Background: In the past, cardiac surgical procedures during pregnancy have been associated with a high risk of adverse maternal and fetal outcomes. Therefore, this meta-analysis of more recent studies was done to assess the fetomaternal risk after cardiac operations during pregnancy using cardiopulmonary bypass.
Methods: The MEDLINE, Embase, and Cochrane library were searched to find studies from January 1, 1990, to July 31, 2016, without language restriction.