Myocarditis Flashcards Preview

bradycardia > Myocarditis > Flashcards

Flashcards in Myocarditis Deck (8)
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1
Q

Define

A

Acute inflammation of the myocardium. Leads to decreased contraction power of heart»> Reduced CO and eventually heart failure

2
Q

Aetiology (5)

A
Idiopathic= 50%
Virus= coxsackie B, HIV
Bacteria= staph A, syphillis
Autoimmune= SLE, Giant cell myocarditis
Drugs= adverse hypersensitivity reaction
3
Q

Symptoms? (4)

A

Flu prodrome
Dyspnoea» because of heart failure symptoms
Chest pain relieved on sitting up
Palpitations because of arrhythmias (because the inflammation damages the pacemaker cells on myocardium)

4
Q

Signs? (3) ONE OF THE SIGNS IS A MAYBE

A

Auscultation= Soft S1 and gallop S4
Arrhythmias
MAYBE Ankle swelling (oedema) due to heart failure symptoms

5
Q

App Ix?

A

Bloods» troponin, fbc, esr, crp, CK&raquo_space; all elevated
ECG
Echo» will see inflamed heart
CXR» enlarged heart

6
Q

What will be seen on ecg of myocarditis pt? (3)

A

ST elevation/depression
Transient AV block
Inverted T wave

7
Q

Mx? (4)

A

Viral= will improve w/ time
Bacterial- ABx
If it has lead to heart failure» ACEi
Arrhythmias» will resolve with time as inflammation improves

8
Q

Complication? and why?

A

Heart failure» chronic inflammation of the heart will eventually lead to fibrosis and put a constrictive force on the heart meaning it cannot contract as much blood out.
Reduced CO