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.
Often, both left-and right-sided heart failure occur together. CHF symptoms include: Shortness of breath and wheezing after limited physical exertion. In advanced cases shortness of breath occurs even at rest, and attacks of severe breathlessness disturb sleep (left-sided failure). Severe fatigue and weakness.