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- W3029229898 abstract "：Objective To probe intothe clinical value of left atrial(LA) volme tracking method (LAVT) on the assessment ofleft atrial function in patients with hypertension. Methods Thirty-one patients withhypertension and 31 control subjects were involved. Images of apical two-chamber andfour-chamber views were obtained by two-dimensional echocardiography. LA maximal volume(LAVmax), LA minimal volume (LAVmin), LA presystolic volume (LAVpre), systolic LA fillingrate (dv/dtS), early diastolic LA emptying rate (dv/dtE) and late diastolic LA emptyingrate (dv/dtA) were derived using LAVT. LA passive emptying volume(LAVp), LA passiveemptying fraction(LAVpEF), LA active emptying volume(LAVa), LA active emptying fraction(LAVaEF), LA total emptying volume (LAVt), LA total emptying fraction(LAVtEF) werecalculated. All volume measurements were corrected to body surface area (LAVI). ResultsThere were significant differences in the LAVImax, LAVImin, LAVIpre, LAVpEF, LAVIa,LAVIt,dv/dtS, dv/dtA between hypertensive patients and control subjects(P <0.05~0.001),but no significant differences were found in the LAVp, LAVaEF, LAVtEF,dv/dtE between thetwo groups. The LAVImax has shown significant positive correlation with LAVIp, LAVIa andLAVIt(r = 0.588~0.812, P <0.001). LAVaEF has shown positive correlation with theLAVtEF(r = 0.833, P<0.001), whereas LAVpEF has not(r = 0.420, P <0.01). There was asignificant positive correlation with LAVImax and LAVIpre(r = 0.908, P <0.001), LAVIpreand LAVIa(r = 0.689, P <0.001) ,dv/dtE and LAVIp(r = 0.690, P <0.001),dv/dtA andLAVIa(r = 0.600, P <0.001). Conclusions In hypertensive patients,left atrial reservoirfunction and booster pump function increase, while left atrial conduit function decreases.LAVT has a potential ability to evaluate left atrial function." @default.
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- W3029229898 date "2009-06-25" @default.
- W3029229898 modified "2023-09-25" @default.
- W3029229898 title "Evaluation of the changesof left atrial function in patients with hypertension by left atrial volume trackingmethod" @default.
- W3029229898 doi "https://doi.org/10.3760/cma.j.issn.1004-4477.2009.06.004" @default.
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