| CARDIORENAL SYNDROME | NAME | DESCRIPTION |
| TYPE 1 | Acute cardiorenal syndrome | It appears after an abrupt worsening of cardiac function, mainly due to the acute decompensation of the chronic heart failure. |
| TYPE 2 | Chronic cardiorenal syndrome | It is characterized by the chronic and progressive deterioration of renal function due to chronic heart failure. |
| TYPE 3 | Acute renocardiac syndrome | It consists of acute heart disorder (acute heart failure, arrhythmia or ischemia) in the context of an acute kidney failure. |
| TYPE 4 | Chronic renocardiac syndrome | It is characterized by the development of a chronic heart disease (with hypertrophy and left ventricular dysfunction, especially dyastolic), and an increased risk of adverse cardiovascular events in the context of chronic kidney disease. |
| TYPE 5 | Secondary cardiorenal syndrome | Both organs are affected simultaneously. It usually appears as a consequence of systemic diseases such as sepsis, vasculitis or amyloidosis, because the underlying disease causes a simultaneous failure of both organs. |