Topic 9a: General Medical Conditions and the Athlete Flashcards
what is sudden death in sport?
an event that is nontraumatic, unexpected and occurs instantaneously (within minutes) of an abrupt change in an individual’s previous clinical state.
biggest problem with sudden death in sport
- no warning
- need to be prepared at all times and alert
signs and symptoms of sudden death
person collapses
most common cause of cardiac death
HCM: enlarged heart
- hypertrophic cardiomyopathy
3 categories of sudden death
- cardiac causes in young athletes
- noncardiac causes in young athletes
- sudden death in athletes over 35 years old
cardiac causes in young athletes
what exactly is HCM?
left venticle and left ventricular wall specifically enlarged
- reduce volume of the (i think she said blood flow?)
- abnormal filling
- less efficient heart
symptoms of HCM?
- wont be diagnosed until imaging
- syncope (lightheaded), palpitations, chest pain, racing or skipping heart beat (fluttering), dyspnea, family history of sudden death before age 50
- later: increased BP and HR
what is coronary artery abnormalities
a congenital defect in one or more of the coronary arteries
- coronary arteries feed heart muscle with oxygen
- at age 35, lifestyle affects them
- causes heart attack
what is aortic rupture?
- happens when someone has marfan syndrome which causes tears in aorta, leading to rupture
- connective tissue is weak and vulnerable
how to know if someone has marfan syndrome?
- tall, thin and has arm span exceeds height
- sunkin chest
- joints are hypermobile
- kyphoscoliosis
- myopia
what causes marfan syndrome?
costocarnal cartilage
what syndromes are arrhythmias?
- wolff-parkinson-white syndrome (very fast heart rate) leads to tachycardia
- prolonged QT syndrome (time between QRST is extended) 440 milliseconds
- bradycardias (slow heart rate) 4+ seconds between beats is a problem
QRS on arrhythmias slide 16
ventricular depolarization
what is myocarditis?
- asymmptematic
- inflammation of heart tissue (cardiac muscle) making valves insufficient
- assosicated with arrhythmias (idk i think inflammation of inside heart)
4 most common symptoms of myocarditis
- chest pain
- shortness of beath
- palpatations
- faint or dizziness
what is pulmonary valve stenosis?
- pulmonary valve is thick and narrowed
- more pressure needs to be exerted
- high pressure in the right ventricle
what is aortic valve stenosis?
- aortic valve is thickened and narrowed
- abnormally high pressure in the left ventricle
- left ventricular wall becomes thickened
- stenosis (narrowing) of the aortic valve
mitral valve prolapse
heart murmur
- blood and bacteria can go backwards through a valve
what causes noncardiac sudden death in young athletes?
- commotio cordis
- substance abuse (can cause depression)
- intracranial disorders (buildup of pressure around the brain usually result of head injuries)
- exertional hyperthermia
- exertional rhabdomyolysis (acute fatal disease caused by overexeration of muscles)
symptoms of noncardiac sudden death in young athletes
- history of syncope (fainting)
- pain when taking deep breath
what is sudden death in athletes over 35
usually coronary artery disease
or anything impairs circulation of blood
- plaque build up in vessels
- left coronary artery usually impacted more than right
how to prevent sudden death in athletes
- screen athletes
- restrict activity in athletes with:
- marfan’s
- hypertrophic cardiomyopathy (HCM)
- atherosclerotic disease
- coronary artery abnormalities
- know the warning signs
- syncopea
- shortness of breath
- palpatations
- chest pain
what is anemia?
- a reduction in either the red blood cell volume (hematocrit) or hemoglobin concentration