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      Use of Tissue Doppler to Assess Right Ventricle Function in Hemodialysis Patients


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          Aims: Although there are plenty of data about the differences in left ventricular tissue Doppler (TD) velocities by preload reduction, only a few studies regarding right ventricular function are found in the literature. We investigated the effect of intravascular volume reduction on right ventricular function by ultrafiltration in dialysis patients. Methods: 27 end-stage renal failure patients who were hypervolemic and undergoing hemodialysis were included in the study. TD studies of the right ventricle were performed before and 1 h after dialysis. These data were compared. Results: The mean age of the patients was 41 ± 15 years and mean volume of ultrafiltration was 3.8 ± 1.8 liters. Systolic, early and late diastolic lateral annular TD velocities before dialysis were 0.109 ± 0.029, 0.088 ± 0.039, 0.111 ± 0.039 m/s, and after dialysis were 0.099 ± 0.028, 0.078 ± 0.036, 0.106 ± 0.037 m/s, respectively (p = 0.216, p = 0.112, p = 0.350). Myocardial early diastolic velocity decreased significantly (p = 0.049) but systolic and late diastolic velocities did not change significantly (p = 0.579, p = 0.146). Conclusion: Right ventricular systolic and diastolic velocities detected by TD were not or only minimally affected by preload reduction in hemodialysis patients and the TD early/late ratio is the most valuable variable that can predict right ventricular diastolic function. The right ventricular systolic and early diastolic TD velocities were positively correlated with left ventricle ejection fraction.

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          Most cited references15

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          Assessment of right ventricular function using two-dimensional echocardiography.

          With the use of two-dimensional echocardiography (2DE), we analyzed apical and subcostal four-chamber views for evaluation of right ventricular (RV) function in 30 individuals as compared to RV ejection fraction (RVEF) obtained by radionuclide angiography. In addition to previously reported parameters of changes in areas and chords, a new simple measurement of tricuspid annular excursion was correlated with RVEF. A close correlation was noted between tricuspid annular plane systolic excursion (TAPSE) and RVEF (r = 0.92). The RV end-diastolic area (RVEDA) and percentage of systolic change in area in the apical four-chamber view also showed close correlation with RVEF (r = -0.76 and 0.81); however, the entire RV endocardium could only be traced in about half of our patients. The end-diastolic transverse chord length and the percentage of systolic change in chord length in the apical view showed a poor correlation with RVEF. The correlation between RVEF and both areas and chords measured in the subcostal view was poor. It is concluded that the measurement of TAPSE offers a simple echocardiographic parameter which reflects RVEF. This measurement is not dependent on either geometric assumptions or traceable endocardial edges. When the endocardial outlines could be traced, the apical four-chamber view was superior to the subcostal view in assessment of RV function.
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            Characteristics of mitral and tricuspid annular velocities determined by pulsed wave Doppler tissue imaging in healthy subjects.

            Assessment of myocardial velocities by Doppler tissue imaging is gaining in importance. However, generally accepted reference values are still missing. In this study we examined 62 consecutive healthy subjects (mean age 46, range 22-82 years) by pulsed wave Doppler tissue imaging to characterize the systolic and diastolic velocity profiles of the left and right ventricles. The subjects were divided into 3 different age-groups: group I, younger than 40 years; group II, 40 to 59 years; and group III, 60 years and older. Recordings were made along the long axis in the apical 4- and 2-chamber views by using 4 sites (septal, anterior, lateral, and inferior) at the mitral annulus and 1 site at the tricuspid annulus. Systolic mitral annular velocity (10.3 +/- 1.4 cm/s) correlated strongly with global left ventricular function determined by M-mode echocardiographic mitral annular displacement (r = 0.70, P <.001). The systolic velocity was significantly lower in group III than in group I (9.6 vs 10.8 cm/s, P <.01). A relatively weak, but significant, correlation was found between systolic velocity and the age of the subjects (r = -0.43, P <.001). Mitral annular early diastolic velocity was also lower in group III compared with group I (11.3 vs 17.7 cm/s, P <.001), with a strong correlation with age (r = -0.81, P <.001) and other conventional Doppler diastolic parameters. Both the systolic and early diastolic mitral annular velocities at the septum were lower than at other left ventricular sites. Tricuspid annular systolic velocity (15.2 +/- 1.9 cm/s) was higher than mitral annular systolic velocity (P <.001). Unlike mitral annular velocity, systolic tricuspid annular velocity was not correlated with age. However, the diastolic tricuspid annular velocities correlated well with transtricuspid Doppler diastolic parameters. The method of recording the annular velocities was feasible in all subjects, simple and highly reproducible.
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              Normal regional right ventricular function and its change with age: a Doppler myocardial imaging study.

              Doppler Myocardial Imaging (DMI) is a new technique currently being studied for the assessment of regional systolic and diastolic left ventricular (LV) function. No normal values or data on age-related changes in regional myocardial right ventricular (RV) velocities are available. Color DMI was used in 32 healthy volunteers (aged 16-76 years) to derive regional velocities from basal, medial, and apical segments of the RV free wall in the apical 4-chamber view, and from distal segments as well as from the tricuspid annulus in the parasternal long-axis view. Both mitral annular and regional LV velocities (4-chamber, long-axis parasternal view) were also recorded and compared with corresponding RV regional velocities. The M-mode displacement of the cardiac base was measured. Corresponding RV and LV DMI data sets were compared. For longitudinal function, RV free wall systolic velocities were consistently higher than velocities recorded in corresponding LV segments (analysis of variance, P <.05). Older subjects (40-76 years; 13 men, 2 women) had lower RV long-axis regional velocities than younger subjects (16-39 years; 15 men, 2 women), but had higher short-axis RV systolic velocities. For diastolic velocities, a negative correlation between age and the ratio of regional early diastolic to late diastolic velocity was shown for all RV free wall segments (eg, basal segment: r = -0.63, P <.0001). The right ventricle has higher long-axis regional velocities, a greater excursion of its lateral atrioventricular valve ring, and reduced circumferential shortening velocities compared with the left ventricle. Right ventricular longitudinal shortening is dominant over short-axis function in healthy young subjects. Normal age-related changes of diastolic velocities for each segment of the normal RV free wall have been defined.

                Author and article information

                Am J Nephrol
                American Journal of Nephrology
                S. Karger AG
                June 2005
                01 July 2005
                : 25
                : 3
                : 256-261
                Departments of aCardiology and bInternal Medicine, Abant Izzet Baysal University, Izzet Baysal Medical Faculty, Bolu; bDepartment of Cardiology, Abant Izzet Baysal University, Duzce Medical Faculty, Duzce; dEtlik SSK Hospital Cardiology Clinic, Ankara, and eDepartment of Cardiology, Erciyes University, Medical Faculty, Kayseri, Turkey
                86080 Am J Nephrol 2005;25:256–261
                © 2005 S. Karger AG, Basel

                Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

                : 06 December 2004
                : 25 April 2005
                Page count
                Tables: 4, References: 21, Pages: 6
                Self URI (application/pdf): https://www.karger.com/Article/Pdf/86080
                Self URI (text/html): https://www.karger.com/Article/FullText/86080
                Self URI (journal page): https://www.karger.com/SubjectArea/Nephrology
                Original Report: Patient-Oriented, Translational Research

                Cardiovascular Medicine,Nephrology
                Tissue Doppler velocity,Preload on right ventricular function,Hemodialysis patients,Right ventricle function assessment,Tissue Doppler echocardiography


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