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Biomedical subjects

G Lechner

Publications and source records attributed to G Lechner.

At least 91 records · Page 5Linked to original sources
PubMed1979

[Vascular embolisation in uncontrolled haemorrhages of the bladder caused by tumours and radiation (author's transl)].

Unilateral or bilateral embolisation of the internal iliac artery was effected in nine patients with incontrollable bleeding due to bladder tumour or invasion of a tumour into the bladder, or as a result of massive alterations of the urinary bladder caused by radiation exposure. A clearly superior haemostasis was achieved via bilateral embolisation (in 4 out of 5 patients) compared with unilateral embolisation (2 of 4 patients). Side effects were observed in two-thirds of the cases (elevated temperature, transient pareses and pain in the gluteal and leg regions).

Aged↗
PubMed1979

[The angiographic diagnosis and differential diagnosis of inflammatory disease of bones and soft tissues (a report concerning 40 cases) (author's transl)].

The angiographic appearances of inflammatory disease of bones and soft tissues was analysed in 40 patients. The angiographic findings in inflammation of bone (28 patients) differed greatly, from normal findings (14.2%), moderate angiographic changes corresponding to the severity of the inflammatory process (32.1%), marked changes in the arterial, capillary and venous beds (42.9%) and significant local staining with little peripheral reaction (10.7%). Soft tissue inflammation on the other hand showed increased vascularity in all cases. A typical angiogram was found in 50% of cases and shows the following characteristics: vascularity as compared with the surroundings is usually increased and may be extensive, far more so than is found surrounding vascular bone foci; the contrast staining is usually ill-defined and the veins in the late phase are increased in calibre. Early venous filling is common and should not be regarded as a sign of malignancy. In 17.5% of patients the angiogram simulated a tumour; in four patients (10%) a false positive diagnosis of tumour was made, in two (5%) a tumour could not be excluded and in one case a benign tumour was diagnosed because of localised staining. None of the angiograms which had been interpreted incorrectly showed typical pathological vessels, which are the most important tumour criteria.

Adolescent↗
PubMed1978

[Osteoid osteoma. (Plain films, angiography and scintigraphy in fifty patients) (author's transl)].

The radiological diagnosis and differential diagnosis of osteoid osteomas was considered in relation to a series of 50 histologically verified cases. In twenty, angiography had been performed and scintigraphy was carried out seven times. Various problems in the diagnosis of osteoid osteomas in relation to their localisation within bone (cortical, medullary, sub-periosteal, subarticular) and within the skeleton (near the hip, in the hand or foot, in the spine and in flat bones) are discussed.

Adolescent↗
PubMed1978

[The problem of angiographic diagnosis of giant cell tumors (author's transl)].

The value of angiography in the diagnosis of giant cell tumors of the bone was investigated in 12 patients listed in the Viennese bone tumor register. It could be shown that angiographic criteria of malignancy can frequently be found in grade II cell tumors. Therefore angiography does not seem to be helpful in differentiation and prediction of benign and malignant course of giant cell tumors.

Adolescent↗
PubMed1978

[Impairment of the skeletal growth of the hands after electrical burns in childhood].

Fourteen children with electrical burns involving 33 fingers were followed for a period of more than 8 years. Primary treatment was conservative in 17 fingers, of which 11 required surgery at a later date. Adequate function was restored in 12 fingers after completion of this treatment and persisted for 8 years and more. In 5 fingers substantial joint deformities developed. For 16 fingers surgery was required as primary treatment. Bone involvement was present in 10 of these. Secondary surgery proved to be necessary in 2 fingers, on one aseptic necrosis necessitated replacement by a bone graft. All of the 16 fingers showed good function in the period under review. There was no radiological evidence of deformities, but growth was substantially slower than normal. Apparently coverage of exposed bone with well vascularized tissue improved local blood flow so that damage other than that originally produced by the electrical burns was prevented.

Burns, Electric↗
PubMed1977

Problems of local recurrence in patients with Ewing's sarcoma.

With the increasing longevity of patients with Ewing's sarcoma not only the long term tissue effects of local treatment are important, but also the management of patients who develop local recurrent disease. Of our 42 patients with Ewing's sarcoma, 33 were treated by irradiation and 7 of them developed a recurrence. The reasons of failure to control the primary tumor are analysed in the light of present experience and guidelines for the management of the recurrence are discussed. With optimal combination therapy it is hoped, that a proportion of patients with recurrent disease can be salvaged.

Adolescent↗
PubMed1976

[Late results of the Noble operation. Clinical and radiological follow-up examination].

The results of 58 Noble operations performed during the period between 1964 and 1973 are reported. A partial operation was carried out in 9 cases. In 4 cases there were fatal complications due to technical errors such as too long a terminal ilial loop and direct suture to the intestine. Two cases of late ileus were observed after 2 and 6 months respectively following a partial plication. Follow-up examination at an average of 4 years after Noble operation showed that 26 patients were free of complaint. The Noble operation is best suited for cases with chronic recurrent adhesion ileus when a permanent folding of the small intestine is necessary. For other indications, the newer alternative procedures. (Childs and Phillips and Reiffersceid and Phillip's small intestine splinting) should be used.

Humans↗
PubMed1976

[A clinical-radiological investigation concerning the accuracy of diatrizoate (Gastrografin) in the demonstration of anastomosis dehiscence and perforation of the gastro-intestinal tract (author's transl)].

A Gastrografin test is described for diagnosing perforations and dehiscence of anastomoses in the gastro-intestinal tract by carrying out a simple urine analysis. False positive and false negative results can be avoided by obtaining radiographs of urine samples under standard conditions. The accuracy of the method was checked in 97 patients by comparing the results of the urine analysis with radiographic examinations and with the clinical course. From this, it appears that the test is reliable, simple and capable of being used anywhere. The test is therefore recommended a) where there is a lack of radiographic facilities, b) for immobile patients, c) where there is clinical suspicion of a perforation or dehiscence of an anastomosis in the absence of radiographic findings and d) in individual cases where the radiographic changes are positive.

Abdomen, Acute↗
PubMed1975

[Tracheal dimensions and shape in healthy subjects and in patients with chronic obstructive lung disease (author's transl)].

Normal data for tracheal shape and dimensions were obtained by the investigation of a group of 90 men and women aged 50 years or over with normal pulmonary function. Significant differences were found between the sexes in regard to tracheal shape and cross sectional area. Another group of 90 men and women with pulmonary function data indicative of severe chronic obstructive lung disease was also investigated and the tracheal findings were compared with those of the control group. It was demonstrated that patients with chronic cough and chronic bronchitis exhibit a tendency to intrathoracic coronal narrowing and sagittal widening i.c. "saber-sheath" deformity. Mechanisms responsible for this alteration in tracheal shape are discussed. No definite correlation was demonstrable between age, total lung capacity, residual volume and tracheal shape. The relatively unknown, but fairly characteristic radiological appearance of the "saber-sheath" trachea is described and the importance of routine X-ray of the trachea in patients with chronic obstructive lung disease is stressed.

Age Factors↗