Heart Block

Question 1

What are significant causes of heart block?

Answer 1

Myocarditis
LEV’s disease
Ischaemic Heart Disease
Cardiomyopathy

Question 2

what does an SA node block look like on an ECG?

Answer 2

normal p waves, normal timing but there is a lack of a P wave for sometime and so no QRS after too

Question 3

what are all the AV node block types?

Answer 3

1st Degree
2nd Degree
- Morbitz type1
- Morbitz type 2
3rd Degree (full block)

Question 4

what is the general treatment for AV node block?

Answer 4

Atropine (increase heart rate)
Transcutaneous pacing- through electrodes on the skin
Permanent pacing- device implanted to monitor rhythm, detects delay and will send impulse

Question 5

what are the common symptoms with heart block?

Answer 5

bradycardia
syncope
chest pain

Question 6

where does Morbitz 1 occur?

Answer 6

within the AV node

- so effected by parasympathetic innervation

Question 7

where does Morbitz 2 occur?

Answer 7

below the AV node

- not effected by parasympathetic innervation