What causes myocardial contractility decline?

Heart contractility may decrease with drug action, heart disease, nervous system disorders.

1. Drug action

Some drugs may also cause myocardial contractility to decrease. Common drugs include certain antiarrhythmic drugs, some antihypertensive drugs, etc.

2. Heart disease

Heart valve disease, coronary atherosclerotic heart disease and other heart diseases may also cause myocardial contractility to decrease.

3. Nervous system disorders Nervous system

disorders may also cause myocardial contractility to decrease. Common causes include sympathetic nerve dystonia, parasympathetic nerve dystonia, etc.