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Clitoral blood flow in systemic sclerosis women: correlation with disease clinical variables and female sexual
Edoardo Rosato1, Antonietta Gigante, Biagio Barbano
1Clinical Immunology Unit, Department of Clinical Medicine, Sapienza University of Rome, Viale dell'Università 37, 00185 Rome, Italy. edoardo.rosato@uniroma1.it.
Objectives:
The objectives of this study were to investigate clitoral blood flow in SSc women compared with healthy controls and to correlate it with microvascular damage and disease clinical variables. We also evaluated the correlation between clitoral blood flow and sexual dysfunction.
Methods:
Twenty-two SSc women and 20 healthy controls matched for sex and age were enrolled in this study. Baseline Doppler indices of the clitoral artery were measured. Peak systolic velocity, end diastolic velocity, resistive index (RI), pulsatile index (PI) and systolic/diastolic (S/D) ratio were measured. The female sexual function index (FSFI) was used to assess sexual function.
Results:
The RI and S/D ratio were higher (P < 0.0001) in SSc women compared with healthy controls. The PI, RI and S/D ratio increased with progression of capillaroscopic damage. The RI and S/D ratio were higher (P < 0.01) in women with digital ulcers than in women without digital ulcers. No correlation exists between Doppler indices of the clitoral artery and age or clinical variables of disease. The FSFI was reduced in 7 (32%) of 22 SSc women. A negative correlation was observed between both the FSFI and RI (R = -0.74, P < 0.0001) and the S/D ratio (R = -0.68, P < 0.0001). A negative correlation exists between the RI and all domains of the FSFI score except for desire.
Conclusion:
Clitoral blood flow was reduced in SSc women compared with healthy controls. Clitoral blood flow was reduced in SSc women with digital ulcers and it correlated with capillaroscopic damage progression. A negative correlation exists between the RI and S/D ratio and all domains of the FSFI score except for desire.
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