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.
Reference:
Regitz-Zagrosek V, et al. 2022 ESC Guidelines for the management of cardiovascular diseases during pregnancy. Eur Heart J. 2023;44:3846–3944. doi:10.1093/eurheartj/ehac244
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