Heart attack blackboard Flashcards Preview

Cardiology > Heart attack blackboard > Flashcards

Flashcards in Heart attack blackboard Deck (15):
1

Platelet adhesion receptors for leukocytes

P-selectin
CD40

2

In STEMI, when do ECG changes show? (ST elevation, Q wave inversion, Q waves)

ST elevation - first few hours
Q wave inversion - first day

"Old MI" - Q waves +/- inverted T waves

3

Needed to show you had STEMI?

>1mm ST elevation in 2 adjacent limb leads

>2mm ST elevation in at least 2 contiguous precordial leads

New onset bundle branch block

4

Inferior STEMI (leads)

II, III, AVF

5

Anterior STEMI

V1-V6

6

Anteroseptal STEMI

V1-V4

7

Anterolateral STEMI

I, AvL, V1-V6

8

CK

Peaks in 24 hours
Also in skeletal muscle and brain

9

Protein marker TnT (troponin T)

Highly specific for cardiac muscle damage
Can detect tiny amounts of myocardial necrosis

10

Early Treatment of STEMI

Analgesia - diamorphine iv
Anti-emetic - iv
Aspirin - 300 mg and Clopidogrel 300 mg
GTN - if BP > 90 mmHg
Oxygen - if hypoxic
Primary angioplasty
Thrombolysis – if angioplasty not available within 90 minutes

11

Risks of thrombolytic therapy?

Failure to reperfuse
Haemorrhage
Hypersensitivity

12

Arrhythmia you could get after MI?

VF

13

Structural complications of MI?

Cardiac rupture
VSD
Mitral valve regurgitation

Left ventricular aneurysm formation

Mural thrombus +/- systemic emboli
Inflammation
Acute pericarditis
Dressler's syndrome

14

Killip Classification of heart failure

I - no signs of heart failure
II - crepitations 50% of lung fields
IV - cardiogenic shock

15

Cholesterol target

<130-80