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Biomedical subjects

O Ennemoser

Publications and source records attributed to O Ennemoser.

7 recordsLinked to original sources
PubMed1992

Increased radon concentrations in classrooms used for pottery workshops.

In a pilot study of nine schools the radon (Rn) concentrations were measured systematically. The mean radon concentrations in the classrooms on the ground-floor and on higher floors was 52 Bq/m3, which is equivalent to the mean values in Central Europe. Several of the basement rooms used for handicraft lessons had significantly increased Rn levels with a mean concentration of 617 Bq/m3. In all other parts of the basement Rn levels were clearly lower with a mean concentration of 136 Bq/m3. In the rooms used for handicraft lessons numerous articles of pottery were on display. After removing these the Rn in air concentration was reduced to a mean value of 83 Bq/m3.

Air Pollution, Indoor↗
PubMed1992

Peyronie's disease: MR findings in 28 patients.

Induratio penis plastica (Peyronie's disease) is a chronic fibrotic process involving the penis. Proper treatment of the disease requires assessment of the degree of inflammation preceding or accompanying the fibrous Peyronie's plaques. Owing to its high tissue contrast and its multiplanar capability, MR imaging offers excellent visualization of penile anatomy. To determine the usefulness of MR imaging in the diagnosis and staging of Peyronie's disease, we used MR imaging with a surface coil to examine 28 consecutive patients with clinical evidence of the disease. Eighteen patients had contrast-enhanced MR imaging with gadopentetate dimeglumine. In seven patients who subsequently had surgery or biopsy, MR findings were correlated with histopathologic findings. On unenhanced images, fibrous plaques were shown in 20 patients. Enhanced MR images showed focal contrast enhancement around or within the plaques in seven patients. Images in three patients with plaques showed no enhancement. Images in five patients showed focal areas of contrast enhancement without evidence of plaques. Histologic studies demonstrated that the degree of contrast enhancement correlated with the extent of inflammatory cell infiltration. In two patients with unenhancing plaques on MR, histology confirmed the absence of inflammation. Our results suggest that MR imaging not only depicts the localization and extent of fibrous plaques in patients with Peyronie's disease but also reveals the presence of inflammation. This makes MR imaging the technique of choice for planning therapy and for evaluating the response to conservative treatment.

Adult↗
PubMed1992

[Anatomy of the posterior urethra].

The short section of the urethra that passes through the urogenital diaphragm is termed the membranous urethra. It is accompanied by several vessels and nerve fibers. In surgery on the membranous urethra the perineal body is of crucial importance, and precise knowledge of the course of the urethra through the pelvic floor is essential. Furthermore, the relationship between the membranous urethra and its accompanying structures is of great importance. These include the branches of the internal pudendal artery, the prostatic venous plexus and the cavernous nerves coursing ventrally from the pelvic plexus. The nerves supplying the membranous urethra were studied in fetuses with the help of a magnifying lens. The results of the dissections are documented by histological sections, photographs and paintings.

Aged↗
PubMed1992

[Urethral rupture--primary repair and reconstruction].

Whether the posterior urethra can successfully be reconstructed depends mainly on the primary care, especially in the case of strictures secondary to trauma. Prior to surgery, primary care of the lesion is mandatory, including open suprapubic fistula, drainage of the cavum retii and of the perineal space, repositioning of the urethra and immediate stabilization of the pelvic ring by means of elastic procedures. In a second step, between 1978 and 1990 we performed bulbo-prostatic surgery in 27 patients with traumatic rupture of the posterior urethra. Based on extensive anatomic be studies on the relationship of the membranous urethra to the pelvic floor and to the arteries, veins and nerves, an operative approach via the perineal body was developed. Of 18 patients followed up, only 4 had flow rates of less than 15 ml/s. Retrograde urethrograms and micturition cystograms showed good results.

Adolescent↗
PubMed1990

[Atraumatic measurement of intracranial pressure].

This paper presents a new method for measuring intracranial pressure (ICP), which is completely non-invasive by using an isolated "headband electrode". The head itself - as a dielectric--forms a capacitor. A high frequency alternating voltage field is applied to this system (1-1.5 MHz) whereby a measuring signal is obtained which depends on the dielectric properties of the head. These, in turn, primarily depend on the filling status of the intracranial space. In addition, a pulse wave can be plotted as a result of cardiac and respiratory cycles. This combined information permits the calculation of actual ICP values with the help of a simple Basic PC programme. The measuring system was tested in 20 patients with intracranial space-occupying lesions. Their ICP values were known from invasive measurement and the obtained correlation was R = 0.983.

Adolescent↗