Association Between Atrial, Ventricular and Vascular Morphofunctional Alterations in Rheumatoid Arthritis.

INTRODUCTION: Rheumatoid arthritis (RA) represents a risk of non-fatal and cardiovascular events. The aim of the present study was to evaluate simultaneously left and right atrial and ventricular function, as well as arterial stiffness, in RA patients. METHODS: This cross-sectional study included 55 consecutive RA patients and 55 healthy age and gender-matched controls. Blood pressure and arterial stiffness were assessed in all participants, who also underwent a complete echocardiographic examination. RESULTS: RA patients were treated with steroid therapy (52.7%), methotrexate (66.6%) and biological therapy (54.5%). Disease activity score revealed low average RA activity. Augmentation index was significantly higher in RA patients (32.2 ± 8.6 vs. 28.4 ± 8.9%, P = 0.02). Left atrial volume was also higher among RA patients (23.1 ± 8.2 vs. 20.1 ± 7.1 ml/m2, P = 0.04), whereas mitral and tricuspid E/A ratios were significantly lower in RA individuals (0.90 ± 0.24 vs. 1.03 ± 0.35, P = 0.02; 1.07 ± 0.31 vs. 1.27 ± 0.35, P = 0.003, respectively). Tissue Doppler systolic and diastolic velocities were similar between the observed groups. Arterial stiffness index showed significant correlation with disease duration (r = 0.29; P = 0.03). Tissue Doppler-derived transmitral late diastolic velocity (A') showed significant correlation with index of disease activity in the RA patients. CONCLUSIONS: Our results showed that left and right ventricular diastolic function and arterial stiffness were significantly deteriorated in the RA patients comparing with controls. The assessment of left and right ventricular diastolic function, as well as vascular function, should be an essential part of clinical evaluation in the RA patients.

Prognostic relevance of electrocardiographic Tpeak-Tend interval in the general and in the hypertensive population: data from the Pressioni Arteriose Monitorate E Loro Associazioni study.

BACKGROUND: EKG Tpeak-Tend (Tp-Te) interval, an index of transmural dispersion of myocardial repolarization, is gaining interest as possible cardiovascular prognostic variable. Evidence that this is the case in the general population is scanty, however. This was tested in the Pressioni Arteriose Monitorate E Loro Associazioni population. METHODS AND RESULTS: EKG, echocardiographic, office, home and ambulatory (24-h) blood pressure (BP), metabolic and laboratory data were assessed. Cardiovascular and all-cause mortality were evaluated over a mean follow-up of 16 years. Repetition of all measurements after 10 years allowed to evaluate also the risk of developing office and out-of-office hypertension and echocardiographic left ventricular hypertrophy. At baseline, Tp-Te adjusted for confounders (c) showed a significant correlation with office, home and 24-h blood pressure but not with left ventricular mass. The cTp-Te value predicted the risk of cardiovascular and all-cause mortality before and after adjustment for demographic and clinical variables, the increase being 31 and 13% for 1-SD cTp-Te increase, respectively (P < 0.0001 and P < 0.002). This was the case also in hypertensive patients in which the corresponding increase in risk with 1-SD increase of Tp-Te was 47 and 25% (P < 0.05). cTp-Te did not predict the 10-year risk of developing office, home, ambulatory hypertension and left ventricular hypertrophy. CONCLUSION: Tp-Te interval retains an independent prognostic value both in the general population and in its hypertensive fraction. This easily and cheaply obtainable variable may be employed for improving cardiovascular-risk stratification, representing a useful measure to add to the recommended screening in hypertension.