Abstract

Aim: Clinical and laboratory parameters that are believed to be related with the complications of acute coronary syndromes (ACS) are defined. In our study, the significance of QT dispersion, an electrocardiographic parameter, in predicting the high risk ACS patients was evaluated. Methods: The daily complications and QT dispersions of the patients who admitted within first 12 hours of chest pain and who did not have previous history of ACS were followed. The patients did not have any other systemic disease that might cause QT dispersion. The comparison between the groups was made by using Mann-Whitney-U test and Kruskal Wallis test. Results: Mean QT dispersion was found statistically fonger in complicated patients than the non-complicated group (p<0.05). In both Q- wave and non Q wave myocardial infaretion groups, the complicated supgroups with recurrent ischemic pain and ventricufar arrythmias had significantly fonger mean QT dispersion uafues than the non-compficated groups (p<0.001). The patients with unstabfe angina and experienced ventricufar arrythmias had significantfy fonger QT dispersion than the non-compficated groups (p<0.001). Conclusion: QT dispersion might be accepted as a valuable marker in predicting high risk ACS patients especially for ventricufar arrythmias and recurrent ischemic pain.