Biomedical subjects
Publications and source records attributed to L Kádár.
In 1993 the Vigano attachment appeared in Hungarian commercial turnover. On the basis of 20 cases observed during one year it can be stated, that the use is simple for dental technicians, the fitting effect is good, requires small place, insertion and removal is easy for elderly and handicapped patients; it is aesthetically satisfying and the design ensures minimum likelihood of repairs.
The authors have examined a precision attachment recently invented in Hungary. They are reporting about the experience gained during clinical examination of dentures made in different classes on the basis of the Fábián and Fejérdy classification of partial edentulousness.
Completeness of regional lymph node dissection was controlled in 23 patients with melanoma malignum. For that purpose 3--6 weeks after block-dissection lymph node scintigraphy was performed, by administration of intercostal and interdigital radiopharmacutical. Blockdissection was considered as complete, when neither after intercostal, nor after interdigital administration, any lymph nodes were delineated. On the basis of investigations until now, postoperative lymph node scintigraphy proves to be suitable, held to be a non-invasive method for controlling completeness of blockdissection.
Possible early side-effects of retinoid treatment on bones were studied with the aid of bone-scintigraphy. Isotretinoin treatment (1.0 mg/kg daily for 4 months) was given to 18 patients with acne. Fifteen patients with psoriasis received etretinate treatment (0.7-1.0 mg/kg/day) for 4 months. In the group treated with isotretinoin, pathological uptake of radiolabel was found in three cases, while in the group treated with etretinate, no bone changes attributable to treatment were found. During isotretinoin treatment, a decrease in growth-plate activity was observed. Bone-scintigraphy is considered to be a suitable method for early screening for bone changes occurring in retinoid treatment.
Fourteen male patients suffering from severe psoriasis were treated with 30 to 50 mg/day acitretin during 12 weeks. At the end of the treatment, 6 patients were in remission and 7 showed a marked improvement of the disease. One patient did not show any change. All patients experienced the usual retinoid side effects.
We report on 20 patients suffering from malignant melanoma, who had undergone regional lymph node dissection. In order to make certain that all the lymph nodes had been completely removed, we performed lymphoscintigraphy 3 to 6 weeks after block dissection with the help of a radiopharmacon intercostally or interdigitally applied. We judged the removal to be complete, if neither intercostal nor interdigital application led to any evidence of regional lymph nodes. On the basis of our experiences so far, we consider postoperative lymphoscintigraphy a suitable non-invasive method to check the completeness of block dissection.
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