Which condition is associated with mWHO Risk Class IV?

mWHO Risk Class IV encompasses conditions that pose a significant risk to patients regarding morbidity or mortality, especially during pregnancy. In this class, pregnancy is considered contraindicated due to the likelihood of severe complications for both the mother and fetus. Women in this category often have serious heart diseases, such as severe pulmonary hypertension, Eisenmenger syndrome, or significant left heart obstructive lesions. These conditions are associated with high mortality rates during pregnancy and require careful management.

The other options represent conditions that, while serious, do not necessarily carry the higher risk associated with pregnancy. For example, aortic dilation, while potentially serious, may not automatically indicate that pregnancy is contraindicated if the dilation is monitored and remains stable. Repaired coarctation without residua typically carries a lower risk for pregnancy after successful surgical correction. Moderate mitral valve stenosis can often be managed and may not pose the same level of risk as Class IV conditions. Thus, when considering the safety of pregnancy, it becomes clear that a condition classified as Class IV indicates that pregnancy is contraindicated, making this the correct answer.