“…Nevertheless, consideraton of data reported in the literature (Olesen, 1955;Wood, 1956;Rowe et al, 1960) and our own observations relating to the natural history of rheumatic heart disease have led us to believe that pregnancy, if appropriately managed and survived, does not accelerate the course of rheumatic heart disease, save perhaps in exceptional cases. This is also the view of several other workers (Miller andMetcalfe, 1956 Burwell, 1958 ;Gorenberg and Clhesley, 1958).…”