Dr. Grapsa is a consultant cardiologist at Guys and St Thomas NHS Trust. She also holds an academic position as a Reader for Kings College London. She has a specialist interest in valvular heart disease and imaging.

She was the founding editor in chief, for JACC Case Reports, under American College of Cardiology. She owns the foundation of JACC Case Reports Peer Review Mentoring Program and other initiatives such as DaVinci corner. She is also chairing the women in imaging task force, under EACVI, European Society of Cardiology (ESC). She was holding a position as secretary (treasurer) for ESC valvular heart disease council.

She graduated from the Medical School of Ioannina. Subsequently she trained within Imperial College NHS Trust and Royal Brompton Hospital.  Her first consultant job was in Papworth and Queen Elizabeth Kings Lynn Hospitals and subsequently she was the lead for echocardiography department at Kingston Hospital. Then she had a contract with Cleveland clinic and she was one of the first women to work for Cleveland clinic Abu Dhabi. From September 2018, she is back in London. She was the lead for the echocardiography department for Royal London Hospital and a consultant cardiologist for Barts Health Trust and she was appointed as a consultant for Guys and St Thomas NHS Trust in March 2020. She is a fellow for the Royal College of Physicians, European Society of Cardiology, American Heart Association, European Association of Cardiovascular Imaging, American Society of Echocardiography and American College of Cardiology.

She has received awards from European Society of Cardiology (training & research grant, as well as young investigator award in 2013 for her research in pulmonary hypertension). She was the first author of the British guidelines for echocardiography in pulmonary hypertension. She has participated in European position papers and guidelines