Table 3.

 Extensive overview of complications during pregnancy

	Patient number
	1	2	2	3	4	5
Pregnancy	1	1	4	1	1	2
Total pregnancies	1	4	4	2	1	2
Arrhythmia*
Type	VT	SVT	VT	SVT	SVT	VT
Time of occurrence	Tr1, Tr2	Tr2	End of Tr1	Tr3	Shortly after delivery	After delivery
Treatment	None	ECV	Metoprolol	Digitalis	Sotalol	Calcium antagonist
Heart failure	No	No	No	Yes	Yes	No
Time of occurrence	NA	NA	NA	Tr3	Tr3	NA
Treatment	NA	NA	NA	Diuretics	Diuretics	NA
Valve disease (right sided)	Mild PR, mild TR, mild PS	Mild TR, mild PS		Severe PR, mild PS	Severe PR, mild PS	Mild PR, mild PS
RV function	Reasonable	Normal		Not known	Normal in Tr1, reasonable in Tr2	Normal
RV systolic pressure	Increased (45 mm Hg)	Increased (85 mm Hg)		Not known†	Not known	Not increased
QRS duration (ms)	140	120		160	146	130
NYHA class decline	No	No	No	Yes‡	Yes§	No
Child small for gestational age	No	Yes	Yes	No	Yes	No

*Arrhythmias were scored only if the rhythm disorder was symptomatic and registered on the ECG or if treatment was necessary; †during her second pregnancy RV systolic pressure was increased (65 mm Hg); ‡NYHA class III during third trimester, II after pregnancy; §NYHA class III during third trimester, I after pregnancy.

ECV, electrocardioversion; PS, pulmonary stenosis; PR, pulmonary regurgitation; SVT, supraventricular tachycardia; Tr, trimester; TR, tricuspid regurgitation; VT, ventricular tachycardia.