Answer by
MedStudent01 (1131)
In very healthy people a RBBB and LAFB may have a good prognosis, but for patients with other morbidities such as poor circulation, history of heart and/or vessel disease, kidney damage, diabetes, hypertension, smoking, etc. the prognosis significantly worsens. In addition, having these after a heart attack makes the prognosis worse for a patient past 5 years.