Cardio Pathology Hemodynamics Matcher (Mobile Fix)

Pathology	Preload (LVEDV)	Afterload	Contractility	Ejection Fraction (EF)	Forward SV
Aortic Stenosis (AS)	↑	↑↑	↔	↔	↓
Aortic Regurgitation (AR)	↑↑	↑	↔	↔ or ↑	↔ or ↓
Mitral Stenosis (MS)	↓ or ↔	↔	↔	↔	↓
Mitral Regurgitation (MR)	↑	↓	↔	↑	↓

Pathology	Preload (LVEDV)	Afterload	Contractility	Ejection Fraction (EF)
Dilated CM	↑↑	↑	↓↓	↓↓
Hypertrophic CM (HOCM)	↓ or ↔	↑ (dynamic)	↑	↑
Restrictive CM	↓ or ↔	↔	↔	↔

Mitral Regurgitation (MR): Unique because Afterload decreases (blood flows backward into low-pressure atrium), leading to a "supernormal" (high) EF.
Aortic Stenosis (AS): Massive Afterload leads to concentric hypertrophy and a stiff ventricle that needs higher Preload to fill.
Dilated CM (Systolic Failure): Big, baggy, weak heart. Can't squeeze. EF is low, Preload is massive.
HOCM (Diastolic Failure): Thick, strong muscle. Contractility and EF are high, but it can't relax to fill (low Preload). Obstruction is dynamic.
Restrictive CM: Rigid walls (e.g., Amyloidosis). Can't stretch to fill. Often presents with Kussmaul sign.

Afterload ↑↑ (Massive resistance)

Preload ↑ (Stiff ventricle compensates)

Preload ↑↑ (Volume overload)

Total SV high, Forward SV ↓ or ↔

Preload ↓ or ↔ (LV underfilled)

Main issue is upstream (Left Atrium)

Afterload ↓ (Low pressure runoff)

Ejection Fraction ↑ ("Supernormal")

Contractility ↓↓ (Weak muscle)

Preload ↑↑ (Big baggy heart)

Ejection Fraction ↓↓ (Systolic failure)

Contractility ↑ & EF ↑ (Strong muscle)

Dynamic outflow obstruction

Preload ↓ (Stiff, diastolic failure)

Preload ↓ (Rigid walls cannot stretch)

Classic sign: Kussmaul sign

Cardiovascular Pathology Hemodynamics Matcher