Sudden cardiac death (SCD) accounts for approximately 50% of deaths due to cardiovascular disease in developed countries.(1) Cardiac arrest survival rates are improving, providing an opportunity to thoroughly investigate for an underlying cause in the sudden cardiac arrest (SCA) survivor.(2) Coronary heart disease (CHD) is the cause in approximately 80% of survivors.(3) However, a cause may not be identified after initial assessment with an ECG, echocardiogram, and coronary assessment in a significant proportion of SCA survivors, leading to a diagnosis of unexplained cardiac arrest (UCA).(2,4)
This article will highlight the current available investigations for a SCA survivor with UCA.
Authors Heartbeat Sub-Editor: Sandeep Singh Dr Sandeep Singh is a Cardiology Clinical Fellow at Nottingham University Hospitals NHS Trust. After graduating from India, he completed
Authors Heartbeat Sub-Editor: Khin Kay Kay Kyaw I am currently working as cardiology specialist registrar ST6 at southwest peninsula region while also working as an
Authors Heartbeat Sub-Editor: Anindya Mukherjee Dr. Anindya Mukherjee is a ST5 trainee registrar in Cardiology at Mid Yorkshire Teaching NHS Trust, UK, with extensive experience
Authors Sub-editor: Sameer Zaman Heartbeat Sub-Editor: Aleena Haider Aleena is an academic cardiology trainee at Imperial College London with a strong commitment to all aspects
Authors Sub-editor: Sameer Zaman Heartbeat Sub-Editor: Padraig O Drisceoil Dr Pádraig Ó Drisceoil is a Cardiology Speciality Trainee from the Wessex Deanery, who is currently an
