Effect of restoring sinus rhythm in hypertensive patients with atrial fibrillation undergoing electrical cardioversion.

INTRODUCTION: Little is known about the effects of atrial fibrillation (AF) on blood pressure (BP) levels in hypertensive patients. Some studies suggest a role for rhythm control in managing such patients' BP, but the improvement observed in cardiac performance after restoring sinus rhythm (SR) may coincide with an increase in BP. The aim of this study was to apply ambulatory BP monitoring to analyze BP changes in hypertensive patients after electrical cardioversion for persistent AF. METHODS AND RESULTS: The study included 54 hypertensive patients with persistent AF. Ambulatory BP monitoring was performed on the day before electrical cardioversion and again about a month later under conditions of stable medical treatment.Patients with a SR at follow-up (n=34) had significantly higher 24-h, night-time (P<0.05), and daytime (P=0.074) systolic BP, and significantly lower 24-h, daytime (P<0.05), and night-time (P=0.078) DBP. The number of patients with nocturnal dipping decreased from 20 to 14 and the number of those with reverse dipping increased from 1 to 7. Patients with recurrent AF at follow-up (n=20) showed no significant BP changes, except for a decrease in the mean night-time DBP. CONCLUSION: Restoring SR in hypertensive patients with AF led to a significant increase in their systolic BP (especially at night) and a decrease in their DBP. Hypertensive patients with AF should consequently undergo ambulatory BP monitoring after electrical cardioversion for the purpose of adjusting their antihypertensive treatment.

Long-term glucocorticoid effect on bone mineral density in patients with congenital adrenal hyperplasia due to 21-hydroxylase deficiency.

INTRODUCTION: Patients with 21-hydroxylase deficiency (21OHD) assume a lifelong glucocorticoid (GC) therapy. Excessive GC treatment increases the risk of osteoporosis and bone fractures, even though the role of substitutive therapy is not fully established: we analyzed the effect of GC dose on bone metabolism and bone mineral density (BMD) over time in patients with 21OHD. METHODS: We studied bone metabolism markers and BMD in 38 adult patients with 21OHD (19-47 years, 24 females and 14 males) and 38 matched healthy control. In 15 patients, BMD data were available at both baseline and after a long-term follow-up. RESULTS: BMD was lower in patients than in controls at lumbar spine (0.961±0.1g/cm(2) vs 1.02±0.113g/cm(2), P=0.014) and femur neck (0.736±0.128g/cm(2) vs 0.828±0.103g/cm(2), P=0.02); otherwise, after height correction, only femoral neck BMD was lower in patients (0.458±0.081g/cm(2) vs 0.498±0.063g/cm(2), P=0.028). In those 21OHD subjects with at least 10 years follow-up, we observed an increase in lumbar BMD (P=0.0429) and a decrease in femur neck BMD values (P=0.004). Cumulative GC dose was not related to bone metabolism or BMD. No patient experienced clinical fragility fractures. CONCLUSIONS: BMD values are decreased in patients with 21OHD, which are in part explained by decreased height, but not by the dose of glucocorticoids. Nevertheless, bone status should be carefully monitored in patients with 21OHD.

Short- and longer-term predictive capacity of the Multidimensional Prognostic Index: The timing of the assessment is of no consequence.

BACKGROUND: Several studies have tested the ability of the Multidimensional Prognostic Index (MPI) to predict mortality for acute elderly patients admitted to hospital. We compared the reliability of MPI scores obtained both on admission to, and at discharge from hospital. We tested MPI performance in predicting short- and longer-term mortality grouped into three risk groups and according to single MPI scores. METHODS: A longitudinal prospective study was conducted on 699 elderly patients admitted to the Geriatric Unit at Padua General Hospital. MPI scores were obtained on admission and at discharge. In-hospital and one-year mortality was recorded. Adjusted Cox's regression models were used to assess the prognostic value of the MPI scores. RESULTS: 691 were included in the study: 459 (66.4%) women and 232 (33.6%) men, mean age=85.2 ± 7.0 years. Patients were grouped as: low risk MPI 12.5%; moderate risk MPI 28.6%; severe risk MPI 58.9%. The cumulative in-hospital mortality rate was 7.4%. In the adjusted model, only MPI score (not MPI risk group) was significantly associated with in-hospital death ([HR]=1.22, 95%CI 1.07-1.39). 1-Year crude mortality rate: 39.2%. The patients' MPI scores at admission and at discharge were equally predictive of death (adjusted HR of MPI on admission 1.20 [1.15-1.27], p<0.0001; at discharge 1.24 [1.18-1.30], p<0.0001). The performance (AUC) of the MPI score on admission and at discharge proved much the same. CONCLUSIONS: This study confirmed the value of the MPI in predicting mortality for acute elderly patients. Grouping MPI scores into risk levels may not be appropriate when applied to hospitalized acute geriatric patients. The prognostic value of MPI scores was confirmed only for MPI value ≥0.68. Judging from our study, the timing of the assessment during a patient's hospital stay (on admission or at discharge) may be irrelevant for longer-term prognostic purposes.

Reliability of Oscillometric Blood Pressure Monitoring in Atrial Fibrillation Patients Admitted for Electric Cardioversion.

The reliability of automated oscillometric blood pressure (BP) monitors in atrial fibrillation (AF) has been poorly investigated, only comparing different patients with AF and sinus rhythm (SR), and is a method influenced by individual characteristics. This study compared the reliability of the oscillometric device A&D TM-2430 (A&D Company, Tokyo, Japan) with that of a mercury sphygmomanometer in AF patients whose SR was restored after electric cardioversion (ECV). Three consecutive BP measurements were obtained on the day before and about 30 days after ECV in stable treatment conditions. Of the 100 patients studied, 63 reported an SR at follow-up, with a significant increase in systolic BP and a significant decrease in diastolic BP according to both devices. There were no significant differences between the systolic and diastolic biases before and after ECV using Bland Altman analysis (P > .05 each). The oscillometric device analyzed, using three repeated measurements, is reliable in measuring BP in AF patients.