Sudden cardiac death (SCD) in athletes is an agonizing matter for families, society, and health professionals. Though the sports practices boost physical fitness, health, and quality of life, intense training and strenuous exercises done by athletes potentially trigger sudden cardiac arrest in them. It can also occur due to known and unknown cardiac diseases in athletes such as cardiac hypertrophy. Apart from these, other risk factors are also involved in the occurrence of this disorder, for example, genetic factors, environmental factors, family status, and lifestyle style, etc., It is examined that in older athletes such as 35 or above 35 years of athletes, coronary artery disorder emerges as the key source of SCD. Though, in some older athletes, hypertrophic cardiomyopathy is also reported as the major risk factor of sudden cardiac death in competitive athletes and responsible for above one-third of the deaths in athletes. However, a small number of individuals may still have conditions that place them at risk for sudden death during exercise. Most people do not have an increased risk of SCD prevalence because it is infrequent, but certain individuals have increasingly become associated with it, especially athletes. The World Health Organisation (WHO) classified SCD as an unexpected death within an hour of the onset of symptoms <2>. On April 12, 2021, a Morrocan Athlete, Redi Saki passed out in the middle of a soccer match and was rushed to the hospital and was announced dead upon arrival. This 21-year-old athlete and many other athletes experience life-threatening moments and lose their life with the intense sports activity they precede as a career. This article believes that these professionals would have benefited from advanced screening techniques prior to their match. Among the many professionals and amateur athletes who have lost their lives to SCD are stories like Norweigan Olympic swimmer Alexander Dale Oen. Oen, who had the fourth-fastest breaststroke time in history, was found collapsed on his bathroom floor whilst on a training camp after his heart stopped. When an athlete suffers a sudden cardiac arrest many like Oen, do not survive. For some though, like 23-year-old Fabrice Muamba who played professional football in the UK, lives can be saved. Muamba collapsed on the pitch during a game in 2012, despite his heart-stopping 78minutes of awareness of SCD and timely CPR from the medics helped him to survive. Despite its rare prevalence SDC is a worldwide health concern but within the sporting community where athletes are seen as figures of health and fitness, it poses some questions around what measures should be put in place to screen, detect, and where possible prevent sudden death. The question seems to be if the cost of implementing screening, which includes psychological and ethical costs alongside financial, is worth the potential difference it can make to SCD rates. SCD is the most prevalent among athletes, although statistics differ widely. Approximately, 1 in 50,000 to 1 in 80,000 athletes will likely develop SCD each year. Though rare, this disorder in athletes can have an extreme effect on society. Risk assessment is beginning to produce some positive effects on the whole, though an Italian nationwide pre-participation method for the screening for sudden cardiac death in competitors failed due to the lack of success in recognizing the significance of its effects on economic cost. With the help from the Italian National Institute of Statistics (ISTAT), a lot of data was gathered on the results in standard terms and then matched to sport-related figures in Italy, an analysis done by the Italian National Olympic Committee (CONI). In the year 2019, people were diagnosed with SCD, and of the 98 SCD cases recorded, 48% were competitive, 52% non-competitive athletes. The proportion of men to women had been 13 to 1. If we look at the most popular activities, then we see that 33.7% of them are soccer, the traditional sports in fitness was (13.3%) and finally, athletes were (15.3%). From the research conducted in US high-school and colleges (students between the ages of 12 and 24), the rate of SCD was 0.5 per 100 000. Simultaneously, in Italian competitive athletes, the number is significantly higher than 3.6 per 100 000 for college athletes (age 14-35). According to the National Center for Catastrophic Sports Injury Research, the incidence is substantially higher in males at the high school and college athlete levels (respectively, 0.75 vs.0.13 per 100 000 athletes annually from these two groups). However, based on similar studies, it has been recorded that the rates of death among Scandinavian people between the ages of 15 and 30, that were physically active were nearly as high in Denmark as they were in Norway, at 0.9 and 1.21 per 100 000 athlete persons respectively. Also, college athletes' death rate (ages ranged from 20 to 24) is double that of high school athletes (ages ranging from 12 and 19). Those numbers mean twice as many college athletes die each year. It is also important to note that hypertrophic cardiomyopathy (thickening of the heart) is the leading cause of death in athletes in the US and predisposes them to SCD. It is estimated that it happens to around 35% to 50% of young athletes per year. On the other hand, a substantial impact of socioeconomic status on the incidences of sudden cardiac death in athletes anticipated but it has not been completely determined. Lower education level is also considered as the risk of occurrence of cardiovascular disorders and these cardiovascular disorders can significantly impact people’s life. It has been evaluated that lower educational