Facilitation of DDD follow-up using the DDT mode.

To facilitate follow-up, modern dual chamber pacemakers provide a variety of diagnostic features like ECG interpretation channels and intracardiac electrograms. For evaluation of the sensing performance at rest and during exercise, for assessment of the presence of crosstalk, and for measurement of the retrograde conduction time, dual chamber triggered pacing, particularly the DDT mode, can be used alternatively or additionally in pacemakers equipped with this option. In contrast to ECG interpretation channels, ECG documentation is not required for evaluation of the sensing performance, because the triggered pulses serving as markers for sense events can also be seen on the monitor.

[Assessment of prognosis in acute myocardial infarct after reaching the maximum enzyme activity].

A new method is described for estimation of the prognosis of acute myocardial infarction progress due to temporary decrease in the isoenzymes, i.e. malic dehydrogenase (MDH), aspartate aminotransferase (ASAT), lactic dehydrogenase (LDH), and the decrease in the creatine kinase (CK).

[Prognosis assessment of acute myocardial infarction on the basis of temporal changes of isoenzyme activities].

A new method is described for determining the prognosis of acute myocardial infarction (AMI) progress due to temporal increase in the isoenzyme, i.e. malic dehydrogenase (MDH), aspartate aminotransferase (ASAT), lactic dehydrogenase (LDH), and the increase in the creatine kinase (CK).