Pregnancy in the FONTAN palliation: physiology, management and new insights from bioengineering

Table 2 Proposed risk stratification model for pregnant women with Fontan circulation. Women were classified into lower, intermediate and very high risk. Women were allocated to “intermediate” or “very high risk” groups based on achieving> = 1 criteria for that group. Adapted from [19]

	Lower risk	Intermediate risk	Very high risk
NYHA class	I	II	III-IV
Sa02%	≥94%	90–93%	< 90%
mVO_{2 (ml/kg/min)}	> 60%	50–60%	< 50%
Systemic ventricular function impairment	none	mild	Moderate/severe
AVVR	none/mild	moderate	Severe
Fontan related complications	none	none	At least one
Failing Fontan	no	no	Yes

AVVR Atrioventricular valve regurgitation, mVO2 Maximal oxygen uptake, NYHA New York Heart Association, SaO2 Oxygen saturations

ISSN: 2056-7251