Cardiorenal Syndrome: Clinical Outcome Study

Area of Science:

• Cardiology
• Nephrology
• Internal Medicine

Background:

• Cardiorenal syndrome (CRS) represents a significant medical challenge, involving the interplay between heart and kidney dysfunction.
• Understanding the complex mechanisms of CRS is crucial for managing patients with coexisting heart and renal insufficiency.

Purpose of the Study:

• To classify cardiorenal syndrome subtypes in ICU patients.
• To evaluate clinical outcomes at discharge and three months post-discharge.
• To identify predictors of non-favorable outcomes in CRS patients.

Main Methods:

• A longitudinal study of 50 ICU patients with CRS.
• Classification of patients into subtypes based on the RONCO classification (2008).
• Outcomes defined as favorable (stable) or unfavorable (hemodialysis or death).

Main Results:

• The majority of patients were male (66%), with a mean age around 64 years.
• Type-1 CRS was most prevalent (46%), followed by Type-4 (26%) and Type-2 (22%).
• Non-favorable outcomes (dialysis/death) were higher in CRS-4 (22%) and CRS-1 (16%) subtypes. Anemia, elevated creatinine, low eGFR, and low ejection fraction predicted worse outcomes.

Conclusions:

• CRS affects all age groups, predominantly older males, with higher prevalence of CRS-1 and CRS-4.
• Prognosis is unfavorable in CRS-1, CRS-4, and CRS-5 subtypes, with sepsis being a major cause of mortality in CRS-5.
• Pre-existing renal impairment, anemia, reduced eGFR, and low ejection fraction are significant risk factors for adverse outcomes in CRS.