JCCVS
Journal of Cardiology & Cardiovascular Surgery

Journal of Cardiology & Cardiovascular Surgery scientific, open-access, double-blind peer-reviewed journal covering a wide spectrum of topics in cardiology and cardiovascular surgery.

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Original Article
Evaluation of right ventricle functions in acute pulmonary thromboembolism using tissue doppler imaging
Abstract
Aims: Right ventricular (RV) systolic and diastolic functions are impaired in a significant proportion of patients with acute pulmonary thromboembolism (PTE). In these cases, knowledge of RV function is of great importance both in the diagnosis and in the choice of treatment. Our aim was to evaluate RV systolic and diastolic functions by standard pulse Doppler and tissue Doppler imaging (TDI) in normotensive patients with PTE without hemodynamic disturbances.
Methods: A total of 48 subjects, including 28 acute PTE patients (14 M, 14 F) with a mean age of 41 ± 13 years and 20 healthy subjects (10 M, 10 F) with a mean age of 40 ± 9 years, were included in our study. At the level of the tricuspid and mitral valve cusps, pulse Doppler echocardiography evaluated diastolic filling parameters. With the TDI technique, the diastolic function of the RV lateral wall and septum were analyzed in segments in the apical four-cavity image. Diastolic early and late velocities (e', a'), e'/a' ratio, e'dt, isovolumetric relaxation time (IVRT), systolic velocity (s'), and systolic duration (s' duration) were evaluated by TDI.
Results: Among the RV standard Doppler parameters, a significant decrease in E velocity and E/A ratio and a significant increase in A velocity were observed compared to the control group (p=0.042; p=0.002; p=0.001, respectively). A non-significant prolongation in E’dt was detected. RV ejection fraction was significantly lower in PTE patients compared to the control group (51.1% vs. 69.7%) (p=0.001). TDI was used to look at the RV systolic function, and it was found that all segments had higher systolic (Sa-m) velocities than the control group. However, systolic velocities in patients with DHB in the RV were found to be lower in the annular regions and RV-free wall. Increased s' velocities were observed in annular regions and RV-free walls. However, no statistical significance was found in s' velocity values.
Conclusion: RV systolic and diastolic functions may be impaired in normotensive patients with PTE without hemodynamic disturbances.

Keywords : Acute pulmonary embolism, tissue doppler imaging, right ventricular diastolic function

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Article available in :
Volume 1, Issue 4, 2023
Page : 77-81
https://doi.org/10.51271/JCCVS-0020
Article Information
Received : 30 Kas 2023
Accepted : 26 Ara 2023
Published : 29 Ara 2023
Corresponding Author :

Yücel Yılmaz: Department of Cardiology, Kayseri City Training and Research Hospital, Kayseri, Turkiye

[email protected]
Citation : Yılmaz Y, Sirkeci MT, Keleşoğlu Ş, Oğuzhan A. Evaluation of right ventricle functions in acute pulmonary thromboembolism using tissue doppler imaging. J Cardiol Cardiovasc Surg. 2023;1(4):77-81.

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