Cardiology Flashcards
What is seen on ECG in HOCM?
Deep/Amplified Q waves
Inverted T waves
LVH
What is seen on echo in HOCM?
MR SAM ASH
Mitral regurg
Systolic anterior moton
Asymmetric hypertrophy
Which drugs should be avoided in HOCM?
ACEi
Nifedipine
Nitrates
What are signs of HOCM?
Ejection systolic murmur loudest at LLSE
Jerky pulse
Displaced apex beat
Apical thrill
What are causes of dilated cardiomyopathy?
Idiopathic (most common)
Coxsackie B
Alcohol, cocaine
Peripartum
What are signs of dilated cardiomyopathy?
Features of HF
Systolic murmur
S3 sound
Displaced apex beat
What is Brugada syndrome?
Genetic condition caused by sodium channelopathies
What is the diagnostic criteria for Brugada syndrome?
VF or polymorphic VT (Torsades des pointes)
Family history of sudden cardiac death <50
Syncope
Nocturnal agonal breathing
What are risk factors for sudden cardiac death in Brugada Syndrome?
Fever Excess alcohol Dehydration Hypokalaemia Hypomagnasaemia
What are the diagnostic criteria for IE?
Need 2 major or 1 major + 3 minor or 5 minor
Major criteria=
Positive blood cultures
Evidence of endocardial involvement
Minor criteria= IVDU or other predispositon Fever Vascular phenomena Immunological phenomena
What are the diagnostic criteria for rheumatic fever?
Need evidence of recent strep + 2 major or 1 major + 2 minor
Evidence of recent strep = positive throat swab or increased strep antibodies
Major criteria = JONES Joints - Arthritis Pericarditis/Valvulitis Nodules (subcutaneous) Erythema marginatum Sydenham's chorea
Minor criteria Raised CRP/ESR Fever Arthralgia Prolonged PR interval
How is rheumatic fever treated?
Pen V
NSAIDs
What to do after fibrinolysis in STEMI?
Repeat ECG in 60-90 mins
If ST elevation not resolved – urgent PCI
How to manage a patient who has received a PCI but is still experiencing pain or haemodynamic instability?
Urgent CABG
What further drugs can you consider adding in heart failure? (After ACEi, BB and Spironolactone)
Hydralazine + nitrate (especially in black/Caribbean)
Digoxin
Ivabradine (if in sinus rhythm >75bpm and left ventricular fraction <35%)
What is the criteria for starting Ivabradine in HF?
if in sinus rhythm >75bpm and left ventricular fraction <35%
What are contraindications to adenosine?
Asthma/COPD
Heart failure
Heart block
Severe hypotension
What are the 4 stages of hypertension?
Stage 1 = >140/80
Stage 2 =>160/100
Stage 3=Systolic >180 or diastolic >110
When to offer drug treatment for Stage 1 HTN?
If the patient is LESS THAN 80 plus has one of the following:
Target organ damage
Established cardiovascular disease
Renal disease
Diabetes
10 year cardiovascular risk of 10% or over
How should you mange acute heart failure not responding to treatment?
CPAP
How can raised ICP show on an ECG?
Long QT
When do beta blockers need to be stopped in heart failure?
Heart rate less than 50 BPM
2nd or 3rd degree AV block
Shock
What is the major contraindication to Verapamil?
Ventricular tachycardia
What should you consider in someone with a stroke/TIA/PE and a fever?
Infective endocarditis
P450 Inhibitors
SICKFACES.COM
Sodium valproate Isoniazid Clarithromycin Ketoconazole Fluconazole Acute alcohol/Amiodarone/Allopurinol C Erythromycin SSRIs Ciprofloxacin Omeprazole Metronidazole
P450 inducers
CRAPGPS
Carbamazepine Rifampicin Alcohol - chronic Phenytoin G Phenoarbital St John's Wort Smoking
What is the post-MI management?
75mg aspirin
75mg clop/tic/pras
80mg statin
ACEi + BB (Consider diltiazem/Verapamil)
Restrictive cardiomyopathy
x
How does left ventricular free wall rupture present? How is it managed?
1-2 weeks post MI
Raised JVP
Muffled heart sounds
Pulsus paradoxus
(similar to cardiac tamponade)
Management = urgent pericardiocentesis
What does persistent ST elevation after an MI indicate?
Left ventricular aneurysm
What is the most common cause of death following an MI?
Ventricular fibrillation –> Cardiac arrest
What drug should be given during CPR if a PE is suspected?
Alteplase
Which antihypertensive should be avoided in DM?
Thiazide-like - can worsen glycemic control
How to manage heart block with an INFERIOR MI?
This is common - treat conservatively if haemodynamically stable
How to manage heart block with an ANTERIOR MI?
Transcutaneous pacing
Which MI most commonly causes heart block?
Inferior MI (RCA)
What is the other most common cause of raised BNP as well as HF?
CKD
What medications should all patients diagnosed with CVD e.g. Angina/PAD be offered as primary prevention?
