Cardio-oncology & otherCohort study

Pregnancy outcomes in women with a history of myocarditis

Am Heart JPublished

  • retrospective study

Authors' conclusion

Most women with prior myocarditis do not develop adverse cardiac events. However, echocardiographic surveillance during pregnancy may still be helpful to identify decreases in LV systolic function.

Study context

Population
Pregnant women with prior history of myocarditis/perimyocarditis followed in a CardioObstetrics Program (1998–2025)women, 36 pregnancies
Participants
27 women

Main finding

As reported in the abstract

Adverse maternal cardiac events:
  • Maternal death
  • Heart failure
  • Sustained arrhythmia

No adverse maternal cardiac events, pregnancies

97% (35/36)

Developed heart failure (moderately reduced left ventricular (LV) systolic function during myocarditis, recovered prior to pregnancy)

One patient

Observational data: associations, not effects.

Further findings

Maternal or fetal deaths

There were no maternal or fetal deaths

Premature delivery (31-36 weeks)

Pregnancies with premature delivery
Thirteen percent

Baseline characteristics

Mean age
33 ± 4.9 years
Median interval between myocarditis and pregnancy
5.0 years
Moderate/severe LV systolic dysfunction at myocarditis presentation, cases
50%
Full recovery of LV systolic function prior to pregnancy, among pregnancies with significant LV dysfunction at myocarditis presentation
83%,15/18

Reduction in LV systolic function in pregnancy (mild/normal to moderate/severely reduced)

Patients with reduction in LV systolic function
Two

Original publication

Pregnancy outcomes in women with a history of myocarditis. Am Heart J. Published 7 August 2026. doi:10.1016/j.ahj.2026.107547

Summarised from the published abstract; every number is checked against it