Left atrial flow propagation velocity: a new approach for assessment of left atrial reservoir function
Jazyk angličtina Země Spojené státy americké Médium print-electronic
Typ dokumentu hodnotící studie, časopisecké články, práce podpořená grantem
- MeSH
- analýza rozptylu MeSH
- barevná dopplerovská echokardiografie * MeSH
- dospělí MeSH
- hemodynamika * MeSH
- lidé MeSH
- mladý dospělý MeSH
- nitroglycerin aplikace a dávkování MeSH
- odchylka pozorovatele MeSH
- poddajnost MeSH
- prediktivní hodnota testů MeSH
- pulzní dopplerovská echokardiografie * MeSH
- reprodukovatelnost výsledků MeSH
- rychlost toku krve MeSH
- srdce - funkce levé síně * MeSH
- srdeční síně diagnostické zobrazování patofyziologie MeSH
- studie proveditelnosti MeSH
- svalová kontrakce MeSH
- Valsalvův manévr MeSH
- vazodilatancia aplikace a dávkování MeSH
- venae pulmonales diagnostické zobrazování patofyziologie MeSH
- Check Tag
- dospělí MeSH
- lidé MeSH
- mladý dospělý MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- hodnotící studie MeSH
- práce podpořená grantem MeSH
- Názvy látek
- nitroglycerin MeSH
- vazodilatancia MeSH
To assess the feasibility of left atrial flow propagation velocity (LAFPV) measurement and to evaluate the influence of preload alterations on this new parameter of left atrial (LA) reservoir function as compared to conventional echocardiographic indices. 30 healthy volunteers (26 ± 5 years, 20 males) underwent echocardiographic examination at rest, during passive leg lifting and after sublingual administration of nitroglycerine with subsequent Valsalva maneuver. LA reservoir function was assessed by conventional indices including LA expansion index, peak velocity and velocity-time integral of pulmonary venous systolic flow. As well, LAFPV was measured by color M-mode in an apical 4-chamber view as the slope of the transatrial flow wave during LA reservoir phase. LAFPV measurement was feasible in 25 subjects (83%). All conventional parameters of LA reservoir function were significantly altered from resting values by both load-modifying conditions. However, LAPFV was not significantly altered by such maneuvers (228 ± 28 cm s⁻¹ at rest vs. 238 ± 3 cm s⁻¹ during leg lifting, P = NS, vs. 218 ± 38 cm s(-1) after nitroglycerin with Valsalva maneuver, P = NS vs. rest, P < 0.01 vs. leg lifting). LAFPV can be measured in a majority of subjects and represents a new, less load-dependent index of LA reservoir function that may more appropriately reflect LA compliance.
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Am J Cardiol. 2008 Jun 1;101(11):1626-9 PubMed
J Am Soc Echocardiogr. 2004 Apr;17(4):353-60 PubMed
Eur Heart J. 2001 Jan;22(1):22-36 PubMed
Circ Res. 1988 Mar;62(3):543-53 PubMed
Eur J Echocardiogr. 2006 Mar;7(2):79-108 PubMed
Anesthesiology. 2003 Apr;98(4):975-94 PubMed
J Am Soc Echocardiogr. 2005 Sep;18(9):991-7 PubMed
Med Sci Monit. 2000 Jul-Aug;6(4):827-39 PubMed
Eur J Echocardiogr. 2009 Mar;10(2):256-9 PubMed
J Am Soc Echocardiogr. 1997 Apr;10(3):271-92 PubMed
Circulation. 1992 Aug;86(2):651-9 PubMed
Am J Cardiol. 1998 Sep 15;82(6):756-61 PubMed
Eur J Echocardiogr. 2006 Jun;7(3):199-208 PubMed
J Am Coll Cardiol. 1997 Nov 15;30(6):1562-74 PubMed
J Am Soc Echocardiogr. 1999 Feb;12(2):129-37 PubMed
Eur J Echocardiogr. 2009 Aug;10(6):753-9 PubMed
J Am Coll Cardiol. 2000 Nov 1;36(5):1664-9 PubMed
Circulation. 1999 Jul 27;100(4):427-36 PubMed
Eur J Echocardiogr. 2003 Jun;4(2):92-100 PubMed
Echocardiography. 1999 Jan;16(1):117-125 PubMed
Am J Cardiol. 1969 Apr;23(4):556-67 PubMed
Circ Res. 1974 Jul;35(1):39-43 PubMed
Circulation. 1992 Oct;86(4):1317-22 PubMed
J Am Coll Cardiol. 1992 Aug;20(2):420-32 PubMed
Am Heart J. 1994 Aug;128(2):308-15 PubMed
J Am Soc Echocardiogr. 1999 Aug;12(8):618-28 PubMed
Int J Cardiol. 1994 Dec;47(2):139-43 PubMed
Clin Cardiol. 1994 May;17(5):258-62 PubMed
J Am Soc Echocardiogr. 2009 Mar;22(3):299-305 PubMed
Am J Cardiol. 1991 Oct 15;68(10):1049-54 PubMed
J Am Coll Cardiol. 2001 Jan;37(1):278-85 PubMed
Heart. 2007 Nov;93(11):1461-70 PubMed
Circulation. 2007 Mar 20;115(11):1376-83 PubMed
Echocardiography. 2009 Aug;26(7):772-8 PubMed
Am J Cardiol. 1998 May 1;81(9):1138-43 PubMed
Hypertension. 1986 Sep;8(9):779-85 PubMed
