Perinatal outcome for pregnancies complicated with thrombocytopenia

Abstract

Introduction: Thrombocytopenia affects about 10% of all pregnancies. Preeclampsia/HELLP syndrome induced thrombocytopenia may associate perinatal morbidity, preterm delivery, or low-birth-weight newborns. Objective: To assess perinatal outcome and complications of pregnancy in women presenting with thrombocytopenia. Methods: We retrospectively analyzed 936 consecutive pregnant women admitted during a 6-month period. Results: Incidence of thrombocytopenia in pregnancy was 11.11% (104/936). Thrombocytopenia represented a risk factor for premature delivery – highest risk for severe thrombocytopenia (RR = 8.69, p < 0.01). Thrombocytopenic preeclampsia or HELLP syndrome associated the highest rates of prematurity (RR = 7.97, p = 0.00, respectively 12.32). Thrombocytopenia also represented a risk factor for low-birth-weight newborns, especially severe thrombocytopenia – 2047.50 ± 938.98 g (p = 0.02) versus 3224.86 ± 496.00 g in controls. Again, thrombocytopenic preeclampsia was significantly associated with low-birth-weight newborns (RR = 11.94, p = 0.00), with medium weight of 2462.05 ± 794.54 g versus 2932.37 ± 708.91 g in thrombocytopenic pregnancies, respectively 3224.86 ± 496.00 g (p = 0.00) in normal pregnancies. Conclusions: Thrombocytopenia in pregnancy was associated with perinatal morbidity, with the strongest association for preeclampsia and HELLP syndrome – for both prematurity and low-birth-weight: the lower the platelet count, the higher the risks for the fetus/newborn. Therefore, we strongly recommend close surveillance of thrombocytopenic mothers and their babies, in order to establish the etiology and the best moment for intervention.

Keywords::

• HELLP syndrome
• low birth weight
• morbidity
• prematurity
• preeclampsia

Declaration of Interest: The authors report no conflicts of interest and deny any affiliations that could wrongly influence the results of this study.