Pseudo-infarction patterns Complications during an Acute Myocard Infarction 6.1 Introduction Infarction of the myocard is accompanied by pain, increased enzyme values and ECG signs. If two of the three typical manifestations are seen it is assumed that an infarction has taken place. Dependent on the severity and duration of the oxygen shortage a more or less severe disturbance can happen in the electrical processes in the heart. Ischemia Lesion Infarction Ischemia and Lesion are respectively the less and most worse form of oxygen shortage, but are usually reversible.
Infarction means necrosis of myocardial tissue.
This gives a permanent damage, although ECG changes can become normal after a longer period of time. These changes take place in the first minute of occlusion of the coronary artery and is followed shortly with damage of the myocard. This is the reason why this phase is rarely registered electrocardiographically. A lesion causes a displacement of the ST-segment. Infarction With an infarction changes in the QRS-complex are seen.