| Sudden
Death in Young
Athletes
Case
A fourteen year old boy comes to your
office for
a physical exam prior to entering high school. He is planning to play
soccer.
What are the important areas to cover in your history and physical
exam?
Approximately 50 young athletes die
suddenly each
year. Sudden death in athletes is defined as a cardiac arrest up to 6
hours
after initial onset of symptoms in an individual who has not previously
been recognized to have cardiovascular disease. It is estimated that
5/100,000
children have an underlying condition that makes them vulnerable to
sudden
death.
The American Heart Association recommends a
pre-participation
physical every two years by a healthcare worker who is able to obtain a
complete cardiovascular history, physical exam, and recognize heart
disease.
The physical exam should be done in a quiet
area
and the parent should be present. A thorough history and review of
systems
is important.
Pre-participation questions:
- Has there been any fainting or syncope
associated with
exercise?
- Has there been any family history of
death
in members
less than 40 years old other than by accident?
- Any history of chest pain with or
without
exercise?
- Any history of shortness of breath?
- Palpitations?
- History of rheumatic fever,
hypertension,
or Kawasaki's
disease?
- Physical exam should include blood
pressure, heart rate,
palpation of pulses, and chest and heart auscultation
The purpose of the athletic pre-participation
evaluation
is to identify athletes at risk and not to disqualify any athlete
unnecessarily.
If there is any suspicion, the patient should be further evaluated by a
cardiologist. There is no recommendation to screen all athletes with
EKGs
and Echocardiograms.
Conditions associated with sudden
unexpected death
- Hypertrophic Cardiomyopathy
- there is increased cardiac muscle
mass
without heart
dilatation and there is a filling defect. There may be impedance to
outflow
and the increased muscle mass may act as an arrhythmogenic focus.
- Symptoms-dyspnea, syncope,
angina,seizures
- may have harsh systolic murmur
- may have EKG and ECHO changes
- Coronary artery abnormalities
- Usually an aberrant origin. Physical
exam normal
- History of Kawasaki's Disease
- If there have been no coronary
artery
changes or patient
has resolution of coronary artery disease, patient should be cleared
for
competition.
- Myocarditis
- Usually have a history of being ill
including CHF
- Sudden deaths probably related to
conduction system
inflammation.
- Marfan's Syndrome
- Autosomal dominant
- Pectus deformities, > 95% for
height,
long spindly fingers,
ectopic lens, high palate, kypho scoliosis, inguinal hernias. Should
see
cardiologist.
- Mitral Valve Prolapse
- If there are cardiac symptoms,
should
see cardiologist
- Arrhythmias
- sinus node disturbance
- WPW
- Exercise induced ventricular ectopy
- Prolonged QT -high risk for
ventricular
arrhythmia (torsades
de pointes)
- Jervell-Lange-Nielsen syndrome
associated with congenital
hearing loss(auto dom)
- Romano Ward syndrome (autosomal
recessive)
- Atherosclerotic coronary heart
disease
- Family history of hyperlipidemias
should
be discussed
References
- Berger S. Dhala A and Friedberg DZ.
Sudden
Cardiac Death
in Infants, Children and Adolescents. Pediatric Clinics of North
America.
1999; 46(2):221-234.
- McCaffrey, FM, Braden, MC, Strong WB.
Sudden Cardiac
Death in Young Athletes. AJDC Vol 145, February 1991
- Van Camp, Steven P. Sudden Death.
Clinics
in Sports
Medicine Vol 11 Number 2 April 1992
- Braunwald Eugend. Hypertrophic
Cardiomyopathy-The Benefits of a Multidisciplinary Approach NEJM
Vol.
347 No. 17 pg.1306 October 24, 2002
- Maron B.J.
Sudden Death in Young Athletes. NEJM September 11, 2003 Vol 349 No.
11 pg 1064
- NishimuraR. Holmes D. Hypertrophic
Obstructive Cardiomyopathy NEJM 350:13;1320 March 25, 2004
- Case Records off the Massachusettes
General Hospital. NEJM August 25, 2005
- Ellison Alison, et al.
Preventing-with the goal of eradicating- sudden cardiac death in
children. Contemporaray Pediatrics October 2005
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