Acute MI Flashcards Preview

Cardiovascular Diseases > Acute MI > Flashcards

Flashcards in Acute MI Deck (12):
1

what is it

ischaemic necrosis of a tissue of myocardium secondary to occlusion/reduction of the coronary blood supply

2

what are symptoms

severe crushing, heavy central chest pain
radiates to jaw and arms
not relieved by STN
sweating, nausea and vomiting
>20 mins duration
thready pulse

3

what is cause

atherosclerosis of coronary arteries

4

how is it diagnosed

symptoms
ECG
raised cardiac enzymes in blood (troponin I, T or CK)
transthoracic echo may be helpful

5

what is ECG findings

ST elevation, T wave inversion, Q waves

6

how is it treated

Morphine + anti emetic
Oxygen
Nitrates
Aspirin and Clopidogrel

7

what drugs are given post MI

dual anti platelet therapy (aspirin and clopidorel), B blocker, ACEI and statins

8

what reperfusion therapy used

thrombolysis (if PCI not available in time)
PCI (within 90 mins - 120 max)
CABG (reserved for complications of MI)

9

what is thrombolysis

uses streptokinase (or alteplase) to cause thrombolysis by activating plasminogen to plasmin and dissolving thrombi

10

when is thrombolysis contradicted

trauma
haemorrhage
stroke
recent surgery
severe HT
ulcers

11

what is complications

death, arrhythmia (esp ventricular tachycardia), cardiac rupture, aneurysm, inflammation, septal defect, mitral regurgitation, dresslers, ventricular dysfuncition, HF, cardiogenic shock

12

what is dresslers syndrome

pericarditis many weeks post MI, damages heart muscle