A statin and an anti-platelet (Clopidogrel)
What classes as postural hypotension?
A drop in systolic BP of 20mmHg or more (with or without symptoms)
A drop to below 90mmHg on standing even if the drop is less than 20mmHg (with or without symptoms)
A drop in diastolic BP of 10mmHg with symptoms (although clinically much less significant than a drop in systolic BP).
What causes mitral regurgitation after an MI?
Ruptured papillary muscle
Presents with acute hypotension + pulmonary oedema
What are side effects of adenosine?
Bronchospasm
Flushing
Chest pain
When do you start sacubitril-valsartan in heart failure?
x
What is the first line investigation for angina?
Contrast enhanced coronary CT angiography
How does Coarctation of the aorta present in adults?
Hypertension
Notching of the inferior border of the ribs “Rib notching”
Radio-femoral delay
What counts as major bleeding in wafarin guidelines?
Bleeding which causes tachycardia/hypotension
Bleeding into critical site
Someone diagnosed with AF whilst in for a stroke. When to start anticoagulation?
After 2 weeks of antiplatelet therapy
What kind of murmur does a tricuspid regurg cause?
Pansystolic murmur
Loudest on INSPIRATION (RILE)
What are the differentials of a pansystolic murmur?
Mitral regurgitation —> soft S1
Tricuspid regurgitation —> pulsatile hepatomegaly
What are the differentials of an ejection systolic murmur? What can differentiate them?
Aortic stenosis —> narrow pulse pressure, slow rising pulse, loudest in RUSE
Pulmonary stenosis —> loudest in LUSE
ASD —> widely split S2
How to manage a large PE which is causing hypotension?
Alteplase
What are ECG changes in hypokalaemia?
U waves
Flattened T waves
Prolonged PR
Prolonged QT
How does myocarditis present and what is is seen on ECG? How is it managed?
Myocarditis = inflammation of the myocardium
Usually young patient with chest pain and acute pulmonary oedema - doesn’t change with position like pericarditis does
Associated with signs of infection
ECG = tachycardia, ST elevation, T wave inversion
Management = supportive
How long after an MI do you need to stop driving?
Cannot drive for 4 weeks
How does Warfarin affect clotting results?
Prolonged APTT
New presentation of severe hypertension. (systolic >180, diastolic >110) - what investigations?
- Look for signs of retina haemorrhage or papilloedema
- Or life threatening symptoms - chest pain, confusion, heart failure, AKI
- Referral if pheachromocytoma is suspected
- If none of above - bloods, urine creatinine, ECG (to look for end organ damage)
How can you differentiate tricuspid regurg and mitral regurg?
Both pansytolic murmur
Mitral= loudest on expiration
Tricuspid = loudest on inspiration
What are side effects of adenosine?
Chest tightness
Flushing
Feeling of impending doom
How long to continue post-MI drugs for?
Continue all long term except stop second anti-platelet (not aspirin) after 12 months
How long does troponin stay raised after an MI?
10 days
If another MI within 10 days suspected - check creatinine kinase MB (CK-MB)
If someone with AF has a cha2ds2vasc score of 0 (or 1 in women), what do you need to make sure before not anticoagulating them?
Conduct an echo
If they have a valvular heart disease they need to be put on an anticoagulant
Which drugs may you need to consider stopping in CHF?
Calcium channel blockers - can depress cardiac function and exacerbate symptoms Tricyclic antidepressants NSAIDs - risk of decompensation Corticosteroids QT prolonging medication
What are signs of acute heart failure?
Cyanosis Tachycardia Tachypnoea Raised JVP Displaced apex beat Bibasal crackles Wheeze S3 heart sound
What other features are seen in mitral regurgitation? (as well as pan systolic murmur)
Soft S1
Widely split S2
S3 sound
How is pericarditis diagnosed?
Transthoracic echo
Which leads is it normal for the T wave to be inverted?
Lead V1 and avR
Can also be normal in lead I, avL and V6
Can also be normal in lead III
How is Wolff-Parkinson White Syndrome seen on an ECG?
Short PR interval Broad QRS Delta wave Left or right axis deviation Pseudo-Q waves
How can Digoxin use affect an ECG?
U waves Short QT interval Downward sloping ST depression (scooped out appearance) T wave flattening Arrhythmias - AV block
How does digoxin toxicity present?
Generally unwell, N+V, anorexia
Confusion
Yellow green vision
Arrhythmias - AV block, bradycardia
Gynaecomastia
What can precipitate digoxin toxicity?
Classicially HYPOKALAEMIA
Also renal failure and other electrolyte disturbances - hypomagnasaemia, hypercalcaemia, hypernatraemia
Drugs=Amiodarone,Verapamil,Diltiazem,Ciclosporin
Drugs which cause hypokalaemia e.g. thiazides and loop
How does aortic dissection present?
Chest pain radiating to back
Pulse deficit – weak/absent pulses
Variation in systolic BP between the two arms
Aortic regurg