Table 3.

Comparison of echocardiographic diastolic parameters at maximal exercise between the hyperthyroid and control groups

	Hyperthyroid	Control	P value
E/e′
Maximal exercise	7.30 ± 1.37	7.07 ± 1.25	0.536
Δ E/e′	−0.20 ± 1.53	−0.22 ± 1.23	0.330
TR velocity (m/s)
Maximal exercise	2.6 (2.39–2.88)	2.57 (2.46–2.70)	0.627
ΔTR velocity PAP (mmHg)	0.4 (0.33–0.55)	0.4 (0.3–0.57)	0.797
Maximal exercise	33.36 ± 7.66	31.77 ± 5.24	0.332
Δ PAP	7.60 ± 3.95	7.8 ± 3.21	0.808
IVRT (ms)
Maximal exercise	46.80 ± 9.25	54.73 ± 12.69	0.013
Δ IVRT	−16.60 ± 13.16	−19.53 ± 12.05	0.563
MPI
Maximal exercise	0.45 ± 0.08	0.45 ± 0.1	0.747
Δ MPI	−0.06 ± 0.09	−0.05 ± 0.08	0.831

IVRT, isovolumic relaxation time; MPI, myocardial performance index; PAP, pulmonary artery pressure; TR, tricuspid regurgitation.