Evaluation of preoperative blood tests for predicting deep vein thrombosis after total hip replacement.

Determinations of the total calcium content and aggregability of the platelets as well as tests of coagulation and fibrinolysis were carried out on 93 patients before undergoing total hip replacement. All patients received low dose heparin, solely or combined with dihydroergotamine. Twenty-six patients developed deep vein thrombosis (DVT) detected by the labelled fibrinogen uptake test and confirmed by ascending phlebography.

[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).

[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.