The increased production of pericardial fluid leading to restriction of the movement of the heart is called .

The increased production of pericardial fluid leading to restriction of the movement of the heart is called cardiac tamponade.

Explanation:

Cardiac tamponade refers to the pressure in the heart caused by the accumulation of blood or fluid between the two layers of the pericardium, compressing the heart. This disorder affects the pumping capacity of the heart, which does not allow the heart to fill with blood. As a result, less blood is pumped into the body, causing a severe picture under cardiac output or shock (with a dangerous decrease in blood pressure) and even death.

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