Thrombotic incidents in patients with myelofibrosis suggest to be independent of JAK2 V617f mutational status.
Folia medica(2022)
摘要
INTRODUCTION:Myelofibrosis (MF) belongs to a group of conditions known as Philadelphia-negative myeloproliferative neoplasms (MPN). Bleeding or various vascular complications could be the main causes of morbidity and mortality in patients with MF. MPNrelated thrombosis is a multifactorial process and in the case of myelofibrosis, little is known. The risk factors for thrombotic complications in MF have been rarely assessed.
AIM:The purpose of this study was to investigate the incidence of thrombotic events in MF and the role of JAK2 V617F mutation as a risk factor for thrombotic incidents in patients with MF.
MATERIALS AND METHODS:In our study of 37 patients, 35% had thrombotic events in the past. All patients were admitted to the Clinic of Hematology, St Ivan Rilski University Hospital, Sofia, Bulgaria between 2016 and 2019 and diagnosed based on the WHO criteria of 2016.
RESULTS:The majority of patients (23, 62%) proved positive for JAK2 (Janus kinase) V617F mutation carrying one (16, 70%) or two (7, 30%) mutated alleles. Thirteen of the patients (35%) had a thrombotic event in the past and 9 of them (69%) were carriers of JAK2 V617F mutation. Fourteen patients of those without thrombotic history (24, 58%) were also carriers of JAK2 V617F mutation.
CONCLUSIONS:As a whole, we did not find a statistically significant difference between JAK2 V617F mutation and the frequency of thrombotic events. Rendering an account to the possible life-threatening complications, treatment decisions should be undertaken upon possible antithrombotic prevention in MF.
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关键词
JAK2 mutation,myelofibrosis (MF),risk factor,thrombotic incidents
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