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Multicenter Study
. 2020 Jul;50(1):151-156.
doi: 10.1007/s11239-019-01978-8.

Factors associated with pregnancy outcomes in women with a history of cerebral sinus venous thrombosis

Amihai Rottenstreich #  1 , Harel Gershgoren #  2 , Galia Spectre  3   4 , Nael Da'as  5 , Ohad S Bentur  4   6 , Gabriel Levin  1 , Yosef Kalish  7
Affiliations
Multicenter Study

Factors associated with pregnancy outcomes in women with a history of cerebral sinus venous thrombosis

Amihai Rottenstreich et al. J Thromb Thrombolysis. 2020 Jul.

Abstract

To collect and summarize pregnancy outcomes among women with a history of cerebral sinus vein thrombosis (CSVT). A retrospective multicenter case-control study. The study group comprised all women diagnosed with CSVT during 2004-2018 at four university hospitals, and with follow-up data of pregnancy. A control group of women with a singleton pregnancy was established by matching, four-to-one, according to maternal age. The data of 74 pregnancies of 65 women with CSVT were analyzed. The median time-to-pregnancy interval from the CSVT was 4.2 [2.7-6.8] years. Anticoagulation therapy in the form of enoxaparin was administered in 68 (91.9%) pregnancies. Adjunctive low-dose aspirin was used throughout 12 (16.2%) pregnancies. Overall, 54 (73.0%) of the pregnancies ended in live births and 20 (27.0%) in miscarriage. The use of anticoagulation therapy during pregnancy was positively associated with live birth outcome (P < 0.001). Late adverse outcomes were encountered in 19 (25.7%) pregnancies, including the delivery of a small for gestational age infant (n = 12), gestational hypertensive disorders (n = 6) and placental abruption (n = 3). The use of adjunctive aspirin was associated with a lower rate of late adverse pregnancy outcomes (P = 0.03). No recurrent CSVT, thrombosis at other sites, and major bleeding episodes were observed during pregnancy. Live-birth rate was higher (P = 0.007) and the rate of late adverse outcome was lower (P = 0.01) for the control (n = 296) than the study group. Among pregnant women with a prior CSVT, no recurrent thrombosis events were observed during gestation. The use of prophylactic anticoagulation was associated with live birth. The use of adjunctive aspirin should be further studied in this setting, as its utilization correlated with a lower rate of late pregnancy complications.

Keywords: Anticoagulation; Antithrombotic therapy; Cerebral sinus venous thrombosis; Outcomes; Pregnancy.

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