Cardiovascular Flashcards
What does JVP measure
Pressure in right atrium (indirectly)
4 causes of raised JVP
Pqrst
- pericardial effusion/ tamponade ( cause Kussmaul’s sign- paradoxical increase JVP during inspiration); constrictive pericarditis
- quantity: Fluid overload
- right Heart failure
- superior vena cava obstruction
- tricuspid regurg (V waves), tricuspid stenosis;
Path of constrictive pericarditis
Pericardium thickens and scars leading to decreased elasticity
Def of cardiac tamponade
Accumulation of pericardial fluid under pressure in pericardial sac, leading to compression of heart
How to tell difference between JVP and carotid pulse
JVP has 2 pulses, carotid 1
JVP pulse not palpable, carotid is.
Normal JVP?
3Cm
Draw JVP waveform
See picture 1 internal medicine folder
What does A wave on JVP waveform represent
A for Atrial contraction
What does X descent on JVP waveform represent
First part after A wave: relaXation of atria
C = tricuspid closure
Second part after C wave: end of RV contraction. Creates space in pericardium so atria can expand. Thus passive atrial filling
What does C wave on JVP waveform represent
Start of systolic Contraction
C for Closure of tricuspid
What does V wave in JVP waveform represent?
Atrial relaxation, tricuspid still closed. Maximal atrial filling
V for villing (filling)
What does y descent in JVP waveform represent?
Tricuspid opening and emptYing of atrium
What can cause an absent A wave in the JVP waveform?
Atrial fibrillation
Bc a wave = atrial contraction. Not contracting properly.
Which 2 diseases can cause large A waves in JVP waveform?
RV hypentrophy (pulmonary ht/pulmonary stenosis) Tricuspid stenosis
Bc causes huge atrial contraction to overcome force
What can cause large V waves in JVP waveform?
Tricuspid regurgitation.
Bc makes atria super full
5 symptoms of LHF
Exertion dyspnoea Orthopnoea Paroxysmal nocturnal dyspnoea Cough W/ white frothy or pink sputum Fatigue
3 vital signs of LHF
Tachypnea
Hypotension
Tachycardia
Breathing pattern of LHF
Cheyne-stokes breathing
(Deep breathing then apnea)
JACCOLD signs of LHF
Peripheral and central cyanosis
Periph oedema due to associated RHF
Pulse of LHF
Tachycardia
Low pulse pressure
Pulsus alterans - rare
Apex beat of LHF (2)
Displaced
Gallop rhythm = extra heart sounds + tachycardia due to overload
( dyskinetic if had ant MI or has dilated cardiomyopathy)
Auscultate LHF ( 2)
Left ventricular s3 best heard at apex.
Functional mitral regurg secondary to valve ring dilatation
Lung findings LHF
Basal inspiratory crackles due to pulmonary congestion
Crackles and wheezes throughout due to pulmonary oedema
JVP signs LHF
Increased
Positive abdominojugular reflux test
4 broad causes of LHF and examples
- Cardiomyopathy: hereditary (dilated/hypertrophic) or acquired (secondary to thyrotoxicosis, viral disease, drugs etc)
- Ischaemic heart disease / coronary heart disease eg atherosclerosis
- Valve disease: aortic regurg or stenosis, mitral regurg,(PDA)
- Hypertensive heart disease
Symptoms of RHF (4)
Ankle/sacral/abdominal swelling
Anorexia
Lethargy
Dyspnea (poor pulmonary perfusion)
JACCOLD of RHF
Peripheral cyanosis
Pitting ankle and sacral oedema
Pulse in RHF
Low volume
JVP in RHF (3)
Raised
Kussmaul’s sign (increase on inspiration)
Large v waves (functional tricuspid regurg)
Chest palpation RHF
Right ventricular heave = RV hypertrophy = LLSB heave
If severe, epigastric heave
Auscultate RHF heart ( 2)
Right ventricular s3 best heard at lower left sternal edge but soft.
