CVS Flashcards
Which murmurs would you expect to hear during systole?
- aortic stenosis
- mitral regurgitation
Which murmurs would you expect to hear during diastole?
- Aortic regurgitation
- mitral stenosis
How would you know if a murmur was systolic or diastolic?
Systolic -> occurs simultaneously with carotid pulse
Diastolic -> murmur occurs between carotid pulses
What are the symptoms of aortic stenosis?
SAD!
Syncope (exertional)
Angina
Dyspnoea
What are 3 causes of aortic stenosis?
- Congenital bicuspid valve
- degenerative calcification
- atherosclerosis
What would you hear on auscultation of someone with AS?
Ejection systolic murmur radiating to carotids
Louder on expiration
Silent S2
What is the management for aortic stenosis?
If asymptomatic -> manage conservatively with outpatient TTE every 1/2 years and safety netting r.e. dental hygiene and increased risk of IE
If symtpomatic -> aortic valve replacement/ TAVI
What would you expect to find on auscultation of someone with mitral regurgitation?
pansystolic murmur heard loudest over mitral area - radiating to axilla
What are 3 causes of mitral regurgitation?
- Infective endocarditis
- Acute MI
- Cardiomyopathy
What would you expect to find on auscultation of someone with aortic regurgitation?
Decrescendo early diastolic murmur heard loudest of left sternal edge
What would you expect to find on auscultation of someone with mitral stenosis?
low pitched, rumbling, mid-diastolic murmur heard loudest over apex
What would you expect to find on auscultation of someone with mitral stenosis?
low pitched, rumbling, mid-diastolic murmur heard loudest over apex
What signs might you expect to find in someone with aortic regurg? (2)
- waterhammer pulse
- wide pulse pressure
What ECG changes would you expect to see in someone with hypokalaemia?
U have no Pot and no T
but a long PR and a long QT
(u waves, small/absent T waves)
What ECG changes would you expect to see in someone with hyperkalaemia?
- tall, tented T waves
- broad QRS complexes
- loss of P waves
Give 5 causes of RBBB
- normal variant (old peeps)
- RVH
- PE
- MI
- cor pulmonale
What is the main feature of bundle branch blocks on ECG?
Broad QRS (>120ms)
Which leads should you look at to identify bundle branch clock?
V1 and V6
How would you identify atrioventricular delay on an ECG?
PR interval >0.2 secs/ 5 small squares
You are handed an ECG which shows progressive prolongation of PR interval until eventually QRS complex is dropped. What does this suggest?
Second degree AV block (type 1)
- i.e. Mobitz type 1/Wenckebach