24
General Principles
3.9. Ionizing Radiation Exposure
COR LOE
Recommendation
1 B-NR
1. In adults with congenital heart disease, processes to limit
radiation exposure during imaging and cardiovascular
procedures are recommended to reduce the lifetime risk for
cancer.
Table 10. Congenital Heart Conditions Considered
Significantly High Risk for Maternal Complications
in Pregnancy*
Congenital Heart Lesions
Severe, symptomatic, le-sided obstructive lesions (mitral stenosis, subaortic and aortic
stenosis)
Severe native coarctation or recoarctation
Cyanotic congenital heart disease or Eisenmenger syndrome
Fontan physiolog y
Systemic right ventricle with at least moderately depressed ventricular function
Other Factors/Conditions
Advanced New York Heart Association class (III or IV)
Prior adverse cardiac event during pregnancy
Pulmonary arterial hypertension
Significantly decreased systemic ventricular dysfunction (ejection fraction <30%)
Aortopathy (diameter >5 cm or associated with connective tissue disorders)
Mechanical heart valves
Refractory ventricular arrhythmias
Adapted from Regitz-Zagrosek et al, by permission of Oxford University Press.
Copyright © 2018 e European Society of Cardiolog y and e European Society of
Hypertension.
* Information adapted from the modified World Health Organization classification system.
