Quick Answer. Cardiotonic drugs are substances that increase the contracting mechanism within the heart, thereby causing more blood to be pumped throughout the circulatory system. These drugs usually affect intracellular calcium levels in the heart muscle to achieve the desired increase in muscle action.
Like the name suggests, the entire CIC hearing aid fits into the ear canal. There is nothing on the outside of the ear, making it virtually unnoticeable. The CIC hearing aid is custom-made to fit into your ear canal to ensure a perfect fit.
Ask the Audiologist. Completely in the Canal Hearing Aids. The past several years have seen a major milestone in the development of ever smaller hearing aids. These new hearing aids fit completely in the ear canal (see photos), providing a closer coupling to the eardrum and near invisibility to the casual observer. Potential benefits of these new CIC aids include a reduction of the occlusion effect, absence of wind noise, and the ability to use the telephone normally.