Document Detail


Left ventricular inflow propagation velocity at pulsed wave Doppler analysis: an index of relaxation.
MedLine Citation:
PMID:  15846159     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To test whether left ventricular inflow propagation velocity at the pulsed wave Doppler analysis (IPVpw) is a useful noninvasive index of relaxation, 21 patients under coronary angiography for chest pain were included for simultaneous catheter-based and Doppler studies. IPVpw was derived through the application of range ambiguity, and the time constant of isovolumic left ventricular pressure decline (tau) was acquired by a previously described method. At baseline status, IPVpw correlated significantly with the peak negative dP/dt and tau ( r = -0.609, P = .003), but not with the peak velocity of transmitral early flow (E) wave. Sublingual application of nitroglycerin increased heart rate, decreased the transmitral E velocity and transmitral E-to-A velocity ratio, and prolonged the deceleration time of the transmitral E wave. However, there was no significant impact on IPVpw, peak negative dP/dt, or tau. IPVpw correlated with tau ( r = -0.533, P < .001) at the combined analysis of the data before and after nitroglycerin application. In conclusion, IPVpw is a preload-independent, noninvasive index of left ventricular relaxation.
Authors:
Wen-Chol Voon; Ho-Ming Su; Tsung-Hsien Lin; Ming-Yi Lee; Chien-Tsai Lin; Hsueh-Wei Yen; Wen-Ter Lai; Sheng-Hsiung Sheu
Related Documents :
22277919 - Relationship between inflammation and microalbuminuria in prehypertension.
22710649 - Azilsartan medoxomil plus chlorthalidone reduces blood pressure more effectively than o...
2996729 - Evaluation of the alpha and beta blocking effects of intravenous labetalol on left vent...
8904609 - Hemodynamic and norepinephrine responses to pacing-induced heart failure in conscious s...
11998979 - Effects of different inotropic interventions on myocardial function in the developing r...
10647859 - Diaphragm inhibition with positive pressure ventilation: quantification of mechanical e...
2529729 - Infusion of atrial natriuretic hormone in doca/salt and spontaneously hypertensive rats.
16945059 - Probable association between ziprasidone and worsening hypertension.
11322149 - Thermal response of skin to cyclic pressure and pressure with shear: a technical note.
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography     Volume:  18     ISSN:  0894-7317     ISO Abbreviation:  J Am Soc Echocardiogr     Publication Date:  2005 Apr 
Date Detail:
Created Date:  2005-04-22     Completed Date:  2005-05-19     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8801388     Medline TA:  J Am Soc Echocardiogr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  326-9     Citation Subset:  IM    
Affiliation:
Department of Internal Medicine, Kaohsiung Medical University, Taiwan. wcvoon@giga.net.tw
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Blood Flow Velocity / physiology
Echocardiography, Doppler, Pulsed*
Female
Heart Catheterization
Heart Rate / drug effects
Humans
Male
Middle Aged
Nitroglycerin / administration & dosage
Ventricular Dysfunction, Left / physiopathology*,  ultrasonography*
Chemical
Reg. No./Substance:
55-63-0/Nitroglycerin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Differences in the immediate effects of smoking on left ventricular diastolic function between healt...
Next Document:  Strain rate analysis allows detection of differences in diastolic function between viable and nonvia...