Assessment of myocardial velocities and global function of the left ventricle in asymptomatic patients with moderate-to-severe chronic aortic regurgitation: A tissue doppler echocardiographic study

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dc.contributor.authorSokmen, Gulizar
dc.contributor.authorSokmen, Abdullah
dc.contributor.authorDuzenli, Akif
dc.contributor.authorSoylu, Ahmet
dc.contributor.authorOzdemir, Kurtulus
dc.date.accessioned2020-03-26T17:17:01Z
dc.date.available2020-03-26T17:17:01Z
dc.date.issued2007
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractObjective: Asymptomatic patients with chronic aortic regurgitation (AR) have an excellent prognosis in the presence of preserved systolic function. It is a challenge to recognize patients with subclinical myocardial dysfunction in AR. Conventional parameters still have many drawbacks in predicting early left ventricular (LV) dysfunction. Pulsed-wave tissue Doppler imaging (PW-TDI) is a useful noninvasive technique for evaluating global and regional LV systolic function. In this study, we aimed to assess clinical usefulness of TDI in predicting early disturbance of myocardial contractility in asymptomatic patients with significant AR and preserved left ventricular systolic function. Methods and the Results: Echocardiograms were obtained in 32 AR patients and 33 healthy subjects. In addition to conventional parameters, regional myocardial velocities, isovolumetric contraction time (mICT), isovolumetric relaxation time (mIRT), and ejection time (mET) of left ventricle were obtained by TDI and modified LV myocardial performance index (MPI) was calculated. In AR, peak systolic velocity (Sm) of septal and anterior mitral annulus, and mean Sm was significantly lower, and LVMPI was significantly higher compared to control group. Conclusion: The data obtained by TDI show that LV MPI is lengthened, and systolic myocardial velocities are shortened in patients having chronic AR with normal LV systolic function according to conventional echocardiographic parameters. This suggests that LV long-axis contraction and global LV performance are preciously and noticeably decreased in patients with moderate-to-severe chronic AR despite normal LV ejection fraction.en_US
dc.identifier.doi10.1111/j.1540-8175.2007.00438.xen_US
dc.identifier.endpage614en_US
dc.identifier.issn0742-2822en_US
dc.identifier.issn1540-8175en_US
dc.identifier.issue6en_US
dc.identifier.pmid17584200en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage609en_US
dc.identifier.urihttps://dx.doi.org/10.1111/j.1540-8175.2007.00438.x
dc.identifier.urihttps://hdl.handle.net/20.500.12395/21228
dc.identifier.volume24en_US
dc.identifier.wosWOS:000247398500007en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherWILEYen_US
dc.relation.ispartofECHOCARDIOGRAPHY-A JOURNAL OF CARDIOVASCULAR ULTRASOUND AND ALLIED TECHNIQUESen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectaortic regurgitationen_US
dc.subjecttissue Doppler imagingen_US
dc.subjectmyocardial performance indexen_US
dc.titleAssessment of myocardial velocities and global function of the left ventricle in asymptomatic patients with moderate-to-severe chronic aortic regurgitation: A tissue doppler echocardiographic studyen_US
dc.typeArticleen_US

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