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Biomedical subjects

J Polster

Publications and source records attributed to J Polster.

At least 37 records · Page 2Linked to original sources
PubMed1982

The reliability of echocardiography in preoperative diagnostics of bacterial endocarditis.

During a period of 4 years, 32 patients with acute bacterial endocarditis were admitted for cardiac surgical intervention. Uncontrollable infections, heart failure or embolism presented indications for the operation. In all cases, a preoperative, invasive angiography diagnostic was abandoned. The indication for surgical intervention was based on clinical criteria as well as the findings of one-dimensional or two-dimensional echocardiography. In 26 out of 32 patients who underwent surgical intervention, the preoperative echocardiography findings were in agreement with the intraoperative findings. In the remaining 6 patients, the preoperative echocardiographic findings were incomplete; in 2 cases particularly, it is important to note that an aneurysm of the ascending aorta had been missed. In view of these findings and results, we think that in acute bacterial endocarditis, the combined use of one- and two-dimensional echocardiography together with clinical findings can replace preoperative hemodynamic diagnostics.

Adult↗
PubMed1982

Transoesophageal cross-sectional echocardiography with a phased array transducer system. Technique and initial clinical results.

Cardiac imaging by transthoracic two dimensional echocardiography is impaired in patients with chronic lung disease, those with obesity, and those with abnormal chest wall configuration. In order to overcome these limitations, a miniature phased array ultrasound transducer fitted to the tip of a commercially available gastroscope was developed. Transducer position and orientation can be adjusted completely by external control of vertical displacement inside the oesophagus, rotation, and angulation. Introduction and operation of the transducer gastroscope system are usually well tolerated by the patients, since no mechanical vibrations are generated and there is no need for an oil bag to secure oesophageal wall contact. Cardiac images of high quality are obtained even from structures and regions that are poorly or not at all imaged from external transducer positions.

Adult↗
PubMed1982

[Echocardiographic detection of tricuspid insufficiency in carcinoid heart syndrome - case report].

This case report describes the echocardiographic documentation of a 60 year old patient with tricuspid regurgitation due to carcinoid heart disease. The carcinoid syndrome was histologically proven by liver metastases and by an increased 5-hydroxytryptamin secretion. Tricuspid involvement was echocardiographically documented by immobile, thickened leaflets. Diffuse endocardial thickening of the right chamber and pulmonary valve involvement was absent.

Carcinoid Heart Disease↗
PubMed1980

[Preoperative halo-gravity traction in scoliosis (author's transl)].

Clinical experience gained with halo-gravity traction since 1974 is described. The advantage of halo-gravity traction as compared to other types of traction treatment is discussed. Measurements are described, which serve to monitor the treatment and which can be used to predict the final result of the preoperative traction treatment.

Adolescent↗
PubMed1976

[Measurements of the tensile force in the halo-pelvic apparatus and in the halo-Milwaukee brace (author' transl)].

A measuring device for static and dynamic recordings of the tensile force in the halo-pelvic apparatus and in the halo-Milwaukee brace was developed. The results present a survey of the tensil forces being effective during the preoperative traction in dependence on the extension distance and the duration of the treatment. The considerable variations of the tensile force, especially the high peak values, which were recorded during the normal day-to-day routine of the patients in the ward room, lead to the conclusion, that halo-gravity or halo-femoral traction is to be preferred to traction by the halo-pelvic apparatus or by the halo-Milwaukee-brace.

Adolescent↗