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Biomedical subjects

C Bosshard

Publications and source records attributed to C Bosshard.

22 records · Page 2Linked to original sources

[On the differential diagnosis of bilateral retrobular optic neuritis (author's transl)].

Two cases of optic nerve neuritis are reported. The first had typical clinical symptoms and the other had an atypical course. In the case of the first patient an astrocytoma was found in the right frontal lobe. The aetiology of the second case was a meningioma of the tuberculum sellae. The clinical findings in our cases are discussed with regard to 58 cases in the literature. In all cases of optic neuritis with typical and atypical course a tumor of the central nervous system must always be taken into consideration.

Adult↗

[Mediastinoscopy or thoracotomy? A prospective randomized study].

A prospective, controlled, randomized trial on the value of mediastinoscopy was performed during a 12-month period (1969-1970) on 130 patients with a bronchogenic carcinoma. Patients to be admitted to the study had to meet the criteria of being clinically operable. 126 patients could be followed up for the following 5 years. Of these patients 62 had a mediastinoscopy previous to the thoracotomy (Group A) and 64 had directly a thoracotomy (Group B). A curable resection was possible in Group A in 56.4% and in 73.5% in Group B. The perioperative mortality (30 days) is 8% for Group A and 16% for Group B. The mean survival rate is for patients with a positive mediastinoscopy which did not underwent thoracotomy with 6.8 months better than for patients which underwent directly an exploratory thoracotomy (2.7 months). The 5-year survival rate is despite the high perioperative mortality for Group B (16%)higher than for Group A(10%). Mediastinoscopy is with its low mortality and its better short surviving rate of great value for high risk patients and inoperable patients with bronchogenic carcinomas, but reduces the overall resectability and the 5-year survival rate.

Carcinoma, Bronchogenic↗

Combined A- and B-scan echography. Preoperative evaluation of vitrectomy patients.

The preoperative ultrasound evaluation of vitrectomy patients is of great value. The combined use of an optimized and standardized A-scan and B-contact scan echography gives good results. While the A-scan echography gives information about the quantitative and kinetic characteristics of the examined structures, B-scan echography demonstrates, in addition, the shape and topographic relationship of the investigated structures. The combination of A-scan and B-scan echography is not time-consuming and does not inconvenience the patient as does the use of an immersion water bath. The results of 105 echographically evaluated vitrectomy patients are presented.

Eye Diseases↗

[The correction of anisomyopia with contact lenses (author's transl)].

Currently it is believed that correction of anisomyopia with contact lenses is contraindicated because most anisomyopias are axial. By determination of dioptric aniseiconia it has been shown that this is smaller than generally believed also with the correction by contact lenses. In childhood it is advisable to correct an anisomyopia fully as early as possible because the distortion of room perception by spectacles seems to play a much bigger role in higher anisomyopia than the functional aniseiconia. The results are shown in tables.

Adolescent↗