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Biomedical subjects

I Giegler

Publications and source records attributed to I Giegler.

At least 19 recordsLinked to original sources
PubMed1978

[Comparison of the values of automatic ECG analysis according to the Smith and the Pipberger diagnostic programs by means of a serial study in a large industry].

It could be shown that an ECG-screening could be integrated into the routine work of a factory outpatient department. As a result of the automatical analysis of the ECG we got an exact knowledge of the efficiency of Smith's and Pipberger's diagnostic programmes. The suitability of the two programmes for screening examinations resulted from the 91% and 97% certain separation of normal and pathological findings and the small proportion of falsely negative results (Smith, Pipberger). Concerning the exact differentiation of pathological ECG the frequency of recognition of Pipberger's programme still surpassed that one of Smith's programme. However, the two programmes show a diagnostic security which lies above the visual diagnosing. The establishment of findings performed off line per week ascertained a rapid disposal of results. In comparison to former examinations newly detected cases could be established only in a small percentage. The importance for health polities of such examinations results from the necessity of the prophylaxis of cardio-vascular diseases, the numbers of morbidity and mortality of which are permanently increasing.

Cardiovascular Diseases↗
PubMed1977

[1st experience on the use of an automatic ECG analysis in a large industrial plant in Erfurt].

By means of a device system consisting of constituents of the SW-production and own developmental works in the factory Kombinat VEB Umformtechnik (combinate nationally owned enterprise transformation technology) for the first time ECG serial examinations were performed with the help of the mechanical ECG-analysis. The corrected orthogonal system of Frank with 3 leads served as deviation system. The ECG-registration was independently performed by function nurses. 1,720 male and female workers of this factory at the age of 21 to 59 years served as test persons. The ECG-registration lasted 20 sec., the whole time of examination including the changing of clothes and the way from the working place to the examination room did not last more than 4 to 8 min. As diagnosis programme served that one developed by Pipberger. The mechanical analysis resulted in 74.4% in a normal course of the electrocardiographic current curve. Among the pathological or abnormal ECGs (25.6%) prevailed the vegetative-functional heart diseases with 92%. Then followed the chronic ischaemic heart diseases with 7.9% and the hypertension with 5.1%. Diseases of the heart and the blood circulation established for the first time referred to 8.9%. Of them 5% needed control and 3.9% needed therapy.

Electrocardiography↗
PubMed1977

[Experience in the use of Smith's ECG evaluation program].

After the experiences with the use of the programme of Pipberger concerning the automatised ECG-analysis in clinic, outpatient department and factory public health, which were made at the Medical Academy Erfurt during the last years, at this time comparative examinations with the ECG-analysis programme of Smith were performed. The intake of data (3 orthogonal leads) is done by means of a data establishing unit developed by us. For the analog-digital-changing, the pretreatment of data and the transmission of the ECG-data on the digital magnet tape a process-calculator TPA-i is used. The analysis is performed by the computer Robotron 21. The evaluation of the results shows that, when a great number of patients is examined, normal curves are correctly estimated at 100%. The recognition rate of pathological curves has with 79.5% about the same size as the visual judgment. The deficiencies of the diagnostic programme of Smith must be essentially found in the relatively high proportion of falsely negative findings, the insufficient differentiation of the changes of the chamber variation, in the sometimes incorrect formation, why the classification of the curves in individual groups was performed. On account of the certain centage of falsely negative ones the programme is well recognition of normal findings and the tolerable pernotion of the diagnosis and the sometimes lacking insuited for screening examinations.

Diagnosis, Computer-Assisted↗
PubMed1975

[Diagnosis of acute myocardial infarct in corrected orthogonal electrocardiogram].

In 450 patients of a guarded ward for coronary diseases apart from the 15 conventional ECG-leads three corrected orthogonal leads after Frank were registered. In 141 cases an infarction could be confirmed. Using an observation of the course a recognition of the infarctions was always possible in the conventional as well as the corrected orthogonal ECG. In not penetrating infarctions a very careful analysis of the electrocardiograms and of the controls of the course is necessary, since the changes of the final ventricular deflection in the corrected orthogonal deviation system are less expressed than in the conventional leads. Thus, the corrected orthogonal electrocardiogram seems to be suitable for screening investigations concerning the recognition of a myocardial infarction.

Acute Disease↗
PubMed1975

[The correlation of clinical-electrocardiographic criteria with pathologic-anatomical findings in myocardial infarct].

Electrocardiographic signs of myocardial infarction obtained in 591 patients by the corrected orthogonal lead system according to Frank were compared with corresponding results of autopsy-proven material and corrected. By the corrected orthogonal lead system myocardial infarction could be recognized in 89% of the autopsy-proven cases. Moreover, electrocardiographic alterations which suggest accompanying mono- or biventricular hypertrophy were demonstrated.

Adult↗