TY - JOUR
T1 - Secular trends in echocardiographic left ventricular mass in the community
T2 - The framingham heart study
AU - Kaess, Bernhard M.
AU - Gona, Philimon
AU - Larson, Martin G.
AU - Cheng, Susan
AU - Aragam, Jayashree
AU - Kenchaiah, Satish
AU - Benjamin, Emelia J.
AU - Vasan, Ramachandran S.
PY - 2013/11
Y1 - 2013/11
N2 - Objective To investigate secular trends in echocardiographically determined left ventricular mass (LVM). Design, setting and participants Longitudinal community-based cohort study in Framingham, Massachussetts. LVM was calculated from routine echocardiography in 4320 participants (52% women) of the Framingham offspring cohort at examination cycles 4 (1987-1991), 5 (1991-1995), 6 (1995-1998) and 8 (2005-2008), totalling 13 971 person-observations. Main outcome measures Sex-specific trends in mean LVM (and its components, LV diastolic diameter (LVDD) and LV wall thickness (LVWT)), and LVM indexed to body surface area (BSA). Results In men, age-adjusted LVM modestly increased from examination 4 to 8 (192 g to 198 g, p-trend=0.0005), whereas, in women it decreased from 147 g at examination 4 to 140 g at examination 8 ( p-trend<0.0001). The trend for increasing LVM in men tracked with an increasing LVDD ( p-trend=0.0002), whereas the decline in LVM in women was accompanied by a decrease in LVWT ( p-trend<0.0001). Indexing LVM to BSA abolished the increasing trend in men ( p-trend=0.49), whereas, the decreasing trend in women was maintained. Conclusions In our longitudinal analysis of a large community-based sample spanning two decades, we observed sex-related differences in trends in LVM, with a modest increase of LVM in men (likely attributable to increasing body size), but a decrease in women. Additional studies are warranted to elucidate the basis for these sex-related differences.
AB - Objective To investigate secular trends in echocardiographically determined left ventricular mass (LVM). Design, setting and participants Longitudinal community-based cohort study in Framingham, Massachussetts. LVM was calculated from routine echocardiography in 4320 participants (52% women) of the Framingham offspring cohort at examination cycles 4 (1987-1991), 5 (1991-1995), 6 (1995-1998) and 8 (2005-2008), totalling 13 971 person-observations. Main outcome measures Sex-specific trends in mean LVM (and its components, LV diastolic diameter (LVDD) and LV wall thickness (LVWT)), and LVM indexed to body surface area (BSA). Results In men, age-adjusted LVM modestly increased from examination 4 to 8 (192 g to 198 g, p-trend=0.0005), whereas, in women it decreased from 147 g at examination 4 to 140 g at examination 8 ( p-trend<0.0001). The trend for increasing LVM in men tracked with an increasing LVDD ( p-trend=0.0002), whereas the decline in LVM in women was accompanied by a decrease in LVWT ( p-trend<0.0001). Indexing LVM to BSA abolished the increasing trend in men ( p-trend=0.49), whereas, the decreasing trend in women was maintained. Conclusions In our longitudinal analysis of a large community-based sample spanning two decades, we observed sex-related differences in trends in LVM, with a modest increase of LVM in men (likely attributable to increasing body size), but a decrease in women. Additional studies are warranted to elucidate the basis for these sex-related differences.
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U2 - 10.1136/heartjnl-2013-304600
DO - 10.1136/heartjnl-2013-304600
M3 - Article
C2 - 24041649
AN - SCOPUS:84885863951
SN - 1355-6037
VL - 99
SP - 1693
EP - 1698
JO - Heart
JF - Heart
IS - 22
ER -