Background
Little information exists regarding the prevalence and natural history of pericardial disease in patients with leukemia. Recently, it has been reported that the use of histone deacytelase inhibitors (HDACi) is associated with an increased incidence of pericardial effusions (PEfs). To study the characteristics and treatment relationships of PEfs in patients with leukemia, we retrospectively analyzed a cohort of patients with leukemia evaluated at a single center.
Methods
We reviewed 2592 patients with acute myeloid leukemia (AML, N= 1282, 49%), acute lymphocytic leukemia (ALL, N= 336, 13%), or myelodysplastic syndrome (MDS, N=974, 38%), who were evaluated from 8/2003 to 7/2008. Electronic medical records were reviewed to select patients that had underwent at least one echocardiographic evaluation. Data regarding diagnosis, timing, effusion size, survival, and prior therapy was collected in the patients that had echocardiographic evidence of PEfs.
Results
PEfs were detected in 325 (20%) of the patients who had echocardiograms: 21% in AML, 23% in ALL, and 18% in MDS patients. Only a small portion of PEfs were detected prior to the initiation of therapy: 26% in AML, 25% ALL, and 15% in MDS. Most PEfs were of minimal size (70%) overall. No significant differences in effusion characteristics, including severity, were observed among different types of therapies. The presence of PEfs had no impact on the survival of patients evaluated.
Conclusions
PEfs are relatively common in patients with leukemia and do not appear to be related to specific types of therapy or to survival.