Evaluation of left ventricular function in patients with hyperthyroid by strain rate imaging / 中国医师进修杂志

ABSTRACT

Objective To explore the clinical value of strain rate imaging(SRI) in assessing the left ventrlcular function in patients with hyperthyroid.Methods The 65 patients with hyperthyroid were divided into two groups by clinical symptomssimple hyperthyroid (34 cases) and hyperthyroid heart disease(31 cases);and they were tested using ultrasonic cardiogram.Systole strain rate (SRs),early diastolic strain rate (SRe),late diastolic strain rate (SRa) at left ventricuhr segments of two-chamber,three-chamber and fourchamber views were meagured using SRI,and compared with that in healthy subjects (35 cases).Results Compared with that in healthy subjects,SRs in hyperthyroid heart disease was obviously lower[(1.39±0.24)s-1 vs (1.56±0.27) s-1,P＜0.05],SRe and SRa was significantly lower in simple hyperthyroid and hyperthyroid heart disease[(1.72±0.26),(1.51±0.28)s-1、vs (1.96±0.31)s-1 and (1.59±0.30),(1.46±0.27)s-1 vs (1.73±0.33)s-1,P＜0.05].Conclusions Left ventrieular function in early patients with hyperthyroid is decreased;and the change of systolic function is later than diastolic function.SRI is helpful in assessing the early left ventricular systolic and diastolic dysfunction in patients with hyperthyroid.