Search PubMed⌕ Search

Biomedical subjects

M Ehrenfeld

Publications and source records attributed to M Ehrenfeld.

At least 91 records · Page 5Linked to original sources
PubMed1994

[Bone transplantation in the orbits as a prerequisite for prosthetic management].

We report on a method of fixing orbital prostheses and artificial eyes: First the orbit is filled by cortico-spongious bone graft. Afterwards two implants are centrally located in the graft, so that the prosthesis can be kept in place by magnetic retention. The advantage of this procedure is that the implants are more stable than those located in the orbital rim.

Adult↗
PubMed1994

[Possibilities for preoperative determination of transplant quality using an osteoporosis index].

Preprosthetic procedures and reconstructive measurements are typically performed in elder patients. In this age group osteoporotic changes of the skeleton are common. The facial bones are persistently envolved within this process. Preoperative assessment of bone height and width are nowadays routine procedures in preprosthetic surgery, little attention is paid towards the bone quality at the recipient site of dental implants and the donor and recipient sites of bone-grafts. This study is performed to investigate the possibility to evaluate the bone quality prior to preprosthetic and reconstructive operations. The amount of the mineralization of the skeleton was determined in 17 patients which were scheduled for preprosthetic and reconstructive surgery with the help of Dual Energy X-Ray Absorptiometry (DEXA). The amount of mineralization of the skeleton and the osteoporosis-index, which were determined with the help of DPX-scans, are representative also for the facial skeleton. In our preliminary study patients with a low skeletal mineralization have a tendency towards increased complications after preprosthetic and bone-graft surgery. In addition the preoperative assessment of bone quality serves the basis for a accompanying osteoporosis therapy.

Adult↗
PubMed1993

From diploma to degree: follow up of R.N.-B.A. graduates of Tel Aviv University.

The Tel Aviv University post-basic nursing program, established in 1968, was the first step of nursing academization in Israel. Since then, one-third of the nursing schools in Israel have been academized. The objectives of the present study were to document changes in the worklife of the graduates since completion of the program, to learn about the influence of the program, and to identify factors promoting or impeding study in the program. A mailed questionnaire to 709 graduates produced a 46.8% response. At the time of this study 93% were working, almost half of them in hospital. Data also showed upward mobility, with 38% employed at the institutional to national supervisor level. Recommendations include continuation of the post-basic program, expansion of the clinical content, and enhanced interaction between students, graduates and faculty.

Adult↗
PubMed1993

Interleukin-3 immunoassay in systemic lupus erythematosus patients: preliminary data.

Systemic lupus erythematosus (SLE) may be associated with thrombocytopenia on one hand and lymphoma on the other. Interleukin-3 (IL-3) may contribute to both conditions. IL-3 is a pleotrophic growth factor affecting the proliferation and differentiation of stem cells to committed progenitors of several hematopoietic lineages including megakaryocytes and lymphocytes. The serum level of IL-3 determined by ELISA was found to be higher in a cohort of 16 patients with SLE in comparison to health controls. The IL-3 levels were highest in 2 patients with SLE and lymphoma. Interestingly, low serum levels were detected in SLE patients with thrombocytopenia. Our preliminary results may point to the role of IL-3 in the hematopoietic changes observed in SLE.

Enzyme-Linked Immunosorbent Assay↗
PubMed1992

Lupus anti-DNA antibodies bearing the 8.12 idiotype appear to be somatically mutated.

Anti-DNA antibodies in systemic lupus erythematosus (SLE) sera were analyzed using an antiidiotype designated 8.12 which recognizes a determinant on lambda light chains highly expressed in SLE sera. Eight of ten normal individuals had peripheral blood lymphocytes which produced high-titered 8.12-positive antibodies, following transformation with Epstein Barr virus, implying that the 8.12-reactive sequence originates in the germline gene (GLG). Of 58 SLE sera, 32 contained elevated titers of 8.12-reactive antibodies. Twenty-three of these sera had 8.12-reactive anti-DNA antibodies, suggesting a strong correlation between 8.12 idiotype and DNA binding. Moreover, 20 of 26 8.12-reactive IgG antibodies and only 4 of 10 8.12-reactive IgM antibodies bound DNA (P less than 0.05). These observations strengthen our previous findings in myeloma sera that DNA binding is associated with IgG isotype in the 8.12 idiotype system and suggest that the acquisition of anti-DNA reactivity in antibodies bearing the GLG idiotype 8.12 is achieved by somatic mutation, a feature of an antigen-driven response.

Antibodies, Antinuclear↗
PubMed1992

The Gulf War: reaction and action in institutions for the aged in Israel.

In order to learn how geriatric centres were coping during the Gulf War (1991), questionnaires were distributed to 116 unit head nurses in 16 institutions in Israel. Additional information was obtained from the directors of nursing and national supervisors in a meeting 3 1/2 months after the cease-fire. Questions focused on organization of work, behaviour of staff, patients and their families, main problems, solutions and recommendations. Data showed a very high level of commitment by staff, flexibility, initiative and creativity in meeting the emotional, physical and safety needs of the aged. Stress level was highest in the 'Scud' areas and among the aged who are mentally alert. Families visited less but increased contact by telephone. Management was supportive with guidance, transport, child care facilities, etc. They also provided beds and food for spouses of the aged residents. Major problems related to safety measures (sealing rooms, moving patients during attacks), physical exhaustion and emotional stress of staff, and reorganization of care programmes. Recommendations included development of a master plan for non-conventional attacks, preparation of buildings with structural improvements, recruitment and training of volunteers, clarification of roles of staff and education for them.

Adaptation, Psychological↗
PubMed1992

[The melanotic neuroectodermal tumor of childhood. Tumor identification with immunohistochemical methods. A case report].

The authors report a case of a melanotic neuroectodermal tumor of infancy occurring in the maxilla of a 6-month-old female infant. The tumor displayed a biphasic cellular pattern with small neuroblast-like cells and large melanocytic cells showing a highly characteristic immunophenotype. Both tumor cell types immunostained for neuron specific enolase (NSE) and vimentin. The melanocytoid cells reacted additionally with the anti-keratin antibody Kl 1 and with HMB 45, an antibody specific for melanocytic antigens. The melanotic neuroectodermal tumor of infancy usually runs a benign course, however, local recurrence and metastasis may occur. The course of the disease cannot be predicted from morphological findings.

Female↗
PubMed1992

[Nerve injuries following nerve blocking in the pterygomandibular space].

In a prospective study 506 patients with nerve blocks in the pterygomandibular space were examined before and 3-7 days after local anaesthesia. Clinical neurosensory testing including two-point discrimination revealed no differences between the neurological status before and after injection. Between December 1987 and April 1991 8 patients with 9 nerve injuries (lingual nerve n = 8, inferior alveolar nerve n = 1) after nerve blocks in the pterygomandibular space were treated. In addition to hypaesthesia or anaesthesia 5 out of 8 patients with injection damages of the lingual nerve suffered from a loss of taste sensations. Only 2 of the total of 9 nerve lesions showed a complete recovery of the neurological deficit. One patient with a persistent pain syndrome of the lingual nerve after an injection damage underwent partial nerve resection and microsurgical reconstruction after intraoperative monitoring of somatosensitive-evoced-potentials. The operation was successful for only a few weeks, afterwards a relapse of the pain syndrome took place.

Anesthesia, Dental↗