Pansystolic murmur of functional tricuspid regurg
Abdomen signs RHF (3)
Tender hepatomegaly - raised venous hepatic pressure
Pulsatile liver if tricuspid regurg
Ascites
5 broad causes and examples of RHF
- Chronic obstructive pulmonary disease (most common cause cor pulmonale)
- LHF
- Volume overload - ASD, primary tricuspid regurg
- Other causes pressure overload- pulmonary stenosis, idiopathic pulmonary HT
- Myocardial disease: R ventricular MI, cardiomyopathy
3 broad complications of mitral stenosis and examples of symptoms
Increased LA pressure (paroxysmal nocturnal dyspnoea )
Ruptured bronchial Veins (haemoptysis )
Pulmonary HT (oedema, fatigue)
Atrial fibrillation → thrombus
Face and neck signs of mitral stenosis (3)
Mitral faces
Normal JVP but prominent a wave if pulmonary HT, loss a wave if Afib
Vitals of mitral stenosis (4)
Tachypnea
HR+ BP may be normal or reduced volume
May be a-fib present due to LA enlarge
Chest palpation findings on mitral stenosis (3)
Apex beat tapping (short duration)
Palpable P2 if pulmonary HT
R ventricular heave
Findings on auscultation of mitral stenosis (5)
Diastolic murmur mid→late - low pitched and rumbling (use bell)
Loud s1
Opening snap before murmur “the OS is MS”
Louder on expiration (means murmur is on left), left lateral position, exercise
Late diastolic accentuation of murmur If sinus rhythm
2 causes of mitral stenosis
- Rheumatic fever!
- connective tissue disease: SLE, RA
- Congenital parachute valve (all chordae insert into one papillary muscle)
Chest palpation of mitral regurg findings (5)
Apex displaced, diffuse, hyperdynamic (forceful but ill sustained) - due to ventricular dilatation due to volume overload
Pansystolic thrill at apex
Parasternal impulse
How will anatomy of heart change in mitral stenosis and how will this complicate (5)
Left atrial dilatation
- leads to Afib → thrombus, embolism
- back flow to lungs → pulmonary congestion + oedema
- PHT
- RHF
- dysphagia: oesophagus compressed by dilated atrium
How will anatomy of the heart change in mitral regurg and how will this complicate
Left atrial (and ventricular) dilatation → cardiomegaly
Complications same as stenosis: lung and R heart pathology
Findings in auscultation of mitral regurg (7)
- pansystolic murmur
- Maximal at apex on inspiration, squat/leg raise, hand grip
- softer on valsalva
- Higher pitched and blowing character - use diaphragm
- Radiate to axilla!
- Soft/absent s1
- Left ventricular s3 due to rapid ventricular filling in early diastole.
7 causes of mitral regurg
Acute
→ organic (primary)
- Papillary muscle dysfunction or rupture (due to lhf or ischaemia)!
- Infective endocarditis
Chronic
→ organic (primary)
- Mitral valve prolapse!
- Degenerative myxomatous - ageing
- Connective tissue diseases- marfan’s, rheumatoid arthritis, ankylosing spondylitis
- Rheumatic fever!
→ functional (secondary)
- Cardiomyopathy (hypertrophic/dilated/restrictive) →> stretch valve
Symptoms of aortic stenosis (3)
SAD
Exertion all chest pain (angina) , dyspnoea and syncope.
Pulse in aortic stenosis
Slow rising ("anacrotic/late peaking” ) = pulsus parvus et tardus Small volume
Chest palpation aortic stenosis
Systolic thrill at heart base (2nd-3rd intercostal space)
Apex beat bounding
Auscultation aortic stenosis findings (6)
- S2 paradoxical split: Reversed = split during expiration (or narrowly split) s2 (due to delayed Lv ejection)
- Harsh midsystolic ejection murmur crescendo decrescendo
- Max over aortic area RUSB
- Radiate to carotid arteries!
- Loudest on expiration and sitting up, squat/leg raise; softer on valsalva
- Ejection click preceding murmur in congenital stenosis (absent if calcified value or if stenosis not at valve level)
(Associated aortic regurg Common)
6 causes of aortic stenosis
- Degenerative calcific aortic stenosis (elderly, common)!
