Abstract
Posterior reversible encephalopathy syndrome (PRES) is a clinico-radiologic entity. Its management and outcome in the oncology population is limited because it is still difficult to identify despite an increasingly recognized occurrence. This is the largest retrospective study of PRES in cancer patients reported from a single institution. We explore the clinical manifestations and radiologic features to comprehensively assess PRES in order to prevent permanent neurologic deficits and mortality. We retrospectively identified 69 patients with cancer who developed PRES at MDACC between 01/2006 to 06/2012. Clinical and radiographic data were abstracted from their records and reviewed for our analysis. Mean age at PRES onset was 52 ± 17.8 years. Fifty-two (75 %; p < 0.001) patients were women. Most common diagnoses were leukemia (30 %) and lymphoma (12 %). Forty-eight (70 %) patients were treated with chemotherapy, 21 (30 %) bone marrow transplant and 14 (20 %) tacrolimus. Most common clinical presentation was seizures (67 %). PRES was associated with hypertension in 62 (90 %) patients. On brain MRI, 33 (44 %) patients had some evidence of hemorrhage, 22 (73 %) of these were thrombocytopenic. Thirty-five (51 %) patients fully recovered and 19 (28 %) had permanent neurological deficits. Morbidity and mortality were associated with continuation with offending agent, thrombocytopenia, variations in mean arterial pressure ≥20 mmHg, electrographic seizures at onset, atypical MRI pattern and delay in diagnostic imaging (7.4 ± 4.8 days vs. 1.9 ± 1.8 days; p = 0.031) as half of them did not receive a prompt intervention. Special attention should be given to patients who present with high-risk factors in order to prevent development of PRES or decrease patient morbidity and mortality. Management of PRES should be guided by the radiographic findings. Overall, early recognition, discontinuation of the offending agents, correction of thrombocytopenia and blood pressure control are still the main strategies to manage PRES.
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The authors thank Jill Delsigne PhD for her assistance with English language and scientific terms.
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Kamiya-Matsuoka, C., Paker, A.M., Chi, L. et al. Posterior reversible encephalopathy syndrome in cancer patients: a single institution retrospective study. J Neurooncol 128, 75–84 (2016). https://doi.org/10.1007/s11060-016-2078-0
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DOI: https://doi.org/10.1007/s11060-016-2078-0