Tratamiento de la Trombocitemia Esencial en Menores de 60 Años sin Antecedentes de Trombosis, Estado JAK2 No Mutado, y Factores de Riesgo Cardiovascular o Mutación CALR-1/MPL
Este protocolo aborda un subgrupo específico de trombocitemia esencial: pacientes de 60 años o menores, sin antecedentes de trombosis y con estado mutacional JAK2 no mutado, que además presentan factores de riesgo cardiovascular o portan una mutación conductora CALR-1 o MPL. Esta combinación define un nivel particular de riesgo de trombosis que orienta el enfoque de manejo.
El riesgo de trombosis en el estado mutacional conductor triple negativo por sí solo se considera demasiado bajo para requerir tratamiento — es la presencia de factores de riesgo cardiovascular o una mutación CALR-1/MPL lo que activa el enfoque de manejo descrito aquí.
References
DOI: 10.1002/ajh.27216
Figure 5 outlines our general treatment approach in ET, which starts with thrombosis risk stratification: very low (age ≤60 years, no thrombosis history, JAK2 wild-type), low (same as very low but JAK2 mutation present), intermediate (age >60 years, no thrombosis history, JAK2 wild-type), and high (thrombosis history present or age >60 years with JAK2 mutation).
Thrombosis risk in very low risk patients with triple-negative driver mutational status is too low to warrant the need for any form of therapy, but once-daily aspirin therapy is advised in the presence of either CV risk factors or CALR-1/MPL mutations.
Very low-risk patients with ET might not require any therapy, unless in the presence of CV risk factors or CALR-1/MPL mutations, where once-daily low-dose aspirin is advised (Figure 5).
Low-dose aspirin therapy has also been shown to be effective in alleviating vasomotor (microvascular) disturbances associated with ET or PV.
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