TAPSE RV Function Z-Scores

Reference values for right ventricular systolic function in the form of z-scores of the tricuspid annular plane systolic excursion (TAPSE). Data are from 640 patients, aged 1 day to 18 years, as described by investigators in Graz, Austria. TAPSE was measured by "2-dimensional echocardiography–guided M-mode recordings from the apical 4-chamber view, with the cursor placed at the free wall of the tricuspid annulus."

Age:	select age 0-30 days 1-3 mos 4-6 mos 7-12 mos 1 yr 2 yr 3 yr 4 yr 5 yr 6 yr 7 yr 8 yr 9 yr 10 yr 11 yr 12 yr 13 yr 14 yr 15 yr 16 yr 17 yr 18 yr
		Mean	Range	Z-Score
Measured TAPSE (cm):

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References

Right Ventricular Function in Infants, Children and Adolescents: Reference Values of the Tricuspid Annular Plane Systolic Excursion (TAPSE) in 640 Healthy Patients and Calculation of z Score Values.
Koestenberger M, Ravekes W, Everett AD, Stueger HP, Heinzl B, Gamillscheg A, Cvirn G, Boysen A, Fandl A, Nagel B.
J Am Soc Echocardiogr. 2009 Jun;22(6):715-9. Epub 2009 May 7.

Coronary Artery Z-Scores (Dallaire and Dahdah, 2010)

New equations for calculating z-scores of the coronary arteries using body surface area or aortic valve diameter. Coronary segments include the circumflex and distal right coronary artery in addition to the usual proximal segments (LMCA, LAD, RCA). Based on data from over 1,000 infants, children, and adolescents seen in Montreal, Quebec, Canada. Particular attention was paid to ensuring the data conforms to a normal distribution— an essential point for properly interpreting z-score results.

Also see: aortic root z-scores.

Indep. Variable:	BSA AOV
Height (cm):
Weight (kg):
BSA formula:	Boyd DuBois Gehan & George Haycock Mosteller Weight ONLY
Aortic Ann. (mm):
Site	Measured (mm)	Mean	Range	Z-Score
LMCA:
LAD:
Circumflex:
Proximal RCA:
Mid RCA:
Distal RCA:

References

New Equations and a Critical Appraisal of Coronary Artery Z Scores in Healthy Children.
Dallaire F, Dahdah N.
J Am Soc Echocardiogr. 2010 Nov 12. [Epub ahead of print]

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Aortic Root Z-Scores (Gautier et al., 2010)

Z-scores of the aortic root at the level of the aortic annulus, sinuses of Valsalva, sinotubular junction, and ascending aorta. Measurements are from the parasternal long axis: aortic annulus measured in systole at the hinge points of the leaflets; sinuses, sinotubular junction and ascending aorta are measured in diastole using leading-edge to leading-edge technique. Data is from 353 normal children as reported by investigators at Hôpital Bichat, Paris, France.

Also see: consolidated aortic root z-score calculator

Height (cm):
Weight (kg):
BSA formula:	Boyd DuBois Gehan & George Haycock Mosteller Weight ONLY
Gender:	Female Male
Site	Measured (mm)	Mean	ULN	Z-Score
Aortic Annulus:
Sinuses:
ST Junction:
Ascending Aorta:

References

Nomograms for Aortic Root Diameters in Children Using Two-Dimensional Echocardiography. Gautier M, Detaint D, Fermanian C, Aegerter P, Delorme G, Arnoult F, Milleron O, Raoux F, Stheneur C, Boileau C, Vahanian A, Jondeau G. Am J Cardiol. 2010 Mar 15;105(6):888-894.