The Association between Myocardial Iron Load and Ventricular Repolarization Parameters in Asymptomatic Beta-Thalassemia Patients

Table 3

Electrocardiographic findings of patients with β-TM according to cardiac T2^∗ scores.

ECG parameters	T2^∗<20 msec 𝑛=12	T2^∗≥20 msec 𝑛=10	P value
QT (msec)	378±28	387±24	0.62
QTc (msec)	468±35	478±38	0.48
QTp (msec)	293±25	291±25	0.84
QTd (msec)	38±11	40±17	0.46
cQTd (msec)	48±15	51±17	0.59
𝑇𝑝−𝑇𝑒 (msec)	85±15	87±13	0.57
(𝑇𝑝−𝑇𝑒)𝑑 (msec)	47±17	47±16	0.94
𝑇𝑝−𝑇𝑒/QT ratio	0.22±0.03	0.24±0.03	0.12
QRS duration (msec)	101±19	99±15	0.86
HR (bpm)	89±11	92±17	0.63