Which condition is the leading cause of death in myocardial infarction?

Which condition is the leading cause of death in myocardial infarction?

• A. Sepsis
• B. Pulmonary embolism
• C. Stroke
• D. Cardiogenic shock

Answer: (D)

Extent of heart muscle damage from a myocardial infarction can cripple the heart’s ability to pump blood. When the left ventricle can no longer generate enough stroke volume, cardiac output plummets, tissue perfusion falls, and multiple organs begin to fail—this is cardiogenic shock. It is a major cause of death in the setting of MI because the damaged pump cannot sustain circulation, especially with large infarcts or delayed reperfusion. While sepsis, pulmonary embolism, and stroke can occur and cause serious illness, they are not the primary mechanism driving mortality after an MI. Preventing and treating cardiogenic shock through rapid reperfusion and circulatory support is central to improving survival in patients with extensive myocardial injury.

Extent of heart muscle damage from a myocardial infarction can cripple the heart’s ability to pump blood. When the left ventricle can no longer generate enough stroke volume, cardiac output plummets, tissue perfusion falls, and multiple organs begin to fail—this is cardiogenic shock. It is a major cause of death in the setting of MI because the damaged pump cannot sustain circulation, especially with large infarcts or delayed reperfusion. While sepsis, pulmonary embolism, and stroke can occur and cause serious illness, they are not the primary mechanism driving mortality after an MI. Preventing and treating cardiogenic shock through rapid reperfusion and circulatory support is central to improving survival in patients with extensive myocardial injury.