Contact Us or Refer a Patient. Inova's cardiac surgery program provides a wide spectrum of surgeries for congenital heart defects in neonates, infants, children, teenagers and adults.The purpose of this guide is to provide you with basic information about filing a utility patent application with the USPTO. Mary C. Langford,ACNP-BC, specializes in Cardiology and is on staff at MedStar Washington Hospital Center. Virginia Heart - Fairfax is a medical group practice located in Fairfax, VA that specializes in Cardiology. Unpermitted construction means any construction work done without proper permits or inspections. This applies to all properties, even if they've changed owners. Unpermitted construction means any construction work done without proper permits or inspections. This applies to all properties, even if they've changed owners. Of Fairfu: County, Virginia.