Rates of hypertensive disorders of pregnancy (HDP) have increased in Canada, affecting 5%–10% of pregnancies worldwide.
A study of over 2.8 million births in Canada between 2012 and 2021 showed an increase in HDP, with pre-existing hypertension, gestational hypertension, and preeclampsia all on the rise.
HDP rates were higher in females under 20 and over 34 years old, with variability across provinces and territories.
The rise in HDP may be linked to factors like body mass index (BMI), as rates of overweight and obesity have also increased in Canada.
Despite the rise in HDP, improvements in clinical management are seen in the declining rates of other adverse outcomes, highlighting the need for specialized obstetrical care for high-risk patients.
A recent study published in the Canadian Medical Association Journal reveals that rates of hypertensive disorders of pregnancy (HDP) have been increasing in Canada. HDP includes conditions such as chronic hypertension, gestational hypertension, and preeclampsia, impacting 5%–10% of pregnancies globally and leading to maternal and fetal deaths. The study examined over 2.8 million births in Canadian hospitals between 2012 and 2021, showing a rise in HDP rates from 6.1% to 8.5%, with notable increases in pre-existing hypertension, gestational hypertension, and preeclampsia.
Interestingly, the research also found a correlation between higher rates of overweight or obesity and HDP, suggesting a potential factor contributing to the rise in these conditions. While improvements in managing HDP have been observed, the study highlights the need for enhanced obstetrical care for high-risk patients. Specifically, the study emphasizes the importance of regular blood pressure monitoring during pregnancy, evidence-based treatment, and access to specialized care providers for females with hypertension and related disorders. The findings stress the importance of scaling up team-based maternity care to meet the increasing demands of a population facing more health complications during pregnancy.
