Abstract

Heart and renal illnesses are prevalent, more frequently seen, and frequently coexist. A consensus meeting was recently held by the Acute Dialysis Quality Initiative (ADQI) Working Group to create a classification system for the CRS and for five other subtypes. Several CRS subtypes most likely have similar pathophysiologic pathways, but they also have unique clinical characteristics in terms of triggers, risk assessment, natural history, and prognosis. Understanding the overall illness burden for each CRS subtype, along with related morbidity, mortality, and health resource use, depends increasingly on knowledge of the epidemiology of heart-kidney interaction stratified by the suggested CRS subtypes. The epidemiology of CRS must also be understood in order to identify any significant information gaps and to support the design of clinical research. The epidemiology of the cardiac renal syndrome and its subtypes will be outlined in this essay.