cardio SBAs Flashcards
Most definitive investigation for prosthetic valve endocarditis
Transoesophageal echocardiography
Marfan’s syndrome (autosomal dominant) CVS criteria
Aortic dissection
Aortic dilatation
Mitral valve calcification
Mitral valve prolapse (with or WITHOUT regurg)
Atrial myxoma on auscultation
Loud S3
Will present with non-specific symptoms of fever, SOB, syncope. Blood tests = raised ESR and TOE diagnoses.
62 year old man with enlarging pulsatile mass in left groin. 3 days previously he had had a coronary angiogram.
False aneurysm, most are due to iatrogenic trauma
Metabolic syndrome includes
insulin resistance IGT central obesity dyslipidaemia hypertension
Risk of developing T2DM is 5x higher in those with metabolic syndrome.
50 yr old man presents with typical history of exertional angina with ischaemic changes on resting ECG. Coronary angiography shows 70% stenosis of LAD, no lesions elsewhere. What should treatment be?
Those with LMS disease, 3 vessel disease or a reduced EF may benefit from CABG. Most single vessel disease can be adequately managed with PCI.
Young male with hypertension and LVH likely diagnosis and presentations?
Coarctation of aorta
High BP
RF delay
Mid-systolic murmur in aortic area that radiates to back
Diagnosis of phaeochromocytoma
Urine metanephrines (metadrenalines) Sensitive and specific
[Rx = a-blockers then b-blockers]
Constrictive pericarditis (chronic) signs + symptoms
Pleuritic chest pain
Quieter S1 and S2 sounds due to pericardium wall thickened
Increased JVP on inspiration (Kussmaul’s sign)
Pulsus paradoxus (low systolic BP >10mmHg on inspiration)
Hepatomegaly
Ascites, oedema, AF
Widespread saddle-shaped ST segments
Cannon ‘a’ waves on JVP
Complete heart block
Single chamber ventricular pacing
Ventricular arrythmias (e.g. sustained VT - broad QRS)
Ventricular ectopics
Non-sustained VT is defined by
> 5 consecutive heartbeats within 30secs
Torsades de pointes
irregular QRS complexes and prolonged QT interval
a type of polymorphic VT. Can develop into cardiac arrest. Rx: IV magnesium sulfate and ventricular pacing
Variant (Prinzmetal’s) angina
random ST elevation (can be at rest)
HOCM is associated with risk of sudden death. Treatment includes
- b-blockers
2. CCBs
Pregnant hypertensive patients Rx
- methyldopa (a2-receptor agonists)
2. b-blockers
Symptoms of left ventricular failure
Exertional dyspnoea Palpitations/AF Atypical chest pain Displaced apex beat Bibasal crackles (pulmonary congestion)
Mitral regurg (backwars flow form LV to atrium in systole) common causes…
Rh heart diease
Infective endocarditis
Mitral valve prolapse (post-MI)
Types of cardiomyopathy
- restrictive
- dilated
- hypertrophic
Cardiac tamponade is caused by pericarditis. Tachycardia and pulus paradoxus are signs, along with Beck’s triad of…
- Increased JVP
- Decreased BP
- Muffled heart sounds
Aortic dissection investigations and treatment
CXR - widening of aorta
CT/MRI scans - diagnostic. If confirmed, BP reduction and dampening of aortic systolic wave by b-blockers and consider urgent surgery
A 12 year old boy presents with polyarthritis and abdominal pain. He had a sore throat about a week ago. Examination reveals an early blowing diastolic murmur at the L sternal edge. There are bilateral involuntary jerky movements worse when the patient is asked to make a movement. What is the likely diagnosis?
Rheumatoid fever.
Caused by an AI process post-strep (group A) infection.
5 major manifestations of acute rheumatic fever are carditis, polyarthritis, chorea, erythema marginatum and subcutaneous nodules.
Other signs can also be seen e.g. spooning sign and pronator sign.
A 16 year old boy presents with 5 month history of chest pain on exertion and two episodes of collapse in the last month. There is also progressive SOB on exertion and now he cannot walk up the stairs without stopping. Examination reveals a loud systolic murmur. What is the likely diagnosis?
Aortic stenosis
It can present with chest pain, dyspnoea and syncope
The pulse pressure is narrow and there may be an associated slow-rising and plateau pulse.
This is a congenital cause (HOCM causes pan-systolic murmur)
A 13 year old girl presents with increasing SOB, particularly when lying down at night to try to sleep. She has also noticed some ankle swelling. Examination reveals a raised JVP, tachycardia and an S3 gallop rhythm on cardiac auscultation. What is the likely cause?
CCF (congestive cardiac failure)
SOB with orthopnoea due to the sudden increase in pre-load, indicates LV failure.
A 70-year-old diabetic male presents with severe pain in his L foot. The pain is at rest and is alleviated by hanging his leg off the foot of the bed at night. O/E: advanced gangrene with superimposed infection of the left foot with absent dorsalis pedis and posterior tibial pulses. What is the likely diagnosis?
There is advanced gangrene here - complication of necrosis. It can be due to ischaemia, trauma or infection. With severe limb sepsis, amputation is needed.
Diabetes (high glucose, impaired immunity, peripheral neuropathy and arterial disease) is a RF here for infectious and ischaemic gangrene. Absent pulses and symptoms = critical limb ischaemia, with diabetic chronic peripheral arterial disease.