Essential Thrombocythemia in Pregnancy: A Case Report

Essential thrombocythemia is a hematological problem that occurs during pregnancy. Diagnosis of essential thrombocythemia is difficult because it is a diagnosis of exclusion and there is a higher frequency of thrombocythemia due to other causes. A 26-year-old female patient with G1P0000 gestational weeks 30–31 came to the gynecology clinic after laboratory examination with thrombocyte count of 1,128,000 μL. There were no complaints of dizziness, nausea, vomiting, tingling, or fever. She was fatigue with compos mentis consciousness, with blood pressure 110/70 mmHg, heart rate 85 times/minute, respiratory rate 20 times/minute, and temperature 36.5 °C. Head to toe examination was within normal limits. An obstetric status examination was obtained. Fundal height: 3 fingers below the xiphoid process (31 cm, with estimation fetal weight by McD formula 2945 grams) and fetal heart rate 134 times/minute. Blood smear shows leukocytosis and thrombocythemia suspected myeloproliferative disorder (MPD), an essential thrombocythemia. She was tested for the JAK2V617F mutation but no mutation was detected. Doppler ultrasound test shows umbilical artery (RI: 0.69; PI: 0.95; S/D ratio: 2.76) and middle cerebral artery (RI: 0.74; PI: 1.48; S/D ratio 3.88). She was consulted to hematooncologist and was given aspirin 80 mg per day, Cal-95 1 tablet per day, and prenatal vitamins. Evaluation of patients with essential thrombocythemia includes a complete blood count, bone marrow biopsy, and genetic testing to evaluate gene mutations to obtain the appropriate diagnosis and therapy to prevent from its complication such as thrombosis during pregnancy, bleeding during pregnancy, gestational hypertension, preeclampsia, eclampsia, prematurity, placental abruption, intrauterine growth retardation and stillbirth.