Definition. An electrocardiographic finding of pathologic Q waves, which is suggestive of myocardial infarction of one or more regions of the heart, without evidence of current or ongoing acute infarction.
What are the signs of old myocardial infarction?
pressure or tightness in the chest. pain in the chest, back, jaw, and other areas of the upper body that lasts more than a few minutes or that goes away and comes back. shortness of breath. sweating.
What are the three types of MI?
The three types of heart attacks are: ST segment elevation myocardial infarction (STEMI) non-ST segment elevation myocardial infarction (NSTEMI) coronary spasm, or unstable angina.
Is MI and stemi same?
Myocardial infarction is the medical term for a heart attack. An infarction is a blockage of blood flow to the myocardium, the heart muscle. That blockage causes the heart muscle to die. A STEMI is a myocardial infarction that causes a distinct pattern on an electrocardiogram (abbreviated either as ECG or EKG).
What is an old inferior infarction?
Inferior wall myocardial infarction (MI) occurs from a coronary artery occlusion with resultant decreased perfusion to that region of the myocardium. Unless there is timely treatment, this results in myocardial ischemia followed by infarction.
What is the difference between myocardial ischemia and myocardial infarction?
Myocardial ischemia occurs when blood flow to the heart muscle (myocardium) is obstructed by a partial or complete blockage of a coronary artery by a buildup of plaques (atherosclerosis). If the plaques rupture, you can have a heart attack (myocardial infarction).
What are the two types of myocardial infarction?
Type 1: Spontaneous MI caused by ischemia due to a primary coronary event (eg, plaque rupture, erosion, or fissuring; coronary dissection) Type 2: Ischemia due to increased oxygen demand (eg, hypertension), or decreased supply (eg, coronary artery spasm or embolism, arrhythmia, hypotension)
What is the difference between Type 1 and Type 2 myocardial infarction?
Type 1 MI is a primary coronary arterial event attributable to atherothrombotic plaque rupture or erosion. Type 2 MI occurs secondary to an acute imbalance in myocardial oxygen supply and demand without atherothrombosis.
What is the most common type of myocardial infarction?
Type 2 MI is the most common type of MI encountered in clinical settings in which is there is demand-supply mismatch resulting in myocardial ischemia.
What is the ICD 10 code for STEMI?
ST elevation (STEMI) myocardial infarction of unspecified site. I21. 3 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
What is a NSTEMI vs STEMI?
NSTEMI is caused by a block in a minor artery or a partial obstruction in a major artery. STEMI occurs when a ruptured plaque blocks a major artery completely.
How do you identify a STEMI?
Classically, STEMI is diagnosed if there is >1-2mm of ST elevation in two contiguous leads on the ECG or new LBBB with a clinical picture consistent with ischemic chest pain. Classically the ST elevations are described as “tombstone” and concave or “upwards” in appearance.
Which leads are inferior MI?
Upon ECG analysis, inferior STEMI displays ST-elevation in leads II, III, and aVF.
What is inferior infarct age undetermined?
If the finding on an ECG is “septal infarct, age undetermined,” it means that the patient possibly had a heart attack at an undetermined time in the past. A second test is typically taken to confirm the finding, because the results may instead be due to incorrect placement of electrodes on the chest during the exam.
What is inferior STEMI?
An inferior wall MI — also known as IWMI, or inferior MI, or inferior ST segment elevation MI, or inferior STEMI — occurs when inferior myocardial tissue supplied by the right coronary artery, or RCA, is injured due to thrombosis of that vessel.
