Tissue Doppler echocardiography reveals insufficient contractile reserve recruitment during effort in subjects with mitral valve prolapse and those with thick mitral valve.
OBJECTIVE: To assess by tissue Doppler echocardiography (TDE), the tissue velocities, both at rest and after exercise stress testing, in subjects with mitral valve prolapse (MVP) and those with thick mitral valve (TMV). METHODS: Twenty individuals with typical MVP, 30 with TMV, and 30 healthy contro...
| Publicado en: | Echocardiography Vol. 23; no. 2; pp. 114 - 120 |
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| Autores principales: | , , , , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Wiley-Blackwell
Feb2006
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106445822&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106445822 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 07422822 GSE jtl: Echocardiography issn: 07422822 maglogo: Y pubinfo: dt: Feb2006 vid: 23 iid: 2 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 106445822 2009169627 10.1111/j.1540-8175.2006.00184.x NLM16445728 106445822 ppf: 114 ppct: 6 formats: fmt: @attributes: type: P tig: atl: Tissue Doppler echocardiography reveals insufficient contractile reserve recruitment during effort in subjects with mitral valve prolapse and those with thick mitral valve. aug: au: Zampoulakis JD Karavidas AI Matsakas E Lazaros GA Karaminas NT Fotiadis IN Panou FK Zacharoulis A affil: Department of Cardiology, Athens General Hospital, Athens, Greece sug: subj: Echocardiography, Doppler Mitral Valve Insufficiency Ultrasonography Mitral Valve Prolapse Ultrasonography Adolescence Adult Age Factors Analysis of Variance Data Analysis Software Data Analysis, Statistical Descriptive Statistics Female Male Middle Age P-Value Spearman's Rank Correlation Coefficient Human Adolescent: 13-18 years Adult: 19-44 years Middle Aged: 45-64 years Female Male ab: OBJECTIVE: To assess by tissue Doppler echocardiography (TDE), the tissue velocities, both at rest and after exercise stress testing, in subjects with mitral valve prolapse (MVP) and those with thick mitral valve (TMV). METHODS: Twenty individuals with typical MVP, 30 with TMV, and 30 healthy controls were enrolled. TDE was performed at the basal-inferior wall and the parameters evaluated were the S, Em, and Am velocities, as well as the Em/Am ratio. RESULTS: The mean S-wave at rest was higher in subjects with MVP compared to that of the TMV (P < 0.01) and the control groups (P = 0.00005), whereas after exercise it was higher in the control group compared to either MVP (P = 0.013) or TMV group (P = 0.00002). The mean Em wave at rest was higher in the control individuals both at rest (P = 0.007 compared with MVP group and P = 0.013 compared with TMV group), and after exercise (P = 0.0002 and 0.0009, respectively). The Am wave in the MVP group was higher compared with TMV and control subjects at rest (P = 0.022 and 0.00001, respectively) but it was not after exercise (P = ns for both comparisons). The Em/Am ratio of the control group at rest was higher than that of the MVP (P = 0.0000) and TMV (P = 0.00028) groups. However, after exercise, it was higher only when compared with the MVP group (P = 0.016). CONCLUSIONS: Subjects with MVP and those with TMV exhibit a less effective contractile response to exercise compared to healthy individuals. Some degree of diastolic dysfunction, particularly after exercise, was also detected in the individuals with MVP. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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