Innocent Murmur
A murmur heard in healthy children, which does not signify any underlying heart disease or defect. These soft heart murmurs are very common and are of no significance.
Cardiac
Inotropes
Positive inotropes: Any medicine that increases the strength of the heart’s contraction. Negative inotropes: Any medicine that decreases the strength of the heart’s contraction and the blood pressure in the vessels.
Inappropriate Sinus Tachycardia [IST]
A condition in which a person’s heart rate, at rest and during exertion, is abnormally elevated for no apparent reason. It is defined as a resting heart rate greater than 90 beats per minute on average that can rise to very high levels with even minimal exertion. These inappropriately elevated heart rates are accompanied by … Read more