Yes, the virus associated with pyrrorhea can effect the heart by pericarditis (inflammation of the lining of the heart). Also, the heart valves can be effected and probably the heart muscle.
i am 25 and just got out of the hospital because of viral infection that attacted my heart and caused pericarditis, and weakend the muscle which droped my heart infraction down to 30% after a month of treatment i have made a complete recovery my heart infraction is 66% now and my heart looks good.