Ventricular size increases during growth, but often due to @entity299 . This study aims to describe left ventricular dimension interrelations using a representation that is applicable to @entity1 with @entity299 , and subsequently to statistically study possible age and gender influences in a large population. In retrospect we analyzed echocardiographically obtained diameters of the left ventricle in 442 @entity235 of various breeds with congenital or acquired @entity299 . Also, we compared our findings with published data on @entity1 and other animals. Multivariate regression analysis was applied to assess possible influences of age and gender. A high correlation was found for end-systolic diameter (ESD) versus @entity998 ( @entity998 ): ESD (cm) = -1.01 cm + 0.93 x @entity998 (cm) with r = 0.94, p < .00001. Next, these @entity1 were categorized into three age groups (divisions at 3 and 7 years). We detected a slight age dependent effect: the regression coefficients for the younger group differed from the two older groups. No significant gender-related influence was detected. The observation of a high correlation for the ESD versus @entity998 relationship could be confirmed by reanalysis of published data on normal individuals and @entity1 @entity1 . The newly described relationship between ESD and @entity998 applies in particular to cardiac @entity1 . This is a relevant finding, because clinically important indices of ventricular performance generally depend on ESD, @entity998 or both. Thus, ESD versus @entity998 offers a convenient framework for studies on cardiac volume regulation and performance in the cardiopathological spectrum, while permitting incorporation of modulating effects related to age.

Age variance of left ventricular diameters in XXXX with @entity299 .

@entity1 :: ('9606', 'Species') :: ['humans', 'human', 'patients'] @entity998 :: ('MESH:D002303', 'Disease') :: ['EDD', 'end-diastolic diameter'] @entity235 :: ('9615', 'Species') :: ['dogs'] @entity299 :: ('MESH:D006331', 'Disease') :: ['cardiac disease', 'heart disease']
@entity235 :: (9615,Species) :: ['dogs']
