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Sex-specific difference in cardiac function in patients with systemic sclerosis: association with cardiovascular outcomes
Background Cardiovascular involvement is one of the leading causes of mortality in systemic sclerosis (SSc) and is reported to be higher in men as compared with women. However, the cause of this difference is largely unknown. The objective of this study was to assess sex differences in echocardiographic characteristics, including left ventricular global longitudinal strain (LV GLS), as a potential explanation of sex differences in outcomes.
Methods A total of 746 patients with SSc from four centres, including 628 (84%, 54±13 years) women and 118 (16%, 55±15 years) men, were evaluated with standard and advanced echocardiographic examinations. The independent association of the echocardiographic parameters with the combined endpoint of cardiovascular events-hospitalisation/death was evaluated.
Results Men and women with SSc showed significant differences in disease characteristics and cardiac...
Show moreBackground Cardiovascular involvement is one of the leading causes of mortality in systemic sclerosis (SSc) and is reported to be higher in men as compared with women. However, the cause of this difference is largely unknown. The objective of this study was to assess sex differences in echocardiographic characteristics, including left ventricular global longitudinal strain (LV GLS), as a potential explanation of sex differences in outcomes.
Methods A total of 746 patients with SSc from four centres, including 628 (84%, 54±13 years) women and 118 (16%, 55±15 years) men, were evaluated with standard and advanced echocardiographic examinations. The independent association of the echocardiographic parameters with the combined endpoint of cardiovascular events-hospitalisation/death was evaluated.
Results Men and women with SSc showed significant differences in disease characteristics and cardiac function. After adjusting for the most important clinical characteristics, while LV ejection fraction and diastolic function were not significantly different anymore, men still presented with more impaired LV GLS as compared with women (−19% (IQR −20% to −17%) vs −21% (IQR: −22% to −19%), p<0.001). After a median follow-up of 48 months (IQR: 26–80), the combined endpoint occurred in 182 patients. Men with SSc experienced higher cumulative rates of cardiovascular events-hospitalisation/mortality (χ2=8.648; Log-rank=0.003), and sex differences were maintained after adjusting for clinical confounders, but neutralised when matching the groups for LV GLS.
Conclusion In patients with SSc, male sex is associated with worse cardiovascular outcomes even after adjusting for important clinical characteristics. LV GLS was more impaired in men as compared with women and potentially explains the sex difference in cardiovascular outcomes.
Show less- All authors
- Gegenava, T.; Fortuni, F.; Leeuwen, N.M. van; Tennoe, A.H.; Hoffmann-Vold, A.M.; Jurcut, R.; Giuca, A.; Groseanu, L.; Tanner, F.; Distler, O.; Bax, J.J.; Vries-Bouwstra, J. de; Marsan, N.A.
- Date
- 2023-11-01
- Journal
- RMD Open
- Volume
- 9
- Issue
- 4