191
edits
Line 7: | Line 7: | ||
* A fast rhythmdisturbance, causing a disbalance in supply and demand of energy. | * A fast rhythmdisturbance, causing a disbalance in supply and demand of energy. | ||
A short period of ischemia causes ''reversibele'' effects: The heartcells will be able to recover. When the ep[isode of ischemia lasts for a longer period of time, heartmuscle cells will die. This is called a '''heartattack''' or '''myocardial infarction'''. That is why it is critical to recognize ischemia on the ECG in an early stage. | |||
Severe ischemia will reuslts in ECG changes within minutes. While the ischemia lasts, sverela ECG changes will occur and disappear again. Therefore, it can be difficut to estimate the duration of the ischemia on the ECG, which is crucial for adequate treatment. | |||
''' | '''Signs and sympotms of myocardial ischemia:''' | ||
* beklemmende pijn midden op de borst (angina pectoris), achter het borstbeen, vaak uitstralend naar de onderkaak of linkerarm | * beklemmende pijn midden op de borst (angina pectoris), achter het borstbeen, vaak uitstralend naar de onderkaak of linkerarm | ||
*doodsangst | *doodsangst |