Acute Promyelocytic Leukemia during Pregnancy: A Systematic Review of the Literature.

The management of pregnant women with acute promyelocytic leukemia (APL) is a challenging situation where limited evidence-based information is available. We performed a systematic literature review to analyze the outcomes reported for both mother and fetus when APL is diagnosed during pregnancy. PubMed, Scopus and Web of Science databases were systematically searched to identify studies reporting cases of APL during pregnancy. Sixty-six articles met the eligibility criteria (53 single case reports). Ninety-two patients were eligible for induction therapy, with most them being treated with all-trans retinoic acid alone (32%) or combined with chemotherapy (43%), while the remaining patients received chemotherapy alone. Three patients were treated with arsenic-based regimens after delivery. Overall complete remission rate was 89%, with no statistically significant differences according to the type of induction and gestational age. During the first trimester, women were more likely to experience spontaneous and induced abortion compared to those during the second trimester (88% vs. 30%) (p < 0.0001), while only one patient diagnosed during the third trimester terminated in stillbirth. Twelve of 16 infants with neonatal complications had respiratory distress syndrome. Except two early deaths (Potter’s syndrome and pulmonary hemorrhage), all neonates evolved favorably. This study confirms that gestational age does not affect the results in the mother, but is closely related to fetal viability. Our results may be useful for the process of decision making that requires the involvement of the patient, hematologist, obstetrician and neonatologist.