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.--
Cardiovascular mortality in patients with AICM did not differ from that of a matched IDCM cohort, despite cancer-related morbidity and less prevalent use of devices. These data suggest that patients with AICM should be treated with appropriate guideline-directed medical therapies similar to other non-ischaemic dilated cardiomyopathies.
Evidence-based treatment has led to dramatic improvement in the prognosis of idiopathic dilated cardiomyopathy during the past 3 decades. The benefits of controlled randomized trials can be replicated in the real world, emphasizing the importance of tailored follow-up and long-term continuity of care.
SUMMARYThe correlation between intracavitary thrombosis detected by cross sectional echocardiography and systemic embolism was studied in 126 consecutive patients with idiopathic dilated cardiomyopathy who were examined from January 1980 to September 1987. A total of 1041 serial echocardiograms were obtained with 3-5 and 5 MHz transducers. The mean follow up period was 41-2 months. The survival rate was 88% at two years and 56% at five years. Echocardiography showed intracavitary thrombi in 14 (I 1 v1 %) patients; 13 were mural and 11 were localised at the apex of the left ventricle. Twelve patients (8-4%) had systemic emboli; this corresponded to an incidence ofnew embolic events of 1-4 for 100 patient-years. Patients with intracavitary thrombi or systemic emboli were treated with oral anticoagulants, as were nine in functional class IV of the New York Heart Association, for 61 patient-years. The cumulative observation period for the whole population study was 418 patient-years. None of the patients with intracavitary thrombosis had embolic complications and none of those with embolism had intracavitary thrombi. Rates of intracavitary thrombosis and systemic embolism in this series were low and there was no overlap between the two events. This may have been because the patients did not have severe dilated cardiomyopathy, because echocardiography did not detect all the thrombi, or because patients were treated with oral anticoagulants.The presence of intracardiac thrombosis detected by cross sectional echocardiography is not predictive of systemic embolism in patients with idiopathic dilated cardiomyopathy. Criteria for the use of the anticoagulant treatment remain largely empirical in these cases.
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