PMID- 26205460 OWN - NLM STAT- MEDLINE DCOM- 20170206 LR - 20170206 IS - 1600-0609 (Electronic) IS - 0902-4441 (Linking) VI - 96 IP - 6 DP - 2016 Jun TI - Neurological symptoms in essential thrombocythemia: impact of JAK2V617F mutation and response to therapy. PG - 593-601 LID - 10.1111/ejh.12638 [doi] AB - Patients with essential thrombocythemia (ET) often suffer from neurological symptoms (NS) not ever resulting from previous thrombotic cerebral events (TCE). We reported NS occurred in 282 patients, in order to identify the factors influencing ET-related NS in the absence of TCE, and the response to therapy. Overall, 116 of 282 patients (41%) presented NS; 101 of them (87%) reported subjective transient and fluctuating NS, without concurrent TCE, which we defined as ET-related NS, by frequency: cephalalgia, chronic paresthesias, dizziness or hypotension, visual disturbances, and tinnitus. In univariate analysis, ET-related NS resulted more frequently in young people (P = 0.017) and in females (P = 0.025). We found a higher prevalence of JAK2V617F mutation in ET-related NS patients (P = 0.021). In multivariate analysis, gender (P = 0.024) and JAK2V617F mutation (P = 0.041) remained significantly associated with the development of ET-related NS, with a risk of about four times higher for JAK2V617F-mutated patients (OR = 3.75). Ninety-seven of 101 patients with ET-related NS received an antiplatelet (AP) agent at the time of NS, whereas only selected high-risk ET-related NS patients were treated with a cytoreductive drug, according to the published guidelines and similarly to patients without NS. We observed that only 32 of 97 (33%) patients with ET-related NS achieved a complete response after AP treatment. Among the 65 non-responder patients, 36 (55.4%) improved NS after the introduction of cytoreductive therapy; therefore, the addition of cytoreductive treatment should be considered in this setting. CI - (c) 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd. FAU - Aroldi, Andrea AU - Aroldi A AD - Hematology Division, San Gerardo Hospital, University of Milano-Bicocca, Monza, Italy. FAU - Cecchetti, Caterina AU - Cecchetti C AD - Hematology Division, San Gerardo Hospital, University of Milano-Bicocca, Monza, Italy. FAU - Colombo, Arianna AU - Colombo A AD - Centro Ricerca Tettamanti, San Gerardo Hospital, University of Milano-Bicocca, Monza, Italy. FAU - Cattaneo, Leonardo AU - Cattaneo L AD - Hematology Division, San Gerardo Hospital, University of Milano-Bicocca, Monza, Italy. FAU - Pioltelli, Pietro Enrico AU - Pioltelli PE AD - Hematology Division, San Gerardo Hospital, University of Milano-Bicocca, Monza, Italy. FAU - Pogliani, Enrico Maria AU - Pogliani EM AD - Dipartimento di Scienze della Salute, University of Milano-Bicocca, Monza, Italy. FAU - Elli, Elena Maria AU - Elli EM AD - Hematology Division, San Gerardo Hospital, University of Milano-Bicocca, Monza, Italy. LA - eng PT - Journal Article DEP - 20150820 PL - England TA - Eur J Haematol JT - European journal of haematology JID - 8703985 RN - 0 (Codon) RN - 0 (Platelet Aggregation Inhibitors) RN - EC 2.7.10.2 (Janus Kinase 2) SB - IM MH - Adult MH - Aged MH - Codon MH - Combined Modality Therapy MH - Female MH - Humans MH - Janus Kinase 2/genetics MH - Male MH - Middle Aged MH - Mutation MH - Nervous System Diseases/*diagnosis/*etiology MH - Platelet Aggregation Inhibitors/therapeutic use MH - Prognosis MH - Risk Factors MH - Thrombocythemia, Essential/*complications/drug therapy/genetics/mortality MH - Treatment Outcome OTO - NOTNLM OT - JAK2V617F mutation OT - essential thrombocythemia OT - myeloproliferative neoplasm OT - neurological symptoms OT - platelets EDAT- 2015/07/25 06:00 MHDA- 2017/02/07 06:00 CRDT- 2015/07/25 06:00 PHST- 2015/07/19 00:00 [accepted] PHST- 2015/07/25 06:00 [entrez] PHST- 2015/07/25 06:00 [pubmed] PHST- 2017/02/07 06:00 [medline] AID - 10.1111/ejh.12638 [doi] PST - ppublish SO - Eur J Haematol. 2016 Jun;96(6):593-601. doi: 10.1111/ejh.12638. Epub 2015 Aug 20.