Arrhythmias Flashcards

(33 cards)

1
Q

Plan for acute AF with life threatening haemodynamic instability

A

Emergency electrical cardioversion

Can use flecainide or amiodarone

Amiodarone for people with structural heart disease

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2
Q

Plan for acute AF without life threatening haemodynamic instability

A

Onset AF <48hrs rate or rhythm control

Onset AF >48hrs rate control

Can use flecainide or amiodarone
Amiodarone for people with structural heart disease

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3
Q

What is 2nd line rate conteol monotherapy

A

Rate limiting CCB - diltiazem or verapamil

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4
Q

What is 1st line for rate control monotherpy

A

Standard BB not sotalol

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5
Q

What is 3rd line for rate control monotherapy

A

Digoxin only effective for ventricular rate at rest

Non paroxysmal AF and does minimal excercise

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6
Q

What is not recommended for long term rate control

A

Amiodarone

Should be used for rhythm

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7
Q

What is treatment plan for rate control dual therapy

A

BB with diltiazem or digoxin

This combo is C/I in HF not AF

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8
Q

What is 1st line rhythm control

A

Beta blocker

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9
Q

What is 2nd line rhythm control

A

Dronedarone
Amiodarone

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10
Q

If AF has persisted over 48 hrs what is plan

A

Electrical cardioversion
Consider amiodarone 4 weeks before and 12 months after to maintain sinus rhythm

Delay cardioversion until maintained on anticiagulation for minimum 3 weeks

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11
Q

Drug treatment plan after cardioversion

A

Amiodarone 12 months
Anticoagulant for atleast 4 weeks
Standard BB

if not use SPAF
Sotalol, propefenone, amiodarone, flecainide

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12
Q

What is CHADSVASC used to assess

A

Risk estimation for stroke or other thrombolic events

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13
Q

What is the CHADSVASC scoring
Who requires anticoag

A

Congestive HF
Hypertension
Age 75+ 2 POINTS
Diabetes
Stroke/TIA 2 POINTS
Vascular disease
Age 65-74
Sex female

Anticoag for males with 1+ and females with 2+

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14
Q

What does ORBIT assess

A

Identify people at high risk of bleeding

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15
Q

Paroxysmal AF 1st and 2nd line

A

Standard BB

if uncontrolled SPAF
sotalol, propafenone, amiodarone, flecainide

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16
Q

what is the ORBIT scoring

A

Over 75 years
Reduced haemoglobin 2 POINTS
Bleeding history 2 POINTS
Insufficient kidney function
Treatment with antiplatelet

17
Q

What is low medium high risk of ORBIT scoring

A

Low 0-2
Medium 3
High 4-7

18
Q

Paroxysmal supraventricular tachycardia management plan

A
  1. Reflex vagal stimulation - immerse face in ice cold water with ECG monitoring
  2. IV adenosine
  3. IV verapamil
19
Q

Paroxysmal AF pt has episodes what is the management plan

A

Pill in the pocket
Oral flecainide or propafene PRN

20
Q

Atrial flutter must be on what drug before cardioversion

A

Anticoagulant for 3 weeks prior

If flutter has lasted more than 48hrs

21
Q

Plan for unstable sustained ventricular tachycardia

A

Direct current cardioversion then
IV amiodarone then
Repeat current cardioversion

22
Q

Plan for pts with high risk of cardiac arrest

A

Maintenance therapy
Implantable cardioverter defibrillator

Add BB/amiodarone

23
Q

Plan for stable venteicular tachycardia

Sustained and nonsustained

A

IV amiodarone then
Direct current cardioversion

Non sustained then BB

24
Q

Torsade de pointes - what exacerbates this

A

QT prolongation

Caused by HYPOkalaemia or severe bradycardia

Amiodarone, sotalol, macrolides, haloperidol, SSRIs, TCAs, antifungals

25
Treatment for torsade de pointes
IV magnesium sulphate Betablocker NOT sotalol
26
Amiodarone monitoring and how often
Before then every 6 months Thyroid Lft U&Es Before Chest radiography Before and 12 months ECG Annually Eye
27
Side effects of amiodarone
Pulmonary toxicity - SOB cough Thyroid dysfunction Hepatotoxic Cardiac toxic Visual disorders - corneal microdeposits Photosensitivity - blue grey skin discolouration - protect from light during and after treatment
28
Amiodarone interactions
Drugs that cause HYPOkalaemis Drugs that cause QT prolongation Drugs that cause bradycardia - BB RL-CCBs CYP450s
29
What is digoxin therapeutic range
0.7ng/ml - 2.0ng/ml
30
What is digoxin toxicity range How to treat
1.5-3.0 Digifab - digoxin specific antibody
31
What are signs of digoxin toxicity
SA/AV block or bradycardia D+V Blurred or yellow vision Dizziness confusion headaches Depression
32
When to take digoxin blood samples
6-12 hours after dose
33
Digoxin interactions
TCAs - arrhythmias BBs - AV block and increases digoxin HYPOkalaemia - cardiac toxicity CYP450s