Cardiorenal syndrome in geriatric patients

The unfavorable mutual influence of the kidney and heart functions in acute or chronic kidney and/or heart failure has defined the cardiorenal syndrome (CRS) since a consensus conference in 2004. The pathophysiological considerations and the subsequent treatment approaches determine the classification into five types. The syndrome has a high prevalence in geriatric patients. The interactions of medications on one or the other organ system require an interaction of treatment modalities in order to improve the prognosis and prevent acute deterioration. Exact knowledge of the respective indications, differential treatment approaches and specifics in dealing with CRS can improve the current undertreatment due to concerns about side effects.