Hyperuricaemia in patients with right or left heart failure

Based on the clinical observation that patients with right or left heart failure often present with hyperuricaemia, the relation between serum urate values and haemodynamic variables was studied in patients with primary pulmonary hypertension (PPH) as well as in patients with advanced ischaemic heart disease or dilated cardiomyopathy. The study was a retrospective analysis of 39 patients with PPH and 36 patients with left heart disease, examining serum urate levels in association with haemodynamic variables. Elevated urate concentrations were found in 79% of the PPH patients. There was no association between serum urate levels and mean pulmonary artery pressures, but a significant correlation was found between urate levels and the cardiac index (r=0.48; p=0.0021) and an even stronger correlation between serum urate levels and mean right atrial pressures (r=0.83; p<0.0001). A similar association was found in a subgroup of 21 PPH patients not receiving diuretics. In 36 patients with ischaemic heart disease or dilated cardiomyopathy, hyperuricaemia was present in 78% and was significantly associated with elevated right atrial pressures (r=0.40; p=0.031) and even more so with elevated left atrial pressures (r=0.55; p=0.0005) but not with the cardiac index (r=0.034; p=0.86). The data show that hyperuricaemia in patients with cardiac dysfunction is closely related to elevated right or left atrial filling pressures.

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