Assessment of left ventricular synchronicity in patients with metabolic syndrome by tissue Doppler imaging / 中华超声影像学杂志

ABSTRACT

Objective To assess left ventricular synchronicity in patients with metabolic syndrome(MS)by tissue Doppler imaging.Methods Twenty-two patients with MS and left ventricular hypertrophy(LVH)(MS-LVH group),69 patients with MS and non-LVH(MS-NLVH group)and 33 healthy subjects(control group) were included.Left ventricular(LV)systolic and diastolic synchronicity were determined by measuring the maximal difference in time to peak myocardial systolic contraction(Ts-diff)and time to peak myocardial early diastolic relaxation(Te-diff),and the standard deviation of time to peak myocardial systolic contraction(Ts-SD)and early diastolic relaxation(Te-SD)with 6 basal and 6 middle LV segments.Results Compared with control group,patients with MS in MS-NLVH and MS-LVH group showed significantly prolonged Ts-diff,Ts-SD,Te-diff and Te-SD.Furthermore,Te-diff and Te-SD were much more prolonged in MS-LVH group than in MS-NLVH group.Conclusions Patients with MS have impaired L V systolic and diastolic synchronicity.LVH impacts the LV diastolic synchronicity much more obviously than systolic synchronicity in the patients with MS and LVH.