Cardiac Arrest

benryan95's version from 2015-10-12 19:44

Section 1

Question Answer
What are common complications post MI?Congestive Heart Failure, Arrhythmias, Recurrent Ischaemia and Infarction, Depression
What is a Sustained VT?A ventricular rhythm faster than 100bpm lasting at least 30 seconds
What does Sustained VT result in?Hypotension, weakness, syncope, palpitations
How are Sustained VTs treated?Amiodarone/lidocaine, Pacing, ICD, other anti-arrhythmic medications
What is a common complication in sustained VTs?Ventricular Fibrillation

Section 2

Question Answer
What are the ways of classifying cardiac arrest?Shockable rhythms (VF, pulseless ventricular tachycardia) and non-shockable rhythms (pulseless electrical activity, asystole)
What is sudden cardiac arrest?Sudden state of circulatory failure due to a loss of cardiac systolic function
What is the main underlying cause of sudden cardiac arrest?Ischaemic heart disease (52.2%)
What is the pathophysiology of VT/VF?Myocardial ischaemia --> change in components of myocardium --> pathogenic impulse formation/arrhythmia, myocardial scarring can also lead to re-entrant circuit --> arrhythmia
How are shockable rhythms treated?CPR/defib --> epinephrine/vasopressin --> adjunct magnesium/anti-arrhytmic (amiodarone/lidocaine)
How are non-shockable rhythms treated?CPR + epinpehrine/vasopressin --> atropine
What are common complications of cardiac arrest?Death (85%), rib and sternal fractures, anoxic brain injury, recurrent cardiac arrest

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