This talks about Villitis of unknown etiology (VUE) which I guess becomes Chronic Villitis of unknown etiology (CVUE) if you have it for life rather than as a result of an acute condition? It describes how this more common condition can affect 5-15% of pregnancies and, as you’d expect from those sort of numbers, isn’t as severe as CHI. It compares VUE to infectious villitis. It talks about anecdotally effective treatment through progesterone, corticosteroids, low-dose heparin, and intravenous immunoglobulin (IVIG).
Villitis of unknown etiology – noninfectious chronic villitis in the placenta: Raymond W. Redline MD