Cardiology Flashcards
What clinical signs are associated with mitral stenosis?
Small pulse pressure Early opening snap (raised LA pressure) Mid-diastolic rumbling murmur Diastolic thrill at apex Pulmonary HTN - Loud P2 - Pulmonary regurgitation - RV heave - TR (can produce large V waves) - Prominent "a" wave
What are the clinical signs of aortic regurgitation?
Collapsing pulse / waterhammer pulse
Wide pulse pressure
Early diastolic murmur (aortic or left sternal edge)
What are the ECG findings in right ventricular hypertrophy?
Right axis deviation > 110
Dominant R wave in V1 (>7mm or R>S)
Dominant S wave in V5 or V6 (>7mm or S>R)
QRS < 120msec (not RBBB)
What findings would you expect in the following in mitral regurgitation:
- ECG
- CXR
- TTE
ECG: P mitrale, AF, LVH, Right axis deviation
CXR: LA enlargement, LV enlargement, mitral annular calcification, pulmonary HTN (large RA, prominent pulmonary arteries, pruning of peripheral pulmonary vessels)
TTE: thickened leaflets (rheumatic), prolapsing leaflet, LA size (chronicity and severity), LV size and function, L atrium regurgitant jet, mitral annulus calcification
What clinical signs are associated with aortic stenosis?
Pulse
- Low volume pulse with delayed upstroke (pulsus parvus et tardus). Sometimes anacrotic notch. Bisferens pulse if combined with AR.
Heart
- Heaving apex beat
- Systolic thrill over aortic region and carotids when sitting up in full expiration
- ES murmur radiating to carotids
- Soft S2
- Ejection click L sternal border
- S4
- S3
- Listen for early diastolic murmur (mild AR)
What clinical signs are associated with mitral regurgitation?
Pulse - bounding
Apex beat - laterally displaced , brisk/hyperdynamic
Heart sounds
- Holosystolic murmur after S1, best over apex
- Murmur usually radiates to axilla/back
- S3 and palpable thrill
- Soft S1
- Widely split S2 due to early A2 and late P2
Lungs - creps
What are the causes of mitral regurgitation?
Infective endocarditis
AMI
Surgery
Trauma
Degenerative disease
Mitral valve prolapse
Rheumatic
Papillary muscle dysfunction (LV failure or ischaemia)
Connective tissue disease (RA or AS)
Congenital - endocardial cushion defect, parachute valve, corrected transposition
What are the clinical signs of severity in mitral regurgitation?
Low volume pulse
Displaced apex beat
Systolic thrill
Soft S1 Early A2 (wide splitting) S3 S4 Diastolic rumble
Left ventricular hypertrophy
Left ventricular failure
Pulmonary HTN (late sign)
What are the clinical signs of severity in mitral stenosis?
Narrow pulse pressure Early opening snap Long duration of diastolic murmur Pulmonary HTN Pulmonary congestion Graham-Steell murmur (PR)
What are clinical signs of severity in aortic stenosis?
Low volume pulse Slow-rising pulse Plateau pulse Narrow pulse pressure Heaving apex beat Systolic thrill over aortic region Soft S2 Paradoxical splitting of S2 S4 Length, harshness and lateness of systolic murmur peak Pulmonary congestion Pumonary HTN
What are the signs of severity in aortic regurgitation?
Wide pulse pressure Long duration of decrescendo diastolic murmur 3rd heart sound Austin Flint murmur Signs of pulmonary HTN Signs of LV failure
What are the causes of a hyperdynamic circulation?
Exercise Pregnancy Fever Hypoxia Hypercapnia AVF Anaemia Beriberi (thiamine deficiency) Thyrotoxicosis
What are the causes of increased splitting (wider on inspiration) of S2?
MR
Pulmonary stenosis
VSD
RBBB
What are the causes of reversed splitting of S2?
AS
LBBB
Coarctation of the aorta
PDA (large)
What are the components of the hypertensive exam?
- Inspect: Cushing’s, acromegaly, uraemia, polycythaemia
Limbs
- BP in both arms and one leg
- Radio-femoral and radio-radial delay
- Vasculitic changes in upper limbs
Face
- Conjunctival injection (polycythaemia)
- Fundi for HTN changes
Chest
- LV failure (incl 4th heart sound)
- Coarctation (reversed splitting S2, posterior midsystolic murmur)
Abdomen
- Renal + adrenal masses
- AAA
- Renal bruits (just above the umbilicus, paramedially)
Flanks
- Systolic-diastolic murmur suggests renal AVF)
Extra
- U/A: casts, red cells