856 resultados para Medizinische Diagnostik


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A 29-year-old woman with a long-lasting history of oligoamenorrhea, fell pregnant shortly after being diagnosed with acromegaly. LABORATORY TESTS AND IMAGING: A high IGF-1 concentration and an oral glucose tolerance test confirmed the diagnosis. Cranial magnetic resonance imaging demonstrated a macroadenoma of the pituitary with suprasellar extension and compression of the optic chiasm leading to incomplete hemianopsia.

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BACKGROUND AND OBJECTIVE: The standard surgical repair of disease of the aortic valve and the ascending aorta has been combined replacement, which includes the disadvantage of inserting a mechanical valve. We have investigated an individualized approach which preserves the native valve. PATIENTS AND METHODS: Between October 1995 and October 1997, a consecutive total of 101 patients (72 men, 29 women, aged 21-83 years) underwent operations for disease of the ascending aorta: aortic dissection type A in 34 patients, aneurysmal dilatation in 67. Dilatation of the aortic arch was associated with aortic regurgitation in 58 patients. There were 11 patients with aortic valve stenosis or previously implanted aortic valve prosthesis among a total of 46 whose aortic valve was replaced (group II). Supracommissural aortic replacement with a Dacron tube was performed in 16 patients (group I) with normal valve cusps and an aortic root diameter < 3.5 cm. In 28 patients with an aortic root diameter of 3.5-5.0 cm the aortic root was remodelled (group III). Resuspension of the native aortic valve was undertaken in 11 patients with aortic root dilatation of > 5.0 cm (group IV). RESULTS: Operative intervention was electively performed in 72 patients, without any death. Of 29 patients operated as an emergency for acute type A dissection four died (14%). In 55 of the 58 patients with aortic regurgitation in proved possible to preserve native aortic valve (95%). In the early postoperative phase and after an average follow-up time of 11.8 months, transthoracic echocardiography demonstrated good aortic valve function, except in one patient each of groups III and IV who developed aortic regurgitation grades I or II. CONCLUSION: The described individualized approach makes it possible to preserve the native aortic valve in most patients with aortic regurgitation, at a low risk. Follow-up observations so far indicate good results of the reconstruction.

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OBJECTIVE: To report preliminary results with a new surgical method of treating terminal emphysema by bilateral reduction of lung volume. PATIENTS AND METHODS: In a prospective study, the results obtained with the first 20 consecutive patients (mean FEV1: 590 +/- 180 ml) who underwent operative reduction of lung volume were recorded. 19 of the 20 patients had required continuous oxygen supply. RESULTS: The patients were extubated 8.5 +/- 6 h postoperatively; thoracic drainage was removed after 9 +/- 6 days. The degree of dyspnoea was decreased in all patients (3.5 +/- 0.5 vs 0.5 +/- 0.1). Significant reduction of overinflation occurred soon after the operation (residual volume 273 +/- 125 to 201 +/- 107% of normal; total capacity from 142 +/- 18 to 109 +/- 22% of normal), as well as reduction in the degree of obstruction (FEV1 from 18 +/- 6 to 24 +/- 7% of normal; for each, P < 0.05). One patient died 3 weeks post-operatively of Candida infection. CONCLUSION: The method looks promising for the treatment of selected patients and may thus provide an alternative to lung transplantation.

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BACKGROUND: Chronic thromboembolic pulmonary hypertension is a late sequela following acute pulmonary embolism. Incomplete resolution of thrombotic material results in persistent obstruction of the pulmonary arterial bed, which can be treated by pulmonary thrombendarterectomy. METHOD AND RESULTS: This desobliteration of the pulmonary arteries is performed under conditions of deep hypothermia and circulatory arrest. Currently, perioperative mortality ranges between 10 and 15% and is mainly limited by persistent diffuse pulmonary artery disease independent of central obstruction. Postoperatively, pulmonary vascular resistance is normalized. Exercise tolerance of the patients is likewise improved. CONCLUSION: Thus, pulmonary thrombendarterectomy is an effective treatment for chronic thromboembolic pulmonary hypertension with results superior to those of lung transplantation.

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BACKGROUND: Lung volume reduction (LVR) surgery is an effective and organ-preserving treatment option for patients suffering from severe dyspnea due to endstage emphysema. METHOD: Resection of functionally inactive lung parenchyma reduces over-inflation and restores the elastic recoil of the lungs. Thus it results in improvement of dyspnea, mobility and pulmonary function. Patient selection is crucial. Of simliar importance is pulmonary rehabilitation, as well as sufficient expertise in the treatment of endstage chronic respiratory failure. RESULTS AND CONCLUSION: The in-hospital morbidity and mortality after LVR are acceptable (0 to 5%) and the good results seem to last at least 18 to 24 months. LVR can be offered to selected patients either as an alternative or as bridge to lung transplantation.

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BACKGROUND: The question whether patients suffering from end-stage emphysema who are candidates for lung transplantation should be treated with a single lung or with a double lung transplantation is still unanswered. METHODS: We reviewed 24 consecutive lung transplant procedures, comparing the results of 6 patients with an unilateral and 17 with a bilateral transplantation. PATIENTS AND RESULTS: After bilateral transplantation the patients showed a trend towards better blood gas exchange with shorter time on ventilator and intensive care compared patients after unilateral procedure. Three-year-actuarial survival was higher in the group after bilateral transplantation (83% versus 67%). There was a continuous improvement in pulmonary function in both groups during the first months after transplantation. Vital capacity and forced exspiratory ventilation therapies during the first second were significantly higher in the bilateral transplant group. CONCLUSION: Both unilateral and bilateral transplantation are feasible for patients with end-stage emphysema. Bilateral transplantation results in better pulmonary reserve capacity and faster rehabilitation.

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Theoretischer Hintergrund: Standardisierte psychologische Messinstrumente in der Psychotherapie für Personen mit Migrationshintergrund fehlen weitgehend. Fragestellungen: Die türkischsprachigen Übersetzungen des Fragebogens zur Analyse Motivationaler Schemata (FAMOS) und des Inkongruenzfragebogens (INK) wurden in die türkische Sprache übersetzt und psychometrisch überprüft. Methode: Insgesamt füllten 73 türkischsprachige Patienten und 230 gesunde türkischsprachige Personen mit Migrationshintergrund in der Schweiz FAMOS und INK aus. Ergebnisse: Die Skalen von FAMOS und INK zeigen gute Reliabilität und Validität. Patienten weisen stärker ausgeprägte Vermeidungsziele und Inkongruenzwerte als gesunde Personen auf. Schlussfolgerungen: Die türkischen Versionen von FAMOS und INK eignen sich sowohl für die klinisch-psychologische Forschung als auch für die Praxis.

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