Central obesity affected 77% of patients with HFpEF, significantly exceeding the 62% prevalence of general obesity, and was associated with worse exercise hemodynamics, particularly in women.
Observational (n=229)
No
Does central obesity have a sex-specific impact on haemodynamic and metabolic abnormalities in patients with HFpEF?
Central obesity is highly prevalent in HFpEF and is associated with significantly worse haemodynamic and metabolic perturbations in women compared to men.
Absolute Event Rate: 77% vs 62%
p-value: p=<0.0001
Abstract Aims Obesity is a risk factor for heart failure with preserved ejection fraction (HFpEF), particularly in women, but the mechanisms remain unclear. The present study aimed to investigate the impact of central adiposity in patients with HFpEF and explore potential sex differences. Methods and results A total of 124 women and 105 men with HFpEF underwent invasive haemodynamic exercise testing and rest echocardiography. Central obesity was defined as a waist circumference (WC) ≥88 cm for women and ≥102 cm for men. Exercise‐normalized pulmonary capillary wedge pressure (PCWP) responses were evaluated by the ratio of PCWP to workload (PCWP/W) and after normalizing to body weight (PCWL). The prevalence of central obesity (77%) exceeded that of general obesity (62%) defined by body mass index ≥30 kg/m 2 . Compared to patients without central adiposity, patients with HFpEF and central obesity displayed greater prevalence of diabetes and dyslipidaemia, higher right and left heart filling pressures and pulmonary artery pressures during exertion, and more severely reduced aerobic capacity. Associations between WC and fasting glucose, low‐density lipoprotein (LDL) cholesterol, peak workload, and pulmonary artery pressures were observed in women but not in men with HFpEF. Although increased WC was associated with elevated PCWP in both sexes, the association with PCWP/W was observed in women but not in men. The strength of correlation between PCWP/W and WC was more robust in women with HFpEF as compared to men (Meng's test p = 0.0008), and a significant sex interaction was observed in the relationship between PCWL and WC ( p for interaction = 0.02). Conclusions Central obesity is even more common than general obesity in HFpEF, and there appear to be important sexual dimorphisms in its relationships with metabolic abnormalities and haemodynamic perturbations, with greater impact in women.
Sorimachi et al. (Mon,) conducted a observational in Heart failure with preserved ejection fraction (HFpEF) (n=229). Central obesity vs. Without central obesity was evaluated on Prevalence of central obesity compared to general obesity (p=<0.0001). Central obesity affected 77% of patients with HFpEF, significantly exceeding the 62% prevalence of general obesity, and was associated with worse exercise hemodynamics, particularly in women.
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