Congestive States: Pathophysiology of Fluid Overload in Heart, Liver, and Kidney Failure

Congestive denotes abnormal fluid accumulation in tissues or cavities due to impaired organ function causing venous/lymphatic backup.

Major Congestive Syndromes

Net filtration = Kf × [(Pc − Pi) − σ(πc − πi)]

Identify primary driver (heart vs. liver vs. kidney vs. mixed).
Diuresis (loop diuretics) for CHF; albumin + diuretic for cirrhosis; renal replacement for uremic overload.
Treat underlying cause (GDMT for HFrEF, antivirals for hepatitis, etc.).
Monitor: weight, I/O, electrolytes, renal function, hemodynamics.

"Congestive" is a descriptor of hemodynamic state, not a standalone diagnosis. Always specify the organ system.

Syndrome	Primary Organ	Mechanism	Key Manifestations
Congestive Heart Failure (CHF)	Heart	↓ Cardiac output → ↑ venous pressure → transudation	Pulmonary edema, peripheral edema, JVD, hepatomegaly, ascites
Congestive Hepatopathy / Cardiac Cirrhosis	Liver (passive)	Chronic hepatic venous congestion (RHF)	Hepatomegaly, RUQ pain, ascites, elevated LFTs, coagulopathy
Congestive Nephropathy	Kidney (passive)	Renal venous congestion → ↓ GFR, ↑ renin	Worsening renal function in CHF (cardiorenal syndrome)
Congestive Splenomegaly	Spleen (passive)	Portal hypertension (cirrhosis, CHF)	Spleen enlargement, cytopenias, abdominal fullness