Does arterial stiffness predict mortality in patients with scleroderma: a long-term follow-up study.

OBJECTIVE: Subclinical macrovascular impairment, which has been evaluated with various arterial stiffness (AS) parameters, has been defined in patients with systemic sclerosis (SSc). However, studies investigating the relationship between AS and clinical endpoints in SSc are lacking. This study aims to determine the prognostic value of AS parameters to predict all-cause mortality in SSc patients. PATIENTS AND METHODS: AS parameters [carotid-radial pulse wave velocity (PWV) and augmentation index (AIx)] were assessed via applanation tonometry. The prognostic value of these parameters was quantified in patients with SSc (n=60) without pulmonary arterial hypertension (PAH) and obvious cardiac involvement against survival. RESULTS: The overall median follow-up time was 10.3 years, and a 29.4% (n=20) mortality was observed. Four significant predictors of mortality were observed: lung involvement (HR 2.608, p=0.04), the lower level of predicted carbon monoxide diffusing capacity (HR 0.978, p=0.03), lower level of estimated glomerular filtration rate (HR 0.979, p=0.04), and elevated serum C reactive protein (CRP) levels (HR 1.066, p<0.001). Among these variables, elevated CRP was found to be an independent predictor of all-cause mortality. AS parameters were not associated with all-cause mortality (HR 1.014, p=0.6 for AIx and HR 0.737, p=0.19 for PWV, respectively). CONCLUSIONS: Long-term data failed to demonstrate the prognostic value of AS parameters in predicting all-cause mortality in SSc patients. The exact mechanisms of cardiovascular (CV) mortality in SSc patients deemed to be atherosclerotic in origin needs to be determined in large-scale studies.

Arterial stiffness and cardiac functions in patients with chronic venous disease.

AIM: Although the venous system is in direct continuity with the heart and the arterial system, it is not known whether chronic venous disease (CVD) has any impact on either of these. The aims of this study were to investigate the global functions of the left and right heart, and also arterial stiffness parameters in patients with CVD. METHODS: Forty-eight patients with primary stage C4-C6 CVD were enrolled into the study. The control group consisted of 39 age/sex and Body Mass Index matched healthy volunteers. All of the patients underwent detailed echocardiographic examination with further focus on Doppler and tissue Doppler (TD) parameters of the left and right ventricle. Arterial stiffness was evaluated via applanation tonometry in each patient. RESULTS: The left atrial area (LAA) and interventricular septum thickness were slightly increased in patients with CVD. Regarding Doppler and tissue Doppler measurements of the LV, all of the parameters were similar among the groups, while RV tissue Doppler systolic velocity and TAPSE were higher in patients with CVD. Among the arterial stiffness parameters, central aortic pressure, augmentation index, and pulse wave velocity were slightly higher in patients with CVD. CONCLUSION: The results of this study indicated that CVD may be associated with a subclinical disease state in the arterial system and also in the heart. Further studies are needed to confirm this association and to describe the possible mechanisms.