Cardiovascular Flashcards
Symptoms and signs of AAA?
- Epigastric pain
- Radiates to back
- Severe
- Syncope
- Shock
• Grey-Turner’s sign
Investigation for AAA?
- Aortic ultrasound (doesn’t visualise leak)
2. CT contrast to visualise leak
Symptoms and signs for aortic dissection?
- Sudden tearing pain
- Radiation to back, between shoulder blades
- Symptoms of organ hypoperfusion
• Pulsus paradoxus (large decrease in SBP and pulse wave amplitude during inspiration)
Signs for aortic regurgitation?
- Early diastolic murmur
- Collapsing pulse
- Wide pulse pressure
- Displaced and heavy apex beat
Most common cause of aortic stenosis?
Worldwide - rheumatic heart disease
UK - calcification
Symptoms and signs of aortic stenosis?
- Angina
- Syncope
- Heart failure symptoms (dyspnoea/orthopnoea)
- Ejection systolic murmur
- Narrow pulse pressure
- Slow-rising pulse
- Aortic thrill
- Thrusting apex beat
Signs and symptoms of arterial ulcers?
- Punched-out
- Hairless
- Nail dystrophy and absent pulses downstream
- Night pain
- Symptoms of acute limb ischaemia (6 Ps)
Investigation for arterial ulcers?
- Duplex ultrasonography
2. ABPI
What are the causes of AF?
- Thyrotoxicosis
- HTN
- Pneumonia
- Alcohol
- IHD
- Cardiomyopathy
- Pericarditis
- Atrial myxoma
- Bronchial carcinoma
- PE
Management for AF and how do you manage stroke risk (low and high risk)?
Rhythm control if haemodynamically unstable e.g. angina
• < 48 hours (acute) - cardioversion : DC or chemical (flecainide, or amiodarone if IHD)
• > 48 hours (chronic) - anticoagulate with DOAC for 3-4 weeks, then cardioversion
Then rate control
- Bisoprolol or verapamil
- Digoxin or amiodarone
Paroxysmal AF - pill in pocket (flecainide)
Manage stroke risk
• Low risk - aspirin
• High risk - warfarin
What is used to assess the risk of stroke in AF patients? What does each score mean?
CHADS-vasc score
0 - low
1 - moderate
> 1 - high
What are the 8 reversible causes of cardiac arrest?
- Hypokalaemia
- Hypothermia
- Hypovolaemia
- Hypoxia
- Tamponade
- Tension pneumothorax
- Thromboembolic
- Toxins
Management for cardiac arrest (BLS)?
- pre-cordial thump
* 2 rescue breaths, 30 chest compressions
Management for cardiac arrest (ALS)?
Pulseless VT / VF (shockable)
• shock + CPR
• adrenaline
• amiodarone
Pulseless electrical activity / asystole (non-shockable)
• Above, but just adrenaline
Which electrolytes do you measure in AF? When is there a risk of digoxin toxicity?
- Potassium
- Magnesium
- Calcium
Risk of digoxin toxicity if potassium/ magnesium is low, or calcium is high
What are the symptoms and signs of left and right cardiac failure?
Left heart
• dyspnoea
• orthopnoea
• paroxysmal nocturnal dyspnoea
• tachycardia, tachypnoea • displaced apex • bi-basal crackles • S3 gallop • pan-systolic murmur (• acute: + pulsus alternans)
Right heart
• swollen ankles
• fatigue, difficulty exercising
• anorexia, nausea
- raised JVP, kussmaul sign
- hepatomegaly, ascites
- ankle/sacral oedema
- tricuspid regurgitation
What is used to measure pressure in vessels (cardiac failure)?
Swan-Ganz catheter
Investigation for heart failure? What is systolic and diastolic HF?
- BNP
- Best diagnostic - Transthoracic echocardiogram (TTE) coupled with doppler
• EF < 40% - systolic HF
• EF > 50% - diastolic HF
- ECG
- CXR
Management for acute LV failure?
1. Treat pulmonary oedema • Sit up • 60-100% O2 • IV furosemide • Diamorphine • GTN infusion
- Treat cardiogenic shock (SBP < 90)
• inotropes e.g. dobutamine - Monitor essential stats
Management for chronic LV failure? What should you avoid?
- Lifestyle changes
- ACEi (ARB if contraindicated) + beta blocker + furosemide
- Hydrazaline + isosorbide dinitrate, if 1. contraindicated
- Severe symptoms or EF <35%, consider cardiac resynchronisation
Avoid NSAIDs and non-dihydropiridine CCB
Causes of dilated, hypertrophic and restrictive cardiomyopathy?
