“…Women with pre-existing hypertension or cardiac disease, a history of significant obstetrical-induced hypertension, or a history of fetal or neonatal congenital heart disease require important pre-conception counselling related to the maternal and fetal risks in a subsequent pregnancy (Table 1). [1][2][3][4][5][6][7][8] Clapp and Bernstein summarize the pre-conception counselling approach for women with cardiac disease that uses risk stratification and pre-pregnancy optimization (workup, medication exposures, genetics). 1 According to the Public Health Agency of Canada, 9 6% of pregnancies are complicated by hypertension, roughly evenly split between chronic hypertension and gestational hypertension or preeclampsia.…”