- Congenital bicuspid valve (younger calcific, common)
- Rheumatic (common)
- Supravalvular obstruction ( narrowing of asc aorta or a fibrous diaphragm just above- rare. Characteristic facies of broad forehead, wide set eyes,pointed chin. Loud A2 and thrill at sternal notch)
- Subvalvular obstruction (membranous diaphragm or fibrous ridge just below. Ass w/ a until regurg)
- Aortic sclerosis in elderly (no periph signs)
Peripheral Pulse in aortic regurg?
Collapsing, water hammer pulse (bounding) - raise pt arm
Carotid pulse in aortic regurg
Prominent pulsations
If severe or combined w/ stenosis, bisferiens pulse (2 beats per cycle)
Head sign of aortic regurg
De Musset sign: head bobbing due to hyperdynamic circulation
Hands sign of aortic regurg
Quincke’s sign: capillary beds of fingernails pulsate
Chest palpation findings of aortic regurg (2)
Apex beat displaced and hyper kinetic (thrusting)
Diastolic thrill at left eternal edge when pt sit up and expirate
Auscultation findings of aortic regurg (6)
- A2 soft
- Decrescendo high-pitched (blowing) early diastolic murmur (diaphragm of steth ) at apex/LLSB
- Loudest at LLSB (radiate)Y
- Loudest on expiration and sit forward, squat/leg raise, hand grip
- softer on valsalva
- RADIATE to carotids
Usually systolic ejection murmur present: associated aortic stenosis/torrential flow
Austin-flint murmur may be present: low pitched rumbling mid-diastolic and pre - systolic murmur at apex from shuddering of mitral value due to regurgitant “jet”. NOT mitral stenosis bc s1 not loud and no opening snap.
Causes of aortic regurg (5)
CREAM
Chronic
- congenital eg bicuspid value and VSD; CTDs - aortic root dilatation: marfan’s syndrome, aortitis (RA); Calcified valve
• Rheumatic,
seronegative anthropathy esp ankylosing spondylitis
• Aortic root dilatation: idiopathic, aortitis (eg seroneg arthropathies, rheumatoid arthritis, tertiary syphilis!) dissecting aneurysm
Acute
• Endocarditis
• Marfan’s, Dissecting aneurysm.
Anatomical changes to heart in aortic stenosis and resulting complications (5)
LV hypertrophy
Asc aorta dilatation
3 complications = HHH
- Haemolytic anaemia due to high shear forces from valve
- HF
- Heyde’s syndrome (triad AS, GI bleed, acquired von Willebrand syndrome)
Anatomical changes to heart in aortic regurg
LV hypertrophy causing HF
JVP of tricuspid regurg (2)
Raised if RVF
Large v wave
Palpation chest findings of tricuspid regurg
Parasternal impulse
Auscultation findings of tricuspid regurg (2)
- Pansystolic high pitched blowing murmur at tricuspid area
- Increase on inspiration, squat/leg raise, hand grip
- decrease on valsalva
- S3, S4
Abdomen signs of tricuspid regurg (3)
Ascites
Pulsating, large, tender liver
May cause right nipple to “dance” in time with heartbeat
Possible lung signs of tricuspid regurg
Pleural effusions
Feet and legs findings of tricuspid regurg (2)
Oedema
Dilated pulsatile veins
7 causes of tricuspid regurg
- Functional due to right ventricular failure
- Rheumatic (associated mitral disease)
- Infective endo ( IV drugs)! “Do you want to tri some drugs”
- Tricuspid valve prolapse
- Congenital - Eibstein’s anomaly, Marfan’s
- RV papillary muscle infarction (can’t anchor chordae tendinae)
- Trauma esp steering wheel injury to sternum; catheter injury ‘
- Pulmonary hypertension!
- Carcinoid syndrome,
- Myxomatous valve degeneration
How do diastolic bp and standing help in the diagnosis of HT? (2)
Rise in diastolic on standing: essential HT
Fall: secondary cause or antihypertensives