PubMed HealthSearch

Biomedical subjects

L Schmid

Publications and source records attributed to L Schmid.

At least 19 recordsLinked to original sources

[Initial experiences with the humerus interlocking nail].

A preliminary report is given on the good results of eleven patients, who had been treated with a locking nail for a fracture of the humerus at three different trauma departments. No non-union, infection or radial palsy has been seen nor was there any neurovascular complication intraoperatively. Four patients had misalignments of up to 15 degrees, whereof three of them had combined varus-recurvation-angulations without functional or cosmetic sequelae. All but one had excellent functional results six months postoperatively. Bone healing could be confirmed three months postoperatively. Only transverse and spiral fractures of the second to fifth sixth had been treated until now, though open fractures up to the second degree can be managed too. Finally, some technical issues are considered, which include a better guiding device, the use of cancellous screws for proximal looking, a more oblique position of one of the proximal screwholes to obtain some kind of interfragmentary compression for appropriate fractures, and the use of a Williams-screwdriver.

Bone Nails

Results from a statewide approach to adolescent tobacco use prevention.

BACKGROUND: The 1985 Minnesota Legislature established guidelines for school-based tobacco-use prevention programming and provided financial incentives to school districts to encourage them to adopt a broad range of preventive measures. The Minnesota-Wisconsin Adolescent Tobacco-Use Research Project was funded by the National Cancer Institute in 1986 to evaluate the Minnesota initiative through two parallel studies. METHODS: The Four Group Comparison Study was a prospective study of 48 school "units" which were randomly assigned to one of four conditions in 1987. Baseline observations were taken in the sixth grade in 1987, interventions were delivered in the seventh grade, and follow-up observations were taken in the seventh, eighth, and ninth grades. The Four Group Comparison Study was designed to evaluate the three middle-school interventions that were most widely adopted by Minnesota school districts as a result of the 1985 legislation. The Two State Comparison Study was a serial cross-sectional study of representative districts in Minnesota and Wisconsin. Annual surveys of ninth graders were conducted from 1986-1990. The Two State Comparison Study was designed to determine whether tobacco-use patterns changed in Minnesota relative to Wisconsin following the Minnesota legislation. RESULTS: The prospective study indicated that none of the interventions was more effective in reducing adolescent tobacco use compared with a randomized control group. The serial cross-sectional study revealed that there was a modest net decline in Minnesota relative to Wisconsin from 1986 to 1990, but that it was within the range of chance variation. CONCLUSIONS: Taken together, these results indicate that this legislative initiative was insufficient to reduce adolescent tobacco use statewide during the 5-year study period. Together with results from other recent studies, they suggest that even more intensive efforts may be required to effect widespread reductions in adolescent tobacco use.

Adolescent

The fates of Czechoslovak contestants in Olympic games.

Since the Second Olympic Games of the new era up to the Games in 1988 on the whole 2031 Czechoslovak competitors participated in both Summer and Winter Games. The author succeeded in compiling items on the length of life and causes of decease of 265 Olympic participants who died up to the end of 1989. The study of those items revealed that the length of living of those athletes who died in the period 1950 till 1989 was 67.4 years. That indice may be compared with men in population with a mean length of life 67.7 years in 1988. It is however necessary to take into consideration that the studied sample of Olympic competitors represents a certain selection of men. The causes of natural death of Olympic competitors do not differ in principle from natural deceases of other former Czechoslovak athletes and also no expressive differences were found in comparison with natural causes of death of men in population.

Aged

[Application of computer tomography (CT) as an additional means of follow-up gynecologic neoplasms-a case documentation (author's transl)].

The application of CT represents an important progress not only in diagnostic and therapeutic planning, but also in the evaluation of the effectiveness of follow-up procedures in gynecologic cancer therapy. The evaluation of the results of some follow-up procedures in a case of leiomyosarcoma uteri shows significance and importance of CT as a new radiologic method. Inspite of preliminary negative results of extensive radiologic, myelographic, laboratory investigations and of technetium- and gallium-scintigraphy, CT proved a solitary metastasis located at S-1 in the os sacrum. The diagnostic aspects of follow-up examinations in patients undergoing cytoreductive surgery or radiotherapy are discussed. CT should not be placed at first rank position, but be considered as an helpful additional means for special cases.

