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Biomedical subjects

E Zeh

Publications and source records attributed to E Zeh.

18 recordsLinked to original sources
PubMed1987

[From phonocardiography to phonoanalysis].

We report on a new system for the examination and presentation of heart sounds, the phonoanalysis (PHA). It gives automatically a complete, objective physically founded picture of heart sounds and murmurs by registering the frequency spectrum graphically, as well as presenting in a numeric format, as a whole and as a function of time; in addition, the usual phonocardiographic and electrocardiographic leads may be obtained. A further function is to measure--probably for the first time--quantitatively the "roughness" of heart murmurs. This factor is also essential for the quality of murmurs and independent of the pitch. Therefore, the quantitative assessment of roughness has been proposed as an essential part of the physically founded description of heart murmurs in the auscultation, in addition to the determination of the dominating frequency (pitch). The term 'roughness' should not been confined to the extremely rough low-pitched heart murmurs e.g. in typical aortic stenosis. The PHA gives a better insight into the hemodynamic basis of heart murmurs and discloses properties of murmurs not recognized by auscultation and phonocardiography. The PHA can also be used for the examination of vascular, lung, bronchial and abdominal murmurs and also in connection with a stethoscope using an airborne sound microphone.

Computers↗
PubMed1978

[The manual extrathoracal stimulation of the heart. Technique and effect of the precordial thump (author's transl)].

The findings of the manual extrathoracal stimulation of the heart (precordial thump) among 50 persons, healthy individuals and patients with pacemakers, are reported. By all persons it was possible either to cause "extrasystoles" through single blows or to maintain a continuous heart action through a rhythmic stimulation up to 6 minutes ("Temporary stimulation"). Through a manual overstimulation the basic rhythm could be blocked out. -To induce a depolarisation through a thump the locally induced pressure or tension on the heart muscle is of primary importance. For this to occur, the precordial chest thump must develop a rise in pressure of at least 15 to 20 mm Hg in the right ventricle. The location at which the precordial thump can best be effective is on the left border of the sternum in the lower third. That is the region where the heart (right ventricle) is nearest to the chest wall. -Subjective or objective side effects were not observed during our investigations and--in particular--there were no ectopic rhythm or conduction disturbance. -The precordial thump is of importance not only as "initial blow" at the beginning of cardiac resuscitation but also in form of the temporary stimulation in various causes of asystole. It was demonstrated that the manual stimulation of the heart has the same effect as the electrical stimulation and can be used by certain patients by themselves.

Adult↗
PubMed1977

Total hydroxyproline in urine of 4 to 6 year-old children--an investigation on its relationship to growth and nutrition.

We analysed over a period of 30-32 days the daily total hydroxyproline and creatinine excretine in urine from 9 healthy, normally fed 4 to 6 year-old children (2 girls, 7 boys). The average urinary hydroxyproline excretion was 45.6 mg/24 hr, with a coefficient of variation of 25.6%. Urinary hydroxyproline for individual children showed distinct differences from day to day, which were independent of urine volume. There were significant differences between the mean values for urine hydroxyproline in individual children, which were independent of age. The average creatinine in urine was 346/24 hr with a coefficient of variation of 17.7%. The hydroxyproline-index did not define the nutritional state of these normally developed children on a normal diet. Dietary hydroxyproline contributed 7.4% to the total urinary hydroxyproline in our investigation. There was a close correlation between urine hydroxyproline excretion and growth velocity in each child.

Child↗
PubMed1976

[Fatal diphtheria in a 26-year-old man. Repetitorium; Known and current aspects of diphtheria].

This paper reports on a 26 year old male who died of toxic diphtheria with all typical features such as: Bullneck, paralysis of the soft palate, renal failure accompanied by proteinuria and--most notably--myocarditis (very typical microscopically) with circulatory disturbances and finally left and right hand failure. The myocarditis hat caused increases of SGOT, SGPT, CPK, LDH and HBDH to values not seen before by us in the course of myocarditis. The patient had been immunized against diphtheria as a child. Initial treatment consisted of the application of ampicillin which caused rapid regression of the local symptoms in the pharyngeal region including the bullneck-symptom; of course the course of intoxication was not influenced, even after the patient had been admitted to the hospital, the disease correctly diagnosed and antitoxin given three days before death.

Adult↗