What is a "normal" right ventricle?
OBJECTIVE
The aim of this project was to define normal values of right ventricular (RV) volumes and ejection fraction (EF) in healthy population using 2D echocardiography.


RESULTS
The "patient" group comprised 91 healthy volunteers aged 17-62 years. RV volumetry was based on ellipsoidal shell model method. Left ventricular (LV) volumes were assessed by Teichholz formula. All volumes were indexed per m(2) of BSA and the rate distribution of measured and calculated values were evaluated. The normal range of individual parameters was expressed as mean value+/-2 standard deviations (delta). A pair test was used to compare corresponding results of the RV and LV measurements. The regression analysis was used to test the relationship between LV and RV volumes and age. Indexed enddiastolic and endsystolic RV volumes were 79.1+/-29.9ml and 32.6+/-19.7ml, respectively, EF being 50+/-9.7% in men and 58+/-13.6% in women. No correlation with patient's age was observed.


CONCLUSIONS
Enddiastolic and endsystolic volumes of RV were significantly higher than those of LV. EF of RV was lower as compare to LV. Right ventricular EF in men was lower than that in women. There was no correlation between EF and patient's age.
Kovalova
Sylva
S
Centre of Cardiovascular Surgery and Transplantation, Pekarska 53, 656 91 Brno, Czech Republic. sylva.kovalova@cktch.cz
Necas
Josef
J
Vespalec
Jaroslav
J
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D004452:Echocardiography; D005260:Female; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D016011:Normal Distribution; D012044:Regression Analysis; D012727:Sex Characteristics; D013318:Stroke Volume / Q000502:physiology*; D016276:Ventricular Function