What is the actual risk of vasculitis with hydralazine aka #HydrANCAzine?

Ottawa colleagues say ~ 20% higher risk vs RASi but overall very low absolute risk

https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2846501 in JNO

@hswapnil hydralazine-use is not very common in germany. I guess this is why I know this entitiy exists but I haven’t seen one case in my career so far.