Systolic Function: Difference between revisions

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==Left ventricular systolic function==
==Left ventricular systolic function==
===Left ventricular function===
===Left ventricular function===
{| class="wikitable" cellpadding="0" cellspacing="0" border="0" width="700px"
|-
!rowspan="2"|
!colspan="4"|Women
!colspan="4"|Men
|-
|align="center"|'''Reference range'''
|align="center"|'''Mildly abnormal'''
|align="center"|'''Moderately abnormal'''
|align="center"|'''Severely abnormal'''
|align="center"|'''Reference range'''
|align="center"|'''Mildly abnormal'''
|align="center"|'''Moderately abnormal'''
|align="center"|'''Severely abnormal'''
|-
|colspan="9"|'''Linear method'''
|-
|Wallmotion score index
|1.0
|1.0-1.5
|1.5-2.0
|<2.0
|1.0
|1.0-1.5
|1.5-2.0
|<2.0
|-
|Endocardial fractional shortening, %
|27-45
|22-26
|17-21
|≤16
|25-43
|20-24
|15-19
|≤14
|-
|Midwall fractional shortening, %
|15-23
|13-14
|11-12
|≤10
|14-22
|12-13
|10-11
|≤10
|-
|colspan="9"|'''2D Method'''
|-
!Ejection fraction, %
!≥55
!45–54
!30–44
!<30
!≥55
!45–54
!30–44
!<30
|-
|colspan="9"|'''Doppler Method'''
|-
|Myocard performance index
|<0.40
|
|
|
|<0.40
|
|
|
|-
|dP/dt
|>1100
|
|
|<500
|>1100
|
|
|<500
|-
|colspan="9"|'''Bold values:''' Recommended and best validated.<cite>1</cite>
|}


===Left ventricular function by Strain Rate Imaging===
===Left ventricular function by Strain Rate Imaging===

Revision as of 09:38, 17 November 2013

The Left Ventricular

Each echocardiogram is an evaluation of the LV dimensions, wall thicknesses and function.

There has to be conducted several (read: different) measurements to be a good estimate of LV function.

Left ventricular systolic function

Left ventricular function

Women Men
Reference range Mildly abnormal Moderately abnormal Severely abnormal Reference range Mildly abnormal Moderately abnormal Severely abnormal
Linear method
Wallmotion score index 1.0 1.0-1.5 1.5-2.0 <2.0 1.0 1.0-1.5 1.5-2.0 <2.0
Endocardial fractional shortening, % 27-45 22-26 17-21 ≤16 25-43 20-24 15-19 ≤14
Midwall fractional shortening, % 15-23 13-14 11-12 ≤10 14-22 12-13 10-11 ≤10
2D Method
Ejection fraction, % ≥55 45–54 30–44 <30 ≥55 45–54 30–44 <30
Doppler Method
Myocard performance index <0.40 <0.40
dP/dt >1100 <500 >1100 <500
Bold values: Recommended and best validated.[1]

Left ventricular function by Strain Rate Imaging

References

  1. Lang RM, Bierig M, Devereux RB, Flachskampf FA, Foster E, Pellikka PA, Picard MH, Roman MJ, Seward J, Shanewise J, Solomon S, Spencer KT, St John Sutton M, Stewart W, American Society of Echocardiography's Nomenclature and Standards Committee, Task Force on Chamber Quantification, American College of Cardiology Echocardiography Committee, American Heart Association, and European Association of Echocardiography, European Society of Cardiology. Recommendations for chamber quantification. Eur J Echocardiogr. 2006 Mar;7(2):79-108. DOI:10.1016/j.euje.2005.12.014 | PubMed ID:16458610 | HubMed [1]
  2. Marwick TH, Leano RL, Brown J, Sun JP, Hoffmann R, Lysyansky P, Becker M, and Thomas JD. Myocardial strain measurement with 2-dimensional speckle-tracking echocardiography: definition of normal range. JACC Cardiovasc Imaging. 2009 Jan;2(1):80-4. DOI:10.1016/j.jcmg.2007.12.007 | PubMed ID:19356538 | HubMed [2]

All Medline abstracts: PubMed | HubMed