<s>[INST] I am 36 weeks pregnant and I was diagnosed with incomplete RBBB 3 yrs ago and have isolated PVC's as well. they did echo and stress test and my cardiologist cleared me because they were negative. I am experiencing PVC's once in a while esp. when I am tired or stressed. I am worried that when I go on labor and experience pain I'll have more PVC's. I experience them when I'm stressed or in pain. Should an epidural be safe with me even if  I have RBBB? should I be worried with labor and my condition? Thanks! [/INST] Hello,I have gone through your query .Thanks for using HCM.you have tendency for benign extra  systoles as echo and stress test were normal so you should not worry.again with same reason RBBB is non specific .epidural is quite safe for you.so don't keep undue stress My best wishesDr.Rajesh Teli,MD. </s>