Table I.

Key laboratory parameters on follow up in IgG4-related acquired hemophilia.

Follow-up	CRP (mg/l)	ESR (mm/h)	IgG (g/l)	IgG4 (g/l)	APTT (sec)	FVIII (%)	FVIII inhibitor (BU/ml)
Normal range	0–8	0–20	7.51–15.6	0.03–2.01	25.1–36.5	50–150	0–0.6
Nov 2014	<2.5	66	21.40	>4.030	120.0	0.5	27.2
Dec 2014	<2.5	8	14.80	>4.030	31.7	50.0	8.0
Mar 2015	<2.5	6	12.0	>4.040	30.0	70.8	<0.6

CRP, C-reactive protein; ESR, erythrocyte sedimentation rate; IgG, immunoglobulin; APTT, activated partial thromboplastin time; FVIII, factor VIII.