body and preferred in soft tissue augmentation. Since resorption is its greatest disadvantage, many agents have been tried in an attempt to increase fat graft survival in various studies. Yet selective beta1 blocker had not been used before. The effect of selective beta1 blockers on resorption following auto-transplantation of free fat graft was examined in rats. The effect of selective beta1 blockers was compared with those of insulin and saline solution as a control. For this comparison, the weight of fat grafts was measured both during and nine months after operation using the "liquid overflow method" in which obtained material was put into 5 cc syringe filled with saline solution and the increase in liquid level was recorded as graft volume. Histological examination of grafts and statistical analyses of the results were also made. Our in vivo study demonstrated that selective beta1 blocker significantly increased free fat graft survival. It is our conclusion that selective beta1 blocker is a promising agent for decreasing fat graft resorption.

Adipose Tissue↗