Question

What is the cause of myocardial shock other than MI ?

• A. acute mitral regurgitation
• B. ventricular septal rupture
• C. isolated right ventricular shock
• D. all of the above

Answer 1

The Correct Option is D

Cardiogenic shock is a condition where the heart suddenly cannot pump enough blood to meet the body's needs. Myocardial infarction (MI) is a common cause, but there are several other causes to consider as well:

• Acute Mitral Regurgitation: This occurs when the mitral valve in the heart suddenly becomes incompetent, allowing blood to flow backward from the left ventricle into the left atrium during systole, leading to volume overload and reduced cardiac output.
• Ventricular Septal Rupture: This condition involves a tear in the ventricular septum, resulting in an abnormal communication between the left and right ventricles. This shunt significantly reduces the efficiency of the heart as a pump and can quickly lead to shock.
• Isolated Right Ventricular Shock: This condition can occur due to right ventricular infarction, pulmonary embolism, or conditions that strain the right side of the heart, leading to decreased right ventricular output and subsequent systemic shock.

Each of these conditions impacts the heart's ability to function as an effective pump, thus leading to myocardial shock. Therefore, the correct answer is all of the above.