Cardiorenal Syndrome Type 1
Also written as: CRS Type 1 — Cardiorenal Syndrome Type 1
Acute worsening of cardiac function leading to acute kidney injury, commonly encountered in elderly patients with heart failure exacerbations.
Full Definition
Cardiorenal syndrome Type 1 represents acute worsening of cardiac function that directly precipitates acute kidney injury, typically occurring within hours to days of the cardiac event. In geriatric cardiology, this syndrome is frequently encountered during acute heart failure exacerbations in elderly patients who often have baseline chronic kidney disease and reduced renal reserve. The pathophysiology involves decreased renal perfusion due to reduced cardiac output, increased venous congestion, and activation of neurohormonal systems including the renin-angiotensin-aldosterone system. Management requires careful balance between cardiac optimization and renal protection, often necessitating adjustment of heart failure medications that may further compromise kidney function. Early recognition and intervention are crucial as the development of acute kidney injury in this setting portends worse outcomes and may limit therapeutic options.
Usage
Usage note: Part of the classification system for cardiorenal syndromes; specify type number for precision.
In Context
- "The patient developed cardiorenal syndrome Type 1 following acute heart failure exacerbation with creatinine rising from 1.2 to 2.8 mg/dL." — Hospital progress note
- "Management of cardiorenal syndrome Type 1 required careful titration of diuretics to optimize volume status while protecting kidney function." — Nephrocardiology consultation