Minoxidil; Side Effects

Spasm on Coronary Artery

Coronary artery sometimes becomes spastic in stress or even at rest. Temporary spasm of smooth muscle on the wall of coronary artery causes constriction of the vessel.

Narrowing in the lumen of coronary artery results in ischemia of myocardium. It is difficult to predict when spasm will occur like a cramp in the calf muscle.

After recovering from the spasm on the coronary artery, there remains normal coronary artery without organic narrowing.

Cardiac catheter examination cannot identify the causes of cardiac ischemia after the stenosis on the coronary artery has disappeared.

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