Menu
Nephrology & Renal Medicine

Cardiorenal Syndrome, Type 1 (Acute)

ICD-10 Code
I51.9_2

Acute kidney injury developing on the background of acute decompensated heart failure (ADHF). Driven primarily by elevated central venous pressure causing renal venous congestion, coupled with low cardiac output leading to poor arterial renal perfusion.

Clinical Presentation & Protocol

Patient Usually Complains Of

Patient presents with acute decompensated heart failure (ADHF) characterized by progressive dyspnea, orthopnea, and lower extremity edema. Recent laboratory evaluation reveals a rapid rise in serum creatinine and decline in eGFR, consistent with acute cardiorenal syndrome (Type 1). Symptoms include decreased urine output, weight gain, and signs of systemic venous congestion.

Clinical Examination Findings

Patient appears in acute distress, tachypneic, and orthopneic. Significant findings include jugular venous distension (JVD), positive hepatojugular reflux, and bilateral pitting edema (grade 2-3+) extending to the shins/thighs. Skin turgor is normal, but signs of fluid overload are prominent.

Treatment Protocol

Management focuses on decongestion via intravenous loop diuretics (e.g., furosemide) with strict fluid and sodium restriction. Hemodynamic monitoring is essential; inotropic support (e.g., dobutamine/milrinone) may be initiated if cardiac output is severely compromised. Renal replacement therapy (RRT) is reserved for refractory fluid overload or severe metabolic derangement.

Detailed clinical guide coming soon.