Italian Guidelines for Cardiological Evaluation in Competitive Football Players: A Detailed Review of COCIS Protocols
Abstract
1. Introduction
2. Sudden Cardiac Death in Athletes: Understanding the Risk
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- Hypertrophic Cardiomyopathy (HCM): HCM is a genetic disorder characterized by thickening of the left ventricular wall. This condition increases the risk of arrhythmias and sudden cardiac arrest [9]. It is the most common cause of SCD in young athletes, particularly during physical exertion. HCM is especially prevalent in Afro-Caribbean athletes. This underlines the importance of early and regular screenings. The hypertrophy seen in HCM may resemble normal adaptations in elite athletes. Therefore, distinguishing between physiological adaptation and pathological hypertrophy is a key focus of the COCIS protocols. Mild cases of HCM may have no noticeable symptoms. As a result, comprehensive imaging is often required for diagnosis [10]. Regular monitoring helps ensure that even athletes with subtle indicators receive proper evaluation.
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- Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC): ARVC is a genetic condition that gradually replaces heart muscle with fibrous or fatty tissue. It typically affects the right ventricle but can also involve the left or both ventricles. This condition increases the risk of arrhythmias and SCD, especially in individuals between the second and fourth decades of life [11]. In Europe, the prevalence of ARVC is estimated to range from 1 in 5000 to 1 in 2000. ARVC may remain unnoticed until symptoms occur during intense exercise. Common symptoms include palpitations, syncope, and chest pain. The Italian protocol recommends advanced imaging if any major ECG abnormalities are observed. This is especially important when abnormalities are combined with family history, stress test irregularities, or arrhythmias. Ventricular dysfunction often only becomes evident under exercise-induced stress. Cardiac MRI is particularly useful for detecting early signs of ARVC, as electrical anomalies may only appear under high-stress conditions [12]. Given its often silent progression, athletes with even minor ECG changes should receive routine follow-up evaluations.
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- Congenital Coronary Artery Anomalies: These are structural abnormalities in the coronary arteries present from birth. They can reduce blood flow to the heart muscle during exertion, leading to ischemia and fatal arrhythmias [13]. Unlike acquired coronary artery disease, congenital anomalies often require advanced imaging to detect. CT coronary angiography is increasingly recommended in cases where traditional screening methods are inconclusive. The COCIS protocols support the use of coronary CT angiography when congenital abnormalities are suspected, as they may not be visible on standard imaging.
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- Ion Channelopathies (e.g., Long QT Syndrome, Brugada Syndrome): Ion channelopathies are inherited disorders that affect the heart’s electrical activity. They increase the risk of life-threatening arrhythmias, particularly during intense physical activity [14]. High-intensity exercise alters the electrical and autonomic balance of the heart, which can trigger symptoms in athletes with underlying channelopathies. Diagnosis requires a multidisciplinary approach. This includes clinical assessment, resting ECG, exercise testing, 24 h Holter monitoring, pharmacological stress tests, and genetic analysis. Genetic testing is now a core part of the COCIS protocols. Early identification allows for risk mitigation through personalized training plans, close monitoring during competition, or pharmacological therapy when necessary.
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- Andersen–Tawil Syndrome (LQTS Type 7): Andersen–Tawil Syndrome is a rare genetic disorder caused by mutations in the KCNJ2 gene. It typically presents with mild to moderate QT interval prolongation. U waves are frequently observed. Characteristic arrhythmias include bidirectional ventricular tachycardia. The risk of sudden cardiac death exists but is generally considered low. Prevalence is approximately 1 in 1,000,000.
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- Timothy Syndrome (LQTS Type 8): Timothy Syndrome is a severe, ultra-rare condition caused by mutations in the CACNA1C gene. It features extreme QT prolongation (often > 600 ms), frequent AV block, and high risk of malignant arrhythmias. Patients show multisystem involvement. Sudden cardiac death risk is extremely high, often occurring in early childhood. Prevalence is around 1–2 per 100 million individuals.
3. The Role of COCIS Protocols in Preventing SCD
4. Cardiovascular Screening Protocols in Competitive Football
4.1. Medical History and Initial Cardiovascular Evaluation
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- Family history of sudden cardiac death, particularly in relatives under 50 years of age.
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- Personal history of syncope, especially if it occurs during physical activity.
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- Symptoms such as palpitations, chest pain, or abnormal shortness of breath during exercise.
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- Prior diagnoses of heart conditions such as high blood pressure, arrhythmias, or congenital heart disease.
