mWHO Maternal Cardiovascular Risk Calculator

mWHO Classification of Maternal Cardiovascular Risk (2022 ESC): Explanation and Clinical Context The mWHO classification stratifies women with pre-existing cardiovascular disease according to the risk of maternal mortality and morbidity during pregnancy. It is a widely accepted tool in cardiology and obstetrics for counseling, planning, and monitoring pregnant women with cardiac conditions. - mWHO I indicates no detectable increased risk, typically seen in women with minor lesions or repaired simple congenital defects. - mWHO II represents a small increase in risk, including women with mild systemic ventricular impairment or repaired valve lesions. - mWHO II-III is an intermediate risk category, where individualized assessment and close monitoring are required. - mWHO III denotes a significantly increased risk, such as women with moderate-severe valve disease or systemic right ventricle, requiring multidisciplinary care. - mWHO IV indicates extremely high risk, including severe pulmonary hypertension or severe systemic ventricular dysfunction, and pregnancy is contraindicated.