EVALUATION OF THE FRONTAL-PLANE QRS-T ANGLE IN PREGNANCY

Objective: Our aim in this study was to evaluate changes the frontal QRS–T (fQRS-T) angle, which is an important indicator of repolarisation defects and arrhythmogenic predisposition, pregnant women relative non-pregnant between trimester groups. Material Methods: One hundred fifty-seven with no history cardiac or chronic disease 150 healthy as a control group were included study. PR, QRS, QT, corrected QT fQRS-T angles calculated manually. Subgroup analysis performed investigate effects on ECG 58 women, whose data all three trimesters could be accessed. Result: The mean age participants 31±7 years. heart rates 83±12 bpm 76±14 respectively (p<0.001), while fQRS–T measured 27.6°±17.7° 20.7°±6.6° (p<0.001). QRS-T angle also detected significantly decrease progression from first (34.4±15.4) second (26.5±14.8) third (23.3±20.3) (p=0.003). Gestational week had statistically significant negative correlation (r = −0.233; p=0.003). Conclusion: even if remained within normal range larger than those trimester.