AimsTo evaluate the clinical, biohumoral, and haemodynamic effects of ultrafiltration vs. intravenous diuretics in patients with decompensated heart failure (HF). Signs and symptoms of volume overload are often present in these patients and standard therapy consists primarily of intravenous diuretics. Increasing evidence suggests that ultrafiltration can be an effective alternative treatment.
Methods and resultsThirty patients with decompensated HF were randomly assigned to diuretics or ultrafiltration. Haemodynamic variables, including several novel parameters indicating the overall performance of the cardiovascular system, were continuously assessed with the Pressure Recording Analytical Method before, during, at the end of treatment (EoT) and 36 h after completing treatment. Aldosterone and N-terminal pro-B-type natriuretic peptide (NT-proBNP) plasma levels were also measured. Patients treated with ultrafiltration had a more pronounced reduction in signs and symptoms of HF at EoT compared with baseline, and a significant decrease in plasma aldosterone (0.24 + 0.25 vs. 0.86 + 1.04 nmol/L; P , 0.001) and NT-proBNP levels (2823 + 2474 vs. 5063 + 3811 ng/L; P , 0.001) compared with the diuretic group. The ultrafiltration group showed a significant improvement (% of baseline) in a number of haemodynamic parameters, including stroke volume index (114.0 + 11.7%; P , 0.001), cardiac index (123.0 + 20.8%; P , 0.001), cardiac power output (114.0 + 13.8%; P , 0.001), dP/dt max (129.5 + 19.9%; P , 0.001), and cardiac cycle efficiency (0.24 + 0.54 vs. 20.14 + 0.50 units; P , 0.05), and a significant reduction in systemic vascular resistance 36 h after the treatment (88.0 + 10.9%; P , 0.001), which was not observed in the diuretic group.
ConclusionsIn patients with advanced HF, ultrafiltration facilitates a greater clinical improvement compared with diuretic infusion by ameliorating haemodynamics (assessed using a minimally invasive methodology) without a marked increase in aldosterone or NT-proBNP levels.--
To explore pregnant women's use, attitudes, knowledge and beliefs of complementary and alternative drugs (CADs) defined as products manufactured from herbs or with a natural origin. A preliminary survey was conducted among 172 pregnant women in their third trimester of pregnancy, consecutively recruited in two obstetrical settings; 15 women were randomly selected to compute a test-to-retest analysis. Response rate was 87.2%. Test-to-retest analysis showed a questionnaire's reproducibility exceeding a K-value of 0.7 for all items. Mean age was 32.4 ± 0.4 years; most women were nulliparae (62.7%). The majority of subjects (68%) declared to have used one or more CADs during their lifetime; 48% of pregnant women reported taking at least one CAD previously and during the current pregnancy. Women's habitual use of CADs meant they were at higher risk of taking CADs also during pregnancy (adjusted odds ratio = 10.8; 95% confidence interval: 4.7–25.0). Moreover, 59.1% of the subjects were unable to correctly identify the type of CADs they were using. The majority of women resorted to gynecologists as the primary information source for CADs during pregnancy, while they mainly referred to herbalists when not pregnant. Habitual use of CADs seems to be a strong predictor for their ingestion also during pregnancy; in addition most subjects were unable to correctly identify the products they were taking. In the light of the scanty data concerning the safety of CADs during pregnancy, these preliminary results confirm the need to investigate thoroughly the situation of pregnant women and CADs consumption.
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