1/9: Arrhythmia Flashcards Preview

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Flashcards in 1/9: Arrhythmia Deck (22)
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1

What is an Ectopic Beat, and how do you treat it?

An Ectopic Beat is a Heartbeat that is Premature. Reassure the patient but treat with Beta-Blockers if they're troublesome. This Slows the heart down.

2

What do we check for initially when someone presents with new onset AF?

Initial Stoke Assessment and Thromboemolism needs to be done in AF.

Using tools such as: CHA2DS2-VASc Assessment Tool.

A score of 0  for Men or 1 for women means we do not initiaite prophylaxis. 

3

Discuss how we manage AF 

Managed by either controlling 1: ventricular rate or by attempting to 2: restore sinus rhythm. If this doesnt work for 4 weeks or is reocurring, patient should be referred

Ventricular rate can be controlled by a standard ß-Blocker Or a Rate Limiting CCB such as Verapamil [unlicensed] or Diltiazem as monotherapy.

4

When do we give Ablation therapies

Ablation therapies are given if Drugs and other therapies fail to control AF

5

If AF is not Life threatening, how do we treat it?

Rate or Rhythm control given if the Arrhythmia is within two days. After 48 hours, try Rate is preferred, and an oral anticoagulant is started 

Based on the Circumstances, consider elcectrical or pharmacological cardioversion with Amiodarone or Flecanide (avoid in structural heart disease).  

6

Discuss Cardioversion

Initiated when the Sinus Rhythm needs to be Restored with Electrical / Pharmacological cardioversion. 

Drug wise, we give either Amiodarone or Fleccanide. 

But - we do not attempt electrical cardioversion unless the patient is fully anticoagulated for at least 3 weeks first. If that's not possible give IV Anticoagulant . Rule out a left Atrial Thrombus, and continue Anticoag for 4 weeks +- Rate control as required.`  

7

First line Drug Treatment in AF?

8

When can i give Digoxin

  1. Digoxin is only good alone in the Monotherapy of controlling ventricular rate at rest, i.e if it is established Atrial Firbrillation.
  2. It can also be given when Beta-Blocker Monottherapy is not good enough
  3. It can be given when AF is accompanied by Heart Failure
  4. When Ventricular Function is diminished:  BB + Digoxin.

9

When a single drug fails to treat AF, what's next

When a single drug fails to control ventricular rate, a combination of drugs, including a ß-Blocker, Digoxin, or Diltiazem can be combined.

If these rate methods dont work. Try and control rhythm

10

What do we give Post Cardioversion?

Post Cardioversion, to maintain sinus rhythm, we give

- Sotalol 

- Flecanide Acetate  

- Propafenone HCl 

Amiodarone 

11

In any case, what drug do we avoid if stuctural heart disease is present in a patient? What can we give instead?

Flecanide and Propafenone. Give Amiodarone instead if patient has Left Ventricular Impairment or HF. 

12

Outline the guidance for Paroxysmal AF

In PAF -- give :

1: Beta Blocker

2: Sotalol / Flecanide / Amiodarone (If ß Ineffective)

 

13

What options do you have to give Oral Anticoags in AF?

- Vitamin K Antag (Warfarin)

- Apixaban 

- Dabigatran 

-Rivaroxaban 

(All NOACs here given in non valvular AF)

 

14

What do we not give in AF?

Aspirin is not given as monotherapy if the patient has AF

15

Post an MI, if there is AF, what do we do and not do?

Dont give Anti-Arrhythmic until ECG obtained

Give Atropine IV as first line for Bradycardia and Hypotension

Give Adenosine/Epinephrine if there's a risk of Asystole

16

Outline Ventricular Tachycardia

For Pulseless VT / Ventricular Fibrillation:

- Treated with Immediate Defibrilation.

  Patients with sustained Ventricular Tacchycardia and Hypotension + Reduced Cardiac Output

- DC Cardioversion to resore sinus rhythm

- IV Amiodarone + DC repeated to bring sinus rhythm back

Haemodynamically unstable patients with Ventricular Tacchycardia

  1. Amiodarone
  2. Fleccanide or Propafenone
  3. Lidocaine
  4. DC if sinus rhythm not resored
  5. Catheter Ablation

In sutstained VT 

 - Specialist referal

 - Implantable Defib

 - ß-Blocker / Sotalol / Amiodarone may be used adjunct

17

What the cause of Torsades the Pointes and what is the rescue?

Its a form of Ventricular Tachycardia and is associated witha prolonged QT syndrome, can be caused by hyperkalaemia and severe bradycardia. 

 

Treated with IV magnesium sulfate or Standard ß-blockers 

 

Avoid Giving AntiArrhythmics here as can further prolong the QT inerval.

18

Outline the treatment of Paroxysmal Supraventricular Tachycardia and mention what to do if its recurrent

PSVT Normally terminates on its own or with Vagal Stimulation such as Valsalva Manouvre, Immersing the face in ice-cold water, or carodid sinus massage. Monitor the EGC for improvements.

No Change? Initiate IV Adenosine or if contraindicated (e.g COPD) give Verapamil. Avoid if already on BB.

 

If it doesnt work, it suggests the Arrhythmia of Atrial Origin.

 

If its recurrent. Give Catheter Ablation, or Prevent with Drugs such as Diltiazem, Verapamil, Sotalol, Flecanide, Propafenone.

 

 

19

What does CHA2DS2-VASc Stand for? and What parameters do we give a score of 2?

C - Congestive Heart Failure

H - Hypertension

A - Age >70 (2)

A - Age > 65

D - Diabetes 

S - Stroke/TIA (2)

Va - Vascular disease

S - Sex = Female.

20

What Drug is given 4 months before and up to 12 months post cardioversion?

Amiodarone 

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