interactive cases i Flashcards
What are the ix for chest pain?
1) ECG
2) Troponin
+ve: coronary angiography
-ve: ETT
3) Echocardiography
What are cardiac ddx of chest pain?
IHD
Aortic dissection
Pericarditis
What are resp ddx of chest pain?
PE
Pneumonia
Pneumothorax
What are GI ddx of chest pain?
Oesophageal spasm
Oesphagitis, gastritis
What is a musc ddx of chest pain?
Costochondritis
If pt has a drug hx of dexamethasone with a pc of chest pain, what does this point towards?
Dexamethasone is an immunosuppresant thus increased risk of inflammation/infection => GI => oesophagitis
Which leads would you see a STEMI for:
a) anteriolateral STEMI,
b) inferior STEMI?
a) V2-6, I, VL
b) II, III, VF (with reciprocal changes in I + VL)
What’s the treatment once identifed an anteriolateral STEMI?
Percutaneous coronary intervention
Name the coronary artery and leads affected for the following:
a) anterior MI
b) lateral MI
c) inferior MI
a) LAD, V1-4
b) Circumflex, V5-6, I, VL
c) RCA, II, III, VF
What in a collapse hx points towards a cardiac cause?
Before - no warning
During - no tongue biting
After - not confused
What are ddx of collapse?
Hypoglycaemia - do not ever forget glucose Heart - Vasovagal - Arrhythmia: unexplained death in FH - Outflow obstruction: dizziness, exertional chest pain - Postural hypotension: lying + standing BP different Brain - Seizures
Name left and right-sided causes of outflow obstruction to the heart
Left: aortic stenosis, HOCM
Right: PE
Causes of long QT syndrome
Congenital - K+ channel mutations - sudden death in FH Acquired - low K+/Mg2+, drugs
Cardiac causes of increased JVP
RHF - secondary to LHF - pulmonary HTN Tricuspid regurg - valve leaflets - R ventricle dilatation Constrictive pericarditis - infection; TB - inflammation; connective tissue disease, i.e. lupus - malignancy
Name four systolic murmurs (whooshing sound) and how to differentiate them
Aortic stenosis - loudest at aorta - radiates to carotids Mitral regurg - loudest at mitral v - radiates to axilla Tricuspid regurg - loudest at tricuspid v VSD (ventricular septal defect) - occurs in young person w/o features of cardiac disease