| Ventricular synchronicity: observations comparing pulse flow and tissue Doppler assessment in a Chinese healthy adult cohort. | |
| | |
MedLine Citation:
|
PMID: 22340461 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
|
BACKGROUND: Mechanical asynchrony is an important parameter in predicting the response to cardiac resynchronization therapy, but detailed knowledge about cardiac timing in healthy persons is scarce. Therefore, in the current study, we sought to investigate the physiological status of interventricular synchronicity using pulse wave flow and tissue Doppler imaging in a healthy Chinese population. METHODS: Eighty-eight healthy volunteers underwent standard flow and tissue Doppler echocardiographic examinations. Ventricular inflow and outflow pulse wave flow Doppler patterns were recorded together with annulus pulse tissue Doppler imaging. Time intervals from the beginning of the QRS complex to the onset, peak and end of each wave were measured. RESULTS: The onsets of systole between left and right ventricles were highly synchronized by both imaging modalities. However, the left ventricle reached the peak flow ejection and peak mechanical contraction earlier than the right ventricle, (165.61 ± 26.23) ms vs. (204.3 ± 34.55) ms (P < 0.01) and (133.62 ± 26.19) ms vs. (191.25 ± 38.47) ms (P < 0.01). Time to peak early diastolic relaxation was earlier in the left ventricle than in the right heart, (500.23 ± 56.52) ms vs. (524.94 ± 47.42) ms (P < 0.01). CONCLUSIONS: Left and right ventricles were well synchronized at the onsets of systole and diastole even though interventricular peak systolic and peak early diastolic dyssynchrony was observed in healthy people by pulse wave Doppler imaging. In addition, diastolic timing events were slightly affected by age and gender. |
| | |
Authors:
|
Xin Quan; Tian-Gang Zhu; Shi Guo; Jian-Xin Ma; Xin Wang; Ji-Hong Guo |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Chinese medical journal Volume: 125 ISSN: 0366-6999 ISO Abbreviation: Chin. Med. J. Publication Date: 2012 Jan |
Date Detail:
|
Created Date: 2012-02-20 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 7513795 Medline TA: Chin Med J (Engl) Country: China |
Other Details:
|
Languages: eng Pagination: 27-32 Citation Subset: IM |
Affiliation:
|
Heart Center, Peking University People's Hospital, Beijing 100044, China. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Prevalence and risk factors for left ventricular hypertrophy and left ventricular geometric abnormal...
Next Document: Diagnosis of intravenous leiomyomatosis extending to heart with emphasis on magnetic resonance imagi...