Athletic conditions Flashcards
The cardiac muscle becomes _______ with training
larger
If the heart wall thickness does NOT decrease during de-training this indicates
Possible cardiac disease
Prevalence of sudden cardiac death in young athletes
1 and 3 in 100,000
What is the most common cause of sudden cardiac death
Congenital cardiac disease
What causes Commotio Cordis?
Trauma to the chest wall interrupts the electrical impulse of the heart
Chest blow during repolarization induces
Ventricular fibrillation
What sports have been associated with greatest number of deaths due to commotio cordis?
Sports with hard projectiles (baseball, lacrosse, softball)
What is the major causative factor of commotio cordis?
Timing of the incident
Prevention of commotio cordis
Protective padding
AED/CPR within 3 minutes
What is Hypertrophic Cardiomyopathy?
Left ventricle walls thicken
80% of individuals with HCM have __________
Abnormally small coronary arteries causing myocardial ischemia
Both ______ wall distensibility and incomplete myocardial relaxation contribute to _________ left ventricular filling
Decreased, altered
Symptoms of hypertrophic cardiomyopathy
Fatigue
Dyspnea
Exertional angina
syncope- temp loss of consciousness
Exertional angina, syncope and near syncope are all
Conditions that could cause sudden cardiac death and warrant immediate referral
What could be heard when listening to a heart with hypertrophic cardiomyopathy?
Harsh precordial ejection murmur at the left lower sternal border
MRI of someone with Hypertrophic Cardiomyopathy will show _____
> 15 mm ventricular wall thickness
An echocardiography will show what with hypertrophic cardiomyopathy?
Ventricular septum or free wall thickness
Decreased ventricular diastolic activity (<45mm)
Discontinuing activities for __________ may help to determine HCM
A few weeks to 1 month
Classification of Sports based on peak static and dynamic components
Picture
Can individuals with HCM that have a implantable cardioverter defibrillator participate in competitive sports?
NO
Athletes with hypertrophic cardiomyopathy should be restricted from ____ competitive sports with possible exception of ________
ALL
Low-intensity sports (class 1A)
Prevention of death from hypertrophic cardiomyopathy
Comprehensive medical history
Screening
What is the second leading cause of sudden death in athletes?
Coronary artery abnormalities
When do most events happen with coronary artery abnormalities?
During or just after strenuous exercise
How are coronary artery abnormalities characterized?
Aberrant (deviating or abnormal) coronary artery
Complete absence of coronary artery
Coronary artery abnormalities are usually involve which artery?
Left anterior descending artery
Signs and symptoms of coronary artery abnormalities
Angina with exertion
Exertional syncope
Near syncope with exertion
Exertional dyspnea
A heritable disorder of the connective tissue
Marfan syndrome