Avtor/Urednik		Štajer, Dušan
Naslov		Povezave med mehanično in električno aktivnostjo srca pri bolnikih s srčnim infarktom
Prevedeni naslov		Relations between the mechanical and electric activity of the heart in patients with acute myocardial infarction
Tip		monografija
Kraj izdaje		Ljubljana
Založnik		Medicinska fakulteta
Leto izdaje		1996
Obseg		str. 115
Jezik		slo
Abstrakt		In patients with acute myocardial infarction (AMI), we found a statistically significant correlation between the QTc interval duration and echocardiographically determined left ventricular systolic dysfunction. QTc internal duration was shorter in patients with reperfusion after thrombolytic treatment. The measurement of QT interval duration should assess the total duration of electrical systole of the heart as completely as possible. We evaluated usefulness of 12 standard and 3 Frank leads for this purpose. In the majority of the patients, standard I, II, V2, V3 and the lead with the tallest T wave, as well as Frank Y and Z leads contained the longest QT. In patients with presumably successful thrombolytic treatment by non-invasive criteria, QTc interval duration decreases during the first 4 days of AMI, whereas in patients with presumably unsuccessful thrombolysis QTc interval duration increases in that period. QTc interval changes gradually over several days, and the change is small during the first 24 hours following AMI. Therefore, QTc interval duration change can only be used for a late assessment of success of thrombolytic therapy. In patients with successful thrombolytic treatment the incidence of late ventricular potentials (LVP) decreased more than in patients with unsuccessful thrombolysis during the first 5 to 10 days. There was no significant correlation between the incidence of LVP and left ventricular ejection fraction determined by radionuclide ventriculography. In patients with 4 days old AMI, incidence of LVP was related to echocardiographically determined extent of left ventricular systolic dysfunction, whereas thrombolytic treatment decreased the incidence of LVP. (Abstract truncated at 2000 characetrs).
Deskriptorji		MYOCARDIAL INFARCTION ELECTROCARDIOGRAPHY ECHOCARDIOGRAPHY VENTRICULAR DYSFUNCTION, LEFT ACUTE DISEASE VENTRICULAR FUNCTION, LEFT SYSTOLE THROMBOLYTIC THERAPY MYOCARDIAL REPERFUSION HEART STROKE VOLUME