CONCLUSION: In this first study reporting UPE drainage risk factors, all large UPE required drainage even when extra-renal epuration intensification or medical treatment were tried. This suggests that large UPE should be drained without delay. For small and moderate UPE, size of effusion on echocardiography does not predict drainage requirement but serum albumin level does.
PMID: 24840780 [PubMed - as supplied by publisher] (Source: Journal of Nephrology)