Table 1.

Complement profiles in patients. The diagnosis of patient 1 was reviewed two years after the fourth pregnancy. Complement was quantified for patient 1 at 30 and 34 weeks of gestation (W) and 15 months after the pregnancy (M15) and for patient 2 at 29 weeks and 33 weeks of gestation and 2 months after the pregnancy (M2). Plasma concentrations of C1 inhibitor (C1 inh), C4, and C3 were determined by nephelemetry (Dade Behring). Normal values ranged between 170 and 540 mg/L for C1-inhibitor (C1 Inh), 93 and 380 mg/L for C4, and 660 and 1250 mg/L (±2 SD) for C3. CH50 were determined according to standard procedures. Results are expressed as percent of the CH50 of the reference plasma pool (obtained from one hundred healthy blood donors). C1-inhibitor function (C1 inh fx) was assessed in a chromogenic assay (Technochrom, Biolys, Taluyers, France).

			Patient 1			Patient 2
		Units	30 w	34 w	M15	29 w	33 w	M2
CH50	70–130	%	155	144	131	114	120	107
C3	660–1250	mg/L	1470	1200	989	1270	1310	926
C4	93–380	mg/L	425	352	320	215	257	214
C1 Inh	170–540	mg/L	202	186	239	148	161	190
C1 inh fx	70–130	%	33	25	101	33	35	84