Bone Neoplasms

[Unilateral pulmonary artery aplasia with special reference to lung scintigraphy (author's transl)].

In a case of unilateral aplasia of one Arteria pulmonalis, i.e. proximal interruption, the diagnostic value of perfusion and ventilation scintigraphy is shown to be simple and non-invasive, exposing the patient to a lower radiation dose than other diagnostic screening methods. When an interruption of a main pulmonary artery is radiologically suspected the scintigraphic examination allows to distinguish between vascular and/or parenchymatous pulmonary diseases, thus clarifying the diagnosis of primary pulmonary malperfusion. The results of other examinations, the relevant literature, the pathogenesis and pathophysiology of unilateral pulmonary artery aplasia as well as therapeutical and prognostic aspects are reviewed.

Adolescent

[Radioimmuno-assay of TSH before and after TRH in 350 patients with previous resection of euthyroid goiter (author's transl)].

Radioimmuno-Assay (RIA) of Thyroid-Stimulating-Hormone (TSH) was performed before and after i.v.-injection of Thyrotropin-Releasing-Hormone (TRH) in 350 patients subsequent to previous resection of euthyroid goiter to find out the optimal treatment schedule for preventing recurrent goiter. In patients without recurrent goiter the dosis of thyroid hormone was considered to be sufficient, if the difference in TSH-levels before and after TRH (delta-TSH) was equivalent to or less than 10 microunits/ml. In patients with recurrent goiter the optimal suppressive dosis of thyroid hormone was accepted for a delta-TSH less than or equal to 2,5 microunits/ml. 126 out of 135 patients, who were set on an immediate and continuous postoperative treatment were free of goiter, 58 presented a delta-TSH less than or equal to 10 microunits/ml (average interval of treatment = 2,5 years), 68 patients had elevated delta-TSH (average interval of treatment 2,1 years) as a sign of insufficient treatment. In 9 patients recurrent goiter was detected in spite of "adequate" treatment. 41 out of 57 patients, set on delayed and partly continuous, partly discontinuous treatment had recurrent goiter (in average after 10 years). delta-TSH was not indicative. 158 patients without any treatment had borderline or slightly increased delta-TSH (in average after 10 years). 122 of these 158 patients had recurrent goiter, 36 were free of goiter. The results favor the necessity of treatment with thyroid hormones starting immediately after operation and with continuous treatment. The combined use of TSH-RIA and TRH-test reliably informs about the individual thyroid hormone dosis necessary for prevention or treatment of recurrent goiters.

Goiter

[A rare cumulation of vena cava catheter complications in the same patient (author's transl)].

Two complications that occurred in connection with the use of CVP catheters in the SVC and IVC in one patient are described: 1. Extravascular injection in the superior mediastinum and in the extrapleural space. 2. Massive thrombosis of the IVC. The differential diagnosis of a wedening of superior mediastinum is discussed. Recommendations are made to prevent these complications.

Adult

[Fractures of the distal end of the femur and their management using condyle plates].

Forty-one patients with fractures of the distal end of the femur are investigated and the importance of the angular plate designed by the AO group for stabilization of these fractures is discussed. For good results it is necessary to have the complete set of instruments and to consider biomechanical principles for stable osteosynthesis, so that early active exercises can be performed. The operation is not always simple but is indicated considering the poor functional and anatomical results after conservative treatment or inadequate fixation.

Adult

[Pulmonary edema due to unilateral pneumothorax (unilateral shock lung) (author's transl)].

Unilateral pulmonary edema due to chest drainage is reported in the present paper. Drainage was carried out, because of pneumothorax. The disorder could be treated successfully with differenciated mechanical respirator therapy and additionally with methylprednisolon, heparin, spirolactone and dopamin. Based upon clinical symptoms and on present literature we suggest to account this so called "pulmonary edema exvacuo" to the main complex of acute respiratory insufficiency (unilateral shock lung).

Adult