title: Relationship Between Tei Index and PEP-Derived Myocardial Performance Index in Sinus Rhythm.
abstract: The goal of this study was to evaluate the preejection time (PEP)-derived myocardial performance index (MPI) in hypertensive (HT) patients with sinus rhythm and its relationship to the classic Tei index. One hundred five patients were enrolled in the study (65 HT and 40 control subjects). The mean age of all patients was 50.5 ± 15 years and 60% were female. Echocardiography was performed on all patients. MPI was measured with the classic Tei method (MPI-Tei index) and the PEP-derived MPI method by using tissue Doppler echocardiography. Although the MPI-Tei index is defined as the ratio of isovolumetric contraction time (IVCT) along with isovolumetric relaxation time (IVRT) to ejection time (ET), PEP-derived MPI is defined as the ratio of PEP and IVRT to ET. We compared echocardiographic data between the HT group and the control group. MPI-Tei index and the PEP-derived MPI values were higher in the HT group compared with controls (0.52 ± 0.10 vs 0.39 ± 0.07, P < 0.001, and 0.51 ± 0.09 vs 0.39 ± 0.07). PEP-derived MPI was strongly correlated with the MPI-Tei index (r = 0.945, P < 0.001). Our study determined that the PEP-derived MPI might be used in the evaluation of left ventricular function in patients with HT, similar to the classic MPI-Tei index.
authors.affiliation: From the Department of Cardiology (FB), Sanliurfa Mehmet Akif Inan Training and Research Hospital, Sanliurfa; Department of Cardiology (CB), Duzce Ataturk State Hospital; and Department of Cardiology (IE, YT), Duzce University Faculty of Medicine Hospital, Duzce, Turkey.
authors.forename: Feyzullah
authors.initials: F
authors.lastname: Besli
authors.forename: Cengiz
authors.initials: C
authors.lastname: Basar
authors.forename: Ismail
authors.initials: I
authors.lastname: Ekinozu
authors.forename: Yasin
authors.initials: Y
authors.lastname: Turker
mesh_terms: D000328:Adult; D000368:Aged; D004452:Echocardiography; D004562:Electrocardiography; D005260:Female; D006305:Health Status Indicators; D006801:Humans; D006973:Hypertension / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D016277:Ventricular Function, Left / Q000502:physiology*