Left ventricular ejection time: its relation to left ventricular systolic function and functional capacity in cardiomyopathic patients
Background and aim Left ventricular ejection time (LVET) was used to evaluate left ventricular function. Transthoracic echocardiogram was done, and parameters of LV systolic function by utilizing tissue Doppler imaging and two-dimensional strain were obtained. Moreover, the New York Heart Associatio...
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2024-04-01
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| Series: | Al-Azhar Assiut Medical Journal |
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| Online Access: | https://journals.lww.com/10.4103/azmj.azmj_39_24 |
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| author | Eman S. El Shahawy Asmaa A. Hassan |
| author_facet | Eman S. El Shahawy Asmaa A. Hassan |
| author_sort | Eman S. El Shahawy |
| collection | DOAJ |
| description | Background and aim
Left ventricular ejection time (LVET) was used to evaluate left ventricular function. Transthoracic echocardiogram was done, and parameters of LV systolic function by utilizing tissue Doppler imaging and two-dimensional strain were obtained. Moreover, the New York Heart Association (NYHA) functional class and 6 min walk test (6MWT) was investigated intending to detect the LVET value in the detection of LV systolic dysfunction in patients with dilated cardiomyopathy (DCM) and its relation to a functional capacity to assess the clinical severity of systolic heart failure.
Patients and methods
The enrolled 131 cases (101 myopathic patients and 30 case as a control). All cases do complete transthoracic echocardiogram to assess LV dimensions, volumes, and systolic function. Parameters of LV systolic function were compared in both groups. LVET was calculated, compared, and correlated with LV systolic function, NYHA class, and 6MWT.
Results
The LV volumes of patients with DCM were significantly elevated (P<0.001), while their LV systolic function was significantly reduced. Additionally, the cardiomyopathic group revealed a significant reduction in LVET in comparison to the control group (P=0.002). Moreover, the LVET correlates significantly with parameters of LV systolic function [LVEF by M-mode (r=0.01), LVEF by two-dimensional (r=0.17), left ventricular global longitudinal strain (r=0.09), left ventricular systolic velocity (r=0.20)]. Furthermore, LVET connected to NYHA functional class and 6MWT (r=−0.06, P<0.0001, r=0.04, P=0.01, respectively).
Conclusions
In individuals having DCM, LVET is a simple and valuable measure to diagnose LV systolic dysfunction as well as it has potential implications for assessing the clinical severity of heart failure. |
| format | Article |
| id | doaj-art-a286f903a8fe4b41b50019bbd64e4510 |
| institution | Kabale University |
| issn | 1687-1693 |
| language | English |
| publishDate | 2024-04-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Al-Azhar Assiut Medical Journal |
| spelling | doaj-art-a286f903a8fe4b41b50019bbd64e45102025-01-17T15:57:46ZengWolters Kluwer Medknow PublicationsAl-Azhar Assiut Medical Journal1687-16932024-04-0122211812610.4103/azmj.azmj_39_24Left ventricular ejection time: its relation to left ventricular systolic function and functional capacity in cardiomyopathic patientsEman S. El ShahawyAsmaa A. HassanBackground and aim Left ventricular ejection time (LVET) was used to evaluate left ventricular function. Transthoracic echocardiogram was done, and parameters of LV systolic function by utilizing tissue Doppler imaging and two-dimensional strain were obtained. Moreover, the New York Heart Association (NYHA) functional class and 6 min walk test (6MWT) was investigated intending to detect the LVET value in the detection of LV systolic dysfunction in patients with dilated cardiomyopathy (DCM) and its relation to a functional capacity to assess the clinical severity of systolic heart failure. Patients and methods The enrolled 131 cases (101 myopathic patients and 30 case as a control). All cases do complete transthoracic echocardiogram to assess LV dimensions, volumes, and systolic function. Parameters of LV systolic function were compared in both groups. LVET was calculated, compared, and correlated with LV systolic function, NYHA class, and 6MWT. Results The LV volumes of patients with DCM were significantly elevated (P<0.001), while their LV systolic function was significantly reduced. Additionally, the cardiomyopathic group revealed a significant reduction in LVET in comparison to the control group (P=0.002). Moreover, the LVET correlates significantly with parameters of LV systolic function [LVEF by M-mode (r=0.01), LVEF by two-dimensional (r=0.17), left ventricular global longitudinal strain (r=0.09), left ventricular systolic velocity (r=0.20)]. Furthermore, LVET connected to NYHA functional class and 6MWT (r=−0.06, P<0.0001, r=0.04, P=0.01, respectively). Conclusions In individuals having DCM, LVET is a simple and valuable measure to diagnose LV systolic dysfunction as well as it has potential implications for assessing the clinical severity of heart failure.https://journals.lww.com/10.4103/azmj.azmj_39_246 min walk testdilated cardiomyopathyleft ventricluar ejection timeleft ventricluar systolic functionnew york heart association functional class |
| spellingShingle | Eman S. El Shahawy Asmaa A. Hassan Left ventricular ejection time: its relation to left ventricular systolic function and functional capacity in cardiomyopathic patients Al-Azhar Assiut Medical Journal 6 min walk test dilated cardiomyopathy left ventricluar ejection time left ventricluar systolic function new york heart association functional class |
| title | Left ventricular ejection time: its relation to left ventricular systolic function and functional capacity in cardiomyopathic patients |
| title_full | Left ventricular ejection time: its relation to left ventricular systolic function and functional capacity in cardiomyopathic patients |
| title_fullStr | Left ventricular ejection time: its relation to left ventricular systolic function and functional capacity in cardiomyopathic patients |
| title_full_unstemmed | Left ventricular ejection time: its relation to left ventricular systolic function and functional capacity in cardiomyopathic patients |
| title_short | Left ventricular ejection time: its relation to left ventricular systolic function and functional capacity in cardiomyopathic patients |
| title_sort | left ventricular ejection time its relation to left ventricular systolic function and functional capacity in cardiomyopathic patients |
| topic | 6 min walk test dilated cardiomyopathy left ventricluar ejection time left ventricluar systolic function new york heart association functional class |
| url | https://journals.lww.com/10.4103/azmj.azmj_39_24 |
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