Myocarditis

Question 1

Myocarditis?

Answer 1

Acute inflammation and necrosis of cardiac muscle (myocardium).

Question 2

Myocarditis risk factors (6)?

Answer 2

usually idiopathic, viruses (coxsackie B, EBV, CMV) bacterial (post-streptococcal, TB)

Question 3

Myocarditis epidemiology?

Answer 3

Coxsackie B virus is most common in USA and Europe, Chagas disease is most common in south america.

Question 4

Myocarditis symptoms?

Answer 4

Prodromal flu-like illness with fever, malaise, fatigue, lethargy, breathlessness, palpitation, sharp chest pain.

Question 5

Myocarditis signs?

Answer 5

signs of pericarditis, signs of complications.

Question 6

Myocarditis investigations bloods?

Answer 6

WCC raised if infective cause, U&Es, ESR/CRP, cardiac enzymes

Question 7

Myocarditis investigations ECG?

Answer 7

nonspecific T wave and ST changes, pericarditis = widespread saddle-shaped ST elevation

Question 8

Myocarditis investigations CXR?

Answer 8

may show cardiomegaly

Question 9

Myocarditis investigations pericardial fluid drainage?

Answer 9

measure glucose, protein, cytology, culture and sensitivity