4.2. Resting ECG
4.3. Exercise Stress Test
4.4. Echocardiogram
4.5. Holter Monitoring and Cardiac MRI
5. Literature Review and International Comparison
6. Discussion
7. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
Abbreviations
ARVC | Arrhythmogenic right ventricular cardiomyopathy |
COCIS | Commissione di Vigilanza per il controllo dell’Idoneità Sportiva |
CT | Computed tomography |
DCM | Dilated cardiomyopathy |
ECG | Electrocardiogram |
HCM | Hypertrophic cardiomyopathy |
LGE | Late gadolinium enhancement |
MRI | Magnetic resonance imaging |
SCD | Sudden cardiac death |
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Condition | Description | Main Risk | Epidemiology | Diagnostic Approach | COCIS Protocol Focus |
---|---|---|---|---|---|
Hypertro-phic Cardiomyopathy (HCM) | Genetic disorder causing thickening of the left ventricular wall | Arrhythmias and SCD, especially during physical exertion | Most common cause of SCD in young athletes; especially prevalent in Afro-Caribbean athletes | Comprehensive imaging (echocardio-gram, cardiac MRI), regular monitoring | Early screening and distinguishing physiological vs. pathological hypertrophy |
Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) | Genetic condition with progressive replacement of heart muscle by fibrous or fatty tissue, typically affecting the right ventricle | Arrhythmias and SCD, especially between 2nd and 4th decades of life | Prevalence: ~1 in 5000 to 1 in 2000 (Europe) | ECG monitoring, exercise testing, cardiac MRI (especially under stress), advanced imaging when abnormalities or family history present | Early identification of even minor ECG changes; stress imaging when needed |
Congenital Coronary Artery Anomalies | Structural abnormalities in coronary arteries present from birth | Ischemia and fatal arrhythmias during exertion | Rare but serious; exact prevalence varies | CT coronary angiography, especially when standard screening is inconclusive | Use of coronary CT angiography when anomalies are suspected |
Ion Channelo-pathies (e.g., Long QT Syndrome, Brugada Syndrome) | Inherited disorders affecting the heart’s electrical activity | High-intensity exercise alters the electrical and autonomic balance of the heart, potentially triggering arrythmias in athletes with underlying channelopathies | Rare; varies by specific syndrome | Multidisciplinary approach: clinical assessment, resting ECG, exercise testing, Holter monitoring, pharmacologic stress testing, genetic testing | Routine genetic testing, personalized risk management (training modifications, monitoring, therapy) |
Condition | Involved Gene | QT Prolongation | Type of Arrhythmias | Risk of SCD | Epidemiology |
---|---|---|---|---|---|
Andersen–Tawil Syndrome (LQTS type 7) | KCNJ2 (potassium channel, Kir2.1) | Mild to moderate, prominent U waves, possible long QT | Bidirectional VT, polymorphic VT | Present but relatively low compared to other LQTS types | ~0.08–0.1 per 100,000 (~1 in 1,000,000) |
Timothy Syndrome (LQTS type 8) | CACNA1C (L-type calcium channel) | Severe (QT > 600 ms), often with 2:1 AV block | Torsades de Pointes, polymorphic VT, very high risk of SCD | Extremely high, often fatal in early childhood | ~0.0015 per 100,000 (~1–2 in 100 million) |
Aspect | COCIS Protocol (Italy) | AHA Protocol (USA) | ESC Protocol (Europe) |
---|---|---|---|
Initial Screening | Mandatory: personal and family history, physical examination, 12-lead resting ECG. | Pre-participation evaluations (PPEs) are commonly required—though their components vary widely by state, school, and league: personal/family history and physical exam are required; ECG is optional. | Recommended: personal/family history, physical examination, and 12-lead resting ECG for all competitive athletes. |
Exercise Testing | Required. | Suggested mainly for athletes > 35 years or with cardiovascular risk factors. | Recommended for individuals with symptoms or abnormal screening; especially >35 years old. |
Follow-Up | Annual check-ups or more frequent depending on the sport and medical history. | Typically every 2–4 years; more often if symptoms or risk profile changes. | Depends on risk assessment and sporting level; follow-up intervals individualized. |
Eligibility Decisions | Strict criteria; disqualification possible in case of high-risk conditions. | Shared decision-making model, considering individual and sport-specific risks. | Risk stratification and tailored eligibility recommendations with patient involvement. |
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Longo, U.G.; Ahlbaumer, G.; Vannicelli, R.; Gregorace, E.; Ortolina, D.; Nicodemi, G.; Altieri, D.; Carnevale, A.; Carucci, S.; Colella, A.; et al. Italian Guidelines for Cardiological Evaluation in Competitive Football Players: A Detailed Review of COCIS Protocols. Healthcare 2025, 13, 1932. https://doi.org/10.3390/healthcare13151932
Longo UG, Ahlbaumer G, Vannicelli R, Gregorace E, Ortolina D, Nicodemi G, Altieri D, Carnevale A, Carucci S, Colella A, et al. Italian Guidelines for Cardiological Evaluation in Competitive Football Players: A Detailed Review of COCIS Protocols. Healthcare. 2025; 13(15):1932. https://doi.org/10.3390/healthcare13151932
Chicago/Turabian StyleLongo, Umile Giuseppe, Georg Ahlbaumer, Roberto Vannicelli, Emanuele Gregorace, Davide Ortolina, Guido Nicodemi, Daniele Altieri, Arianna Carnevale, Silvia Carucci, Alessandra Colella, and et al. 2025. "Italian Guidelines for Cardiological Evaluation in Competitive Football Players: A Detailed Review of COCIS Protocols" Healthcare 13, no. 15: 1932. https://doi.org/10.3390/healthcare13151932
APA StyleLongo, U. G., Ahlbaumer, G., Vannicelli, R., Gregorace, E., Ortolina, D., Nicodemi, G., Altieri, D., Carnevale, A., Carucci, S., Colella, A., Scalfaro, F., & Lemme, E. (2025). Italian Guidelines for Cardiological Evaluation in Competitive Football Players: A Detailed Review of COCIS Protocols. Healthcare, 13(15), 1932. https://doi.org/10.3390/healthcare13151932