Cardiology Flashcards
How do you differentiate between AS and HOCM?
Valsalva - AS will be softer and HOCM will be louder
What are the differential diagnoses of an ejection systolic murmur?
Ejection systolic murmur may occur during a hyperdynamic state requiring more blood to be pumped out (tachycardia).
- AS
- HOCM
- Atrial Septal Defect (normal S1, S2; fixed splitting of S2, doesn’t vary between inspiration/expiration)
- Pulmonary stenosis (louder on inspiration)
- Anaemia
- Hyperthyroidism
- Pregnancy
- Sepsis (normal S1, S2)
- End stage liver failure
- Coarctation of aorta (normal S1, S2; radio-femoral delay)
What are the triggers of AF?
P - PE/COPD
I - Ischaemia
R - Rheumatic fever
A - Anaemia
T -Thyrotoxicosis
E - Endocarditis
S - Sepsis/SSS
What are the differential diagnoses of a pan-systolic murmur?
- Tricuspid regurgitation
- Mitral regurgitation
- Ventricular septal defect (normal heart sounds)
What are the causes of mitral regurgitation?
- Mitral valve prolapse
- Rheumatic heart disease
- IHD –> rupture of chordae tendinae/valve attachment
- Dilated cardiomyopathy
- Infective endocarditis
What are the features of aortic stenosis?
- Syncope
- Angina
- Dyspnoea
- Harsh ejection systolic murmur best heard at aortic area radiating to carotids
- Narrow pulse pressure
- Low volume/plateau/slow-rising carotid pulse
- Softer A2
- LVH
How do you differentiate between aortic stenosis and aortic sclerosis?
Aortic sclerosis has no radiation to the carotids, no apex beat displacement, a normal A2 and no thrill
What are the signs of left heart failure?
- Orthopnoea
- PND
- Pulmonary oedema
- Fatigue
What are the causes of left heart failure?
- Iscahemia
- HTN
- CM
- VHD
What are the precipitants of heart failure?
I - Ischaemia
I - infection
A - arrhythmia
A - anaemia
What is the NYHA classification?
I - normal (no limitation on physical activity)
II - mild (comfortable at rest but SOB on physical activity)
III - moderate (comfortable at rest but SOB on mild activity)
IV - severe (SOB at rest)
What are the signs of right heart failure?
- Peripheral oedema
- Elevated JVP
- Ascites
- Tender hepatomegaly
What are the symptoms of right heart failure?
F - Fatigue
A - Ankle swelling
C - Cerebral (faints)
I - Increased urinary freq
A - Anorexia
L - Liver congestion
P - Palpitations
A - Ascites
N - Nausea
What are the causes of aortic stenosis?
- Senile calcification
- Congenital bicuspid valve
- Rheumatic fever
- Severe hypercholesterolaemia
What are the causes of aortic regurgitation?
- Rheumatic fever + subacute IE
- Bicuspid valve
- RA
What are the causes of mitral stenosis?
- Rheumatic heart disease
- Congenital
What are the symptoms of mitral regurgitation?
- Palpitations
- SOBOE
- Fatigue/weakness
- Orthopnoea (pulmonary oedema)
What are the signs of mitral regurgitation?
- Pan-systolic murmur best heard at apex, radiating to the axilla
- LVD
- S1 soft, S3 present
- LV failure
What are markers of severity of mitral regurgitation?
- S3
- LVF
- diffuse displaced apex beat
What are the symptoms of aortic regurgitation?
- Palpitations
- Dizziness
- Symptoms of LVF (dyspnoea)
- Angina
What are the signs of aortic regurgitation?
- Early diastolic rumbling murmur (Austin-flint)
- Collapsing water-hammer pulse, ‘head-nodding’
- Nail bed pulsation
- Wide pulse pressure
- LVH
What are the symptoms of mitral stenosis?
- Progressive SOBOE
- Pulmonary congestion (Orthopnoea, PND, Cough/haemoptysis)
- Later –> RV failure
- Palpitations due to paroxysmal AF
What are the signs of mitral stenosis?
- Mid-diastolic murmur heard loudest at the apex
- Mitral flush
- Low volume pulse +/- AF
- Low pulse pressure
- Tapping apex beat
- L parasternal heave
- Diastolic thrill
What are the causes of dilated cardiomyopathy?
- Idiopathic (50%)
- Genetic (25%)
- Alcohol
- Inflammatory (SLE, SS)
What are the signs and symptoms of dilated cardiomyopathy?
- Signs of CCF
- Syncope
- Sudden cardiac death (esp. in young children whilst playing sports)
- New onset murmur (regurgitant type)
- AF
- Diffuse apex beat
What are the investigations for dilated cardiomyopathy?
- Bedside: ECG - non-specific changes
- Bloods: FBE, UEC, LFTs
- Imaging - CXR - global/ball shaped heart
- Echo - dilatation of L/R/both ventricles
- Angiogram - to rule out CAD
What is the management of dilated cardiomyopathy?
- Managing heart failure symptoms:
- ACEi/ARBs
- B-Blockers
- Spironolactone - Managing arrhythmias/SCD:
- PPM/ICD (if EJ heart transplant (but quite rare & long waiting period)
What are the causes of HOCM?
- Familial/genetic
- Acquired due to chronic HTN
- Idiopathic
How would you rate control a patient with AF?
- Metoprolol/dilitaizem (1st line)
- Digoxin
- Anti-coagulation if necessary
How would you rhythm control a patient with AF?
- Medical: Amiodarone
- Electrical: DC cardioversion
- Anti-coagulation if necessary
After how many times do you need to have AF to have ‘recurrent AF’?
2
What characterises paroxysmal AF?
Self-terminating episode within 7 days