Bpm: beat per minute, SBP: Systolic blood pressure, DBP: Diastolic blood
pressure
During performing stress echocardiography, all subjects completed stress
test in view of reaching at least 90% of maximum predicted heart rate,
and no one had developed evidence of ischemia in echocardiography or
ECG. About 7 patients (26.9%) reported mild dyspnea at peak stress that
was not restricting for exercise and no one had typical chest pain and
dizziness. No significant ST-T change and arrhythmia were induced.
For evaluation of diastolic function reserve, according to the mentioned
criteria in previous section, no one had developed criteria of diastolic
dysfunction in stress echocardiography and mean E/e’ ratio and TR
velocity were 7.25 ± 1.4 and 2.6(2.39-2.88), respectively. There was
also no significant difference between the two groups. (Table-3)
Table -3. Comparison of echocardiographic diastolic parameters at
maximal exercise between the hyperthyroid and control groups.