Dilated - alcohol, drugs, post-viral, thyrotoxicosis
Hypertrophic - genetic
Restrictive - amyloidosis, sarcoidosis
Symptoms/presentation of dilated, hypertrophic and restrictive cardiomyopathy?
Dilated - HF symptoms, arrhythmias, FHx sudden death
Hypertrophic - asymptomatic, syncope, FHx sudden death
Restrictive - Kussmaul sign (paradoxical JVP rise), S3
Investigations for cardiomyopathy?
Diagnostic: echo
• CXR
• ECG
Symptoms and signs of constrictive pericarditis?
- Gradual onset
- Advanced - jaundice, cachexia, muscle wasting
- RHF signs e.g. dyspnoea, peripheral oedema, Kussmaul’s sign S3
Causes of constrictive pericarditis?
- TB
- Virus
- Post-surgical
What is the diagnostic investigation for constrictive pericarditis and what would you would you see in other investigations?
Diagnostic: echo (distinguish from restrictive cardiomyopathy)
• CXR (calcification)
• CT / MRI (thickness)
• Pericardial biopsy
Management for constrictive or normal pericarditis? Management if acute/purulent?
- NSAIDs + PPI (consider colchicine if idiopathic/viral)
- Corticosteroids
- Immunosuppression e.g. azathioprine
- Surgical pericardiectomy
acute: pericardiocentesis - ABx if purulent
How the risk for DVT is calculated?
Wells criteria
• 2 or more = high risk
Investigations for DVT?
Wells score < 2
- D-dimer
- if normal: DVT excluded. if elevated: do duplex USS (gold standard)
Wells score 2 or more
1. duplex USS
Pregnant
1. duplex USS
PE suspected - also do ECG, CXR, ABG
Management for DVT?
- Anticoagulation
• Warfarin
• LMWH whilst waiting for Warfarin to get to INR target (2-3), as it’s prothrombotic for first 48 hours
Below knee DVT - 3 months of anti-coag + obs
Above knee DVT - 6 months of anti-coag + obs
- IVC filter - if anti-coag contraindicated / high risk of PE
- Prevention
• Graduated compression stockings
• Mobilisation
• Prophylactic heparin in high risk patients
Management for dyslipidaemia?
- Lifestyle advice
- Medication
… 1. Statins
… 2. Cholesterol absorption inhibitors e.g. ezetimibe, or fibrates (best for hypertriglyceridaemia)
Is gangrene and necrotising fasciitis common or rare?
Gangrene - common
• Necrotising Fasciitis - rare
Investigation for gangrene and necrotising fasciitis?
Diagnostic: MC+S tissue swab
• Blood test for infection (FBC, CRP)
• Blood culture
• X-ray (gas gangrene)
Compare the different types of gangrene + NF
- Dry gangrene - necrosis, no infection
- Wet gangrene - necrosis and infection, pus and strong odour
- Gas gangrene - necrosis, crepitus, oedema
- NF - erythema, oedema, haemorrhagic blisters, signs of sepsis
Describe the different types of heart block on ECG
- 1st degree - prolonged PR interval
- 2nd degree MT1 - PR gradually increases, then no QRS after p wave, repeats
- 2nd degree MT2 - PR fixed in duration, not every p wave has a QRS after
- 3rd degree / complete - no relationship between p wave and QRS complexes
Presentation of heart block? Which ones actually have symptoms?
Only MB2 and 3rd degree usually have symptoms
• Stokes-Adams attack - syncope from ventricular asystole
• Dizziness, palpitations, chest pain, HF
• Large volume pulse
• Cannon A waves
Investigations for heart block?
- ECG (gold standard)
- Bloods - troponin, potassium, calcium, digoxin, cardiac enzymes
- Echo
Management for heart block?
Asymptomatic (1st degree, MT1?)
1. monitor
Symptomatic
- discontinue AV nodal blocking meds e.g. beta blockers
- consider permanent pacemaker or cardiac resynchronisation
(atropine no longer indicated?)
What causes isolated systolic hypertension?
Stiffening of large arteries
most common form in UK
What is malignant hypertension?
Rapid rise in BP leading to vascular damage
Bilateral retinal haemorrhages + exudates
Hallmark: fibrinoid necrosis
Outline the Keith-Wagner classification of hypertensive retinopathy?
Grade I - Silver wiring
Grade II - Silver wiring + AV nipping
Grade III - flame haemorrhage, cotton wool spots
Grade IV - papilloedema - requires admission
Diagnosis and investigations for hypertension?
Diagnosis: if BP 140/90 - 180/120, ABPM used to confirm
• ECG - left ventricular hypertrophy
• Bloods - U&Es, cholesterol, blood glucose
• Urinalysis