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Gender- and age-related differences in rest and post-stress left ventricular cardiac function determined by gated SPECT


Gebhard, Catherine; Stähli, Barbara E; Gebhard, Caroline E; Fiechter, Michael; Fuchs, Tobias A; Stehli, Julia; Klaeser, Bernd; Tanner, Felix C; Gaemperli, Oliver; Kaufmann, Philipp A (2014). Gender- and age-related differences in rest and post-stress left ventricular cardiac function determined by gated SPECT. International Journal of Cardiovascular Imaging, 30(6):1191-1199.

Abstract

Gender- and age-related changes of left ventricular (LV) function and dimensions have not been elucidated in a large population by gated SPECT. Thus, the aim of this study was to derive male and female reference limits for left ventricular functional parameters, and determine the effect of age on LV dimensions and systolic function for this imaging modality. 1,639 (53 % males) subjects without cardiovascular disease who underwent cardiac SPECT between January 2002 and June 2012 were included in this study. Mean age at presentation was 61 ± 12 years (range 18-92 years). A significant effect of age (p = 0.011) and gender (p < 0.0001) on resting LV ejection fraction (LVEF) was observed, with an increase in LVEF with age being more pronounced in women (ΔB-coefficient: -0.088, p = 0.011). Overall, mean LVEF was higher in women compared to men (70.3 ± 8.6 % vs. 64.4 ± 7.5 %, p < 0.0001). LVEF after pharmacological stress with adenosine was significantly lower than at rest in both women and men (∆LVEF = 1.1 % in males and ∆LVEF = 1.6 % in females, p = 0.01), which was the result of a significant increase in end-systolic volume after stress (p = 0.0001). With advancing age an increase in LVEF was observed that was more pronounced in women than in men. These findings indicate that the evaluation of cardiac function and volumes of patients by gated SPECT should consider age- and gender-matched normative values.

Gender- and age-related changes of left ventricular (LV) function and dimensions have not been elucidated in a large population by gated SPECT. Thus, the aim of this study was to derive male and female reference limits for left ventricular functional parameters, and determine the effect of age on LV dimensions and systolic function for this imaging modality. 1,639 (53 % males) subjects without cardiovascular disease who underwent cardiac SPECT between January 2002 and June 2012 were included in this study. Mean age at presentation was 61 ± 12 years (range 18-92 years). A significant effect of age (p = 0.011) and gender (p < 0.0001) on resting LV ejection fraction (LVEF) was observed, with an increase in LVEF with age being more pronounced in women (ΔB-coefficient: -0.088, p = 0.011). Overall, mean LVEF was higher in women compared to men (70.3 ± 8.6 % vs. 64.4 ± 7.5 %, p < 0.0001). LVEF after pharmacological stress with adenosine was significantly lower than at rest in both women and men (∆LVEF = 1.1 % in males and ∆LVEF = 1.6 % in females, p = 0.01), which was the result of a significant increase in end-systolic volume after stress (p = 0.0001). With advancing age an increase in LVEF was observed that was more pronounced in women than in men. These findings indicate that the evaluation of cardiac function and volumes of patients by gated SPECT should consider age- and gender-matched normative values.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Nuclear Medicine
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:August 2014
Deposited On:27 Aug 2014 17:12
Last Modified:05 Apr 2016 18:21
Publisher:Springer
ISSN:1569-5794
Publisher DOI:https://doi.org/10.1007/s10554-014-0431-y
PubMed ID:24771130

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