Welcome to the health professionals section of the Cardiology Service at Great Ormond Street Hospital. Video of Cardio-respiratory Division at Great Ormond Street Hospital If the video is not showing, please watch it on YouTube. A video transcript is also available. About usInformation about the Cardiology Service. Clinical outcomesView the clinical outcomes from the service. Refer a patientDetails on how to refer a patient to our care. Conditions we treatInformation on the conditions we treat. Meet the teamMeet the team who make up our department. Research and publicationsFind out about our research and publications. Contact usHow to contact the department.