Acute coronary syndrome

Question 1

2 major categories

Answer 1

Non-ST elevation: Unstable angina or non-ST elevation MI

ST segment elevation MI

Question 2

Asymptomatic MIs

Answer 2

15%

More common in: Greater than 75 years old, diabetics, women, prior CAD

Question 3

Inferior MI

Answer 3

May cause:
Mitral regurgitation due to papillary muscle dysfunction
Ventricular septal defect from septal rupture
Stable arrhythmias, such as junctional escape, second-degree heart block Mobitz type I. Even Mobitz type II complete heart block usually temporary.
Arrhythmias in the first 48 hours after MI do not imply a need for long-term antiarrhythmic therapy or ICD

Question 4

Anterior MI

Answer 4

May cause:
Ventricular septal defect from septal rupture
Arrhythmias with poor prognosis, such as second-degree heart block Mobitz type II, bundle branch blocks.
Arrhythmias in the first 48 hours after MI do not imply a need for long-term antiarrhythmic therapy or ICD