Most common murmur in acute MI is:
Mitral regurgitation: Occurs due to papillary muscle dysfunction Q
Ventricular septal defect: Presents with pansystolic murmur Q, JVP raised Q, cardiac failure Q.
Free wall rupture – with in first week
Usually seen in first infarction, HT, no h/o angina and large Q wave infarct.
Presents with sudden loss of pulse, blood pressure & loss of consciousness. Electro mechanical dissociation occurs Q. Electrical alternans is seen. Q
Cardiac tamponade result Q
Late malignant ventricular arrhythmias: Occur 1-3wks post-MI. Avoid hypokaliemia the most easily avoidable cause. Consider 24h ECG monitoring prior to discharge if large MI.