Screening for prevention of sudden death in the young: what is new?

Area of Science:

• Cardiology
• Sports Medicine
• Preventive Cardiology

Background:

• Sudden cardiac death (SCD) risk in young individuals, particularly athletes, is a significant concern.
• Current screening strategies aim to identify individuals at risk but their optimal approach remains debated.
• Recent data provide updated insights into the incidence and detection of cardiac conditions linked to SCD.

Purpose of the Study:

• To review recent data on screening young people for conditions that increase the risk of sudden death.
• To evaluate the effectiveness and challenges of current screening methods, including ECGs.
• To highlight the ongoing need for research into optimal screening protocols.

Main Methods:

• Review of new data from January 2018 to July 2019 concerning cardiac screening in young individuals.
• Analysis of reported cardiac findings and incidence of sudden death in screened populations.
• Evaluation of the sensitivity and performance characteristics of screening electrocardiograms (ECGs).

Main Results:

• Cardiac findings associated with sudden death risk were identified in approximately 0.4% of screened athletes.
• Screening electrocardiograms (ECGs) demonstrated varying sensitivity, ranging from 86% to 100% in different programs.
• A recent study reported a higher incidence of sudden death in young people (6.8 per 100,000 athletes) than previously documented.

Conclusions:

• While ECGs can detect conditions missed by physical exams, their performance varies, and cost/infrastructure challenges persist.
• The incidence of important findings in screening programs (around 0.4%) may approximate the population rate of detectable disease in athletes.
• Further research is needed to establish optimal screening strategies and address the practical aspects of implementing widespread screening programs.