Cardiorenal syndrome (CRS) is a condition in which the kidneys do not function properly due to cardiac dysfunction or the structure and function of the heart is impaired due to kidney problems.
Cardiorenal syndrome is classified into five types as detailed below:
It is a sudden worsening of heart function which leads to acute kidney injury. The heart conditions which contribute to such dysfunction of kidneys include:
Sometimes this type of condition arises due to the use of contrast medium for diagnostic testing of acute cardiac conditions.
It indicates long-term abnormalities of the heart function which can lead to permanent damage to the kidney. Such heart conditions include:
It is a sudden worsening of kidney function which leads to acute heart disorders. Such kidney conditions include:
This type of CRS may also result with the use of contrast medium for diagnostic testing of acute kidney problems.
This type of CRS occurs due to long-term kidney diseases which lead to an increased risk of cardiovascular events such as:
In this type of CRS both the heart and kidney functions are affected due to certain medical conditions such as:
The exact cause of cardiorenal syndrome is not known. However, the possible mechanisms are as follows:
Due to the co-existence of heart and kidney problems, the following consequences occur:
If a patient has cardiovascular problems, then the doctor critically evaluates for the underlying kidney problems and vice versa.
It is challenging to treat cardiorenal syndrome. Treatment options for CRS include:
During the therapy, heart and kidneys are regularly monitored to check for their efficient functioning.
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