Karst terrane: landscape underlain by soluble bedrock, typically limestone, with a suite of distinctive features such as caves that are related to the solubility of the bedrock. Features that characterize karst terranes: 1  caves, and cavernous development, subsurface drainage.
Left-sided heart failure is a life-threatening condition in which the left side of the heart cannot pump enough blood to the body.eft-sided heart failure is a life-threatening condition in which the left side of the heart cannot pump enough blood to the body.
However, it is quite susceptible to failure when there is a sudden increase in afterload, such as in left-sided heart failure (retrograde pressure transmission to the pulmonary circulation). Consequently, the most common cause of right-sided heart failure is left-sided heart failure. Although less common, isolated right heart failure does arise as a result of primary lung pathology and in such cases is referred to as cor pulmonale.