Cardiovascular Conditions Flashcards
Define AR
Backflow of blood from aorta to LV due to insufficient valve in diastole
Aetiology AR
Aortic valve dysfunction
- Infective endocarditis
- RHD
- Bicuspid Valve
Aortic dilatation
- Severe HT
- Aortitis
Dsypnoea
Orthopnoea
Angina
Syncope
Water hammer pulse
Wide pulse pressure
Early diastolic murmur heard best over left sternal edge with pt sitting forward
Aortic Regurgitation
Investigations AR
CXR
- Cardiomegaly
- Ascending aorta dilatation
ECG
- Signs of LVH
ECHO
- Doppler echo for diagnosis
- may show underlying cause
Cardiac catherterisation
- If uncertain about state of ventricle
Define AS
Obstruction of blood flow across aortic valve due to pathological narrowing
Aetiology AS
Senile calcification due to ageing
Rheumatic heard disease
Bicuspid valve (calcification)
Angina
Syncope
HF symptoms
Narrow Pulse pressure
Slow rising pulse
Thrill in aortic area (palpable murmur)
Ejection systolic murmur at aortic area radiating to carotid
AS
Investigations AS
ECHO
- Visualises structural changes of valve
ECG
- Signs of LVH
CXR
- Calcification of valve
Cardiac angiography
- allows differentiation from other angina causes
Define MR
Backflow of blood from LV to LA due to mitral valve insufficiency
Aetiology MR
Valve leaflet abnormality
- Mitral valve prolapse
- Infective endocarditis
- Connective tissue disorders (Ehler’s Danlos, Marfans)
Annulus issue
- LV dilatation
- RHD
Chordae tendinae/papillary muscle
- Damage of papillary muscle due to MI/IHD
Exertional Dyspnoea
Maybe palpitations
Fatigue
Apex beat laterally displaces
Pan systolic murmur heard best at apex with radiation to axilla
Could be mid systolic click with late systolic murmur
MR
Investigations MR
ECG
- May show AF/broad bifid P wave (LA dilation)
CXR
- LA enlargement
- Cardiomegaly
- Mitral valve calcificaiton
ECHO
Define Mitral Stenosis
Obstruction of blood flow from LA to LV due to mitral valve narrowing
Aetiology Mitral Stenosis
RHD
Fatigue SOB Palpitations Dyspnoea Hoarseness, dysphagia, bronchial obstruction
Peripheral cyanosis
Irregularly irregular pulse
Parasternal heave
Mid-diastolic murmur
Mitral Stenosis
Investigations Mitral stenosis
ECG
- bifid p wave
- AF
CXR
- LA enlargement
- Cardiomegaly
ECHO
Cardiac catheterisation
- severity of HF
Define rheumatic fever
Inflammatory multisystem disorder, following infection with group A beta haemolytic streptococci
Aetiology rheumatic fever
Strep pharyngeal infection
Molecular mimicry to initiate tissue injury