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Athletic Heart Syndrome
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Athletic Heart Syndrome
, Normal Electrocardiogram Changes in Athletes, EKG Changes in Athletes
See Also
Arrhythmias in Athletes
Preparticipation Physical Evaluation
Exertional Syncope
Physiology
Regular intensive
Exercise
results in normal reversible heart adaptations with cardiac remodeling
Signs
Increased Left Ventricular wall thickness by 15-20%
Increased Left Ventricular End Diastolic Volume by 10%
Resting
Heart Rate
: 40-60 bpm
Irregular pulse
Increased
Pulse Pressure
S3 Gallup at Apex (S4 Gallup should raise red flag)
Physiologic split S2
Imaging
Chest XRay
May show globular cardiomegaly
Increased pulmonary vasculature
Echocardiogram
: Left Ventricular Dilatation (dynamic)
Left Ventricular wall thickening (static)
Normal Systolic and Diastolic function
Diagnostics
Electrocardiogram
Electrocardiogram
changes resolve when exercising
Sinus Bradycardia
with or without
Arrhythmia
Increased
False Positive
stress tests
Atrioventricular conduction delays
First degree block
Athletes: 10-33%
Incidence
Gene
ral population: 0.65%
Incidence
Mobitz I
Athletes: 10%
Incidence
Gene
ral population: 0.003%
Incidence
Mobitz II
Athletes: 8%
Incidence
Increased
QRS Complex
height
Left Ventricular Hypertrophy
criteria
Right Ventricular Hypertrophy
criteria
Wide
QRS Complex
(incomplete
Right Bundle Branch Block
)
Athletes: 14%
Incidence
Gene
ral athletes: 10%
Incidence
Repolarization changes
ST Segment Elevation
Flipped
T Wave
s
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