Ischaemic Heart Diseases

Question 1

What does a re-entrant tachycardia require?

Answer 1

A trigger, e.g a DAD
unidirectional propagation
a relatively short wavelength (refractory period x conduction velocity)

Question 2

Why can a tachycardia be polymorphic

Answer 2

re-entrant is not anchored around one place

Question 3

ST elevation and leads associated to give territory and artery located

Answer 3

1, V5, V6, aVL: lateral: circumflex
2,3, aVF: Inferior: right coronary posterior descending
V1, V2: septal: LAD
V3,V4: anterior: LAD