A heart attack, or myocardial infarction, typically lasts anywhere from a few minutes to several hours. The acute phase occurs when a sudden blockage in a coronary artery restricts blood flow to part of the heart muscle. Mild heart attack symptoms may last 2 to 5 minutes, while a full blockage can cause symptoms lasting over 20 minutes or even several hours
. The duration depends on factors such as the severity and location of the blockage, underlying health conditions, and how quickly medical treatment is received. Partial blockages tend to cause shorter episodes, whereas complete blockages can prolong the attack. Blockages near major arteries affect larger heart areas, leading to longer oxygen deprivation and symptoms
. Symptoms usually do not last for multiple days; if symptoms persist longer, it may indicate a chronic heart condition rather than an ongoing heart attack
. Without treatment, symptoms may last longer, but immediate medical attention is critical to minimize heart damage and improve survival
. In summary:
- Heart attack symptoms can last from a few minutes to several hours.
- Duration varies by blockage severity, location, and treatment speed.
- Prompt emergency care shortens the attack and reduces heart damage.
- Symptoms lasting beyond hours may signal other heart issues, not an active heart attack