status is a substantial risk factor to develop lipids and cholesterol plaques, these plaques restrict the blood flow in the arteries of the heart, which can ultimately lead to severe cardiovascular diseases and sudden cardiac death. Therefore, lower educational status has always been a risk factor for the advancement of cardiovascular diseases. HOW WOULD TESTING SUDDEN CARDIAC DEATH BENEFIT AN ATHLETE? The ultimate aim of the screening objective is to identify factors that could predispose to SCD. Diagnosis of malignant myopathies has been established through testing with a 12-lead electrocardiogram (ECG) and can reduce the incidence of this disorder. The more modern the ECG interpretation, the more precise it is, i.e., the greater its capacity to identify severe disorders, including the potential to diagnose life-threatening cardiac conditions (preserved sensitivity). Also, it ensures the ability to correctly identify heart failure (a reduction in false-positive (increased specificity) results is almost as critical as an improvement in the positive ones). That will mean that the deployment is a life-saving and cost-effective approach for young athletes if the ECG-detectable cardiac conditions that trigger SCD are found during the pre-participation screening. LIST OF HIGH-RISK CAUSES OF SUDDEN CARDIAC DEATH IN YOUNG ATHLETES Several factors are the causes of sudden cardiac death in athletes under 30, including hypertrophic cardiomyopathy, ventricular dysplasia, arrhythmogenic right ventricular dysplasia, and aortic heart problems to Marfan syndrome, and dilated cardiomyopathy, myocarditis, valvular disease, and electrical disorders. It may also be caused by commotio cordis. In most studies, hypertrophic cardiomyopathy (HCM) was the most prevalent cardiac disease and responsible for 36% of SCD in the US registry from the Minneapolis Heart Institute Foundation. When discussing which heart anomalies were discovered, more frequent ones include coronary artery anomalies (17%). In contrast, the others include arrhythmogenic right ventricular cardiomyopathy (or even ventricular defects) in only a small percentage (4%) of cases. Other cases were associated with aortic stenosis and aortic rupture, dilated cardiomyopathy, CAD, and mitral valve prolapse. HOW TO PREVENT AND TREAT SUDDEN CARDIAC DEATH IN ATHLETES There are a number of strategies that are helpful for the treatment and prevention of sudden cardiac death in athletes and other young people. It includes individual as well as team strategies to handle sudden cardiac death in athletes. Some of these prevention strategies involve CPR training, public health campaigns, and the usage of automated external defibrillators (AEDs) at public places. Socioeconomic disparities could be a significant consideration for the execution of community-wide methodologies to prevent sudden cardiac arrest, with instantaneous implications for the ideal utilization of AEDs within the community. AEDs have great importance in the prevention, management, and treatment of sudden cardiac arrest but still, the number of AEDs at sports facilities is insufficient to handle the increased sudden cardiac death incidences in athletes. Defining how to utilize suitable screening techniques for the early diagnostic and adequate prevention of sudden cardiac death in athletes is a significant issue that desires to be addressed. There are few cost-effective and non-invasive screening strategies as well that have been recommended to diagnose athletes with a high risk of sudden cardiac death. Electrocardiography (ECG) has been the most common screening technique for sudden cardiac death in athletes in Europe. On the other hand, researchers from the USA think that because of the high false-positive rate and low incidences of sudden cardiac death in athletes, there is no need to adopt ECG in the screening of sudden cardiac death. In addition, the American Heart Association suggested Cardiovascular consultation (i.e., Cardiogram) was only for those who were diagnosed with an abnormality. This echocardiography will help discover how strong the heart is, which helps provide suggestions about preventing sudden cardiac death. American Heart Association (AHA) concluded that universal cardiovascular pre-participation screening might discover susceptible young athletes who are likely to experience cardiovascular incidents (this was said in 1996, when the AHA recommended it for the general population, particularly young athletes, as well as those participating in sports such as American football, basketball, for cardiovascular events). However, the recommendations include a 12-element entire history and a physical examination was provided before competitive sports, and restricted non-invasive tests such as, e.g., 12-lead ECG echocardiography was administered as the primary screen before an exercise stress test. A previous study done by Corrado et al. reported that, in a screening program of sudden cardiac death from 1979-1981, only 4.19/100,000 prevalence of sudden cardiac death was identified in athletes and later it reduced to 0.43/100,000 per annum from 2001-2004. This screening strategy reported a significant result and encouraged establishing a screening program for all sports clubs. The fatality rate of sudden cardiac death in athletes is approximately 85% even after providing the rapid AEDs and 65% in CPR treatment to prevent the sudden cardiac death incidence in athletes. Sudden Cardiac is a striving concern to both athletes and sports clubs. With high-intense activity and not having proper screening is an issue that needs further studies.
Sudden Cardiac Death in Athletes
Updated: Nov 19, 2024